In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: Prevent UAF caused by non-leader exec() race Wongi and Jungwoo decoded and reported a non-leader exec() related race which can result in an UAF: sys_timer_delete() exec() posix_cpu_timer_del() // Observes old leader p = pid_task(pid, pid_type); de_thread() switch_leader(); release_task(old_leader) __exit_signal(old_leader) sighand = lock(old_leader, sighand); posix_cpu_timers*_exit(); sighand = lock_task_sighand(p) unhash_task(old_leader); sh = lock(p, sighand) old_leader->sighand = NULL; unlock(sighand); (p->sighand == NULL) unlock(sh) return NULL; // Returns without action if(!sighand) return 0; free_posix_timer(); This is "harmless" unless the deleted timer was armed and enqueued in p->signal because on exec() a TGID targeted timer is inherited. As sys_timer_delete() freed the underlying posix timer object run_posix_cpu_timers() or any timerqueue related add/delete operations on other timers will access the freed object's timerqueue node, which results in an UAF. There is a similar problem vs. posix_cpu_timer_set(). For regular posix timers it just transiently returns -ESRCH to user space, but for the use case in do_cpu_nanosleep() it's the same UAF just that the k_itimer is allocated on the stack. Also posix_cpu_timer_rearm() fails to rearm the timer, which means it stops to expire. While debating solutions Frederic pointed out another problem: posix_cpu_timer_del(tmr) __exit_signal(p) posix_cpu_timers*_exit(p); unhash_task(p); p->sighand = NULL; sh = lock_task_sighand(p) sighand = p->sighand; if (!sighand) return NULL; lock(sighand); if (!sh) WARN_ON_ONCE(timer_queued(tmr)); On weakly ordered architectures it is not guaranteed that posix_cpu_timer_del() will observe the stores in posix_cpu_timers*_exit() when p->sighand is observed as NULL, which means the WARN() can be a false positive. Solve these issues by: 1) Changing the store in __exit_signal() to smp_store_release(). 2) Adding a smp_acquire__after_ctrl_dep() into the !sighand path of lock_task_sighand(). 3) Creating a helper function for looking up the task and locking sighand which does not return when sighand == NULL. Instead it retries the task lookup and only if that fails it gives up. 4) Using that helper in the three affected functions. #1/#2 ensures that the reader side which observes sighand == NULL also observes all preceeding stores, i.e. the stores in posix_cpu_timers*_exit() and the ones in unhash_task(). #3 ensures that the above described non-leader exec() situation is handled gracefully. When the task lookup returns the old leader, but sighand == NULL then it retries. In the non-leader exec() case the subsequent task lookup will observe the new leader due to #1/#2. In normal exit() scenarios the subsequent lookup fails. When the task lookup fails, the function also checks whether the timer is still enqueued and issues a warning if that's the case. Unfortunately there is nothing which can be done about it, but as the task is already not longer visible the timer should not be accessed anymore. This check also requires memory ordering, which is not provided when the first lookup fails. To achieve that the check is preceeded by a smp_rmb() which pairs with the smp_wmb() in write_seqlock() in __exit_signal(). That ensures that the stores in posix_cpu_timers*_exit() are visible. The history of the non-leader exec() issue goes back to the early days of posix CPU timers, which stored a pointer to the group leader task in the timer. That obviously fails when a non-leader exec() switches the leader. commit e0a70217107e ("posix-cpu-timers: workaround to suppress the problems with mt exec") added a temporary workaround for that in 2010 which surv ---truncated---

redhat RHSA-2026:57251: RHSA-2026:57251: kernel security, bug fix, and enhancement update (Important)

redhat RHSA-2026:57252: RHSA-2026:57252: kernel security, bug fix, and enhancement update (Important)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2058 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    NFSv4/flexfiles: reject zero filehandle version count (CVE-2026-53392)

    In the Linux kernel, the following vulnerability has been resolved:

    nfsd: reset write verifier on deferred writeback errors (CVE-2026-53393)

    In the Linux kernel, the following vulnerability has been resolved:

    i2c: core: fix adapter registration race

    Adapters can be looked up based on their id using i2c_get_adapter()which takes a reference to the embedded     struct device.

    Make sure that the adapter (including its struct device) has beeninitialised before adding it to the IDR     to avoid accessing uninitialiseddata which could, for example, lead to NULL-pointer dereferences oruse-     after-free.

    Note that the i2c-dev chardev, which is registered from a bus notifier,currently uses i2c_get_adapter() so     the adapter needs to be added to theIDR before registration. (CVE-2026-53400)

    In the Linux kernel, the following vulnerability has been resolved:

    fbdev: fbcon: fix out-of-bounds read in err_out of fbcon_do_set_font()

    When fbcon_do_set_font() fails (e.g., due to a memory allocation failureinside vc_resize() under heavy     memory pressure), it jumps to the `err_out`label to roll back the console state. However, the current     rollback logicforgets to restore the `hi_font` state, leading to a severe state machinecorruption.

    Earlier in the function, `set_vc_hi_font()` might be called to change`vc->vc_hi_font_mask` and mutate the     screen buffer. If `vc_resize()`subsequently fails, the `err_out` path restores `vc_font.charcount`but     entirely skips rolling back the `vc_hi_font_mask` and the screenbuffer.

    This mismatch leaves the terminal in a desynchronized state. Because`vc_hi_font_mask` remains set, the VT     subsystem will still acceptcharacter indices greater than 255 from userspace and write them to thescreen     buffer. Subsequent rendering calls (e.g., `fbcon_putcs()`) willthen use these inflated indices to access     the reverted, 256-characterfont array, leading to a deterministic out-of-bounds read and potentialkernel     memory disclosure.

    Fix this by adding the missing rollback logic for the `hi_font` maskand screen buffer in the error path.
    (CVE-2026-53402)

    In the Linux kernel, the following vulnerability has been resolved:

    KVM: Replace guest-triggerable BUG_ON() in ioeventfd datamatch with get_unaligned() (CVE-2026-63806)

    In the Linux kernel, the following vulnerability has been resolved:

    block: Avoid mounting the bdev pseudo-filesystem in userspace (CVE-2026-63810)

    In the Linux kernel, the following vulnerability has been resolved:

    fbdev: fix use-after-free in store_modes() (CVE-2026-63826)

    In the Linux kernel, the following vulnerability has been resolved:

    net: ip_gre: require CAP_NET_ADMIN in the device netns for changelink (CVE-2026-63829)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: ebtables: move to two-stage removal scheme (CVE-2026-64077)

    In the Linux kernel, the following vulnerability has been resolved:

    xfs: fail recovery on a committed log item with no regions

    If the first op of a transaction is a bare transaction header(len == sizeof(struct xfs_trans_header)),     xlog_recover_add_to_trans()adds an item but no region, leaving it on r_itemq with ri_cnt == 0 andri_buf ==     NULL.

    The header can be split across op records, so later ops may still addregions; the item is only invalid if     the transaction commits with none.The runtime commit path never emits such a transaction, so this     onlyhappens on a crafted log.  It came from an AI-assisted code audit of therecovery parser.

    xlog_recover_reorder_trans() calls ITEM_TYPE() on the item, which reads*(unsigned short
    *)item->ri_buf[0].iov_base and faults on the NULLri_buf.  Reject it there, before the commit handlers that     also readri_buf[0].

    KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]RIP: 0010:xlog_recover_reorder_trans     (fs/xfs/xfs_log_recover.c:1836)xlog_recover_commit_trans     (fs/xfs/xfs_log_recover.c:2043)xlog_recover_process_data     (fs/xfs/xfs_log_recover.c:2501)xlog_do_recovery_pass (fs/xfs/xfs_log_recover.c:3244)xlog_recover     (fs/xfs/xfs_log_recover.c:3493)xfs_log_mount (fs/xfs/xfs_log.c:618)xfs_mountfs     (fs/xfs/xfs_mount.c:1034)xfs_fs_fill_super (fs/xfs/xfs_super.c:1938)vfs_get_tree     (fs/super.c:1695)path_mount (fs/namespace.c:4161)__x64_sys_mount (fs/namespace.c:4367) (CVE-2026-64187)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: ipset: fix race between dump and ip_set_list resize (CVE-2026-64189)

    In the Linux kernel, the following vulnerability has been resolved:

    fuse: re-lock request before returning from fuse_ref_folio() (CVE-2026-64266)

    In the Linux kernel, the following vulnerability has been resolved:

    i2c: core: fix adapter deregistration race (CVE-2026-64279)

    In the Linux kernel, the following vulnerability has been resolved:

    exfat: bound uniname advance in exfat_find_dir_entry() (CVE-2026-64296)

    In the Linux kernel, the following vulnerability has been resolved:

    NFSv4: include MAY_WRITE in open permission mask for O_TRUNC (CVE-2026-64298)

    In the Linux kernel, the following vulnerability has been resolved:

    tracing: Prevent out-of-bounds read in glob matching (CVE-2026-64299)

    In the Linux kernel, the following vulnerability has been resolved:

    crypto: drbg - Fix returning success on failure in CTR_DRBG (CVE-2026-64306)

    In the Linux kernel, the following vulnerability has been resolved:

    crypto: pcrypt - restore callback for non-parallel fallback (CVE-2026-64312)

    In the Linux kernel, the following vulnerability has been resolved:

    crypto: ecc - Fix carry overflow in vli multiplication (CVE-2026-64313)

    In the Linux kernel, the following vulnerability has been resolved:

    isofs: bound Rock Ridge symlink components to the SL record (CVE-2026-64317)

    In the Linux kernel, the following vulnerability has been resolved:

    udf: validate sparing table length as an entry count, not a byte count (CVE-2026-64322)

    In the Linux kernel, the following vulnerability has been resolved:

    udf: validate VAT header length against the VAT inode size (CVE-2026-64323)

    In the Linux kernel, the following vulnerability has been resolved:

    udf: validate free block extents against the partition length (CVE-2026-64324)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf: Allow LPM map access from sleepable BPF programs (CVE-2026-64352)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf: Reject fragmented frames in devmap (CVE-2026-64355)

    In the Linux kernel, the following vulnerability has been resolved:

    HID: multitouch: fix out-of-bounds bit access on mt_io_flags (CVE-2026-64364)

    In the Linux kernel, the following vulnerability has been resolved:

    posix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path (CVE-2026-64370)

    In the Linux kernel, the following vulnerability has been resolved:

    proc: protect ptrace_may_access() with exec_update_lock (part 1) (CVE-2026-64371)

    In the Linux kernel, the following vulnerability has been resolved:

    cpufreq: pcc: fix use-after-free and double free in _OSC evaluation (CVE-2026-64372)

