In the Linux kernel, the following vulnerability has been resolved: netlink: annotate lockless accesses to nlk->max_recvmsg_len syzbot reported a data-race in data-race in netlink_recvmsg() [1] Indeed, netlink_recvmsg() can be run concurrently, and netlink_dump() also needs protection. [1] BUG: KCSAN: data-race in netlink_recvmsg / netlink_recvmsg read to 0xffff888141840b38 of 8 bytes by task 23057 on cpu 0: netlink_recvmsg+0xea/0x730 net/netlink/af_netlink.c:1988 sock_recvmsg_nosec net/socket.c:1017 [inline] sock_recvmsg net/socket.c:1038 [inline] __sys_recvfrom+0x1ee/0x2e0 net/socket.c:2194 __do_sys_recvfrom net/socket.c:2212 [inline] __se_sys_recvfrom net/socket.c:2208 [inline] __x64_sys_recvfrom+0x78/0x90 net/socket.c:2208 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd write to 0xffff888141840b38 of 8 bytes by task 23037 on cpu 1: netlink_recvmsg+0x114/0x730 net/netlink/af_netlink.c:1989 sock_recvmsg_nosec net/socket.c:1017 [inline] sock_recvmsg net/socket.c:1038 [inline] ____sys_recvmsg+0x156/0x310 net/socket.c:2720 ___sys_recvmsg net/socket.c:2762 [inline] do_recvmmsg+0x2e5/0x710 net/socket.c:2856 __sys_recvmmsg net/socket.c:2935 [inline] __do_sys_recvmmsg net/socket.c:2958 [inline] __se_sys_recvmmsg net/socket.c:2951 [inline] __x64_sys_recvmmsg+0xe2/0x160 net/socket.c:2951 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x0000000000000000 -> 0x0000000000001000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 23037 Comm: syz-executor.2 Not tainted 6.3.0-rc4-syzkaller-00195-g5a57b48fdfcb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011332 advisory.

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

    netlink: annotate lockless accesses to nlk->max_recvmsg_len

    syzbot reported a data-race in data-race in netlink_recvmsg() [1]

    Indeed, netlink_recvmsg() can be run concurrently,     and netlink_dump() also needs protection.

    [1]     BUG: KCSAN: data-race in netlink_recvmsg / netlink_recvmsg

    read to 0xffff888141840b38 of 8 bytes by task 23057 on cpu 0:
    netlink_recvmsg+0xea/0x730 net/netlink/af_netlink.c:1988     sock_recvmsg_nosec net/socket.c:1017 [inline]     sock_recvmsg net/socket.c:1038 [inline]
    __sys_recvfrom+0x1ee/0x2e0 net/socket.c:2194
    __do_sys_recvfrom net/socket.c:2212 [inline]
    __se_sys_recvfrom net/socket.c:2208 [inline]
    __x64_sys_recvfrom+0x78/0x90 net/socket.c:2208     do_syscall_x64 arch/x86/entry/common.c:50 [inline]     do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80     entry_SYSCALL_64_after_hwframe+0x63/0xcd

    write to 0xffff888141840b38 of 8 bytes by task 23037 on cpu 1:
    netlink_recvmsg+0x114/0x730 net/netlink/af_netlink.c:1989     sock_recvmsg_nosec net/socket.c:1017 [inline]     sock_recvmsg net/socket.c:1038 [inline]
    ____sys_recvmsg+0x156/0x310 net/socket.c:2720
    ___sys_recvmsg net/socket.c:2762 [inline]     do_recvmmsg+0x2e5/0x710 net/socket.c:2856
    __sys_recvmmsg net/socket.c:2935 [inline]
    __do_sys_recvmmsg net/socket.c:2958 [inline]
    __se_sys_recvmmsg net/socket.c:2951 [inline]
    __x64_sys_recvmmsg+0xe2/0x160 net/socket.c:2951     do_syscall_x64 arch/x86/entry/common.c:50 [inline]     do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80     entry_SYSCALL_64_after_hwframe+0x63/0xcd

    value changed: 0x0000000000000000 -> 0x0000000000001000

    Reported by Kernel Concurrency Sanitizer on:
    CPU: 1 PID: 23037 Comm: syz-executor.2 Not tainted 6.3.0-rc4-syzkaller-00195-g5a57b48fdfcb #0     Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023

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

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

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013000 advisory.

