In the Linux kernel, the following vulnerability has been resolved: samples/bpf: Fix buffer overflow in tcp_basertt Using sizeof(nv) or strlen(nv)+1 is correct.

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1778266904 advisory.

  - In the Linux kernel, the following vulnerability has been resolved: samples/landlock: Fix path_list memory     leak Clang static analysis reports this error sandboxer.c:134:8: warning: Potential leak of memory pointed     to by 'path_list' ret = 0; ^ path_list is allocated in parse_path() but never freed. (CVE-2021-47654)

  - In the Linux kernel, the following vulnerability has been resolved: tty: synclink_gt: Fix null-pointer-     dereference in slgt_clean() When the driver fails at alloc_hdlcdev(), and then we remove the driver     module, we will get the following splat: [ 25.065966] general protection fault, probably for non-canonical     address 0xdffffc0000000182: 0000 [#1] PREEMPT SMP KASAN PTI [ 25.066914] KASAN: null-ptr-deref in range     [0x0000000000000c10-0x0000000000000c17] [ 25.069262] RIP: 0010:detach_hdlc_protocol+0x2a/0x3e0 [     25.077709] Call Trace: [ 25.077924] <TASK> [ 25.078108] unregister_hdlc_device+0x16/0x30 [ 25.078481]     slgt_cleanup+0x157/0x9f0 [synclink_gt] Fix this by checking whether the 'info->netdev' is a null pointer     first. (CVE-2022-49307)

  - In the Linux kernel, the following vulnerability has been resolved: ima: Fix potential memory leak in     ima_init_crypto() On failure to allocate the SHA1 tfm, IMA fails to initialize and exits without freeing     the ima_algo_array. Add the missing kfree() for ima_algo_array to avoid the potential memory leak.
    (CVE-2022-49627)

  - In the Linux kernel, the following vulnerability has been resolved: tracing/histograms: Fix memory leak     problem This reverts commit 46bbe5c671e06f070428b9be142cc4ee5cedebac. As commit 46bbe5c671e0 (tracing:
    fix double free) said, the double free problem reported by clang static analyzer is: > In     parse_var_defs() if there is a problem allocating > var_defs.expr, the earlier var_defs.name is freed. >     This free is duplicated by free_var_defs() which frees > the rest of the list. However, if there is a     problem allocating N-th var_defs.expr: + in parse_var_defs(), the freed 'earlier var_defs.name' is     actually the N-th var_defs.name; + then in free_var_defs(), the names from 0th to (N-1)-th are freed; IF     ALLOCATING PROBLEM HAPPENED HERE!!! -+ \ | 0th 1th (N-1)-th N-th V     +-------------+-------------+-----+-------------+----------- var_defs: | name | expr | name | expr | ... |     name | expr | name | /// +-------------+-------------+-----+-------------+----------- These two frees     don't act on same name, so there was no double free problem before. Conversely, after that commit, we     get a memory leak problem because the above N-th var_defs.name is not freed. If enable     CONFIG_DEBUG_KMEMLEAK and inject a fault at where the N-th var_defs.expr allocated, then execute on shell     like: $ echo 'hist:key=call_site:val=$v1,$v2:v1=bytes_req,v2=bytes_alloc' > \     /sys/kernel/debug/tracing/events/kmem/kmalloc/trigger Then kmemleak reports: unreferenced object     0xffff8fb100ef3518 (size 8): comm bash, pid 196, jiffies 4295681690 (age 28.538s) hex dump (first 8     bytes): 76 31 00 00 b1 8f ff ff v1...... backtrace: [<0000000038fe4895>] kstrdup+0x2d/0x60     [<00000000c99c049a>] event_hist_trigger_parse+0x206f/0x20e0 [<00000000ae70d2cc>]     trigger_process_regex+0xc0/0x110 [<0000000066737a4c>] event_trigger_write+0x75/0xd0 [<000000007341e40c>]     vfs_write+0xbb/0x2a0 [<0000000087fde4c2>] ksys_write+0x59/0xd0 [<00000000581e9cdf>]     do_syscall_64+0x3a/0x80 [<00000000cf3b065c>] entry_SYSCALL_64_after_hwframe+0x46/0xb0 (CVE-2022-49648)