    In the Linux kernel, the following vulnerability has been resolved:

    cpufreq: Fix hotplug-suspend race during reboot (CVE-2026-64373)

    In the Linux kernel, the following vulnerability has been resolved:

    sched/rt: Have RT_PUSH_IPI be default off for non PREEMPT_RT (CVE-2026-64374)

    In the Linux kernel, the following vulnerability has been resolved:

    proc: protect ptrace_may_access() with exec_update_lock (FD links) (CVE-2026-64375)

    In the Linux kernel, the following vulnerability has been resolved:

    writeback: fix race between cgroup_writeback_umount() and inode_switch_wbs() (CVE-2026-64378)

    In the Linux kernel, the following vulnerability has been resolved:

    smb: client: harden POSIX SID length parsing (CVE-2026-64380)

    In the Linux kernel, the following vulnerability has been resolved:

    smb: client: Fix next buffer leak in receive_encrypted_standard() (CVE-2026-64381)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: ebtables: terminate table name before find_table_lock() (CVE-2026-64411)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: ebtables: module names must be null-terminated (CVE-2026-64412)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: ebtables: zero chainstack array (CVE-2026-64413)

    In the Linux kernel, the following vulnerability has been resolved:

    net: ipv4: bound TCP reordering sysctl writes and MTU probe sizes (CVE-2026-64422)

    In the Linux kernel, the following vulnerability has been resolved:

    ipv4: igmp: remove multicast group from hash table on device destruction (CVE-2026-64423)

    In the Linux kernel, the following vulnerability has been resolved:

    io_uring/io-wq: re-check IO_WQ_BIT_EXIT for each linked work item (CVE-2026-64425)

    In the Linux kernel, the following vulnerability has been resolved:

    fs/ntfs3: validate Dirty Page Table capacity in log_replay copy_lcns (CVE-2026-64432)

    In the Linux kernel, the following vulnerability has been resolved:

    audit: Fix data races of skb_queue_len() readers on audit_queue (CVE-2026-64435)

    In the Linux kernel, the following vulnerability has been resolved:

    net: af_key: initialize alg_key_len for IPComp states (CVE-2026-64436)

    In the Linux kernel, the following vulnerability has been resolved:

    smb: client: restrict implied bcc[0] exemption to responses without data area (CVE-2026-64448)

    In the Linux kernel, the following vulnerability has been resolved:

    tipc: fix out-of-bounds read in broadcast Gap ACK blocks (CVE-2026-64450)

    In the Linux kernel, the following vulnerability has been resolved:

    hwrng: virtio: clamp device-reported used.len at copy_data() (CVE-2026-64456)

    In the Linux kernel, the following vulnerability has been resolved:

    mm/damon/ops-common: handle extreme intervals in damon_hot_score() (CVE-2026-64458)

    In the Linux kernel, the following vulnerability has been resolved:

    usb: xhci: Fix sleep in atomic context in xhci_free_streams() (CVE-2026-64465)

    In the Linux kernel, the following vulnerability has been resolved:

    vfio/mlx5: Fix racy bitfields and tighten struct layout (CVE-2026-64472)

    In the Linux kernel, the following vulnerability has been resolved:

    vfio/pci: Release the VGA arbiter client on register_device() failure (CVE-2026-64475)

    In the Linux kernel, the following vulnerability has been resolved:

    vfio/pci: Latch disable_idle_d3 per device (CVE-2026-64476)

    In the Linux kernel, the following vulnerability has been resolved:

    ACPI: CPPC: Suppress UBSAN warning caused by field misuse (CVE-2026-64512)

    In the Linux kernel, the following vulnerability has been resolved:

    userfaultfd: gate must_wait writability check on pte_present() (CVE-2026-64514)

    In the Linux kernel, the following vulnerability has been resolved:

    net/sched: cls_api: Handle TC_ACT_CONSUMED in tcf_qevent_handle (CVE-2026-64530)

    In the Linux kernel, the following vulnerability has been resolved:

    fs/ntfs3: bound NTFS_DE view.data_off in UpdateRecordData{Root,Allocation} (CVE-2026-64532)

    In the Linux kernel, the following vulnerability has been resolved:

    fs/ntfs3: validate lcns_follow in log_replay conversion (CVE-2026-64533)

    In the Linux kernel, the following vulnerability has been resolved:

    ipv6: Fix null-ptr-deref in fib6_nh_mtu_change(). (CVE-2026-64538)

    In the Linux kernel, the following vulnerability has been resolved:

    crypto: asymmetric_keys - fix OOB read in pefile_digest_pe_contents (CVE-2026-64544)

    In the Linux kernel, the following vulnerability has been resolved:

    net, bpf: check master for NULL in xdp_master_redirect() (CVE-2026-64545)

    In the Linux kernel, the following vulnerability has been resolved:

    drm/edid: fix OOB read in drm_parse_tiled_block() (CVE-2026-64546)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf, sockmap: reject overflowing copy + len in bpf_msg_push_data() (CVE-2026-64548)

    In the Linux kernel, the following vulnerability has been resolved:

    sctp: validate STALE_COOKIE cause length before reading staleness (CVE-2026-64551)

    In the Linux kernel, the following vulnerability has been resolved:

    virtio-net: fix len check in receive_big() (CVE-2026-64552)

    In the Linux kernel, the following vulnerability has been resolved:

    net: psample: fix info leak in PSAMPLE_ATTR_DATA (CVE-2026-64553)

    In the Linux kernel, the following vulnerability has been resolved:

    posix-cpu-timers: Prevent UAF caused by non-leader exec() race (CVE-2026-64560)

    In the Linux kernel, the following vulnerability has been resolved:

    KVM: x86: Check for invalid/obsolete root *after* making MMU pages available

    Check for a stale page fault, i.e. for an invalid and/or obsolete root,after making MMU pages available     for the shadow MMU.  If reclaiming shadowpages zaps an in-use root, i.e. marks it invalid, then KVM will     attempt tomap memory into an invalid root.  On its own, populating an invalid root isfine, but because     child shadow pages inherit their parent's role, anychildren created during the map/fetch will be created     as invalid pages,thus violating KVM's invariant that invalid pages are never on the list ofactive MMU     pages.

    Note, the underlying flaw has existed since KVM first started trackinginvalid roots in 2008 (commit     2e53d63acba7, KVM: MMU: ignore zapped rootpagetables), but the true badness only came along in 2020     (Linux 5.9)with the invariant that invalid shadow pages can't be on the list ofactive pages.

    Note #2, inheriting role.invalid when creating child shadow pages is alsofar from ideal; that flaw will be     addressed separately. (CVE-2026-64561)

    In the Linux kernel, the following vulnerability has been resolved:

    btrfs: do not trim a device which is not writeable (CVE-2026-64593)

    In the Linux kernel, the following vulnerability has been resolved:

    KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode (CVE-2026-64604)

    In the Linux kernel, the following vulnerability has been resolved:

    ntfs3: cap RESTART_TABLE free-chain walker at rt->used (CVE-2026-72193)

    In the Linux kernel, the following vulnerability has been resolved:

    fs/ntfs3: bound DeleteIndexEntryAllocation memmove length (CVE-2026-72197)

    In the Linux kernel, the following vulnerability has been resolved:

    lockd: Plug nlm_file refcount leak on cached nlm_do_fopen() failure (CVE-2026-72218)

    In the Linux kernel, the following vulnerability has been resolved:

    fbdev: metronomefb: fix potential memory leak in metronomefb_probe() (CVE-2026-72276)

    In the Linux kernel, the following vulnerability has been resolved:

    KVM: s390: pci: Fix GISC refcount leak on AIF enable failure (CVE-2026-72290)

    In the Linux kernel, the following vulnerability has been resolved:

    net/mlx5e: Fix HV VHCA stats zero-sized buffer allocation (CVE-2026-72343)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: nf_nat: avoid invalid nat_net pointer use on failed nf_nat_init() (CVE-2026-72419)

    In the Linux kernel, the following vulnerability has been resolved:

    md/raid1: free r1_bio when REQ_NOWAIT is set and read would block on retry (CVE-2026-72437)

    In the Linux kernel, the following vulnerability has been resolved:

    kcm: use WRITE_ONCE() when changing lower socket callbacks (CVE-2026-74262)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf: Tighten cgroup storage cookie checks for prog arrays (CVE-2026-74305)

    In the Linux kernel, the following vulnerability has been resolved:

    vmalloc: fix NULL pointer dereference in is_vm_area_hugepages() (CVE-2026-74327)

    In the Linux kernel, the following vulnerability has been resolved:

    watchdog: unregister PM notifier on watchdog unregister (CVE-2026-74329)

    In the Linux kernel, the following vulnerability has been resolved:

    gpu: host1x: Fix iommu_map_sgtable() return value check (CVE-2026-74380)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of kernel installed on the remote host is prior to 5.10.262-262.1063. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2026-129 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    net: Drop the lock in skb_may_tx_timestamp() (CVE-2026-43216)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: flowtable: strictly check for maximum number of actions (CVE-2026-43329)

    In the Linux kernel, the following vulnerability has been resolved:

    nvmet-tcp: fix race between ICReq handling and queue teardown (CVE-2026-46135)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: nf_log: validate MAC header was set before dumping it (CVE-2026-52942)

    In the Linux kernel, the following vulnerability has been resolved:

    fuse: re-lock request before replacing page cache folio

    fuse_try_move_folio() unlocks the request on entry but does notre-lock it on the success path. This means     fuse_chan_abort() can end therequest and free the fuse_io_args (eg fuse_readpages_end()) while     thesubsequent copy chain logic after fuse_try_move_folio() accesses thefuse_io_args, leading to use-after-     free issues.

    Fix this by calling lock_request() before replace_page_cache_folio().This ensures the request is locked on     the success path which willprevent the fuse_io_args from being freed while the later copying logicruns,     and also ensures that the ap->folios[i]->mapping is never nullsince ap->folios[i] will always point to the     newfolio afterreplace_page_cache_folio(). (CVE-2026-53388)

    In the Linux kernel, the following vulnerability has been resolved:

    NFSv4/flexfiles: reject zero filehandle version count (CVE-2026-53392)

    In the Linux kernel, the following vulnerability has been resolved:

    nfsd: reset write verifier on deferred writeback errors (CVE-2026-53393)

    In the Linux kernel, the following vulnerability has been resolved:

    nfsd: release layout stid on setlease failure (CVE-2026-53399)

    In the Linux kernel, the following vulnerability has been resolved:

    i2c: core: fix adapter registration race

    Adapters can be looked up based on their id using i2c_get_adapter()which takes a reference to the embedded     struct device.

