In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_fw: fix NULL dereference of "old" filters before change() Like pointed out by Sashiko [1], since commit ed76f5edccc9 ("net: sched: protect filter_chain list with filter_chain_lock mutex") TC filters are added to a shared block and published to datapath before their ->change() function is called. This is a problem for cls_fw: an invalid filter created with the "old" method can still classify some packets before it is destroyed by the validation logic added by Xiang. Therefore, insisting with repeated runs of the following script: # ip link add dev crash0 type dummy # ip link set dev crash0 up # mausezahn crash0 -c 100000 -P 10 \ > -A 4.3.2.1 -B 1.2.3.4 -t udp "dp=1234" -q & # sleep 1 # tc qdisc add dev crash0 egress_block 1 clsact # tc filter add block 1 protocol ip prio 1 matchall \ > action skbedit mark 65536 continue # tc filter add block 1 protocol ip prio 2 fw # ip link del dev crash0 can still make fw_classify() hit the WARN_ON() in [2]: WARNING: ./include/net/pkt_cls.h:88 at fw_classify+0x244/0x250 [cls_fw], CPU#18: mausezahn/1399 Modules linked in: cls_fw(E) act_skbedit(E) CPU: 18 UID: 0 PID: 1399 Comm: mausezahn Tainted: G E 7.0.0-rc6-virtme #17 PREEMPT(full) Tainted: [E]=UNSIGNED_MODULE Hardware name: Red Hat KVM, BIOS 1.16.3-2.el9 04/01/2014 RIP: 0010:fw_classify+0x244/0x250 [cls_fw] Code: 5c 49 c7 45 00 00 00 00 00 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 5b b8 ff ff ff ff 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 90 <0f> 0b 90 eb a0 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffd1b7026bf8a8 EFLAGS: 00010202 RAX: ffff8c5ac9c60800 RBX: ffff8c5ac99322c0 RCX: 0000000000000004 RDX: 0000000000000001 RSI: ffff8c5b74d7a000 RDI: ffff8c5ac8284f40 RBP: ffffd1b7026bf8d0 R08: 0000000000000000 R09: ffffd1b7026bf9b0 R10: 00000000ffffffff R11: 0000000000000000 R12: 0000000000010000 R13: ffffd1b7026bf930 R14: ffff8c5ac8284f40 R15: 0000000000000000 FS: 00007fca40c37740(0000) GS:ffff8c5b74d7a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fca40e822a0 CR3: 0000000005ca0001 CR4: 0000000000172ef0 Call Trace: <TASK> tcf_classify+0x17d/0x5c0 tc_run+0x9d/0x150 __dev_queue_xmit+0x2ab/0x14d0 ip_finish_output2+0x340/0x8f0 ip_output+0xa4/0x250 raw_sendmsg+0x147d/0x14b0 __sys_sendto+0x1cc/0x1f0 __x64_sys_sendto+0x24/0x30 do_syscall_64+0x126/0xf80 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fca40e822ba Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89 RSP: 002b:00007ffc248a42c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 000055ef233289d0 RCX: 00007fca40e822ba RDX: 000000000000001e RSI: 000055ef23328c30 RDI: 0000000000000003 RBP: 000055ef233289d0 R08: 00007ffc248a42d0 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000001e R13: 00000000000186a0 R14: 0000000000000000 R15: 00007fca41043000 </TASK> irq event stamp: 1045778 hardirqs last enabled at (1045784): [<ffffffff864ec042>] __up_console_sem+0x52/0x60 hardirqs last disabled at (1045789): [<ffffffff864ec027>] __up_console_sem+0x37/0x60 softirqs last enabled at (1045426): [<ffffffff874d48c7>] __alloc_skb+0x207/0x260 softirqs last disabled at (1045434): [<ffffffff874fe8f8>] __dev_queue_xmit+0x78/0x14d0 Then, because of the value in the packet's mark, dereference on 'q->handle' with NULL 'q' occurs: BUG: kernel NULL pointer dereference, address: 0000000000000038 [...] RIP: 0010:fw_classify+0x1fe/0x250 [cls_fw] [...] Skip "old-style" classification on shared blocks, so that the NULL dereference is fixed and WARN_ON() is not hit anymore in the short lifetime of invalid cls_fw "old-style" filters. [1] https://sashiko.dev/#/patchset/2 ---truncated---

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1935 advisory.

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

    net/sched: cls_fw: fix NULL dereference of old filters before change() (CVE-2026-53080)

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

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

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1934 advisory.

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

    net/sched: cls_fw: fix NULL dereference of old filters before change() (CVE-2026-53080)

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

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

An update of the linux package has been released.

The version of kernel installed on the remote host is prior to 5.10.259-258.1043. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2026-124 advisory.

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

    net/sched: teql: Fix double-free in teql_master_xmit (CVE-2026-23449)

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

    ext4: validate p_idx bounds in ext4_ext_correct_indexes (CVE-2026-31449)

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

    net/tls: fix use-after-free in -EBUSY error path of tls_do_encryption (CVE-2026-31533)

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

    smb: client: fix OOB read in smb2_ioctl_query_info QUERY_INFO path (CVE-2026-31708)

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

    smb: client: require a full NFS mode SID before reading mode bits (CVE-2026-43350)

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

    lib/crypto: mpi: Fix integer underflow in mpi_read_raw_from_sgl() (CVE-2026-43492)

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

    ipvs: skip ipv6 extension headers for csum checks (CVE-2026-45850)

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

    udf: fix partition descriptor append bookkeeping (CVE-2026-45991)

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

    thermal: core: Fix thermal zone governor cleanup issues (CVE-2026-46021)

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

    ceph: only d_add() negative dentries when they are unhashed (CVE-2026-46052)

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

    net: bridge: use a stable FDB dst snapshot in RCU readers (CVE-2026-46086)

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

    dm-thin: fix metadata refcount underflow (CVE-2026-46107)

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

    mptcp: pm: ADD_ADDR rtx: fix potential data-race (CVE-2026-46137)

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

    btrfs: fix btrfs_ioctl_space_info() slot_count TOCTOU which can lead to info-leak (CVE-2026-46159)

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

    btrfs: fix missing last_unlink_trans update when removing a directory (CVE-2026-46160)

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

    hfsplus: fix uninit-value by validating catalog record size (CVE-2026-46169)

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

    fbcon: Avoid OOB font access if console rotation fails (CVE-2026-46191)

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

    tracepoint: balance regfunc() on func_add() failure in tracepoint_add_func() (CVE-2026-46196)

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

    pmdomain: core: Fix detach procedure for virtual devices in genpd (CVE-2026-46292)

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

    hfsplus: fix held lock freed on hfsplus_fill_super() (CVE-2026-46299)

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

    tap: free page on error paths in tap_get_user_xdp() (CVE-2026-46320)

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

    tun: free page on short-frame rejection in tun_xdp_one() (CVE-2026-46321)

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

    tun: free page on build_skb failure in tun_xdp_one() (CVE-2026-46322)

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

    bpf: Free reuseport cBPF prog after RCU grace period. (CVE-2026-52910)

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

    netfilter: nf_queue: hold bridge skb->dev while queued (CVE-2026-52912)

