The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1787305050 advisory.

  - In the Linux kernel, the following vulnerability has been resolved: l2tp: prevent possible tunnel refcount     underflow When a session is created, it sets a backpointer to its tunnel. When the session refcount drops     to 0, l2tp_session_free drops the tunnel refcount if session->tunnel is non-NULL. However, session->tunnel     is set in l2tp_session_create, before the tunnel refcount is incremented by l2tp_session_register, which     leaves a small window where session->tunnel is non-NULL when the tunnel refcount hasn't been bumped.
    Moving the assignment to l2tp_session_register is trivial but l2tp_session_create calls     l2tp_session_set_header_len which uses session->tunnel to get the tunnel's encap. Add an encap arg to     l2tp_session_set_header_len to avoid using session->tunnel. If l2tpv3 sessions have colliding IDs, it is     possible for l2tp_v3_session_get to race with l2tp_session_register and fetch a session which doesn't yet     have session->tunnel set. Add a check for this case. (CVE-2024-49940)

  - In the Linux kernel, the following vulnerability has been resolved: mm/thp: fix deferred split unqueue     naming and locking Recent changes are putting more pressure on THP deferred split queues: under load     revealing long-standing races, causing list_del corruptions, Bad page states and worse (I keep BUGs in     both of those, so usually don't get to see how badly they end up without). The relevant recent changes     being 6.8's mTHP, 6.10's mTHP swapout, and 6.12's mTHP swapin, improved swap allocation, and underused THP     splitting. Before fixing locking: rename misleading folio_undo_large_rmappable(), which does not undo     large_rmappable, to folio_unqueue_deferred_split(), which is what it does. But that and its out-of-line
    __callee are mm internals of very limited usability: add comment and WARN_ON_ONCEs to check usage; and     return a bool to say if a deferred split was unqueued, which can then be used in WARN_ON_ONCEs around     safety checks (sparing callers the arcane conditionals in __folio_unqueue_deferred_split()). Just omit the     folio_unqueue_deferred_split() from free_unref_folios(), all of whose callers now call it beforehand (and     if any forget then bad_page() will tell) - except for its caller put_pages_list(), which itself no longer     has any callers (and will be deleted separately). Swapout: mem_cgroup_swapout() has been resetting     folio->memcg_data 0 without checking and unqueueing a THP folio from deferred split list; which is     unfortunate, since the split_queue_lock depends on the memcg (when memcg is enabled); so swapout has been     unqueueing such THPs later, when freeing the folio, using the pgdat's lock instead: potentially corrupting     the memcg's list. __remove_mapping() has frozen refcount to 0 here, so no problem with calling     folio_unqueue_deferred_split() before resetting memcg_data. That goes back to 5.4 commit 87eaceb3faa5     (mm: thp: make deferred split shrinker memcg aware): which included a check on swapcache before adding     to deferred queue, but no check on deferred queue before adding THP to swapcache. That worked fine with     the usual sequence of events in reclaim (though there were a couple of rare ways in which a THP on     deferred queue could have been swapped out), but 6.12 commit dafff3f4c850 (mm: split underused THPs)     avoids splitting underused THPs in reclaim, which makes swapcache THPs on deferred queue commonplace. Keep     the check on swapcache before adding to deferred queue? Yes: it is no longer essential, but preserves the     existing behaviour, and is likely to be a worthwhile optimization (vmstat showed much more traffic on the     queue under swapping load if the check was removed); update its comment. Memcg-v1 move (deprecated):
    mem_cgroup_move_account() has been changing folio->memcg_data without checking and unqueueing a THP folio     from the deferred list, sometimes corrupting from memcg's list, like swapout. Refcount is non-zero here,     so folio_unqueue_deferred_split() can only be used in a WARN_ON_ONCE to validate the fix, which must be     done earlier: mem_cgroup_move_charge_pte_range() first try to split the THP (splitting of course     unqueues), or skip it if that fails. Not ideal, but moving charge has been requested, and khugepaged     should repair the THP later: nobody wants new custom unqueueing code just for this deprecated case. The     87eaceb3faa5 commit did have the code to move from one deferred list to another (but was not conscious of     its unsafety while refcount non-0); but that was removed by 5.6 commit fac0516b5534 (mm: thp: don't need     care deferred split queue in memcg charge move path), which argued that the existence of a PMD mapping     guarantees that the THP cannot be on a deferred list. As above, false in rare cases, and now commonly     false. Backport to 6.11 should be straightforward. Earlier backports must take care that other
    _deferred_list fixes and dependencies are included. There is not a strong case for backports, but they can     fix cornercases. (CVE-2024-53079)