    Make sure that the adapter (including its struct device) has beeninitialised before adding it to the IDR     to avoid accessing uninitialiseddata which could, for example, lead to NULL-pointer dereferences oruse-     after-free.

    Note that the i2c-dev chardev, which is registered from a bus notifier,currently uses i2c_get_adapter() so     the adapter needs to be added to theIDR before registration. (CVE-2026-53400)

    In the Linux kernel, the following vulnerability has been resolved:

    fbdev: fbcon: fix out-of-bounds read in err_out of fbcon_do_set_font()

    When fbcon_do_set_font() fails (e.g., due to a memory allocation failureinside vc_resize() under heavy     memory pressure), it jumps to the `err_out`label to roll back the console state. However, the current     rollback logicforgets to restore the `hi_font` state, leading to a severe state machinecorruption.

    Earlier in the function, `set_vc_hi_font()` might be called to change`vc->vc_hi_font_mask` and mutate the     screen buffer. If `vc_resize()`subsequently fails, the `err_out` path restores `vc_font.charcount`but     entirely skips rolling back the `vc_hi_font_mask` and the screenbuffer.

    This mismatch leaves the terminal in a desynchronized state. Because`vc_hi_font_mask` remains set, the VT     subsystem will still acceptcharacter indices greater than 255 from userspace and write them to thescreen     buffer. Subsequent rendering calls (e.g., `fbcon_putcs()`) willthen use these inflated indices to access     the reverted, 256-characterfont array, leading to a deterministic out-of-bounds read and potentialkernel     memory disclosure.

    Fix this by adding the missing rollback logic for the `hi_font` maskand screen buffer in the error path.
    (CVE-2026-53402)

    In the Linux kernel, the following vulnerability has been resolved:

    hdlc_ppp: sync per-proto timers before freeing hdlc state (CVE-2026-63803)

    In the Linux kernel, the following vulnerability has been resolved:

    KVM: Replace guest-triggerable BUG_ON() in ioeventfd datamatch with get_unaligned() (CVE-2026-63806)

    In the Linux kernel, the following vulnerability has been resolved:

    fbdev: fix use-after-free in store_modes() (CVE-2026-63826)

    In the Linux kernel, the following vulnerability has been resolved:

    net: ip_gre: require CAP_NET_ADMIN in the device netns for changelink (CVE-2026-63829)

    In the Linux kernel, the following vulnerability has been resolved:

    net: skmsg: preserve sg.copy across SG transforms (CVE-2026-63830)

    In the Linux kernel, the following vulnerability has been resolved:

    security/keys: fix missed RCU read section on lookup

    Nicholas Carlini reports that the keyring code calls assoc_array_find()in find_key_to_update() without     holding the RCU read lock, while theassoc_array_gc() code really is designed around removing the node     fromthe tree and then freeing it after an RCU grace-period.

    The regular key handling doesn't see this because holding the keyringsemaphore hides any lifetime issues,     but the persistent key handlinguses a different model.

    Instead of extending the keyring locking, just do the simple RCU lockingthat the assoc_array was designed     for. (CVE-2026-64015)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: ipset: fix race between dump and ip_set_list resize (CVE-2026-64189)

    In the Linux kernel, the following vulnerability has been resolved:

    fuse: re-lock request before returning from fuse_ref_folio() (CVE-2026-64266)

    In the Linux kernel, the following vulnerability has been resolved:

    Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count (CVE-2026-64276)

    In the Linux kernel, the following vulnerability has been resolved:

    exfat: bound uniname advance in exfat_find_dir_entry() (CVE-2026-64296)

    In the Linux kernel, the following vulnerability has been resolved:

    NFSv4: include MAY_WRITE in open permission mask for O_TRUNC (CVE-2026-64298)

    In the Linux kernel, the following vulnerability has been resolved:

    tracing: Prevent out-of-bounds read in glob matching (CVE-2026-64299)

    In the Linux kernel, the following vulnerability has been resolved:

    crypto: drbg - Fix returning success on failure in CTR_DRBG (CVE-2026-64306)

    In the Linux kernel, the following vulnerability has been resolved:

    crypto: pcrypt - restore callback for non-parallel fallback (CVE-2026-64312)

    In the Linux kernel, the following vulnerability has been resolved:

    crypto: ecc - Fix carry overflow in vli multiplication (CVE-2026-64313)

    In the Linux kernel, the following vulnerability has been resolved:

    isofs: bound Rock Ridge symlink components to the SL record (CVE-2026-64317)

    In the Linux kernel, the following vulnerability has been resolved:

    udf: validate sparing table length as an entry count, not a byte count (CVE-2026-64322)

    In the Linux kernel, the following vulnerability has been resolved:

    udf: validate VAT header length against the VAT inode size (CVE-2026-64323)

    In the Linux kernel, the following vulnerability has been resolved:

    udf: validate free block extents against the partition length (CVE-2026-64324)

    In the Linux kernel, the following vulnerability has been resolved:

    USB: ulpi: fix memory leak on registration failure (CVE-2026-64332)

    In the Linux kernel, the following vulnerability has been resolved:

    USB: serial: digi_acceleport: fix write buffer corruption (CVE-2026-64333)

    In the Linux kernel, the following vulnerability has been resolved:

    USB: serial: digi_acceleport: fix hard lockup on disconnect (CVE-2026-64334)

    In the Linux kernel, the following vulnerability has been resolved:

    USB: serial: digi_acceleport: fix broken rx after throttle (CVE-2026-64335)

    In the Linux kernel, the following vulnerability has been resolved:

    USB: legousbtower: fix use-after-free on disconnect race (CVE-2026-64340)

    In the Linux kernel, the following vulnerability has been resolved:

    USB: iowarrior: fix use-after-free on disconnect (CVE-2026-64342)

    In the Linux kernel, the following vulnerability has been resolved:

    USB: ldusb: fix use-after-free on disconnect race (CVE-2026-64343)

    In the Linux kernel, the following vulnerability has been resolved:

    USB: idmouse: fix use-after-free on disconnect race (CVE-2026-64344)

    In the Linux kernel, the following vulnerability has been resolved:

    usb: free iso schedules on failed submit (CVE-2026-64348)

    In the Linux kernel, the following vulnerability has been resolved:

    net: usb: kalmia: bound RX frame length in kalmia_rx_fixup() (CVE-2026-64351)

    In the Linux kernel, the following vulnerability has been resolved:

    nilfs2: reject CLEAN_SEGMENTS ioctl with out-of-range segment numbers (CVE-2026-64359)

    In the Linux kernel, the following vulnerability has been resolved:

    hfs/hfsplus: zero-initialize buffer in hfs_bnode_read (CVE-2026-64360)

    In the Linux kernel, the following vulnerability has been resolved:

    hfs/hfsplus: fix u32 overflow in check_and_correct_requested_length (CVE-2026-64361)

    In the Linux kernel, the following vulnerability has been resolved:

    HID: lg-g15: cancel pending work on remove to fix a use-after-free (CVE-2026-64362)

    In the Linux kernel, the following vulnerability has been resolved:

    HID: appleir: fix UAF on pending key_up_timer in remove() (CVE-2026-64363)

    In the Linux kernel, the following vulnerability has been resolved:

    HID: multitouch: fix out-of-bounds bit access on mt_io_flags (CVE-2026-64364)

    In the Linux kernel, the following vulnerability has been resolved:

    posix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path (CVE-2026-64370)

    In the Linux kernel, the following vulnerability has been resolved:

    proc: protect ptrace_may_access() with exec_update_lock (part 1) (CVE-2026-64371)

    In the Linux kernel, the following vulnerability has been resolved:

    cpufreq: pcc: fix use-after-free and double free in _OSC evaluation (CVE-2026-64372)

    In the Linux kernel, the following vulnerability has been resolved:

    cpufreq: Fix hotplug-suspend race during reboot (CVE-2026-64373)

    In the Linux kernel, the following vulnerability has been resolved:

    sched/rt: Have RT_PUSH_IPI be default off for non PREEMPT_RT (CVE-2026-64374)

    In the Linux kernel, the following vulnerability has been resolved:

    proc: protect ptrace_may_access() with exec_update_lock (FD links) (CVE-2026-64375)

    In the Linux kernel, the following vulnerability has been resolved:

    writeback: fix race between cgroup_writeback_umount() and inode_switch_wbs() (CVE-2026-64378)

    In the Linux kernel, the following vulnerability has been resolved:

    smb: client: harden POSIX SID length parsing (CVE-2026-64380)

    In the Linux kernel, the following vulnerability has been resolved:

    smb: client: Fix next buffer leak in receive_encrypted_standard() (CVE-2026-64381)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: ebtables: terminate table name before find_table_lock() (CVE-2026-64411)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: ebtables: module names must be null-terminated (CVE-2026-64412)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: ebtables: zero chainstack array (CVE-2026-64413)

    In the Linux kernel, the following vulnerability has been resolved:

    net: ipv4: bound TCP reordering sysctl writes and MTU probe sizes (CVE-2026-64422)

    In the Linux kernel, the following vulnerability has been resolved:

    ipv4: igmp: remove multicast group from hash table on device destruction (CVE-2026-64423)

    In the Linux kernel, the following vulnerability has been resolved:

    io_uring/io-wq: re-check IO_WQ_BIT_EXIT for each linked work item (CVE-2026-64425)

    In the Linux kernel, the following vulnerability has been resolved:

    audit: Fix data races of skb_queue_len() readers on audit_queue (CVE-2026-64435)

    In the Linux kernel, the following vulnerability has been resolved:

    net: af_key: initialize alg_key_len for IPComp states (CVE-2026-64436)

    In the Linux kernel, the following vulnerability has been resolved:

    smb: client: restrict implied bcc[0] exemption to responses without data area (CVE-2026-64448)

    In the Linux kernel, the following vulnerability has been resolved:

    tipc: fix out-of-bounds read in broadcast Gap ACK blocks (CVE-2026-64450)

    In the Linux kernel, the following vulnerability has been resolved:

    USB: chaoskey: Fix slab-use-after-free in chaoskey_release() (CVE-2026-64455)

    In the Linux kernel, the following vulnerability has been resolved:

    hwrng: virtio: clamp device-reported used.len at copy_data() (CVE-2026-64456)

    In the Linux kernel, the following vulnerability has been resolved:

    usb: xhci: Fix sleep in atomic context in xhci_free_streams() (CVE-2026-64465)