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

    ipc: limit next_id allocation to the valid ID range (CVE-2026-52923)

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

    sctp: purge outqueue on stale COOKIE-ECHO handling (CVE-2026-52924)

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

    netfilter: ebtables: fix OOB read in compat_mtw_from_user (CVE-2026-52927)

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

    sctp: stream: fully roll back denied add-stream state (CVE-2026-52929)

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

    ipc/shm: serialize orphan cleanup with shm_nattch updates (CVE-2026-52930)

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

    net: skbuff: fix missing zerocopy reference in pskb_carve helpers (CVE-2026-52943)

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

    fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling (CVE-2026-52946)

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

    i2c: dev: prevent integer overflow in I2C_TIMEOUT ioctl (CVE-2026-52948)

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

    net/sched: cls_fw: fix NULL dereference of old filters before change() (CVE-2026-53080)

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

    RDMA/umem: Fix truncation for block sizes >= 4G (CVE-2026-53133)

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

    netfilter: nft_fib: fix stale stack leak via the OIFNAME register (CVE-2026-53134)

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

    fuse: reject fuse_notify() pagecache ops on directories (CVE-2026-53168)

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

    IB/isert: Reject login PDUs shorter than ISER_HEADERS_LEN (CVE-2026-53176)

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

    RDMA/srp: bound SRP_RSP sense copy by the received length (CVE-2026-53186)

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

    mm/huge_memory: update file PMD counter before folio_put() (CVE-2026-53189)

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

    USB: serial: kl5kusb105: fix bulk-out buffer overflow (CVE-2026-53194)

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

    USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr() (CVE-2026-53195)

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

    USB: serial: io_ti: fix heap overflow in get_manuf_info() (CVE-2026-53196)

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

    hv_netvsc: use kmap_local_page in netvsc_copy_to_send_buf (CVE-2026-53199)

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

    netfilter: nft_tunnel: fix use-after-free on object destroy (CVE-2026-53212)

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

    netfilter: nft_exthdr: fix register tracking for F_PRESENT flag (CVE-2026-53218)

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

    netfilter: x_tables: avoid leaking percpu counter pointers (CVE-2026-53219)

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

    ip6_vti: fix incorrect tunnel matching in vti6_tnl_lookup() (CVE-2026-53221)

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

    net: guard timestamp cmsgs to real error queue skbs (CVE-2026-53223)

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

    sctp: fix uninit-value in __sctp_rcv_asconf_lookup() (CVE-2026-53225)

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

    net: openvswitch: fix possible kfree_skb of ERR_PTR (CVE-2026-53227)

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

    ipv6: sit: reload inner IPv6 header after GSO offloads (CVE-2026-53228)

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

    netlabel: validate unlabeled address and mask attribute lengths (CVE-2026-53238)

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

    xfrm: policy: fix use-after-free on inexact bin in xfrm_policy_bysel_ctx() (CVE-2026-53239)

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

    net/802/mrp: fix vector attribute parsing in mrp_pdu_parse_vecattr (CVE-2026-53245)

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

    ipv4: restrict IPOPT_SSRR and IPOPT_LSRR options (CVE-2026-53249)

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

    net/sched: act_api: use RCU with deferred freeing for action lifecycle (CVE-2026-53264)

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

    netfilter: bridge: make ebt_snat ARP rewrite writable (CVE-2026-53266)

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

    netfilter: conntrack_irc: fix possible out-of-bounds read (CVE-2026-53268)

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

    netfilter: synproxy: add mutex to guard hook reference counting (CVE-2026-53269)

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

    ipvs: clear the svc scheduler ptr early on edit (CVE-2026-53270)

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

    net: bonding: fix NULL pointer dereference in bond_do_ioctl()

    In bond_do_ioctl(), slave_dev is obtained via __dev_get_by_name() whichcan return NULL if the requested     interface name does not exist. However,the subsequent slave_dbg() call is placed before the NULL check:

    slave_dev = __dev_get_by_name(net, ifr->ifr_slave);slave_dbg(bond_dev, slave_dev, slave_dev=%p:\n,     slave_dev); //hereif (!slave_dev)return -ENODEV;

    The slave_dbg() macro expands to netdev_dbg(bond_dev, (slave %s):  fmt,(slave_dev)->name, ...) which     unconditionally dereferences slave_dev->namebefore the NULL check is performed. This results in a NULL     pointerdereference kernel oops when a user calls bonding ioctl (e.g.SIOCBONDENSLAVE, SIOCBONDRELEASE,     etc.) with a non-existent slaveinterface name.

    This is reachable from userspace via the bonding ioctl interface withCAP_NET_ADMIN capability, making it a     potential local denial-of-servicevector.

    Fix by moving the slave_dbg() call after the NULL check. (CVE-2026-53337)

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

    signal: clear JOBCTL_PENDING_MASK for caller in zap_other_threads()

    When a multi-threaded process receives a stop signal (e.g., SIGSTOP),do_signal_stop() sets     JOBCTL_STOP_PENDING and JOBCTL_STOP_CONSUME on allthreads and sets signal->group_stop_count to the number     of threads. Ifone of the threads concurrently calls execve(), de_thread() invokeszap_other_threads() to     kill all other threads. zap_other_threads()aborts the pending group stop by resetting     signal->group_stop_count to 0and clears the JOBCTL_PENDING_MASK for all other threads. However, itfails to     clear the job control flags for the calling thread.

    When execve() completes, the calling thread returns to user mode andchecks for pending signals. Seeing the     stale JOBCTL_STOP_PENDING flag,it calls do_signal_stop(), which invokes     task_participate_group_stop().Since JOBCTL_STOP_CONSUME is still set, it attempts to decrement thealready-     zero signal->group_stop_count, triggering a warning:

    sig->group_stop_count == 0WARNING: CPU: 1 PID: 6475 at     kernel/signal.c:373task_participate_group_stop+0x215/0x2d0Call Trace:<TASK>do_signal_stop+0x3be/0x5c0     kernel/signal.c:2619get_signal+0xa8c/0x1330 kernel/signal.c:2884arch_do_signal_or_restart+0xbc/0x840     arch/x86/kernel/signal.c:337exit_to_user_mode_loop+0x8c/0x4d0     kernel/entry/common.c:98do_syscall_64+0x33e/0xf80     arch/x86/entry/syscall_64.c:100entry_SYSCALL_64_after_hwframe+0x77/0x7f</TASK>

    Fix this race condition by clearing the JOBCTL_PENDING_MASK for thecalling thread in zap_other_threads(),     ensuring it does not retain anystale job control state after the thread group is destroyed. This     alignswith other functions that tear down a thread group and abort groupstops, such as zap_process() and     complete_signal(), which correctlyclear these flags for all threads including the current one.
    (CVE-2026-53352)

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

    arm64: errata: Mitigate TLBI errata on various Arm CPUs

    A number of CPUs developed by Arm suffer from errata whereby a broadcastTLBI;DSB sequence may complete     before the global observation of writeswhich are translated by an affected TLB entry.

    These errata ONLY affect the completion of memory accesses which havebeen translated by an invalidated TLB     entry, and these errata DO NOTaffect the actual invalidation of TLB entries. TLB entries are     removedcorrectly.