  - In the Linux kernel, the following vulnerability has been resolved: io_uring/kbuf: reallocate buf lists on     upgrade IORING_REGISTER_PBUF_RING can reuse an old struct io_buffer_list if it was created for legacy     selected buffer and has been emptied. It violates the requirement that most of the field should stay     stable after publish. Always reallocate it instead. (CVE-2025-21836)

  - In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Add sanity checks on     rdev validity There is a possibility that ulp_irq_stop and ulp_irq_start callbacks will be called when the     device is in detached state. This can cause a crash due to NULL pointer dereference as the rdev is already     freed. (CVE-2025-21901)

  - In the Linux kernel, the following vulnerability has been resolved: cpufreq/amd-pstate: Add missing NULL     ptr check in amd_pstate_update Check if policy is NULL before dereferencing it in amd_pstate_update.
    (CVE-2025-23137)

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

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1254 advisory.

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

    io_uring/kbuf: always use READ_ONCE() to read ring provided buffer lengths (CVE-2025-39816)

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

    crypto: af_alg - Set merge to zero early in af_alg_sendmsg (CVE-2025-39931)

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

    dm-stripe: fix a possible integer overflow (CVE-2025-39940)

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

    tls: make sure to abort the stream if headers are bogus (CVE-2025-39946)

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

    net/mlx5e: Harden uplink netdev access against device unbind (CVE-2025-39947)

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

    cgroup: split cgroup_destroy_wq into 3 workqueues (CVE-2025-39953)

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

    tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect(). (CVE-2025-39955)

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

    igc: don't fail igc_probe() on LED setup error (CVE-2025-39956)

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

    iommu/amd/pgtbl: Fix possible race while increase page table level (CVE-2025-39961)

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

    io_uring: fix incorrect io_kiocb reference in io_link_skb (CVE-2025-39963)

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

    crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg (CVE-2025-39964)

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

    xfrm: xfrm_alloc_spi shouldn't use 0 as SPI (CVE-2025-39965)

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

    fbcon: fix integer overflow in fbcon_do_set_font (CVE-2025-39967)

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

    smb: client: fix wrong index reference in smb2_compound_op() (CVE-2025-39975)

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

    futex: Prevent use-after-free during requeue-PI (CVE-2025-39977)

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

    nexthop: Forbid FDB status change while nexthop is in a group (CVE-2025-39980)

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

    net: tun: Update napi->skb after XDP process (CVE-2025-39984)

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

    bpf: Check the helper function is valid in get_helper_proto (CVE-2025-39990)

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

    mm: swap: check for stable address space before operating on the VMA (CVE-2025-39992)

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

    scsi: target: target_core_configfs: Add length check to avoid buffer overflow (CVE-2025-39998)

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

    mm/hugetlb: fix folio is still mapped when deleted (CVE-2025-40006)

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

    fs/proc/task_mmu: check p->vec_buf for NULL (CVE-2025-40009)

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

    ipvs: Defer ip_vs_ftp unregister during netns cleanup (CVE-2025-40018)

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

    tracing: dynevent: Add a missing lockdown check on dynevent (CVE-2025-40021)

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

    vhost: Take a reference on the task in struct vhost_task. (CVE-2025-40024)

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

    pinctrl: check the return value of pinmux_ops::get_function_name() (CVE-2025-40030)

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

    Input: uinput - zero-initialize uinput_ff_upload_compat to avoid info leak (CVE-2025-40035)

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

    fs: udf: fix OOB read in lengthAllocDescs handling (CVE-2025-40044)

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

    io_uring/waitid: always prune wait queue entry in io_waitid_wait() (CVE-2025-40047)

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

    uio_hv_generic: Let userspace take care of interrupt mask (CVE-2025-40048)

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

    Squashfs: fix uninit-value in squashfs_get_parent (CVE-2025-40049)

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

    smb: client: fix crypto buffers in non-linear memory (CVE-2025-40052)

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

    ptp: Add a upper bound on max_vclocks (CVE-2025-40057)

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

    iommu/vt-d: Disallow dirty tracking if incoherent page walk (CVE-2025-40058)

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

    fs/ntfs3: reject index allocation if $BITMAP is empty but blocks exist (CVE-2025-40067)

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

    fs: ntfs3: Fix integer overflow in run_unpack() (CVE-2025-40068)