    In the Linux kernel, the following vulnerability has been resolved:

    vfio/pci: Release the VGA arbiter client on register_device() failure (CVE-2026-64475)

    In the Linux kernel, the following vulnerability has been resolved:

    userfaultfd: gate must_wait writability check on pte_present() (CVE-2026-64514)

    In the Linux kernel, the following vulnerability has been resolved:

    nvmet-tcp: check INIT_FAILED before nvmet_req_uninit in digest error path (CVE-2026-64534)

    In the Linux kernel, the following vulnerability has been resolved:

    ipv6: Fix null-ptr-deref in fib6_nh_mtu_change(). (CVE-2026-64538)

    In the Linux kernel, the following vulnerability has been resolved:

    usbnet: gl620a: fix out-of-bounds read in genelink_rx_fixup() (CVE-2026-64540)

    In the Linux kernel, the following vulnerability has been resolved:

    crypto: asymmetric_keys - fix OOB read in pefile_digest_pe_contents (CVE-2026-64544)

    In the Linux kernel, the following vulnerability has been resolved:

    drm/edid: fix OOB read in drm_parse_tiled_block() (CVE-2026-64546)

    In the Linux kernel, the following vulnerability has been resolved:

    net: usb: net1080: validate packet_len before pad-byte access in rx_fixup (CVE-2026-64547)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf, sockmap: reject overflowing copy + len in bpf_msg_push_data() (CVE-2026-64548)

    In the Linux kernel, the following vulnerability has been resolved:

    sctp: validate STALE_COOKIE cause length before reading staleness (CVE-2026-64551)

    In the Linux kernel, the following vulnerability has been resolved:

    net: psample: fix info leak in PSAMPLE_ATTR_DATA (CVE-2026-64553)

    In the Linux kernel, the following vulnerability has been resolved:

    posix-cpu-timers: Prevent UAF caused by non-leader exec() race (CVE-2026-64560)

    In the Linux kernel, the following vulnerability has been resolved:

    KVM: x86: Check for invalid/obsolete root *after* making MMU pages available

    Check for a stale page fault, i.e. for an invalid and/or obsolete root,after making MMU pages available     for the shadow MMU.  If reclaiming shadowpages zaps an in-use root, i.e. marks it invalid, then KVM will     attempt tomap memory into an invalid root.  On its own, populating an invalid root isfine, but because     child shadow pages inherit their parent's role, anychildren created during the map/fetch will be created     as invalid pages,thus violating KVM's invariant that invalid pages are never on the list ofactive MMU     pages.

    Note, the underlying flaw has existed since KVM first started trackinginvalid roots in 2008 (commit     2e53d63acba7, KVM: MMU: ignore zapped rootpagetables), but the true badness only came along in 2020     (Linux 5.9)with the invariant that invalid shadow pages can't be on the list ofactive pages.

    Note #2, inheriting role.invalid when creating child shadow pages is alsofar from ideal; that flaw will be     addressed separately. (CVE-2026-64561)

    In the Linux kernel, the following vulnerability has been resolved:

    btrfs: do not trim a device which is not writeable (CVE-2026-64593)

    In the Linux kernel, the following vulnerability has been resolved:

    KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode (CVE-2026-64604)

    In the Linux kernel, the following vulnerability has been resolved:

    HID: wacom: stop hardware after post-start probe failures (CVE-2026-68091)

    In the Linux kernel, the following vulnerability has been resolved:

    lockd: Plug nlm_file refcount leak on cached nlm_do_fopen() failure (CVE-2026-72218)

    In the Linux kernel, the following vulnerability has been resolved:

    kcm: use WRITE_ONCE() when changing lower socket callbacks (CVE-2026-74262)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3602-1 advisory.

    The SUSE Linux Enterprise 15 SP6 kernel was updated to fix various security issues:

    The following security issues were fixed:

    - CVE-2026-46056: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (bsc#1267435).
    - CVE-2026-46193: xfrm: ah: account for ESN high bits in async callbacks (bsc#1267656).
    - CVE-2026-46324: netfilter: nf_tables: Introduce functions freeing nft_hook objects (bsc#1267995).
    - CVE-2026-52967: smb/client: fix possible infinite loop and oob read in symlink_data() (bsc#1269181).
    - CVE-2026-52986: netfilter: nf_conntrack_sip: don't use simple_strtoul (bsc#1269289).
    - CVE-2026-53050: quota: Fix race of dquot_scan_active() with quota deactivation (bsc#1269188).
    - CVE-2026-53129: fs/mbcache: cancel shrink work before destroying the cache (bsc#1269633).
    - CVE-2026-53131: netfilter: require Ethernet MAC header before using eth_hdr() (bsc#1269773).
    - CVE-2026-53224: sctp: validate embedded INIT chunk and address list lengths in cookie (bsc#1269997).
    - CVE-2026-53246: sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing (bsc#1269988).
    - CVE-2026-53250: xsk: cache csum_start/csum_offset to fix TOCTOU in xsk_skb_metadata() (bsc#1269808).
    - CVE-2026-53262: l2tp: pppol2tp: hold reference to session in pppol2tp_ioctl() (bsc#1270000).
    - CVE-2026-53267: netfilter: nft_ct: bail out on template ct in get eval (bsc#1269577).
    - CVE-2026-53354: arm64: errata: Mitigate TLBI errata on various Arm CPUs (bsc#1270230).
    - CVE-2026-53375: drm/amdgpu/vce: Prevent partial address patches (bsc#1271899).
    - CVE-2026-53388: fuse: re-lock request before replacing page cache folio (bsc#1271825).
    - CVE-2026-53391: NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr (bsc#1271904).
    - CVE-2026-53402: fbdev: fbcon: fix out-of-bounds read in err_out of (bsc#1271908).
    - CVE-2026-63794: KVM: SVM: Fix page overflow in sev_dbg_crypt() for ENCRYPT path (bsc#1271964).
    - CVE-2026-63802: blk-cgroup: fix UAF in __blkcg_rstat_flush() (bsc#1272282).
    - CVE-2026-63806: KVM: Replace guest-triggerable BUG_ON() in ioeventfd datamatch with get_unaligned()     (bsc#1272268).
    - CVE-2026-63807: KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level     (bsc#1272263).
    - CVE-2026-63824: KEYS: fix overflow in keyctl_pkey_params_get_2() (bsc#1272180).
    - CVE-2026-63826: fbdev: fix use-after-free in store_modes() (bsc#1272183).
    - CVE-2026-63829: net: ip_gre: require CAP_NET_ADMIN in the device netns for changelink (bsc#1272176).
    - CVE-2026-63884: drm/i915: Fix potential UAF in TTM object purge (bsc#1272573).
    - CVE-2026-63893: thunderbolt: property: Reject u32 wrap in tb_property_entry_valid() (bsc#1272607).
    - CVE-2026-63912: xfrm: esp: restore combined single-frag length gate (bsc#1272836).
    - CVE-2026-63917: ip6: vti: Use ip6_tnl.net in vti6_changelink() (bsc#1272904).
    - CVE-2026-63919: xfrm: input: hold netns during deferred transport reinjection (bsc#1272907).
    - CVE-2026-63921: ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate() (bsc#1272918).
    - CVE-2026-63922,CVE-2026-63924: ipv6: exthdrs: refresh nh after handling HAO option (bsc#1272855).
    - CVE-2026-63946: Bluetooth: ISO: fix UAF in iso_recv_frame (bsc#1272665).
    - CVE-2026-63952: memfd: deny writeable mappings when implying SEAL_WRITE (bsc#1272468).
    - CVE-2026-63968: ipv6: fix possible infinite loop in fib6_select_path() (bsc#1272466).
    - CVE-2026-63971: sctp: fix race between sctp_wait_for_connect and peeloff (bsc#1272678).
    - CVE-2026-63975: Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp (bsc#1272694).
    - CVE-2026-63984: ipv6: rpl: fix hdrlen overflow in ipv6_rpl_srh_decompress() (bsc#1272865).
    - CVE-2026-63994: tunnels: load network headers after skb_cow() in iptunnel_pmtud_build_icmp()     (bsc#1273035).
    - CVE-2026-64106: KVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits     (bsc#1272242).
    - CVE-2026-64189: netfilter: ipset: fix race between dump and ip_set_list resize (bsc#1272207).
    - CVE-2026-64560: posix-cpu-timers: Prevent UAF caused by non-leader exec() race (bsc#1273004).
    - CVE-2026-64561: KVM: x86: Check for invalid/obsolete root *after* making MMU pages available     (bsc#1273231).
    - CVE-2026-64564: sctp: don't free the ASCONF's own transport in DEL-IP processing (bsc#1274072).
    - CVE-2026-64600: xfs: resample the data fork mapping after cycling ILOCK (bsc#1271526).

    The following non security issues were fixed:

    - Drivers: hv: vmbus: Set DMA coherent mask for VMBus devices (git-fixes).
    - hrtimers: Introduce hrtimer_setup() to replace hrtimer_init() (bsc#1271912).
    - ice: don't check has_ready_bitmap in E810 functions (bsc#1269981).
    - ice: factor out ice_ptp_rebuild_owner() (bsc#1269981).
    - ice: fix PTP Call Trace during PTP release (bsc#1269981).
    - ice: Fix PTP NULL pointer dereference during VSI rebuild (bsc#1269981).
    - ice: introduce PTP state machine (bsc#1269981).
    - ice: pass reset type to PTP reset functions (bsc#1269981).
    - ice: rename ice_ptp_tx_cfg_intr (bsc#1269981).
    - ice: rename verify_cached to has_ready_bitmap (bsc#1269981).
    - ice: stop destroying and reinitalizing Tx tracker during reset (bsc#1269981).
    - KVM: SVM: Mark VMCB_NPT as dirty on nested VMRUN (git-fixes).
    - KVM: SVM: Mark VMCB_PERM_MAP as dirty on nested VMRUN (git-fixes).
    - KVM: x86/mmu: Fix use-after-free on vendor module reload (git-fixes).
    - KVM: x86/mmu: Preserve nested TDP shadow page tables if they are used as roots (git-fixes).
    - KVM: x86/xen: Fix cleanup logic in emulation of Xen schedop poll hypercalls (git-fixes).
    - KVM: x86: Fix SRCU list traversal in kvm_fire_mask_notifiers() (git-fixes).
    - KVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer (git-fixes).
    - KVM: x86: hyper-v: Bound the bank index when querying sparse banks (git-fixes).
    - KVM: x86: hyper-v: Validate all GVAs during PV TLB flush (git-fixes).
    - mkspec-dtb: Skip missing DTBs.
    - net/sched: cls_api: Handle TC_ACT_CONSUMED in tcf_qevent_handle (bsc#1271866).
    - net: mana: Add Interrupt Moderation support (bsc#1271368).
    - net: mana: Return error code from mana_create_rxq() (git-fixes).
    - net: mana: Validate the packet length reported by the NIC (git-fixes).
    - pkspec-dtb: Fix dtb-al rename.
    - posix-cpu-timers: Cleanup the firing logic (bsc#1271912).
    - posix-cpu-timers: Correctly update timer status in posix_cpu_timer_del() (bsc#1271912).
    - posix-cpu-timers: Do not arm SIGEV_NONE timers (bsc#1271912).
    - posix-cpu-timers: Handle interval timers correctly in timer_get() (bsc#1271912).
    - posix-cpu-timers: Handle SIGEV_NONE timers correctly in timer_get() (bsc#1271912).
    - posix-cpu-timers: Handle SIGEV_NONE timers correctly in timer_set() (bsc#1271912).
    - posix-cpu-timers: Make k_itimer::it_active consistent (bsc#1271912).
    - posix-cpu-timers: Remove incorrect comment in posix_cpu_timer_set() (bsc#1271912).
    - posix-cpu-timers: Replace old expiry retrieval in posix_cpu_timer_set() (bsc#1271912).
    - posix-cpu-timers: Simplify posix_cpu_timer_set() (bsc#1271912).
    - posix-cpu-timers: Split up posix_cpu_timer_get() (bsc#1271912).
    - posix-cpu-timers: Use @now instead of @val for clarity (bsc#1271912).
    - posix-timers: Add proper state tracking (bsc#1271912).
    - posix-timers: Avoid direct access to hrtimer clockbase (bsc#1271912).
    - posix-timers: Clarify posix_timer_fn() comments (bsc#1271912).
    - posix-timers: Clear overrun in common_timer_set() (bsc#1271912).
    - posix-timers: Consolidate signal queueing (bsc#1271912).
    - posix-timers: Consolidate timer setup (bsc#1271912).
    - posix-timers: Cure si_sys_private race (bsc#1271912).
    - posix-timers: Document common_clock_get() correctly (bsc#1271912).
    - posix-timers: Expand timer_arm() callbacks with a boolean return value (bsc#1271912).
    - posix-timers: Polish coding style in a few places (bsc#1271912).
    - posix-timers: Retrieve interval in common timer_settime() code (bsc#1271912).
    - RDMA/mana_ib: initialize err for empty send WR lists (git-fixes).
    - sctp: validate embedded address parameter length (git-fixes).
    - time: Switch to hrtimer_setup() (bsc#1271912).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3593-1 advisory.

    The SUSE Linux Enterprise 15 SP4 kernel was updated to fix various security issues:

    The following security issues were fixed:

    - CVE-2022-4994: KVM: x86: wean fast IN from emulator_pio_in (bsc#1273097).
    - CVE-2023-53995: net: ipv4: fix one memleak in __inet_del_ifa() (bsc#1255616).
    - CVE-2026-46052: ceph: only d_add() negative dentries when they are unhashed (bsc#1267494).
    - CVE-2026-46056: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (bsc#1267435).
    - CVE-2026-46145: RDMA/mana: Validate rx_hash_key_len (bsc#1267715).
    - CVE-2026-46193: xfrm: ah: account for ESN high bits in async callbacks (bsc#1267656).
    - CVE-2026-52956: libceph: Fix potential out-of-bounds access in __ceph_x_decrypt() (bsc#1269172).
    - CVE-2026-52958: libceph: Fix potential out-of-bounds access in osdmap_decode() (bsc#1269174).
    - CVE-2026-52967: smb/client: fix possible infinite loop and oob read in symlink_data() (bsc#1269181).
    - CVE-2026-52986: netfilter: nf_conntrack_sip: don't use simple_strtoul (bsc#1269289).
    - CVE-2026-53050: quota: Fix race of dquot_scan_active() with quota deactivation (bsc#1269188).
    - CVE-2026-53131: netfilter: require Ethernet MAC header before using eth_hdr() (bsc#1269773).
    - CVE-2026-53196: USB: serial: io_ti: fix heap overflow in get_manuf_info() (bsc#1269986).
    - CVE-2026-53224: sctp: validate embedded INIT chunk and address list lengths in cookie (bsc#1269997).
    - CVE-2026-53246: sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing (bsc#1269988).
    - CVE-2026-53256: Bluetooth: RFCOMM: hold listener socket in rfcomm_connect_ind() (bsc#1269993).
    - CVE-2026-53260: preempt: Provide preempt_[dis|en]able_nested() (bsc#1269731).
    - CVE-2026-53267: netfilter: nft_ct: bail out on template ct in get eval (bsc#1269577).
    - CVE-2026-53354: arm64: errata: Mitigate TLBI errata on various Arm CPUs (bsc#1270230).
    - CVE-2026-53357: Bluetooth: fix UAF in l2cap_sock_cleanup_listen() vs l2cap_conn_del() (bsc#1270257).
    - CVE-2026-53375: drm/amdgpu/vce: Prevent partial address patches (bsc#1271899).
    - CVE-2026-53388: fuse: re-lock request before replacing page cache folio (bsc#1271825).
    - CVE-2026-53391: NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr (bsc#1271904).
    - CVE-2026-53402: fbdev: fbcon: fix out-of-bounds read in err_out of (bsc#1271908).
    - CVE-2026-63794: KVM: SVM: Fix page overflow in sev_dbg_crypt() for ENCRYPT path (bsc#1271964).
    - CVE-2026-63806: KVM: Replace guest-triggerable BUG_ON() in ioeventfd datamatch with get_unaligned()     (bsc#1272268).
    - CVE-2026-63807: KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level     (bsc#1272263).
    - CVE-2026-63824: KEYS: fix overflow in keyctl_pkey_params_get_2() (bsc#1272180).
    - CVE-2026-63829: net: ip_gre: require CAP_NET_ADMIN in the device netns for changelink (bsc#1272176).
    - CVE-2026-63893: thunderbolt: property: Reject u32 wrap in tb_property_entry_valid() (bsc#1272607).
    - CVE-2026-63917: ip6: vti: Use ip6_tnl.net in vti6_changelink() (bsc#1272904).
    - CVE-2026-63919: xfrm: input: hold netns during deferred transport reinjection (bsc#1272907).
    - CVE-2026-63921: ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate() (bsc#1272918).
    - CVE-2026-63922,CVE-2026-63924: ipv6: exthdrs: recompute network header pointer once (bsc#1272855).
    - CVE-2026-63971: sctp: fix race between sctp_wait_for_connect and peeloff (bsc#1272678).
    - CVE-2026-63975: Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp (bsc#1272694).
    - CVE-2026-63984: ipv6: rpl: fix hdrlen overflow in ipv6_rpl_srh_decompress() (bsc#1272865).
    - CVE-2026-63994: tunnels: load network headers after skb_cow() in iptunnel_pmtud_build_icmp()     (bsc#1273035).
    - CVE-2026-64106: KVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits     (bsc#1272242).
    - CVE-2026-64189: netfilter: ipset: fix race between dump and ip_set_list resize (bsc#1272207).
    - CVE-2026-64561: KVM: x86: Check for invalid/obsolete root *after* making MMU pages available     (bsc#1273231).
    - CVE-2026-64560: posix-cpu-timers: Prevent UAF caused by non-leader exec() race (bsc#1273004).
    - CVE-2026-64564: sctp: don't free the ASCONF's own transport in DEL-IP processing (bsc#1274072).
    - CVE-2026-64600: xfs: resample the data fork mapping after cycling ILOCK (bsc#1271526).

    The following non security issues were fixed:

    - hrtimers: Introduce hrtimer_setup() to replace hrtimer_init() (bsc#1271912).
    - mkspec-dtb: Skip missing DTBs.
    - pkspec-dtb: Fix dtb-al rename.
    - posix-cpu-timers: Cleanup the firing logic (bsc#1271912).
    - posix-cpu-timers: Correctly update timer status in posix_cpu_timer_del() (bsc#1271912).
    - posix-cpu-timers: Do not arm SIGEV_NONE timers (bsc#1271912).
    - posix-cpu-timers: Handle interval timers correctly in timer_get() (bsc#1271912).
    - posix-cpu-timers: Handle SIGEV_NONE timers correctly in timer_get() (bsc#1271912).
    - posix-cpu-timers: Handle SIGEV_NONE timers correctly in timer_set() (bsc#1271912).
    - posix-cpu-timers: Make k_itimer::it_active consistent (bsc#1271912).
    - posix-cpu-timers: Remove incorrect comment in posix_cpu_timer_set() (bsc#1271912).
    - posix-cpu-timers: Replace old expiry retrieval in posix_cpu_timer_set() (bsc#1271912).
    - posix-cpu-timers: Simplify posix_cpu_timer_set() (bsc#1271912).
    - posix-cpu-timers: Split up posix_cpu_timer_get() (bsc#1271912).
    - posix-cpu-timers: Use @now instead of @val for clarity (bsc#1271912).
    - posix-timers: Add proper state tracking (bsc#1271912).
    - posix-timers: Avoid direct access to hrtimer clockbase (bsc#1271912).
    - posix-timers: Clarify posix_timer_fn() comments (bsc#1271912).
    - posix-timers: Clear overrun in common_timer_set() (bsc#1271912).
    - posix-timers: Consolidate signal queueing (bsc#1271912).
    - posix-timers: Consolidate timer setup (bsc#1271912).
    - posix-timers: Cure si_sys_private race (bsc#1271912).
    - posix-timers: Document common_clock_get() correctly (bsc#1271912).
    - posix-timers: Expand timer_arm() callbacks with a boolean return value (bsc#1271912).
    - posix-timers: Polish coding style in a few places (bsc#1271912).
    - posix-timers: Retrieve interval in common timer_settime() code (bsc#1271912).
    - sctp: validate embedded address parameter length (git-fixes).
    - time: Switch to hrtimer_setup() (bsc#1271912).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An update of the linux package has been released.