    This issue has been assigned CVE ID CVE-2025-10263.

    To mitigate this issue, Arm recommends that software follows anyaffected TLBI;DSB sequence with an     additional TLBI;DSB, which willensure that all memory write effects affected by the first TLBI havebeen     globally observed. The additional TLBI can use any operation thatis broadcast to affected CPUs, and the     additional DSB can use any optionthat is sufficient to complete the additional TLBI.

    The ARM64_WORKAROUND_REPEAT_TLBI workaround is sufficient to mitigatethe issue. Enable this workaround for     affected CPUs, and update thesilicon errata documentation accordingly.

    Note that due to the manner in which Arm develops IP and tracks errata,some CPUs share a common erratum     number. (CVE-2026-53354)

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

    drm/i915/gem: Fix phys BO pread/pwrite with offset (CVE-2026-53356)

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 Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4671 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4671-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                        Ben Hutchings     July 05, 2026                                 https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : linux-6.1     Version        : 6.1.176-1~deb11u1     CVE ID         : CVE-2023-53292 CVE-2023-53989 CVE-2023-54125 CVE-2023-54271                      CVE-2023-54322 CVE-2024-27012 CVE-2024-36922 CVE-2024-53221                      CVE-2024-56657 CVE-2025-10263 CVE-2025-21739 CVE-2025-21863                      CVE-2025-22105 CVE-2025-37864 CVE-2025-38584 CVE-2025-38627                      CVE-2025-38710 CVE-2025-39997 CVE-2025-40347 CVE-2025-68201                      CVE-2025-68315 CVE-2025-68823 CVE-2026-23066 CVE-2026-23255                      CVE-2026-23310 CVE-2026-23389 CVE-2026-23399 CVE-2026-23442                      CVE-2026-23444 CVE-2026-23468 CVE-2026-31407 CVE-2026-31449                      CVE-2026-31488 CVE-2026-31489 CVE-2026-31500 CVE-2026-31532                      CVE-2026-31576 CVE-2026-31577 CVE-2026-31578 CVE-2026-31580                      CVE-2026-31581 CVE-2026-31583 CVE-2026-31585 CVE-2026-31586                      CVE-2026-31587 CVE-2026-31588 CVE-2026-31590 CVE-2026-31594                      CVE-2026-31595 CVE-2026-31596 CVE-2026-31597 CVE-2026-31598                      CVE-2026-31599 CVE-2026-31602 CVE-2026-31603 CVE-2026-31605                      CVE-2026-31607 CVE-2026-31611 CVE-2026-31612 CVE-2026-31613                      CVE-2026-31615 CVE-2026-31616 CVE-2026-31617 CVE-2026-31618                      CVE-2026-31619 CVE-2026-31622 CVE-2026-31623 CVE-2026-31624                      CVE-2026-31625 CVE-2026-31626 CVE-2026-31627 CVE-2026-31629                      CVE-2026-31630 CVE-2026-31637 CVE-2026-31642 CVE-2026-31673                      CVE-2026-31676 CVE-2026-31681 CVE-2026-31684 CVE-2026-31685                      CVE-2026-31686 CVE-2026-31696 CVE-2026-31697 CVE-2026-31698                      CVE-2026-31699 CVE-2026-31700 CVE-2026-31701 CVE-2026-31702                      CVE-2026-31704 CVE-2026-31705 CVE-2026-31708 CVE-2026-31709                      CVE-2026-31711 CVE-2026-31712 CVE-2026-31715 CVE-2026-31716                      CVE-2026-43052 CVE-2026-43058 CVE-2026-43064 CVE-2026-43071                      CVE-2026-43072 CVE-2026-43075 CVE-2026-43076 CVE-2026-43079                      CVE-2026-43080 CVE-2026-43085 CVE-2026-43089 CVE-2026-43093                      CVE-2026-43094 CVE-2026-43098 CVE-2026-43099 CVE-2026-43103                      CVE-2026-43104 CVE-2026-43105 CVE-2026-43110 CVE-2026-43111                      CVE-2026-43112 CVE-2026-43113 CVE-2026-43114 CVE-2026-43116                      CVE-2026-43117 CVE-2026-43219 CVE-2026-43303 CVE-2026-43350                      CVE-2026-43421 CVE-2026-43492 CVE-2026-43493 CVE-2026-43494                      CVE-2026-43495 CVE-2026-43496 CVE-2026-43497 CVE-2026-43499                      CVE-2026-43501 CVE-2026-43502 CVE-2026-45834 CVE-2026-45835                      CVE-2026-45836 CVE-2026-45838 CVE-2026-45839 CVE-2026-45840                      CVE-2026-45841 CVE-2026-45842 CVE-2026-45843 CVE-2026-45844                      CVE-2026-45846 CVE-2026-45850 CVE-2026-45930 CVE-2026-45986                      CVE-2026-45987 CVE-2026-45991 CVE-2026-45994 CVE-2026-45996                      CVE-2026-45997 CVE-2026-45999 CVE-2026-46002 CVE-2026-46003                      CVE-2026-46004 CVE-2026-46005 CVE-2026-46006 CVE-2026-46009                      CVE-2026-46015 CVE-2026-46018 CVE-2026-46019 CVE-2026-46021                      CVE-2026-46022 CVE-2026-46023 CVE-2026-46024 CVE-2026-46026                      CVE-2026-46027 CVE-2026-46031 CVE-2026-46033 CVE-2026-46037                      CVE-2026-46038 CVE-2026-46040 CVE-2026-46043 CVE-2026-46044                      CVE-2026-46046 CVE-2026-46047 CVE-2026-46049 CVE-2026-46050                      CVE-2026-46051 CVE-2026-46052 CVE-2026-46053 CVE-2026-46056                      CVE-2026-46058 CVE-2026-46062 CVE-2026-46064 CVE-2026-46065                      CVE-2026-46069 CVE-2026-46070 CVE-2026-46072 CVE-2026-46075                      CVE-2026-46077 CVE-2026-46078 CVE-2026-46079 CVE-2026-46080                      CVE-2026-46082 CVE-2026-46083 CVE-2026-46086 CVE-2026-46088                      CVE-2026-46091 CVE-2026-46098 CVE-2026-46099 CVE-2026-46101                      CVE-2026-46102 CVE-2026-46103 CVE-2026-46107 CVE-2026-46108                      CVE-2026-46109 CVE-2026-46110 CVE-2026-46112 CVE-2026-46113                      CVE-2026-46116 CVE-2026-46119 CVE-2026-46120 CVE-2026-46122                      CVE-2026-46123 CVE-2026-46124 CVE-2026-46125 CVE-2026-46127                      