The version of kernel installed on the remote host is prior to 5.15.182-123.190. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2025-072 advisory.

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

    scsi: target: Fix WRITE_SAME No Data Buffer crash

    In newer version of the SBC specs, we have a NDOB bit that indicates thereis no data buffer that gets     written out. If this bit is set using commandslike sg_write_same --ndob we will crash in     target_core_iblock/file'sexecute_write_same handlers when we go to access the se_cmd->t_data_sgbecause its     NULL.

    This patch adds a check for the NDOB bit in the common WRITE SAME codebecause we don't support it. And, it     adds a check for zero SG elements ineach handler in case the initiator tries to send a normal WRITE SAME     withno data buffer. (CVE-2022-21546)

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

    drm/i915/gt: Cleanup partial engine discovery failures (CVE-2022-48893)

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

    cifs: Fix UAF in cifs_demultiplex_thread() (CVE-2023-52572)

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

    bpf: Check rcu_read_lock_trace_held() before calling bpf map helpers (CVE-2023-52621)

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

    smb: client: fix use-after-free bug in cifs_debug_data_proc_show() (CVE-2023-52752)

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

    smb: client: fix potential deadlock when releasing mids (CVE-2023-52757)

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

    fs/proc: do_task_stat: use sig->stats_lock to gather the threads/children stats (CVE-2024-26686)

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

    net/sched: act_mirred: don't override retval if we already lost the skb (CVE-2024-26739)

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

    smb: client: fix potential UAF in cifs_dump_full_key() (CVE-2024-35866)

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

    smb: client: fix potential UAF in cifs_stats_proc_show() (CVE-2024-35867)

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

    blk-iocost: do not WARN if iocg was already offlined (CVE-2024-36908)

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

    of: module: add buffer overflow check in of_modalias() (CVE-2024-38541)

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

    smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open() (CVE-2024-46742)

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

    net: mana: Fix error handling in mana_create_txq/rxq's NAPI cleanup (CVE-2024-46784)

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

    smb: client: fix UAF in async decryption (CVE-2024-50047)

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

    net: fix crash when config small gso_max_size/gso_ipv4_max_size (CVE-2024-50258)

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

    filemap: Fix bounds checking in filemap_read() (CVE-2024-50272)

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

    dm cache: fix flushing uninitialized delayed_work on cache_ctr error (CVE-2024-50280)

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

    sched/task_stack: fix object_is_on_stack() for KASAN tagged pointers (CVE-2024-53128)

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

    wifi: ath10k: avoid NULL pointer error during sdio remove (CVE-2024-56599)

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

    ipv6: release nexthop on device removal

    The CI is hitting some aperiodic hangup at device removal time in thepmtu.sh self-test:

    unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 6ref_tracker:
    veth_A-R1@ffff888013df15d8 has 1/5 users atdst_init+0x84/0x4a0dst_alloc+0x97/0x150ip6_dst_alloc+0x23/0x90i     p6_rt_pcpu_alloc+0x1e6/0x520ip6_pol_route+0x56f/0x840fib6_rule_lookup+0x334/0x630ip6_route_output_flags+0x     259/0x480ip6_dst_lookup_tail.constprop.0+0x5c2/0x940ip6_dst_lookup_flow+0x88/0x190udp_tunnel6_dst_lookup+0     x2a7/0x4c0vxlan_xmit_one+0xbde/0x4a50 [vxlan]vxlan_xmit+0x9ad/0xf20 [vxlan]dev_hard_start_xmit+0x10e/0x360
    __dev_queue_xmit+0xf95/0x18c0arp_solicit+0x4a2/0xe00neigh_probe+0xaa/0xf0

    While the first suspect is the dst_cache, explicitly tracking the dstowing the last device reference via     probes proved such dst is held bythe nexthop in the originating fib6_info.

    Similar to commit f5b51fe804ec (ipv6: route: purge exception onremoval), we need to explicitly release     the originating fib info whendisconnecting a to-be-removed device from a live ipv6 dst: move thefib6_info     cleanup into ip6_dst_ifdown().

    Tested running:

    ./pmtu.sh cleanup_ipv6_exception

    in a tight loop for more than 400 iterations with no spat, running anunpatched kernel  I observed a splat     every ~10 iterations. (CVE-2024-56751)

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

    bpf: avoid holding freeze_mutex during mmap operation (CVE-2025-21853)

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

    nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu() (CVE-2025-21927)

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.

Detections

Analytics

Amazon Linux 2 : kernel (ALASKERNEL-5.15-2025-072)

high Nessus Plugin ID 237508

Version 1.1