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4724 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4724-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                        Ben Hutchings     August 07, 2026                               https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : linux-6.12     Version        : 6.12.100-1~deb12u1     CVE ID         : CVE-2025-21807 CVE-2026-45944 CVE-2026-46093 CVE-2026-53005                      CVE-2026-53027 CVE-2026-53226 CVE-2026-53260 CVE-2026-53365                      CVE-2026-53392 CVE-2026-53399 CVE-2026-53402 CVE-2026-63815                      CVE-2026-63816 CVE-2026-63818 CVE-2026-63970 CVE-2026-64187                      CVE-2026-64189 CVE-2026-64192 CVE-2026-64206 CVE-2026-64227                      CVE-2026-64241 CVE-2026-64256 CVE-2026-64265 CVE-2026-64266                      CVE-2026-64268 CVE-2026-64269 CVE-2026-64270 CVE-2026-64271                      CVE-2026-64272 CVE-2026-64273 CVE-2026-64274 CVE-2026-64275                      CVE-2026-64276 CVE-2026-64277 CVE-2026-64279 CVE-2026-64284                      CVE-2026-64286 CVE-2026-64287 CVE-2026-64289 CVE-2026-64294                      CVE-2026-64296 CVE-2026-64297 CVE-2026-64298 CVE-2026-64299                      CVE-2026-64301 CVE-2026-64303 CVE-2026-64304 CVE-2026-64305                      CVE-2026-64306 CVE-2026-64307 CVE-2026-64308 CVE-2026-64309                      CVE-2026-64310 CVE-2026-64312 CVE-2026-64313 CVE-2026-64315                      CVE-2026-64316 CVE-2026-64317 CVE-2026-64318 CVE-2026-64319                      CVE-2026-64320 CVE-2026-64321 CVE-2026-64322 CVE-2026-64323                      CVE-2026-64324 CVE-2026-64326 CVE-2026-64327 CVE-2026-64328                      CVE-2026-64329 CVE-2026-64330 CVE-2026-64331 CVE-2026-64332                      CVE-2026-64333 CVE-2026-64334 CVE-2026-64335 CVE-2026-64336                      CVE-2026-64337 CVE-2026-64338 CVE-2026-64340 CVE-2026-64341                      CVE-2026-64342 CVE-2026-64343 CVE-2026-64344 CVE-2026-64345                      CVE-2026-64346 CVE-2026-64347 CVE-2026-64348 CVE-2026-64350                      CVE-2026-64351 CVE-2026-64352 CVE-2026-64354 CVE-2026-64355                      CVE-2026-64357 CVE-2026-64358 CVE-2026-64359 CVE-2026-64360                      CVE-2026-64361 CVE-2026-64362 CVE-2026-64363 CVE-2026-64364                      CVE-2026-64365 CVE-2026-64367 CVE-2026-64368 CVE-2026-64369                      CVE-2026-64370 CVE-2026-64371 CVE-2026-64372 CVE-2026-64373                      CVE-2026-64374 CVE-2026-64375 CVE-2026-64376 CVE-2026-64377                      CVE-2026-64378 CVE-2026-64379 CVE-2026-64380 CVE-2026-64381                      CVE-2026-64382 CVE-2026-64383 CVE-2026-64384 CVE-2026-64385                      CVE-2026-64386 CVE-2026-64387 CVE-2026-64390 CVE-2026-64391                      CVE-2026-64392 CVE-2026-64393 CVE-2026-64394 CVE-2026-64395                      CVE-2026-64396 CVE-2026-64397 CVE-2026-64398 CVE-2026-64399                      CVE-2026-64401 CVE-2026-64402 CVE-2026-64403 CVE-2026-64404                      CVE-2026-64405 CVE-2026-64406 CVE-2026-64407 CVE-2026-64408                      CVE-2026-64409 CVE-2026-64411 CVE-2026-64412 CVE-2026-64413                      CVE-2026-64414 CVE-2026-64415 CVE-2026-64416 CVE-2026-64417                      CVE-2026-64418 CVE-2026-64419 CVE-2026-64420 CVE-2026-64421                      CVE-2026-64422 CVE-2026-64423 CVE-2026-64424 CVE-2026-64425                      CVE-2026-64428 CVE-2026-64429 CVE-2026-64430 CVE-2026-64432                      CVE-2026-64433 CVE-2026-64434 CVE-2026-64435 CVE-2026-64436                      CVE-2026-64437 CVE-2026-64438 CVE-2026-64440 CVE-2026-64441                      CVE-2026-64442 CVE-2026-64443 CVE-2026-64444 CVE-2026-64445                      CVE-2026-64446 CVE-2026-64448 CVE-2026-64449 CVE-2026-64450                      CVE-2026-64452 CVE-2026-64454 CVE-2026-64455 CVE-2026-64456                      CVE-2026-64457 CVE-2026-64458 CVE-2026-64461 CVE-2026-64462                      CVE-2026-64463 CVE-2026-64465 CVE-2026-64468 CVE-2026-64469                      CVE-2026-64470 CVE-2026-64471 CVE-2026-64472 CVE-2026-64473                      CVE-2026-64474 CVE-2026-64475 CVE-2026-64476 CVE-2026-64477                      CVE-2026-64478 CVE-2026-64479 CVE-2026-64480 CVE-2026-64481                      CVE-2026-64482 CVE-2026-64483 CVE-2026-64484 CVE-2026-64486                      CVE-2026-64487 CVE-2026-64488 CVE-2026-64489 CVE-2026-64490                      CVE-2026-64493 CVE-2026-64494 CVE-2026-64495 CVE-2026-64496                      CVE-2026-64497 CVE-2026-64499 CVE-2026-64500 CVE-2026-64503                      CVE-2026-64504 CVE-2026-64505 CVE-2026-64507 CVE-2026-64508                      CVE-2026-64509 CVE-2026-64510 CVE-2026-64511 CVE-2026-64512                      CVE-2026-64514 CVE-2026-64530 CVE-2026-64531 CVE-2026-64532                      CVE-2026-64533 CVE-2026-64534 CVE-2026-64535 CVE-2026-64536                      CVE-2026-64537 CVE-2026-64538 CVE-2026-64539 CVE-2026-64540                      CVE-2026-64541 CVE-2026-64542 CVE-2026-64543 CVE-2026-64544                      CVE-2026-64545 CVE-2026-64546 CVE-2026-64547 CVE-2026-64548                      CVE-2026-64549 CVE-2026-64550 CVE-2026-64551 CVE-2026-64552                      CVE-2026-64553 CVE-2026-64554 CVE-2026-64555 CVE-2026-64556                      CVE-2026-64557 CVE-2026-64558 CVE-2026-64559 CVE-2026-64560                      CVE-2026-64582 CVE-2026-64585 CVE-2026-64589 CVE-2026-64590                      CVE-2026-64592 CVE-2026-64593 CVE-2026-64594 CVE-2026-64597                      CVE-2026-64598 CVE-2026-64599 CVE-2026-64600 CVE-2026-64602                      CVE-2026-64603 CVE-2026-64604     Debian Bug     : 1130336 1140651

    Linux 6.12 has been packaged for Debian 12 bookworm as linux-6.12.
    This provides a supported upgrade path for systems that currently use     kernel packages from the bookworm-backports suite.

    There is no need to upgrade systems using Linux 6.1, as that kernel     version will also continue to be supported in the LTS period.

    The apt full-upgrade command will *not* automatically install the     updated kernel packages.  You should explicitly install one of the     following metapackages first, as appropriate for your system:

        linux-image-6.12-amd64         linux-image-6.12-arm64         linux-image-6.12-arm64-16k         linux-image-6.12-armmp         linux-image-6.12-armmp-lpae         linux-image-6.12-cloud-amd64         linux-image-6.12-cloud-arm64         linux-image-6.12-powerpc64le         linux-image-6.12-powerpc64le-64k         linux-image-6.12-rt-amd64         linux-image-6.12-rt-arm64         linux-image-6.12-rt-armmp

    For example, if the command uname -r currently shows     6.12.95+deb12-amd64, you should install linux-image-6.12-amd64.

    This backport does not include the following binary packages:

        bpftool hyperv-daemons intel-sdsi libcpupower-dev libcpupower1         linux-cpupower linux-libc-dev linux-perf rtla usbip

    Older versions of most of those are built from the linux source     package in Debian 12.

    Several vulnerabilities have been discovered in the Linux kernel that     may lead to a privilege escalation, denial of service or information     leaks.

    For Debian 12 bookworm, these problems have been fixed in version     6.12.100-1~deb12u1.  This update also fixes several bugs reported to     Debian.  It additionally includes many more bug fixes from stable     updates 6.12.96-6.12.100.

    We recommend that you upgrade your linux-6.12 packages.

    For the detailed security status of linux-6.12 please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/linux-6.12