CVE-2026-46128 CVE-2026-46129 CVE-2026-46132 CVE-2026-46133                      CVE-2026-46136 CVE-2026-46137 CVE-2026-46143 CVE-2026-46146                      CVE-2026-46149 CVE-2026-46150 CVE-2026-46151 CVE-2026-46159                      CVE-2026-46160 CVE-2026-46161 CVE-2026-46163 CVE-2026-46164                      CVE-2026-46165 CVE-2026-46167 CVE-2026-46168 CVE-2026-46169                      CVE-2026-46172 CVE-2026-46173 CVE-2026-46177 CVE-2026-46178                      CVE-2026-46179 CVE-2026-46180 CVE-2026-46184 CVE-2026-46185                      CVE-2026-46186 CVE-2026-46187 CVE-2026-46189 CVE-2026-46190                      CVE-2026-46191 CVE-2026-46193 CVE-2026-46195 CVE-2026-46196                      CVE-2026-46197 CVE-2026-46198 CVE-2026-46199 CVE-2026-46205                      CVE-2026-46206 CVE-2026-46208 CVE-2026-46209 CVE-2026-46212                      CVE-2026-46214 CVE-2026-46218 CVE-2026-46220 CVE-2026-46227                      CVE-2026-46230 CVE-2026-46231 CVE-2026-46233 CVE-2026-46234                      CVE-2026-46235 CVE-2026-46236 CVE-2026-46238 CVE-2026-46273                      CVE-2026-46275 CVE-2026-46276 CVE-2026-46280 CVE-2026-46285                      CVE-2026-46291 CVE-2026-46292 CVE-2026-46294 CVE-2026-46296                      CVE-2026-46299 CVE-2026-46301 CVE-2026-46303 CVE-2026-46304                      CVE-2026-46306 CVE-2026-46307 CVE-2026-46314 CVE-2026-46319                      CVE-2026-46320 CVE-2026-46321 CVE-2026-46322 CVE-2026-46323                      CVE-2026-46331 CVE-2026-52909 CVE-2026-52910 CVE-2026-52911                      CVE-2026-52912 CVE-2026-52913 CVE-2026-52914 CVE-2026-52915                      CVE-2026-52916 CVE-2026-52917 CVE-2026-52918 CVE-2026-52919                      CVE-2026-52920 CVE-2026-52921 CVE-2026-52922 CVE-2026-52923                      CVE-2026-52924 CVE-2026-52925 CVE-2026-52926 CVE-2026-52927                      CVE-2026-52929 CVE-2026-52930 CVE-2026-52931 CVE-2026-52933                      CVE-2026-52934 CVE-2026-52935 CVE-2026-52939 CVE-2026-52941                      CVE-2026-52942 CVE-2026-52943 CVE-2026-52946 CVE-2026-52947                      CVE-2026-52948 CVE-2026-52954 CVE-2026-52955 CVE-2026-52957                      CVE-2026-52958 CVE-2026-52962 CVE-2026-52963 CVE-2026-52967                      CVE-2026-52968 CVE-2026-52969 CVE-2026-52970 CVE-2026-52972                      CVE-2026-52974 CVE-2026-52975 CVE-2026-52977 CVE-2026-52981                      CVE-2026-52982 CVE-2026-52984 CVE-2026-52985 CVE-2026-52986                      CVE-2026-52989 CVE-2026-52992 CVE-2026-52993 CVE-2026-52995                      CVE-2026-52998 CVE-2026-52999 CVE-2026-53001 CVE-2026-53002                      CVE-2026-53003 CVE-2026-53004 CVE-2026-53006 CVE-2026-53011                      CVE-2026-53012 CVE-2026-53016 CVE-2026-53021 CVE-2026-53022                      CVE-2026-53023 CVE-2026-53033 CVE-2026-53034 CVE-2026-53035                      CVE-2026-53036 CVE-2026-53037 CVE-2026-53039 CVE-2026-53040                      CVE-2026-53041 CVE-2026-53043 CVE-2026-53045 CVE-2026-53046                      CVE-2026-53047 CVE-2026-53048 CVE-2026-53049 CVE-2026-53050                      CVE-2026-53052 CVE-2026-53056 CVE-2026-53059 CVE-2026-53060                      CVE-2026-53061 CVE-2026-53062 CVE-2026-53063 CVE-2026-53064                      CVE-2026-53065 CVE-2026-53066 CVE-2026-53068 CVE-2026-53069                      CVE-2026-53071 CVE-2026-53072 CVE-2026-53073 CVE-2026-53074                      CVE-2026-53075 CVE-2026-53077 CVE-2026-53080 CVE-2026-53082                      CVE-2026-53086 CVE-2026-53088 CVE-2026-53093 CVE-2026-53096                      CVE-2026-53111 CVE-2026-53112 CVE-2026-53128 CVE-2026-53130                      CVE-2026-53131 CVE-2026-53133 CVE-2026-53134 CVE-2026-53135                      CVE-2026-53136 CVE-2026-53137 CVE-2026-53146 CVE-2026-53147                      CVE-2026-53148 CVE-2026-53149 CVE-2026-53150 CVE-2026-53159                      CVE-2026-53160 CVE-2026-53161 CVE-2026-53168 CVE-2026-53176                      CVE-2026-53177 CVE-2026-53181 CVE-2026-53182 CVE-2026-53183                      CVE-2026-53184 CVE-2026-53186 CVE-2026-53189 CVE-2026-53194                      CVE-2026-53195 CVE-2026-53196 CVE-2026-53198 CVE-2026-53199                      CVE-2026-53207 CVE-2026-53208 CVE-2026-53209 CVE-2026-53212                      CVE-2026-53213 CVE-2026-53215 CVE-2026-53216 CVE-2026-53217                      CVE-2026-53218 CVE-2026-53219 CVE-2026-53221 CVE-2026-53223                      CVE-2026-53225 CVE-2026-53227 CVE-2026-53228 CVE-2026-53236                      CVE-2026-53238 CVE-2026-53239 CVE-2026-53242 CVE-2026-53245                      CVE-2026-53249 CVE-2026-53252 CVE-2026-53253 CVE-2026-53254                      CVE-2026-53255 CVE-2026-53256 CVE-2026-53263 CVE-2026-53264                      CVE-2026-53266 CVE-2026-53268 CVE-2026-53269 CVE-2026-53270                      CVE-2026-53273 CVE-2026-53274 CVE-2026-53275 CVE-2026-53279                      CVE-2026-53287 CVE-2026-53289 CVE-2026-53291 CVE-2026-53294                      CVE-2026-53295 CVE-2026-53296 CVE-2026-53303 CVE-2026-53304                      CVE-2026-53306 CVE-2026-53309 CVE-2026-53314 CVE-2026-53320                      CVE-2026-53329 CVE-2026-53331 CVE-2026-53337 CVE-2026-53339                      CVE-2026-53343 CVE-2026-53349 CVE-2026-53350 CVE-2026-53352                      CVE-2026-53354 CVE-2026-53355 CVE-2026-53356 CVE-2026-53357     Debian Bug     : 1130365 1119093

    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     6.1.176-1~deb11u1.  This version additionally includes many more bug     fixes from stable updates 6.1.175 and 6.1.176.