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

    netlink: annotate lockless accesses to nlk->max_recvmsg_len

    syzbot reported a data-race in data-race in netlink_recvmsg() [1]

    Indeed, netlink_recvmsg() can be run concurrently,     and netlink_dump() also needs protection.

    [1]     BUG: KCSAN: data-race in netlink_recvmsg / netlink_recvmsg

    read to 0xffff888141840b38 of 8 bytes by task 23057 on cpu 0:
    netlink_recvmsg+0xea/0x730 net/netlink/af_netlink.c:1988     sock_recvmsg_nosec net/socket.c:1017 [inline]     sock_recvmsg net/socket.c:1038 [inline]
    __sys_recvfrom+0x1ee/0x2e0 net/socket.c:2194
    __do_sys_recvfrom net/socket.c:2212 [inline]
    __se_sys_recvfrom net/socket.c:2208 [inline]
    __x64_sys_recvfrom+0x78/0x90 net/socket.c:2208     do_syscall_x64 arch/x86/entry/common.c:50 [inline]     do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80     entry_SYSCALL_64_after_hwframe+0x63/0xcd

    write to 0xffff888141840b38 of 8 bytes by task 23037 on cpu 1:
    netlink_recvmsg+0x114/0x730 net/netlink/af_netlink.c:1989     sock_recvmsg_nosec net/socket.c:1017 [inline]     sock_recvmsg net/socket.c:1038 [inline]
    ____sys_recvmsg+0x156/0x310 net/socket.c:2720
    ___sys_recvmsg net/socket.c:2762 [inline]     do_recvmmsg+0x2e5/0x710 net/socket.c:2856
    __sys_recvmmsg net/socket.c:2935 [inline]
    __do_sys_recvmmsg net/socket.c:2958 [inline]
    __se_sys_recvmmsg net/socket.c:2951 [inline]
    __x64_sys_recvmmsg+0xe2/0x160 net/socket.c:2951     do_syscall_x64 arch/x86/entry/common.c:50 [inline]     do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80     entry_SYSCALL_64_after_hwframe+0x63/0xcd

    value changed: 0x0000000000000000 -> 0x0000000000001000

    Reported by Kernel Concurrency Sanitizer on:
    CPU: 1 PID: 23037 Comm: syz-executor.2 Not tainted 6.3.0-rc4-syzkaller-00195-g5a57b48fdfcb #0     Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023

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

Note that Nessus has not tested for this issue 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.

  - netlink: annotate lockless accesses to nlk->max_recvmsg_len syzbot reported a data-race in data-race in     netlink_recvmsg() [1] Indeed, netlink_recvmsg() can be run concurrently, and netlink_dump() also needs     protection. [1] BUG: KCSAN: data-race in netlink_recvmsg / netlink_recvmsg read to 0xffff888141840b38 of 8     bytes by task 23057 on cpu 0: netlink_recvmsg+0xea/0x730 net/netlink/af_netlink.c:1988 sock_recvmsg_nosec     net/socket.c:1017 [inline] sock_recvmsg net/socket.c:1038 [inline] __sys_recvfrom+0x1ee/0x2e0     net/socket.c:2194 __do_sys_recvfrom net/socket.c:2212 [inline] __se_sys_recvfrom net/socket.c:2208     [inline] __x64_sys_recvfrom+0x78/0x90 net/socket.c:2208 do_syscall_x64 arch/x86/entry/common.c:50 [inline]     do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd write to     0xffff888141840b38 of 8 bytes by task 23037 on cpu 1: netlink_recvmsg+0x114/0x730     net/netlink/af_netlink.c:1989 sock_recvmsg_nosec net/socket.c:1017 [inline] sock_recvmsg net/socket.c:1038     [inline] ____sys_recvmsg+0x156/0x310 net/socket.c:2720 ___sys_recvmsg net/socket.c:2762 [inline]     do_recvmmsg+0x2e5/0x710 net/socket.c:2856 __sys_recvmmsg net/socket.c:2935 [inline] __do_sys_recvmmsg     net/socket.c:2958 [inline] __se_sys_recvmmsg net/socket.c:2951 [inline] __x64_sys_recvmmsg+0xe2/0x160     net/socket.c:2951 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0     arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x0000000000000000 ->     0x0000000000001000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 23037 Comm: syz-executor.2 Not     tainted 6.3.0-rc4-syzkaller-00195-g5a57b48fdfcb #0 Hardware name: Google Google Compute Engine/Google     Compute Engine, BIOS Google 03/02/2023 (CVE-2023-53824)