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4723 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4723-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/               Emilio Pozuelo Monfort     August 07, 2026                               https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : linux-6.1     Version        : 6.1.180-1~deb11u1     CVE ID         : CVE-2024-36013 CVE-2025-40196 CVE-2026-31610 CVE-2026-43216                      CVE-2026-46135 CVE-2026-53332 CVE-2026-53392 CVE-2026-53393                      CVE-2026-53399 CVE-2026-53400 CVE-2026-53402 CVE-2026-63797                      CVE-2026-63806 CVE-2026-63810 CVE-2026-63815 CVE-2026-63818                      CVE-2026-63829 CVE-2026-64187 CVE-2026-64189 CVE-2026-64206                      CVE-2026-64248 CVE-2026-64250 CVE-2026-64266 CVE-2026-64268                      CVE-2026-64269 CVE-2026-64271 CVE-2026-64273 CVE-2026-64274                      CVE-2026-64275 CVE-2026-64276 CVE-2026-64277 CVE-2026-64279                      CVE-2026-64296 CVE-2026-64297 CVE-2026-64298 CVE-2026-64299                      CVE-2026-64301 CVE-2026-64303 CVE-2026-64304 CVE-2026-64306                      CVE-2026-64312 CVE-2026-64313 CVE-2026-64315 CVE-2026-64316                      CVE-2026-64317 CVE-2026-64318 CVE-2026-64322 CVE-2026-64323                      CVE-2026-64324 CVE-2026-64329 CVE-2026-64330 CVE-2026-64331                      CVE-2026-64332 CVE-2026-64333 CVE-2026-64334 CVE-2026-64335                      CVE-2026-64336 CVE-2026-64337 CVE-2026-64338 CVE-2026-64340                      CVE-2026-64342 CVE-2026-64343 CVE-2026-64344 CVE-2026-64346                      CVE-2026-64347 CVE-2026-64350 CVE-2026-64351 CVE-2026-64352                      CVE-2026-64355 CVE-2026-64359 CVE-2026-64360 CVE-2026-64361                      CVE-2026-64362 CVE-2026-64363 CVE-2026-64364 CVE-2026-64365                      CVE-2026-64370 CVE-2026-64371 CVE-2026-64372 CVE-2026-64373                      CVE-2026-64374 CVE-2026-64375 CVE-2026-64376 CVE-2026-64378                      CVE-2026-64379 CVE-2026-64380 CVE-2026-64381 CVE-2026-64390                      CVE-2026-64393 CVE-2026-64394 CVE-2026-64395 CVE-2026-64396                      CVE-2026-64397 CVE-2026-64398 CVE-2026-64399 CVE-2026-64401                      CVE-2026-64403 CVE-2026-64406 CVE-2026-64408 CVE-2026-64409                      CVE-2026-64411 CVE-2026-64412 CVE-2026-64413 CVE-2026-64417                      CVE-2026-64419 CVE-2026-64420 CVE-2026-64422 CVE-2026-64423                      CVE-2026-64425 CVE-2026-64428 CVE-2026-64429 CVE-2026-64430                      CVE-2026-64432 CVE-2026-64435 CVE-2026-64436 CVE-2026-64437                      CVE-2026-64438 CVE-2026-64440 CVE-2026-64441 CVE-2026-64442                      CVE-2026-64443 CVE-2026-64444 CVE-2026-64445 CVE-2026-64446                      CVE-2026-64448 CVE-2026-64449 CVE-2026-64450 CVE-2026-64452                      CVE-2026-64454 CVE-2026-64455 CVE-2026-64456 CVE-2026-64458                      CVE-2026-64461 CVE-2026-64462 CVE-2026-64465 CVE-2026-64468                      CVE-2026-64469 CVE-2026-64470 CVE-2026-64471 CVE-2026-64472                      CVE-2026-64475 CVE-2026-64476 CVE-2026-64478 CVE-2026-64480                      CVE-2026-64482 CVE-2026-64483 CVE-2026-64484 CVE-2026-64486                      CVE-2026-64487 CVE-2026-64488 CVE-2026-64489 CVE-2026-64494                      CVE-2026-64495 CVE-2026-64496 CVE-2026-64497 CVE-2026-64500                      CVE-2026-64503 CVE-2026-64504 CVE-2026-64505 CVE-2026-64510                      CVE-2026-64512 CVE-2026-64514 CVE-2026-64530 CVE-2026-64531                      CVE-2026-64532 CVE-2026-64533 CVE-2026-64534 CVE-2026-64535                      CVE-2026-64536 CVE-2026-64537 CVE-2026-64538 CVE-2026-64539                      CVE-2026-64540 CVE-2026-64541 CVE-2026-64544 CVE-2026-64545                      CVE-2026-64546 CVE-2026-64547 CVE-2026-64548 CVE-2026-64549                      CVE-2026-64550 CVE-2026-64551 CVE-2026-64552 CVE-2026-64553                      CVE-2026-64554 CVE-2026-64557 CVE-2026-64560 CVE-2026-64600

    Several vulnerabilities have been discovered in the Linux kernel that     may lead to a privilege escalation, denial of service or information     leaks.

    For Debian 11 bullseye, these problems have been fixed in version     6.1.180-1~deb11u1. This version additionally includes many more bug fixes     from stable update 6.1.178-6.1.180.

    We recommend that you upgrade your linux-6.1 packages.

    For the detailed security status of linux-6.1 please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/linux-6.1

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4720 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4720-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                        Ben Hutchings     August 05, 2026                               https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : linux     Version        : 6.1.180-1     CVE ID         : CVE-2024-36013 CVE-2025-40196 CVE-2026-31610 CVE-2026-43216                      CVE-2026-46135 CVE-2026-53332 CVE-2026-53392 CVE-2026-53393                      CVE-2026-53399 CVE-2026-53400 CVE-2026-53402 CVE-2026-63797                      CVE-2026-63806 CVE-2026-63810 CVE-2026-63815 CVE-2026-63818                      CVE-2026-63829 CVE-2026-64187 CVE-2026-64189 CVE-2026-64206                      CVE-2026-64248 CVE-2026-64250 CVE-2026-64266 CVE-2026-64268                      CVE-2026-64269 CVE-2026-64271 CVE-2026-64273 CVE-2026-64274                      CVE-2026-64275 CVE-2026-64276 CVE-2026-64277 CVE-2026-64279                      CVE-2026-64296 CVE-2026-64297 CVE-2026-64298 CVE-2026-64299                      CVE-2026-64301 CVE-2026-64303 CVE-2026-64304 CVE-2026-64306                      CVE-2026-64312 CVE-2026-64313 CVE-2026-64315 CVE-2026-64316                      CVE-2026-64317 CVE-2026-64318 CVE-2026-64322 CVE-2026-64323                      CVE-2026-64324 CVE-2026-64329 CVE-2026-64330 CVE-2026-64331                      CVE-2026-64332 CVE-2026-64333 CVE-2026-64334 CVE-2026-64335                      CVE-2026-64336 CVE-2026-64337 CVE-2026-64338 CVE-2026-64340                      CVE-2026-64342 CVE-2026-64343 CVE-2026-64344 CVE-2026-64346                      CVE-2026-64347 CVE-2026-64350 CVE-2026-64351 CVE-2026-64352                      CVE-2026-64355 CVE-2026-64359 CVE-2026-64360 CVE-2026-64361                      CVE-2026-64362 CVE-2026-64363 CVE-2026-64364 CVE-2026-64365                      CVE-2026-64370 CVE-2026-64371 CVE-2026-64372 CVE-2026-64373                      CVE-2026-64374 CVE-2026-64375 CVE-2026-64376 CVE-2026-64378                      CVE-2026-64379 CVE-2026-64380 CVE-2026-64381 CVE-2026-64390                      CVE-2026-64393 CVE-2026-64394 CVE-2026-64395 CVE-2026-64396                      CVE-2026-64397 CVE-2026-64398 CVE-2026-64399 CVE-2026-64401                      CVE-2026-64403 CVE-2026-64406 CVE-2026-64408 CVE-2026-64409                      CVE-2026-64411 CVE-2026-64412 CVE-2026-64413 CVE-2026-64417                      CVE-2026-64419 CVE-2026-64420 CVE-2026-64422 CVE-2026-64423                      CVE-2026-64425 CVE-2026-64428 CVE-2026-64429 CVE-2026-64430                      CVE-2026-64432 CVE-2026-64435 CVE-2026-64436 CVE-2026-64437                      CVE-2026-64438 CVE-2026-64440 CVE-2026-64441 CVE-2026-64442                      CVE-2026-64443 CVE-2026-64444 CVE-2026-64445 CVE-2026-64446                      CVE-2026-64448 CVE-2026-64449 CVE-2026-64450 CVE-2026-64452                      CVE-2026-64454 CVE-2026-64455 CVE-2026-64456 CVE-2026-64458                      CVE-2026-64461 CVE-2026-64462 CVE-2026-64465 CVE-2026-64468                      CVE-2026-64469 CVE-2026-64470 CVE-2026-64471 CVE-2026-64472                      CVE-2026-64475 CVE-2026-64476 CVE-2026-64478 CVE-2026-64480                      CVE-2026-64482 CVE-2026-64483 CVE-2026-64484 CVE-2026-64486                      CVE-2026-64487 CVE-2026-64488 CVE-2026-64489 CVE-2026-64494                      CVE-2026-64495 CVE-2026-64496 CVE-2026-64497 CVE-2026-64500                      CVE-2026-64503 CVE-2026-64504 CVE-2026-64505 CVE-2026-64510                      CVE-2026-64512 CVE-2026-64514 CVE-2026-64530 CVE-2026-64531                      CVE-2026-64532 CVE-2026-64533 CVE-2026-64534 CVE-2026-64535                      CVE-2026-64536 CVE-2026-64537 CVE-2026-64538 CVE-2026-64539                      CVE-2026-64540 CVE-2026-64541 CVE-2026-64544 CVE-2026-64545                      CVE-2026-64546 CVE-2026-64547 CVE-2026-64548 CVE-2026-64549                      CVE-2026-64550 CVE-2026-64551 CVE-2026-64552 CVE-2026-64553                      CVE-2026-64554 CVE-2026-64557 CVE-2026-64560 CVE-2026-64600

    Several vulnerabilities have been discovered in the Linux kernel that     may lead to a privilege escalation, denial of service or information     leaks.

    For Debian 12 bookworm, these problems have been fixed in version     6.1.180-1.  This version additionally includes many more bug fixes     from stable update 6.1.178-6.1.180.

    We recommend that you upgrade your linux packages.

    For the detailed security status of linux please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/linux