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

    pps: fix warning in pps_register_cdev when register device fail (CVE-2025-40070)

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

    bpf: Explicitly check accesses to bpf_sock_addr (CVE-2025-40078)

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

    nbd: restrict sockets to TCP and UDP (CVE-2025-40080)

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

    perf: arm_spe: Prevent overflow in PERF_IDX2OFF() (CVE-2025-40081)

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

    crypto: rng - Ensure set_ent is always present (CVE-2025-40109)

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

    scsi: mpt3sas: Fix crash in transport port remove by using ioc_info() (CVE-2025-40115)

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

    bpf: Enforce expected_attach_type for tailcall compatibility (CVE-2025-40123)

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

    blk-mq: check kobject state_in_sysfs before deleting in blk_mq_unregister_hctx (CVE-2025-40125)

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

    sunrpc: fix null pointer dereference on zero-length checksum (CVE-2025-40129)

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

    dm: fix NULL pointer dereference in __dm_suspend() (CVE-2025-40134)

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

    mm: hugetlb: avoid soft lockup when mprotect to large memory area (CVE-2025-40153)

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

    bpf: Reject negative offsets for ALU ops (CVE-2025-40169)

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

  - igc: don't fail igc_probe() on LED setup error When igc_led_setup() fails, igc_probe() fails and triggers     kernel panic in free_netdev() since unregister_netdev() is not called. [1] This behavior can be tested     using fault-injection framework, especially the failslab feature. [2] Since LED support is not mandatory,     treat LED setup failures as non-fatal and continue probe with a warning message, consequently avoiding the     kernel panic. [1] kernel BUG at net/core/dev.c:12047! Oops: invalid opcode: 0000 [#1] SMP NOPTI CPU: 0     UID: 0 PID: 937 Comm: repro-igc-led-e Not tainted 6.17.0-rc4-enjuk-tnguy-00865-gc4940196ab02 #64     PREEMPT(voluntary) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2     04/01/2014 RIP: 0010:free_netdev+0x278/0x2b0 [...] Call Trace: <TASK> igc_probe+0x370/0x910     local_pci_probe+0x3a/0x80 pci_device_probe+0xd1/0x200 [...] [2] #!/bin/bash -ex     FAILSLAB_PATH=/sys/kernel/debug/failslab/ DEVICE=0000:00:05.0 START_ADDR=$(grep  igc_led_setup     /proc/kallsyms \ | awk '{printf(0x%s, $1)}') END_ADDR=$(printf 0x%x $((START_ADDR + 0x100))) echo     $START_ADDR > $FAILSLAB_PATH/require-start echo $END_ADDR > $FAILSLAB_PATH/require-end echo 1 >     $FAILSLAB_PATH/times echo 100 > $FAILSLAB_PATH/probability echo N > $FAILSLAB_PATH/ignore-gfp-wait echo     $DEVICE > /sys/bus/pci/drivers/igc/bind (CVE-2025-39956)

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

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2025-20091-1 advisory.

    The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues

    The following security issues were fixed:

    - CVE-2025-21816: hrtimers: Force migrate away hrtimers queued after (bsc#1238472).
    - CVE-2025-38653: proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al     (bsc#1248630).
    - CVE-2025-38718: sctp: linearize cloned gso packets in sctp_rcv (bsc#1249161).
    - CVE-2025-39676: scsi: qla4xxx: Prevent a potential error pointer dereference (bsc#1249302).
    - CVE-2025-39702: ipv6: sr: Fix MAC comparison to be constant-time (bsc#1249317).
    - CVE-2025-39756: fs: Prevent file descriptor table allocations exceeding INT_MAX (bsc#1249512).
    - CVE-2025-39779: btrfs: subpage: keep TOWRITE tag until folio is cleaned (bsc#1249495).
    - CVE-2025-39812: sctp: initialize more fields in sctp_v6_from_sk() (bsc#1250202).
    - CVE-2025-39866: fs: writeback: fix use-after-free in __mark_inode_dirty() (bsc#1250455).
    - CVE-2025-39876: net: fec: Fix possible NPD in fec_enet_phy_reset_after_clk_enable() (bsc#1250400).
    - CVE-2025-39881: kernfs: Fix UAF in polling when open file is released (bsc#1250379).
    - CVE-2025-39895: sched: Fix sched_numa_find_nth_cpu() if mask offline (bsc#1250721).
    - CVE-2025-39903: of_numa: fix uninitialized memory nodes causing kernel panic (bsc#1250749).
    - CVE-2025-39911: i40e: fix IRQ freeing in i40e_vsi_request_irq_msix error path (bsc#1250704).
    - CVE-2025-39947: net/mlx5e: Harden uplink netdev access against device unbind (bsc#1251232).
    - CVE-2025-39948: ice: fix Rx page leak on multi-buffer frames (bsc#1251233).
    - CVE-2025-39949: qed: Don't collect too many protection override GRC elements (bsc#1251177).
    - CVE-2025-39950: net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCP_REPAIR (bsc#1251176).
    - CVE-2025-39955: tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect() (bsc#1251804).
    - CVE-2025-39956: igc: don't fail igc_probe() on LED setup error (bsc#1251809).
    - CVE-2025-39963: io_uring: fix incorrect io_kiocb reference in io_link_skb (bsc#1251819).
    - CVE-2025-39968: i40e: add max boundary check for VF filters (bsc#1252047).
    - CVE-2025-39969: i40e: fix validation of VF state in get resources (bsc#1252044).
    - CVE-2025-39970: i40e: fix input validation logic for action_meta (bsc#1252051).
    - CVE-2025-39971: i40e: fix idx validation in config queues msg (bsc#1252052).
    - CVE-2025-39972: i40e: fix idx validation in i40e_validate_queue_map (bsc#1252039).
    - CVE-2025-39973: i40e: add validation for ring_len param (bsc#1252035).
    - CVE-2025-39978: octeontx2-pf: Fix potential use after free in otx2_tc_add_flow() (bsc#1252069).
    - CVE-2025-39979: net/mlx5: fs, add API for sharing HWS action by refcount (bsc#1252067).
    - CVE-2025-39984: net: tun: Update napi->skb after XDP process (bsc#1252081).
    - CVE-2025-39992: mm: swap: check for stable address space before operating on the VMA (bsc#1252076).
    - CVE-2025-40000: wifi: rtw89: fix use-after-free in rtw89_core_tx_kick_off_and_wait() (bsc#1252062).
    - CVE-2025-40005: spi: cadence-quadspi: Implement refcount to handle unbind during busy (bsc#1252349).
    - CVE-2025-40012: net/smc: fix warning in smc_rx_splice() when calling get_page() (bsc#1252330).
    - CVE-2025-40018: ipvs: Defer ip_vs_ftp unregister during netns cleanup (bsc#1252688).
    - CVE-2025-40040: mm/ksm: fix flag-dropping behavior in ksm_madvise (bsc#1252780).
    - CVE-2025-40051: vhost: vringh: Modify the return value check (bsc#1252858).
    - CVE-2025-40056: vhost: vringh: Fix copy_to_iter return value check (bsc#1252826).
    - CVE-2025-40060: coresight: trbe: Return NULL pointer for allocation failures (bsc#1252848).
    - CVE-2025-40078: bpf: Explicitly check accesses to bpf_sock_addr (bsc#1252789).
    - CVE-2025-40080: nbd: restrict sockets to TCP and UDP (bsc#1252774).
    - CVE-2025-40100: btrfs: do not assert we found block group item when creating free space tree     (bsc#1252918).

    The following non security issues were fixed:

    - add bug reference to existing hv_netvsc change (bsc#1252265)
    - amd-pstate-ut: Reset amd-pstate driver mode after running selftests (bsc#1249226).
    - cgroup/cpuset: Remove remote_partition_check() & make update_cpumasks_hier() handle remote partition     (bsc#1241166).
    - cpuset: Use new excpus for nocpu error check when enabling root partition (bsc#1241166).
    - cpuset: fix failure to enable isolated partition when containing isolcpus (bsc#1241166).
    - doc/README.SUSE: Correct the character used for TAINT_NO_SUPPORT       The character was previously 'N', but upstream used it for TAINT_TEST,       which prompted the change of TAINT_NO_SUPPORT to 'n'.
    - dpll: zl3073x: Add firmware loading functionality (bsc#1252253).
    - dpll: zl3073x: Add functions to access hardware registers (bsc#1252253).
    - dpll: zl3073x: Add low-level flash functions (bsc#1252253).
    - dpll: zl3073x: Add support to get fractional frequency offset (bsc#1252253).
    - dpll: zl3073x: Add support to get phase offset on connected input pin (bsc#1252253).
    - dpll: zl3073x: Add support to get/set esync on pins (bsc#1252253).
    - dpll: zl3073x: Fix double free in zl3073x_devlink_flash_update() (bsc#1252253).
    - dpll: zl3073x: Handle missing or corrupted flash configuration (bsc#1252253).
    - dpll: zl3073x: Implement devlink flash callback (bsc#1252253).
    - dpll: zl3073x: Increase maximum size of flash utility (bsc#1252253).
    - dpll: zl3073x: Refactor DPLL initialization (bsc#1252253).
    - drm/amd/pm: fix smu table id bound check issue in smu_cmn_update_table() (git-fixes).
    - drm/xe/guc: Prepare GuC register list and update ADS size for error capture (stable-fixes).
    - ixgbe: handle IXGBE_VF_FEATURES_NEGOTIATE mbox cmd (bsc#1247222).
    - ixgbe: handle IXGBE_VF_GET_PF_LINK_STATE mailbox operation (bsc#1247222).
    - ixgbevf: fix getting link speed data for E610 devices (bsc#1247222).
    - ixgbevf: fix mailbox API compatibility by negotiating supported features (bsc#1247222).
    - kbuild/modfinal: Link livepatches with module-common.o (bsc#1218644, bsc#1252270).
    - kdb: Replace deprecated strcpy() with memmove() in vkdb_printf() (bsc#1252939).
    - kernel-subpackage-spec: Do not doubly-sign modules (bsc#1251930).
    - nvme-auth: update sc_c in host response (git-fixes bsc#1249397).
    - perf hwmon_pmu: Fix uninitialized variable warning (perf-sle16-v6.13-userspace-update, git-fixes).
    - phy: cadence: cdns-dphy: Update calibration wait time for startup state machine (git-fixes).
    - powerpc/fadump: skip parameter area allocation when fadump is disabled (jsc#PED-9891 git-fixes).
    - proc: fix missing pde_set_flags() for net proc files (bsc#1248630)
    - proc: fix type confusion in pde_set_flags() (bsc#1248630)
    - rpm/check-for-config-changes: ignore CONFIG_SCHED_PROXY_EXEC, too (bsc#1250946)
    - scsi: storvsc: Prefer returning channel with the same CPU as on the I/O issuing CPU (bsc#1252267).
    - x86/microcode/AMD: Limit Entrysign signature checking to known generations (bsc#1252725).
    - x86/resctrl: Fix miscount of bandwidth event when reactivating previously unavailable RMID     (bsc#1252734).
    - x86/resctrl: Refactor resctrl_arch_rmid_read() (bsc#1252734).
    - x86/virt/tdx: Mark memory cache state incoherent when making SEAMCALL (jsc#PED-348).

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 AlmaLinux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1787305050 advisory.

  - In the Linux kernel, the following vulnerability has been resolved: l2tp: prevent possible tunnel refcount     underflow When a session is created, it sets a backpointer to its tunnel. When the session refcount drops     to 0, l2tp_session_free drops the tunnel refcount if session->tunnel is non-NULL. However, session->tunnel     is set in l2tp_session_create, before the tunnel refcount is incremented by l2tp_session_register, which     leaves a small window where session->tunnel is non-NULL when the tunnel refcount hasn't been bumped.
    Moving the assignment to l2tp_session_register is trivial but l2tp_session_create calls     l2tp_session_set_header_len which uses session->tunnel to get the tunnel's encap. Add an encap arg to     l2tp_session_set_header_len to avoid using session->tunnel. If l2tpv3 sessions have colliding IDs, it is     possible for l2tp_v3_session_get to race with l2tp_session_register and fetch a session which doesn't yet     have session->tunnel set. Add a check for this case. (CVE-2024-49940)