    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     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 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4665 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4665-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                        Ben Hutchings     July 03, 2026                                 https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : linux     Version        : 6.1.176-1     CVE ID         : CVE-2023-53292 CVE-2023-53989 CVE-2023-54125 CVE-2023-54271                      CVE-2023-54322 CVE-2024-27012 CVE-2024-36922 CVE-2024-53221                      CVE-2024-56657 CVE-2025-10263 CVE-2025-21739 CVE-2025-21863                      CVE-2025-22105 CVE-2025-37864 CVE-2025-38584 CVE-2025-38627                      CVE-2025-38710 CVE-2025-39997 CVE-2025-40347 CVE-2025-68201                      CVE-2025-68315 CVE-2025-68823 CVE-2026-23066 CVE-2026-23255                      CVE-2026-23310 CVE-2026-23389 CVE-2026-23399 CVE-2026-23442                      CVE-2026-23444 CVE-2026-23468 CVE-2026-31407 CVE-2026-31449                      CVE-2026-31488 CVE-2026-31489 CVE-2026-31500 CVE-2026-31532                      CVE-2026-31576 CVE-2026-31577 CVE-2026-31578 CVE-2026-31580                      CVE-2026-31581 CVE-2026-31583 CVE-2026-31585 CVE-2026-31586                      CVE-2026-31587 CVE-2026-31588 CVE-2026-31590 CVE-2026-31594                      CVE-2026-31595 CVE-2026-31596 CVE-2026-31597 CVE-2026-31598                      CVE-2026-31599 CVE-2026-31602 CVE-2026-31603 CVE-2026-31605                      CVE-2026-31607 CVE-2026-31611 CVE-2026-31612 CVE-2026-31613                      CVE-2026-31615 CVE-2026-31616 CVE-2026-31617 CVE-2026-31618                      CVE-2026-31619 CVE-2026-31622 CVE-2026-31623 CVE-2026-31624                      CVE-2026-31625 CVE-2026-31626 CVE-2026-31627 CVE-2026-31629                      CVE-2026-31630 CVE-2026-31637 CVE-2026-31642 CVE-2026-31673                      CVE-2026-31676 CVE-2026-31681 CVE-2026-31684 CVE-2026-31685                      CVE-2026-31686 CVE-2026-31696 CVE-2026-31697 CVE-2026-31698                      CVE-2026-31699 CVE-2026-31700 CVE-2026-31701 CVE-2026-31702                      CVE-2026-31704 CVE-2026-31705 CVE-2026-31708 CVE-2026-31709                      CVE-2026-31711 CVE-2026-31712 CVE-2026-31715 CVE-2026-31716                      CVE-2026-43052 CVE-2026-43058 CVE-2026-43064 CVE-2026-43071                      CVE-2026-43072 CVE-2026-43075 CVE-2026-43076 CVE-2026-43079                      CVE-2026-43080 CVE-2026-43085 CVE-2026-43089 CVE-2026-43093                      CVE-2026-43094 CVE-2026-43098 CVE-2026-43099 CVE-2026-43103                      CVE-2026-43104 CVE-2026-43105 CVE-2026-43110 CVE-2026-43111                      CVE-2026-43112 CVE-2026-43113 CVE-2026-43114 CVE-2026-43116                      CVE-2026-43117 CVE-2026-43219 CVE-2026-43303 CVE-2026-43350                      CVE-2026-43421 CVE-2026-43492 CVE-2026-43493 CVE-2026-43494                      CVE-2026-43495 CVE-2026-43496 CVE-2026-43497 CVE-2026-43499                      CVE-2026-43501 CVE-2026-43502 CVE-2026-45834 CVE-2026-45835                      CVE-2026-45836 CVE-2026-45838 CVE-2026-45839 CVE-2026-45840                      CVE-2026-45841 CVE-2026-45842 CVE-2026-45843 CVE-2026-45844                      CVE-2026-45846 CVE-2026-45850 CVE-2026-45930 CVE-2026-45986                      CVE-2026-45987 CVE-2026-45991 CVE-2026-45994 CVE-2026-45996                      CVE-2026-45997 CVE-2026-45999 CVE-2026-46002 CVE-2026-46003                      CVE-2026-46004 CVE-2026-46005 CVE-2026-46006 CVE-2026-46009                      CVE-2026-46015 CVE-2026-46018 CVE-2026-46019 CVE-2026-46021                      CVE-2026-46022 CVE-2026-46023 CVE-2026-46024 CVE-2026-46026                      CVE-2026-46027 CVE-2026-46031 CVE-2026-46033 CVE-2026-46037                      CVE-2026-46038 CVE-2026-46040 CVE-2026-46043 CVE-2026-46044                      CVE-2026-46046 CVE-2026-46047 CVE-2026-46049 CVE-2026-46050                      CVE-2026-46051 CVE-2026-46052 CVE-2026-46053 CVE-2026-46056                      CVE-2026-46058 CVE-2026-46062 CVE-2026-46064 CVE-2026-46065                      CVE-2026-46069 CVE-2026-46070 CVE-2026-46072 CVE-2026-46075                      CVE-2026-46077 CVE-2026-46078 CVE-2026-46079 CVE-2026-46080                      CVE-2026-46082 CVE-2026-46083 CVE-2026-46086 CVE-2026-46088                      CVE-2026-46091 CVE-2026-46098 CVE-2026-46099 CVE-2026-46101                      CVE-2026-46102 CVE-2026-46103 CVE-2026-46107 CVE-2026-46108                      CVE-2026-46109 CVE-2026-46110 CVE-2026-46112 CVE-2026-46113                      CVE-2026-46116 CVE-2026-46119 CVE-2026-46120 CVE-2026-46122                      CVE-2026-46123 CVE-2026-46124 CVE-2026-46125 CVE-2026-46127                      CVE-2026-46128 CVE-2026-46129 CVE-2026-46132 CVE-2026-46133                      CVE-2026-46136 CVE-2026-46137 CVE-2026-46143 CVE-2026-46146                      CVE-2026-46149 CVE-2026-46150 CVE-2026-46151 CVE-2026-46159                      CVE-2026-46160 CVE-2026-46161 CVE-2026-46163 CVE-2026-46164                      