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4717 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4717-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/               Emilio Pozuelo Monfort     August 05, 2026                               https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : linux     Version        : 5.10.262-1     CVE ID         : CVE-2022-49803 CVE-2022-50114 CVE-2023-52494 CVE-2025-23131                      CVE-2025-39931 CVE-2026-23204 CVE-2026-31451 CVE-2026-31755                      CVE-2026-43216 CVE-2026-43219 CVE-2026-43499 CVE-2026-46116                      CVE-2026-46135 CVE-2026-46252 CVE-2026-46331 CVE-2026-52942                      CVE-2026-53138 CVE-2026-53157 CVE-2026-53158 CVE-2026-53159                      CVE-2026-53167 CVE-2026-53177 CVE-2026-53325 CVE-2026-53329                      CVE-2026-53332 CVE-2026-53381 CVE-2026-53382 CVE-2026-53385                      CVE-2026-53392 CVE-2026-53393 CVE-2026-53397 CVE-2026-53398                      CVE-2026-53399 CVE-2026-53400 CVE-2026-53402 CVE-2026-53403                      CVE-2026-63794 CVE-2026-63796 CVE-2026-63798 CVE-2026-63800                      CVE-2026-63801 CVE-2026-63803 CVE-2026-63806 CVE-2026-63808                      CVE-2026-63809 CVE-2026-63814 CVE-2026-63815 CVE-2026-63818                      CVE-2026-63822 CVE-2026-63823 CVE-2026-63824 CVE-2026-63827                      CVE-2026-63828 CVE-2026-63829 CVE-2026-63830 CVE-2026-63831                      CVE-2026-63834 CVE-2026-63835 CVE-2026-63836 CVE-2026-64188                      CVE-2026-64189 CVE-2026-64191 CVE-2026-64206 CVE-2026-64249                      CVE-2026-64252 CVE-2026-64266 CVE-2026-64268 CVE-2026-64271                      CVE-2026-64273 CVE-2026-64274 CVE-2026-64275 CVE-2026-64276                      CVE-2026-64277 CVE-2026-64296 CVE-2026-64298 CVE-2026-64299                      CVE-2026-64303 CVE-2026-64304 CVE-2026-64306 CVE-2026-64312                      CVE-2026-64313 CVE-2026-64315 CVE-2026-64316 CVE-2026-64317                      CVE-2026-64318 CVE-2026-64322 CVE-2026-64323 CVE-2026-64324                      CVE-2026-64329 CVE-2026-64330 CVE-2026-64331 CVE-2026-64332                      CVE-2026-64333 CVE-2026-64334 CVE-2026-64335 CVE-2026-64337                      CVE-2026-64338 CVE-2026-64340 CVE-2026-64342 CVE-2026-64343                      CVE-2026-64344 CVE-2026-64345 CVE-2026-64347 CVE-2026-64348                      CVE-2026-64351 CVE-2026-64359 CVE-2026-64360 CVE-2026-64361                      CVE-2026-64362 CVE-2026-64363 CVE-2026-64364 CVE-2026-64370                      CVE-2026-64371 CVE-2026-64372 CVE-2026-64373 CVE-2026-64374                      CVE-2026-64375 CVE-2026-64378 CVE-2026-64379 CVE-2026-64380                      CVE-2026-64381 CVE-2026-64403 CVE-2026-64406 CVE-2026-64408                      CVE-2026-64411 CVE-2026-64412 CVE-2026-64413 CVE-2026-64420                      CVE-2026-64422 CVE-2026-64423 CVE-2026-64425 CVE-2026-64429                      CVE-2026-64435 CVE-2026-64436 CVE-2026-64438 CVE-2026-64442                      CVE-2026-64445 CVE-2026-64446 CVE-2026-64448 CVE-2026-64450                      CVE-2026-64452 CVE-2026-64455 CVE-2026-64456 CVE-2026-64461                      CVE-2026-64462 CVE-2026-64465 CVE-2026-64468 CVE-2026-64469                      CVE-2026-64470 CVE-2026-64471 CVE-2026-64475 CVE-2026-64478                      CVE-2026-64483 CVE-2026-64484 CVE-2026-64487 CVE-2026-64488                      CVE-2026-64494 CVE-2026-64495 CVE-2026-64496 CVE-2026-64497                      CVE-2026-64500 CVE-2026-64503 CVE-2026-64504 CVE-2026-64505                      CVE-2026-64510 CVE-2026-64514 CVE-2026-64529 CVE-2026-64534                      CVE-2026-64538 CVE-2026-64540 CVE-2026-64541 CVE-2026-64544                      CVE-2026-64546 CVE-2026-64547 CVE-2026-64548 CVE-2026-64549                      CVE-2026-64550 CVE-2026-64551 CVE-2026-64553 CVE-2026-64554                      CVE-2026-64560

    Several vulnerabilities have been discovered in the Linux kernel that     may lead to a privilege escalation, denial of service or information     leaks.

    For Debian 11 bullseye, these problems have been fixed in version     5.10.262-1. This version additionally includes many more bug fixes     from stable updates 5.10.260-5.10.262.

    We recommend that you upgrade your linux packages.

    For the detailed security status of linux please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/linux

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6405 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6405-1                   security@debian.org     https://www.debian.org/security/                     Salvatore Bonaccorso     July 31, 2026                         https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : linux     CVE ID         : CVE-2026-45944 CVE-2026-53005 CVE-2026-53260 CVE-2026-53365                      CVE-2026-63970 CVE-2026-64192 CVE-2026-64206 CVE-2026-64227                      CVE-2026-64286 CVE-2026-64287 CVE-2026-64307 CVE-2026-64341                      CVE-2026-64352 CVE-2026-64361 CVE-2026-64363 CVE-2026-64364                      CVE-2026-64369 CVE-2026-64371 CVE-2026-64375 CVE-2026-64390                      CVE-2026-64401 CVE-2026-64405 CVE-2026-64413 CVE-2026-64416                      CVE-2026-64421 CVE-2026-64428 CVE-2026-64434 CVE-2026-64438                      CVE-2026-64441 CVE-2026-64461 CVE-2026-64462 CVE-2026-64472                      CVE-2026-64481 CVE-2026-64488 CVE-2026-64493 CVE-2026-64507                      CVE-2026-64508 CVE-2026-64509 CVE-2026-64510 CVE-2026-64530                      CVE-2026-64531 CVE-2026-64532 CVE-2026-64533 CVE-2026-64534                      CVE-2026-64535 CVE-2026-64537 CVE-2026-64538 CVE-2026-64539                      CVE-2026-64540 CVE-2026-64541 CVE-2026-64542 CVE-2026-64543                      CVE-2026-64544 CVE-2026-64545 CVE-2026-64546 CVE-2026-64547                      CVE-2026-64548 CVE-2026-64549 CVE-2026-64550 CVE-2026-64551                      CVE-2026-64552 CVE-2026-64553 CVE-2026-64554 CVE-2026-64555                      CVE-2026-64557 CVE-2026-64558 CVE-2026-64559 CVE-2026-64560     Debian Bug     : 1130336

    Several vulnerabilities have been discovered in the Linux kernel that     may lead to a privilege escalation, denial of service or information     leaks.

    For the stable distribution (trixie), these problems have been fixed in     version 6.12.100-1.

    We recommend that you upgrade your linux packages.

    For the detailed security status of linux please refer to its security     tracker page at:
    https://security-tracker.debian.org/tracker/linux

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - posix-cpu-timers: Prevent UAF caused by non-leader exec() race Wongi and Jungwoo decoded and reported a     non-leader exec() related race which can result in an UAF: sys_timer_delete() exec() posix_cpu_timer_del()     // Observes old leader p = pid_task(pid, pid_type); de_thread() switch_leader(); release_task(old_leader)
    __exit_signal(old_leader) sighand = lock(old_leader, sighand); posix_cpu_timers*_exit(); sighand =     lock_task_sighand(p) unhash_task(old_leader); sh = lock(p, sighand) old_leader->sighand = NULL;
    unlock(sighand); (p->sighand == NULL) unlock(sh) return NULL; // Returns without action if(!sighand)     return 0; free_posix_timer(); This is harmless unless the deleted timer was armed and enqueued in     p->signal because on exec() a TGID targeted timer is inherited. As sys_timer_delete() freed the underlying     posix timer object run_posix_cpu_timers() or any timerqueue related add/delete operations on other timers     will access the freed object's timerqueue node, which results in an UAF. There is a similar problem vs.
    posix_cpu_timer_set(). For regular posix timers it just transiently returns -ESRCH to user space, but for     the use case in do_cpu_nanosleep() it's the same UAF just that the k_itimer is allocated on the stack.
    Also posix_cpu_timer_rearm() fails to rearm the timer, which means it stops to expire. While debating     solutions Frederic pointed out another problem: posix_cpu_timer_del(tmr) __exit_signal(p)     posix_cpu_timers*_exit(p); unhash_task(p); p->sighand = NULL; sh = lock_task_sighand(p) sighand =     p->sighand; if (!sighand) return NULL; lock(sighand); if (!sh) WARN_ON_ONCE(timer_queued(tmr)); On weakly     ordered architectures it is not guaranteed that posix_cpu_timer_del() will observe the stores in     posix_cpu_timers*_exit() when p->sighand is observed as NULL, which means the WARN() can be a false     positive. Solve these issues by: 1) Changing the store in __exit_signal() to smp_store_release(). 2)     Adding a smp_acquire__after_ctrl_dep() into the !sighand path of lock_task_sighand(). 3) Creating a helper     function for looking up the task and locking sighand which does not return when sighand == NULL. Instead     it retries the task lookup and only if that fails it gives up. 4) Using that helper in the three affected     functions. #1/#2 ensures that the reader side which observes sighand == NULL also observes all preceeding     stores, i.e. the stores in posix_cpu_timers*_exit() and the ones in unhash_task(). #3 ensures that the     above described non-leader exec() situation is handled gracefully. When the task lookup returns the old     leader, but sighand == NULL then it retries. In the non-leader exec() case the subsequent task lookup will     observe the new leader due to #1/#2. In normal exit() scenarios the subsequent lookup fails. When the task     lookup fails, the function also checks whether the timer is still enqueued and issues a warning if that's     the case. Unfortunately there is nothing which can be done about it, but as the task is already not longer     visible the timer should not be accessed anymore. This check also requires memory ordering, which is not     provided when the first lookup fails. To achieve that the check is preceeded by a smp_rmb() which pairs     with the smp_wmb() in write_seqlock() in __exit_signal(). That ensures that the stores in     posix_cpu_timers*_exit() are visible. The history of the non-leader exec() issue goes back to the early     days of posix CPU timers, which stored a pointer to the group leader task in the timer. That obviously     fails when a non-leader exec() switches the leader. commit e0a70217107e (posix-cpu-timers: workaround to     suppress the problems with mt exec) added a temporary workaround for that in 2010 which surv
    ---truncated--- (CVE-2026-64560)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
337239	Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-2057)	Nessus	Amazon Linux Local Security Checks	Local	medium
337226	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-2058)	Nessus	Amazon Linux Local Security Checks	Local	medium
337224	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2026-129 (ALASKERNEL-5.10-2026-129)	Nessus	Amazon Linux Local Security Checks	Local	medium
335327	SUSE SLES15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2026:3602-1)	Nessus	SuSE Local Security Checks	Local	high
335101	SUSE SLES15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2026:3595-1)	Nessus	SuSE Local Security Checks	Local	high
335098	SUSE SLES15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2026:3593-1)	Nessus	SuSE Local Security Checks	Local	high
335080	openSUSE 16: cluster-md-kmp-64kb / cluster-md-kmp-azure / cluster-md-kmp-default / etc (openSUSE-SU-2026:21555-1)	Nessus	SuSE Local Security Checks	Local	high
334784	Photon OS 5.0: Linux PHSA-2026-5.0-92-0952	Nessus	PhotonOS Local Security Checks	Local	medium
333521	Debian dla-4724 : ata-modules-6.12.100+deb12-armmp-di - security update	Nessus	Debian Local Security Checks	Local	medium
333520	Debian dla-4723 : linux-config-6.1 - security update	Nessus	Debian Local Security Checks	Local	high
332716	Debian dla-4720 : ata-modules-6.1.0-48-armmp-di - security update	Nessus	Debian Local Security Checks	Local	high
332715	Debian dla-4717 : ata-modules-5.10.0-43-armmp-di - security update	Nessus	Debian Local Security Checks	Local	high
331409	Debian dsa-6405 : ata-modules-6.12.100+deb13-armmp-di - security update	Nessus	Debian Local Security Checks	Local	medium
330706	Linux Distros Unpatched Vulnerability : CVE-2026-64560	Nessus	Misc.	Local	high

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