  - In the Linux kernel, the following vulnerability has been resolved: mm/thp: fix deferred split unqueue     naming and locking Recent changes are putting more pressure on THP deferred split queues: under load     revealing long-standing races, causing list_del corruptions, Bad page states and worse (I keep BUGs in     both of those, so usually don't get to see how badly they end up without). The relevant recent changes     being 6.8's mTHP, 6.10's mTHP swapout, and 6.12's mTHP swapin, improved swap allocation, and underused THP     splitting. Before fixing locking: rename misleading folio_undo_large_rmappable(), which does not undo     large_rmappable, to folio_unqueue_deferred_split(), which is what it does. But that and its out-of-line
    __callee are mm internals of very limited usability: add comment and WARN_ON_ONCEs to check usage; and     return a bool to say if a deferred split was unqueued, which can then be used in WARN_ON_ONCEs around     safety checks (sparing callers the arcane conditionals in __folio_unqueue_deferred_split()). Just omit the     folio_unqueue_deferred_split() from free_unref_folios(), all of whose callers now call it beforehand (and     if any forget then bad_page() will tell) - except for its caller put_pages_list(), which itself no longer     has any callers (and will be deleted separately). Swapout: mem_cgroup_swapout() has been resetting     folio->memcg_data 0 without checking and unqueueing a THP folio from deferred split list; which is     unfortunate, since the split_queue_lock depends on the memcg (when memcg is enabled); so swapout has been     unqueueing such THPs later, when freeing the folio, using the pgdat's lock instead: potentially corrupting     the memcg's list. __remove_mapping() has frozen refcount to 0 here, so no problem with calling     folio_unqueue_deferred_split() before resetting memcg_data. That goes back to 5.4 commit 87eaceb3faa5     (mm: thp: make deferred split shrinker memcg aware): which included a check on swapcache before adding     to deferred queue, but no check on deferred queue before adding THP to swapcache. That worked fine with     the usual sequence of events in reclaim (though there were a couple of rare ways in which a THP on     deferred queue could have been swapped out), but 6.12 commit dafff3f4c850 (mm: split underused THPs)     avoids splitting underused THPs in reclaim, which makes swapcache THPs on deferred queue commonplace. Keep     the check on swapcache before adding to deferred queue? Yes: it is no longer essential, but preserves the     existing behaviour, and is likely to be a worthwhile optimization (vmstat showed much more traffic on the     queue under swapping load if the check was removed); update its comment. Memcg-v1 move (deprecated):
    mem_cgroup_move_account() has been changing folio->memcg_data without checking and unqueueing a THP folio     from the deferred list, sometimes corrupting from memcg's list, like swapout. Refcount is non-zero here,     so folio_unqueue_deferred_split() can only be used in a WARN_ON_ONCE to validate the fix, which must be     done earlier: mem_cgroup_move_charge_pte_range() first try to split the THP (splitting of course     unqueues), or skip it if that fails. Not ideal, but moving charge has been requested, and khugepaged     should repair the THP later: nobody wants new custom unqueueing code just for this deprecated case. The     87eaceb3faa5 commit did have the code to move from one deferred list to another (but was not conscious of     its unsafety while refcount non-0); but that was removed by 5.6 commit fac0516b5534 (mm: thp: don't need     care deferred split queue in memcg charge move path), which argued that the existence of a PMD mapping     guarantees that the THP cannot be on a deferred list. As above, false in rare cases, and now commonly     false. Backport to 6.11 should be straightforward. Earlier backports must take care that other
    _deferred_list fixes and dependencies are included. There is not a strong case for backports, but they can     fix cornercases. (CVE-2024-53079)

  - In the Linux kernel, the following vulnerability has been resolved: io_uring/kbuf: reallocate buf lists on     upgrade IORING_REGISTER_PBUF_RING can reuse an old struct io_buffer_list if it was created for legacy     selected buffer and has been emptied. It violates the requirement that most of the field should stay     stable after publish. Always reallocate it instead. (CVE-2025-21836)

  - In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Add sanity checks on     rdev validity There is a possibility that ulp_irq_stop and ulp_irq_start callbacks will be called when the     device is in detached state. This can cause a crash due to NULL pointer dereference as the rdev is already     freed. (CVE-2025-21901)

  - In the Linux kernel, the following vulnerability has been resolved: cpufreq/amd-pstate: Add missing NULL     ptr check in amd_pstate_update Check if policy is NULL before dereferencing it in amd_pstate_update.
    (CVE-2025-23137)

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

ID	Name	Product	Family	Published	Updated	Severity
352240	Rocky Linux 9.6 [TuxCare] Security Update: kernel / kernel-abi-stablelists / kernel-core / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1787305050)	Nessus	Rocky Linux Local Security Checks	9/30/2026	9/30/2026	high
271737	Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2025-1254)	Nessus	Amazon Linux Local Security Checks	10/28/2025	9/18/2026	high
270204	Linux Distros Unpatched Vulnerability : CVE-2025-39956	Nessus	Misc.	10/13/2025	7/31/2026	medium
277016	openSUSE 16 Security Update : kernel (openSUSE-SU-2025-20091-1)	Nessus	SuSE Local Security Checks	12/2/2025	12/2/2025	high
352220	AlmaLinux 9.6 [TuxCare] Security Update: kernel / kernel-abi-stablelists / kernel-core / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1787305050)	Nessus	Alma Linux Local Security Checks	9/30/2026	9/30/2026	high

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