CVE-2026-46165 CVE-2026-46167 CVE-2026-46168 CVE-2026-46169                      CVE-2026-46172 CVE-2026-46173 CVE-2026-46177 CVE-2026-46178                      CVE-2026-46179 CVE-2026-46180 CVE-2026-46184 CVE-2026-46185                      CVE-2026-46186 CVE-2026-46187 CVE-2026-46189 CVE-2026-46190                      CVE-2026-46191 CVE-2026-46193 CVE-2026-46195 CVE-2026-46196                      CVE-2026-46197 CVE-2026-46198 CVE-2026-46199 CVE-2026-46205                      CVE-2026-46206 CVE-2026-46208 CVE-2026-46209 CVE-2026-46212                      CVE-2026-46214 CVE-2026-46218 CVE-2026-46220 CVE-2026-46227                      CVE-2026-46230 CVE-2026-46231 CVE-2026-46233 CVE-2026-46234                      CVE-2026-46235 CVE-2026-46236 CVE-2026-46238 CVE-2026-46273                      CVE-2026-46275 CVE-2026-46276 CVE-2026-46280 CVE-2026-46285                      CVE-2026-46291 CVE-2026-46292 CVE-2026-46294 CVE-2026-46296                      CVE-2026-46299 CVE-2026-46301 CVE-2026-46303 CVE-2026-46304                      CVE-2026-46306 CVE-2026-46307 CVE-2026-46314 CVE-2026-46319                      CVE-2026-46320 CVE-2026-46321 CVE-2026-46322 CVE-2026-46323                      CVE-2026-46331 CVE-2026-52909 CVE-2026-52910 CVE-2026-52911                      CVE-2026-52912 CVE-2026-52913 CVE-2026-52914 CVE-2026-52915                      CVE-2026-52916 CVE-2026-52917 CVE-2026-52918 CVE-2026-52919                      CVE-2026-52920 CVE-2026-52921 CVE-2026-52922 CVE-2026-52923                      CVE-2026-52924 CVE-2026-52925 CVE-2026-52926 CVE-2026-52927                      CVE-2026-52929 CVE-2026-52930 CVE-2026-52931 CVE-2026-52933                      CVE-2026-52934 CVE-2026-52935 CVE-2026-52939 CVE-2026-52941                      CVE-2026-52942 CVE-2026-52943 CVE-2026-52946 CVE-2026-52947                      CVE-2026-52948 CVE-2026-52954 CVE-2026-52955 CVE-2026-52957                      CVE-2026-52958 CVE-2026-52962 CVE-2026-52963 CVE-2026-52967                      CVE-2026-52968 CVE-2026-52969 CVE-2026-52970 CVE-2026-52972                      CVE-2026-52974 CVE-2026-52975 CVE-2026-52977 CVE-2026-52981                      CVE-2026-52982 CVE-2026-52984 CVE-2026-52985 CVE-2026-52986                      CVE-2026-52989 CVE-2026-52992 CVE-2026-52993 CVE-2026-52995                      CVE-2026-52998 CVE-2026-52999 CVE-2026-53001 CVE-2026-53002                      CVE-2026-53003 CVE-2026-53004 CVE-2026-53006 CVE-2026-53011                      CVE-2026-53012 CVE-2026-53016 CVE-2026-53021 CVE-2026-53022                      CVE-2026-53023 CVE-2026-53033 CVE-2026-53034 CVE-2026-53035                      CVE-2026-53036 CVE-2026-53037 CVE-2026-53039 CVE-2026-53040                      CVE-2026-53041 CVE-2026-53043 CVE-2026-53045 CVE-2026-53046                      CVE-2026-53047 CVE-2026-53048 CVE-2026-53049 CVE-2026-53050                      CVE-2026-53052 CVE-2026-53056 CVE-2026-53059 CVE-2026-53060                      CVE-2026-53061 CVE-2026-53062 CVE-2026-53063 CVE-2026-53064                      CVE-2026-53065 CVE-2026-53066 CVE-2026-53068 CVE-2026-53069                      CVE-2026-53071 CVE-2026-53072 CVE-2026-53073 CVE-2026-53074                      CVE-2026-53075 CVE-2026-53077 CVE-2026-53080 CVE-2026-53082                      CVE-2026-53086 CVE-2026-53088 CVE-2026-53093 CVE-2026-53096                      CVE-2026-53111 CVE-2026-53112 CVE-2026-53128 CVE-2026-53130                      CVE-2026-53131 CVE-2026-53133 CVE-2026-53134 CVE-2026-53135                      CVE-2026-53136 CVE-2026-53137 CVE-2026-53146 CVE-2026-53147                      CVE-2026-53148 CVE-2026-53149 CVE-2026-53150 CVE-2026-53159                      CVE-2026-53160 CVE-2026-53161 CVE-2026-53168 CVE-2026-53176                      CVE-2026-53177 CVE-2026-53181 CVE-2026-53182 CVE-2026-53183                      CVE-2026-53184 CVE-2026-53186 CVE-2026-53189 CVE-2026-53194                      CVE-2026-53195 CVE-2026-53196 CVE-2026-53198 CVE-2026-53199                      CVE-2026-53207 CVE-2026-53208 CVE-2026-53209 CVE-2026-53212                      CVE-2026-53213 CVE-2026-53215 CVE-2026-53216 CVE-2026-53217                      CVE-2026-53218 CVE-2026-53219 CVE-2026-53221 CVE-2026-53223                      CVE-2026-53225 CVE-2026-53227 CVE-2026-53228 CVE-2026-53236                      CVE-2026-53238 CVE-2026-53239 CVE-2026-53242 CVE-2026-53245                      CVE-2026-53249 CVE-2026-53252 CVE-2026-53253 CVE-2026-53254                      CVE-2026-53255 CVE-2026-53256 CVE-2026-53263 CVE-2026-53264                      CVE-2026-53266 CVE-2026-53268 CVE-2026-53269 CVE-2026-53270                      CVE-2026-53273 CVE-2026-53274 CVE-2026-53275 CVE-2026-53279                      CVE-2026-53287 CVE-2026-53289 CVE-2026-53291 CVE-2026-53294                      CVE-2026-53295 CVE-2026-53296 CVE-2026-53303 CVE-2026-53304                      CVE-2026-53306 CVE-2026-53309 CVE-2026-53314 CVE-2026-53320                      CVE-2026-53329 CVE-2026-53331 CVE-2026-53337 CVE-2026-53339                      CVE-2026-53343 CVE-2026-53349 CVE-2026-53350 CVE-2026-53352                      CVE-2026-53354 CVE-2026-53355 CVE-2026-53356 CVE-2026-53357     Debian Bug     : 1130365 1119093