  - In the Linux kernel, the following vulnerability has been resolved: linux/dim: Fix divide by 0 in RDMA DIM     Fix a divide 0 error in rdma_dim_stats_compare() when prev->cpe_ratio == 0. CallTrace: Hardware name: H3C     R4900 G3/RS33M2C9S, BIOS 2.00.37P21 03/12/2020 task: ffff880194b78000 task.stack: ffffc90006714000 RIP:
    0010:backport_rdma_dim+0x10e/0x240 [mlx_compat] RSP: 0018:ffff880c10e83ec0 EFLAGS: 00010202 RAX:
    0000000000002710 RBX: ffff88096cd7f780 RCX: 0000000000000064 RDX: 0000000000000000 RSI: 0000000000000002     RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10:
    0000000000000000 R11: 0000000000000000 R12: 000000001d7c6c09 R13: ffff88096cd7f780 R14: ffff880b174fe800     R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff880c10e80000(0000) knlGS:0000000000000000 CS: 0010     DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000a0965b00 CR3: 000000000200a003 CR4: 00000000007606e0     DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6:
    00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: <IRQ> ib_poll_handler+0x43/0x80     [ib_core] irq_poll_softirq+0xae/0x110 __do_softirq+0xd1/0x28c irq_exit+0xde/0xf0 do_IRQ+0x54/0xe0     common_interrupt+0x8f/0x8f </IRQ> ? cpuidle_enter_state+0xd9/0x2a0 ? cpuidle_enter_state+0xc7/0x2a0 ?     do_idle+0x170/0x1d0 ? cpu_startup_entry+0x6f/0x80 ? start_secondary+0x1b9/0x210 ?     secondary_startup_64+0xa5/0xb0 Code: 0f 87 e1 00 00 00 8b 4c 24 14 44 8b 43 14 89 c8 4d 63 c8 44 29 c0 99     31 d0 29 d0 31 d2 48 98 48 8d 04 80 48 8d 04 80 48 c1 e0 02 <49> f7 f1 48 83 f8 0a 0f 86 c1 00 00 00 44 39     c1 7f 10 48 89 df RIP: backport_rdma_dim+0x10e/0x240 [mlx_compat] RSP: ffff880c10e83ec0 (CVE-2022-49670)

Note that Nessus has not tested for these issues 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-2026-013176 advisory.

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

    samples/bpf: Fix buffer overflow in tcp_basertt

    Using sizeof(nv) or strlen(nv)+1 is correct.

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.

  - samples/bpf: Fix buffer overflow in tcp_basertt Using sizeof(nv) or strlen(nv)+1 is correct.
    (CVE-2023-54312)

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

An update of the linux package has been released.

ID	Name	Product	Family	Type	Severity
361258	AlmaLinux 9.2 [TuxCare] Security Update: bpftool / kernel / kernel-abi-stablelists / kernel-core / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1778266904)	Nessus	Alma Linux Local Security Checks	Local	high
348098	EulerOS Virtualization 2.11.0 : kernel (EulerOS-SA-2026-3511)	Nessus	Huawei Local Security Checks	Local	critical
348006	EulerOS Virtualization 2.11.1 : kernel (EulerOS-SA-2026-3424)	Nessus	Huawei Local Security Checks	Local	critical
319448	EulerOS Virtualization 2.13.1 : kernel (EulerOS-SA-2026-2132)	Nessus	Huawei Local Security Checks	Local	high
319325	EulerOS Virtualization 2.13.0 : kernel (EulerOS-SA-2026-2171)	Nessus	Huawei Local Security Checks	Local	high
307940	Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013176)	Nessus	Unity Linux Local Security Checks	Local	medium
297194	SUSE SLED15 / SLES15 : Security update for the Linux Kernel (SUSE-SU-2026:0315-1)	Nessus	SuSE Local Security Checks	Local	high
296680	SUSE SLES15 / openSUSE 15 : Security update for the Linux Kernel (SUSE-SU-2026:0293-1)	Nessus	SuSE Local Security Checks	Local	high
296676	SUSE SLES15: kernel-azure / kernel-azure-devel / kernel-devel-azure / etc (SUSE-SU-2026:0281-1)	Nessus	SuSE Local Security Checks	Local	high
296481	SUSE SLES15 Security Update : kernel (SUSE-SU-2026:0278-1)	Nessus	SuSE Local Security Checks	Local	high
280804	Linux Distros Unpatched Vulnerability : CVE-2023-54312	Nessus	Misc.	Local	high
151965	Photon OS 4.0: Linux PHSA-2021-4.0-0065	Nessus	PhotonOS Local Security Checks	Local	high

Detections

Analytics

CVE-2023-54312

medium

Tenable Plugins

high

critical

critical

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high

medium

high

high

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high