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

An update of the linux package has been released.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-169 advisory.

    An out-of-bounds memory access flaw was found in the Linux kernel's XFS file system in how a user restores     an XFS image after failure (with a dirty log journal). This flaw allows a local user to crash or     potentially escalate their privileges on the system. (CVE-2023-2124)

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

    skbuff: Fix a race between coalescing and releasing SKBs (CVE-2023-53186)

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

    net: openvswitch: fix race on port output (CVE-2023-53188)

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

    raw: Fix NULL deref in raw_get_next(). (CVE-2023-53198)

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

    nfsd: call op_release, even when op_func returns an error (CVE-2023-53241)

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

    Drivers: vmbus: Check for channel allocation before looking up relids (CVE-2023-53273)

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

    sctp: check send stream number after wait_for_sndbuf (CVE-2023-53296)

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

    sctp: fix a potential overflow in sctp_ifwdtsn_skip (CVE-2023-53372)

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

    tracing: Free error logs of tracing instances (CVE-2023-53375)

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

    cgroup,freezer: hold cpu_hotplug_lock before freezer_mutex (CVE-2023-53522)

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

    RDMA/cma: Allow UD qp_type to join multicast only (CVE-2023-53525)

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

    mm/swap: fix swap_info_struct race between swapoff and get_swap_pages() (CVE-2023-53623)

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

    bpf, arm64: Fixed a BTI error on returning to patched function (CVE-2023-53634)

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

    NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL (CVE-2023-53680)

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

    netlink: annotate lockless accesses to nlk->max_recvmsg_len (CVE-2023-53824)

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

    ping: Fix potentail NULL deref for /proc/net/icmp. (CVE-2023-53987)

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

    RDMA/core: Fix GID entry ref leak when create_ah fails (CVE-2023-54003)

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

    io_uring: fix memory leak when removing provided buffers (CVE-2023-54041)

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

    fs: drop peer group ids under namespace lock (CVE-2023-54128)

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

    mptcp: stricter state check in mptcp_worker (CVE-2023-54176)

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

    drm/i915: fix race condition UAF in i915_perf_add_config_ioctl (CVE-2023-54202)

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

    ipv6: Fix an uninit variable access bug in __ip6_make_skb() (CVE-2023-54265)

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
309011	Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-011332)	Nessus	Unity Linux Local Security Checks	medium
307802	Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013000)	Nessus	Unity Linux Local Security Checks	medium
301628	EulerOS 2.0 SP13 : kernel (EulerOS-SA-2026-1280)	Nessus	Huawei Local Security Checks	high
301595	EulerOS 2.0 SP13 : kernel (EulerOS-SA-2026-1244)	Nessus	Huawei Local Security Checks	high
277950	Linux Distros Unpatched Vulnerability : CVE-2023-53824	Nessus	Misc.	medium
203644	Photon OS 4.0: Linux PHSA-2024-4.0-0640	Nessus	PhotonOS Local Security Checks	high
175085	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2023-169)	Nessus	Amazon Linux Local Security Checks	high

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