    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     6.1.176-1.  This version additionally includes many more bug fixes     from stable updates 6.1.175 and 6.1.176.

    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-4664 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4664-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                        Ben Hutchings     July 03, 2026                                 https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : linux     Version        : 5.10.259-1     CVE ID         : CVE-2021-47188 CVE-2021-47211 CVE-2022-48703 CVE-2022-49135                      CVE-2022-49158 CVE-2022-49183 CVE-2022-49822 CVE-2022-50073                      CVE-2022-50472 CVE-2022-50493 CVE-2022-50552 CVE-2023-53133                      CVE-2023-53421 CVE-2023-53596 CVE-2023-54129 CVE-2024-43902                      CVE-2025-10263 CVE-2025-21863 CVE-2025-22026 CVE-2025-22107                      CVE-2025-38129 CVE-2025-38250 CVE-2025-38584 CVE-2025-38710                      CVE-2025-39929 CVE-2025-40164 CVE-2025-68340 CVE-2026-23066                      CVE-2026-23099 CVE-2026-23442 CVE-2026-23444 CVE-2026-31407                      CVE-2026-31449 CVE-2026-31489 CVE-2026-31532 CVE-2026-31576                      CVE-2026-31577 CVE-2026-31578 CVE-2026-31580 CVE-2026-31581                      CVE-2026-31583 CVE-2026-31585 CVE-2026-31586 CVE-2026-31588                      CVE-2026-31590 CVE-2026-31596 CVE-2026-31597 CVE-2026-31598                      CVE-2026-31599 CVE-2026-31602 CVE-2026-31603 CVE-2026-31605                      CVE-2026-31607 CVE-2026-31615 CVE-2026-31616 CVE-2026-31617                      CVE-2026-31618 CVE-2026-31619 CVE-2026-31622 CVE-2026-31623                      CVE-2026-31624 CVE-2026-31625 CVE-2026-31626 CVE-2026-31627                      CVE-2026-31629 CVE-2026-31630 CVE-2026-31634 CVE-2026-31637                      CVE-2026-31642 CVE-2026-31656 CVE-2026-31657 CVE-2026-31664                      CVE-2026-31673 CVE-2026-31676 CVE-2026-31681 CVE-2026-31684                      CVE-2026-31685 CVE-2026-31686 CVE-2026-31696 CVE-2026-31697                      CVE-2026-31698 CVE-2026-31699 CVE-2026-31700 CVE-2026-31701                      CVE-2026-31708 CVE-2026-31715 CVE-2026-43052 CVE-2026-43058                      CVE-2026-43075 CVE-2026-43076 CVE-2026-43080 CVE-2026-43085                      CVE-2026-43089 CVE-2026-43093 CVE-2026-43103 CVE-2026-43104                      CVE-2026-43105 CVE-2026-43110 CVE-2026-43111 CVE-2026-43113                      CVE-2026-43114 CVE-2026-43117 CVE-2026-43281 CVE-2026-43350                      CVE-2026-43492 CVE-2026-43493 CVE-2026-43494 CVE-2026-43496                      CVE-2026-43497 CVE-2026-43501 CVE-2026-43502 CVE-2026-45834                      CVE-2026-45835 CVE-2026-45836 CVE-2026-45838 CVE-2026-45840                      CVE-2026-45841 CVE-2026-45842 CVE-2026-45843 CVE-2026-45844                      CVE-2026-45846 CVE-2026-45850 CVE-2026-45986 CVE-2026-45987                      CVE-2026-45991 CVE-2026-45994 CVE-2026-46002 CVE-2026-46003                      CVE-2026-46004 CVE-2026-46006 CVE-2026-46018 CVE-2026-46019                      CVE-2026-46021 CVE-2026-46022 CVE-2026-46023 CVE-2026-46026                      CVE-2026-46027 CVE-2026-46033 CVE-2026-46038 CVE-2026-46040                      CVE-2026-46043 CVE-2026-46044 CVE-2026-46046 CVE-2026-46047                      CVE-2026-46049 CVE-2026-46051 CVE-2026-46052 CVE-2026-46053                      CVE-2026-46056 CVE-2026-46064 CVE-2026-46069 CVE-2026-46070                      CVE-2026-46077 CVE-2026-46078 CVE-2026-46080 CVE-2026-46086                      CVE-2026-46088 CVE-2026-46090 CVE-2026-46091 CVE-2026-46098                      CVE-2026-46101 CVE-2026-46102 CVE-2026-46103 CVE-2026-46107                      CVE-2026-46108 CVE-2026-46109 CVE-2026-46120 CVE-2026-46122                      CVE-2026-46124 CVE-2026-46127 CVE-2026-46128 CVE-2026-46132                      CVE-2026-46133 CVE-2026-46137 CVE-2026-46146 CVE-2026-46149                      CVE-2026-46150 CVE-2026-46151 CVE-2026-46159 CVE-2026-46160                      CVE-2026-46161 CVE-2026-46163 CVE-2026-46167 CVE-2026-46169                      CVE-2026-46172 CVE-2026-46177 CVE-2026-46178 CVE-2026-46180                      CVE-2026-46184 CVE-2026-46187 CVE-2026-46189 CVE-2026-46191                      CVE-2026-46196 CVE-2026-46198 CVE-2026-46205 CVE-2026-46206                      CVE-2026-46208 CVE-2026-46209 CVE-2026-46212 CVE-2026-46214                      CVE-2026-46220 CVE-2026-46227 CVE-2026-46231 CVE-2026-46233                      CVE-2026-46234 CVE-2026-46236 CVE-2026-46238 CVE-2026-46275                      CVE-2026-46276 CVE-2026-46285 CVE-2026-46291 CVE-2026-46292                      CVE-2026-46294 CVE-2026-46299 CVE-2026-46301 CVE-2026-46303                      CVE-2026-46304 CVE-2026-46307 CVE-2026-46319 CVE-2026-46320                      CVE-2026-46321 CVE-2026-46322 CVE-2026-52909 CVE-2026-52910                      CVE-2026-52912 CVE-2026-52913 CVE-2026-52914 CVE-2026-52915                      CVE-2026-52916 CVE-2026-52917 CVE-2026-52918 CVE-2026-52919                      CVE-2026-52920 CVE-2026-52921 CVE-2026-52922 CVE-2026-52923                      CVE-2026-52924 CVE-2026-52925 CVE-2026-52926 CVE-2026-52927                      CVE-2026-52929 CVE-2026-52930 CVE-2026-52931 CVE-2026-52934                      CVE-2026-52935 CVE-2026-52939 CVE-2026-52943 CVE-2026-52946                      CVE-2026-52947 CVE-2026-52948 CVE-2026-52954 CVE-2026-52955                      CVE-2026-52957 CVE-2026-52958 CVE-2026-52962 CVE-2026-52963                      CVE-2026-52970 CVE-2026-52972 CVE-2026-52982 CVE-2026-52984                      CVE-2026-52985 CVE-2026-52986 CVE-2026-52992 CVE-2026-52993                      CVE-2026-52995 CVE-2026-52998 CVE-2026-52999 CVE-2026-53001                      CVE-2026-53002 CVE-2026-53003 CVE-2026-53004 CVE-2026-53006                      CVE-2026-53011 CVE-2026-53012 CVE-2026-53016 CVE-2026-53021                      CVE-2026-53037 CVE-2026-53039 CVE-2026-53040 CVE-2026-53041                      CVE-2026-53043 CVE-2026-53045 CVE-2026-53047 CVE-2026-53050                      CVE-2026-53059 CVE-2026-53060 CVE-2026-53061 CVE-2026-53062                      CVE-2026-53064 CVE-2026-53065 CVE-2026-53068 CVE-2026-53071                      CVE-2026-53072 CVE-2026-53073 CVE-2026-53074 CVE-2026-53075                      CVE-2026-53077 CVE-2026-53080 CVE-2026-53082 CVE-2026-53088                      CVE-2026-53093 CVE-2026-53112 CVE-2026-53128 CVE-2026-53130                      CVE-2026-53133 CVE-2026-53134 CVE-2026-53135 CVE-2026-53137                      CVE-2026-53146 CVE-2026-53148 CVE-2026-53149 CVE-2026-53150                      CVE-2026-53161 CVE-2026-53168 CVE-2026-53176 CVE-2026-53181                      CVE-2026-53186 CVE-2026-53189 CVE-2026-53194 CVE-2026-53195                      CVE-2026-53196 CVE-2026-53199 CVE-2026-53208 CVE-2026-53212                      CVE-2026-53217 CVE-2026-53218 CVE-2026-53219 CVE-2026-53221                      CVE-2026-53223 CVE-2026-53225 CVE-2026-53227 CVE-2026-53228                      CVE-2026-53238 CVE-2026-53239 CVE-2026-53242 CVE-2026-53245                      CVE-2026-53249 CVE-2026-53255 CVE-2026-53256 CVE-2026-53263                      CVE-2026-53264 CVE-2026-53266 CVE-2026-53268 CVE-2026-53269                      CVE-2026-53270 CVE-2026-53273 CVE-2026-53287 CVE-2026-53294                      CVE-2026-53295 CVE-2026-53296 CVE-2026-53304 CVE-2026-53309                      CVE-2026-53320 CVE-2026-53337 CVE-2026-53339 CVE-2026-53352                      CVE-2026-53354 CVE-2026-53355 CVE-2026-53356 CVE-2026-53357     Debian Bug     : 1130365 1119093

    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     5.10.259-1.  This version additionally includes many more bug fixes     from stable updates 5.10.258 and 5.10.259.

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

  - net/sched: cls_fw: fix NULL dereference of old filters before change() Like pointed out by Sashiko [1],     since commit ed76f5edccc9 (net: sched: protect filter_chain list with filter_chain_lock mutex) TC     filters are added to a shared block and published to datapath before their ->change() function is called.
    This is a problem for cls_fw: an invalid filter created with the old method can still classify some     packets before it is destroyed by the validation logic added by Xiang. Therefore, insisting with repeated     runs of the following script: # ip link add dev crash0 type dummy # ip link set dev crash0 up # mausezahn     crash0 -c 100000 -P 10 \ > -A 4.3.2.1 -B 1.2.3.4 -t udp dp=1234 -q & # sleep 1 # tc qdisc add dev crash0     egress_block 1 clsact # tc filter add block 1 protocol ip prio 1 matchall \ > action skbedit mark 65536     continue # tc filter add block 1 protocol ip prio 2 fw # ip link del dev crash0 can still make     fw_classify() hit the WARN_ON() in [2]: WARNING: ./include/net/pkt_cls.h:88 at fw_classify+0x244/0x250     [cls_fw], CPU#18: mausezahn/1399 Modules linked in: cls_fw(E) act_skbedit(E) CPU: 18 UID: 0 PID: 1399     Comm: mausezahn Tainted: G E 7.0.0-rc6-virtme #17 PREEMPT(full) Tainted: [E]=UNSIGNED_MODULE Hardware     name: Red Hat KVM, BIOS 1.16.3-2.el9 04/01/2014 RIP: 0010:fw_classify+0x244/0x250 [cls_fw] Code: 5c 49 c7     45 00 00 00 00 00 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 5b b8 ff ff ff ff 41 5c 41 5d 41 5e 41 5f 5d c3 cc     cc cc cc 90 <0f> 0b 90 eb a0 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffd1b7026bf8a8     EFLAGS: 00010202 RAX: ffff8c5ac9c60800 RBX: ffff8c5ac99322c0 RCX: 0000000000000004 RDX: 0000000000000001     RSI: ffff8c5b74d7a000 RDI: ffff8c5ac8284f40 RBP: ffffd1b7026bf8d0 R08: 0000000000000000 R09:
    ffffd1b7026bf9b0 R10: 00000000ffffffff R11: 0000000000000000 R12: 0000000000010000 R13: ffffd1b7026bf930     R14: ffff8c5ac8284f40 R15: 0000000000000000 FS: 00007fca40c37740(0000) GS:ffff8c5b74d7a000(0000)     knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fca40e822a0 CR3:
    0000000005ca0001 CR4: 0000000000172ef0 Call Trace: <TASK> tcf_classify+0x17d/0x5c0 tc_run+0x9d/0x150
    __dev_queue_xmit+0x2ab/0x14d0 ip_finish_output2+0x340/0x8f0 ip_output+0xa4/0x250 raw_sendmsg+0x147d/0x14b0
    __sys_sendto+0x1cc/0x1f0 __x64_sys_sendto+0x24/0x30 do_syscall_64+0x126/0xf80     entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fca40e822ba Code: d8 64 89 02 48 c7 c0 ff ff ff ff     eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0     ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89 RSP: 002b:00007ffc248a42c8 EFLAGS: 00000246     ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 000055ef233289d0 RCX: 00007fca40e822ba RDX:
    000000000000001e RSI: 000055ef23328c30 RDI: 0000000000000003 RBP: 000055ef233289d0 R08: 00007ffc248a42d0     R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000001e R13:
    00000000000186a0 R14: 0000000000000000 R15: 00007fca41043000 </TASK> irq event stamp: 1045778 hardirqs     last enabled at (1045784): [<ffffffff864ec042>] __up_console_sem+0x52/0x60 hardirqs last disabled at     (1045789): [<ffffffff864ec027>] __up_console_sem+0x37/0x60 softirqs last enabled at (1045426):
    [<ffffffff874d48c7>] __alloc_skb+0x207/0x260 softirqs last disabled at (1045434): [<ffffffff874fe8f8>]
    __dev_queue_xmit+0x78/0x14d0 Then, because of the value in the packet's mark, dereference on 'q->handle'     with NULL 'q' occurs: BUG: kernel NULL pointer dereference, address: 0000000000000038 [...] RIP:
    0010:fw_classify+0x1fe/0x250 [cls_fw] [...] Skip old-style classification on shared blocks, so that the     NULL dereference is fixed and WARN_ON() is not hit anymore in the short lifetime of invalid cls_fw old-     style filters. [1] https://sashiko.dev/#/patchset/2 ---truncated--- (CVE-2026-53080)

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

The version of kernel installed on the remote host is prior to 5.15.204-143.229. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2026-108 advisory.

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

    ext4: drop extent cache when splitting extent fails (CVE-2026-45899)

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

    ext4: fix dirtyclusters double decrement on fs shutdown (CVE-2026-45920)

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

    ext4: don't set EXT4_GET_BLOCKS_CONVERT when splitting before submitting I/O (CVE-2026-45985)

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

    net/sched: cls_fw: fix NULL dereference of old filters before change() (CVE-2026-53080)

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.

ID	Name	Product	Family	Severity
327399	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-1935)	Nessus	Amazon Linux Local Security Checks	medium
327398	Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-1934)	Nessus	Amazon Linux Local Security Checks	medium
326306	Photon OS 4.0: Linux PHSA-2026-4.0-1054	Nessus	PhotonOS Local Security Checks	high
325574	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2026-124 (ALASKERNEL-5.10-2026-124)	Nessus	Amazon Linux Local Security Checks	high
325283	Debian dla-4671 : linux-config-6.1 - security update	Nessus	Debian Local Security Checks	high
325059	Debian dla-4665 : affs-modules-6.1.0-48-4kc-malta-di - security update	Nessus	Debian Local Security Checks	high
325018	Debian dla-4664 : ata-modules-5.10.0-43-armmp-di - security update	Nessus	Debian Local Security Checks	high
323389	Photon OS 5.0: Linux PHSA-2026-5.0-0904	Nessus	PhotonOS Local Security Checks	high
322688	Linux Distros Unpatched Vulnerability : CVE-2026-53080	Nessus	Misc.	medium
322072	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2026-108 (ALASKERNEL-5.15-2026-108)	Nessus	Amazon Linux Local Security Checks	high
316948	Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1746)	Nessus	Amazon Linux Local Security Checks	high

Detections

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CVE-2026-53080

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