The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013537 advisory.

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

    net/smc: use smc_lgr_list.lock to protect smc_lgr_list.list iterate in smcr_port_add

    While doing smcr_port_add, there maybe linkgroup add into or delete     from smc_lgr_list.list at the same time, which may result kernel crash.
    So, use smc_lgr_list.lock to protect smc_lgr_list.list iterate in     smcr_port_add.

    The crash calltrace show below:
    BUG: kernel NULL pointer dereference, address: 0000000000000000     PGD 0 P4D 0     Oops: 0000 [#1] SMP NOPTI     CPU: 0 PID: 559726 Comm: kworker/0:92 Kdump: loaded Tainted: G     Hardware name: Alibaba Cloud Alibaba Cloud ECS, BIOS 449e491 04/01/2014     Workqueue: events smc_ib_port_event_work [smc]     RIP: 0010:smcr_port_add+0xa6/0xf0 [smc]     RSP: 0000:ffffa5a2c8f67de0 EFLAGS: 00010297     RAX: 0000000000000001 RBX: ffff9935e0650000 RCX: 0000000000000000     RDX: 0000000000000010 RSI: ffff9935e0654290 RDI: ffff9935c8560000     RBP: 0000000000000000 R08: 0000000000000000 R09: ffff9934c0401918     R10: 0000000000000000 R11: ffffffffb4a5c278 R12: ffff99364029aae4     R13: ffff99364029aa00 R14: 00000000ffffffed R15: ffff99364029ab08     FS:  0000000000000000(0000) GS:ffff994380600000(0000) knlGS:0000000000000000     CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033     CR2: 0000000000000000 CR3: 0000000f06a10003 CR4: 0000000002770ef0     PKRU: 55555554     Call Trace:
     smc_ib_port_event_work+0x18f/0x380 [smc]      process_one_work+0x19b/0x340      worker_thread+0x30/0x370      ? process_one_work+0x340/0x340      kthread+0x114/0x130      ? __kthread_cancel_work+0x50/0x50      ret_from_fork+0x1f/0x30

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-2026-010869 advisory.

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

    net/smc: use smc_lgr_list.lock to protect smc_lgr_list.list iterate in smcr_port_add

    While doing smcr_port_add, there maybe linkgroup add into or delete     from smc_lgr_list.list at the same time, which may result kernel crash.
    So, use smc_lgr_list.lock to protect smc_lgr_list.list iterate in     smcr_port_add.

    The crash calltrace show below:
    BUG: kernel NULL pointer dereference, address: 0000000000000000     PGD 0 P4D 0     Oops: 0000 [#1] SMP NOPTI     CPU: 0 PID: 559726 Comm: kworker/0:92 Kdump: loaded Tainted: G     Hardware name: Alibaba Cloud Alibaba Cloud ECS, BIOS 449e491 04/01/2014     Workqueue: events smc_ib_port_event_work [smc]     RIP: 0010:smcr_port_add+0xa6/0xf0 [smc]     RSP: 0000:ffffa5a2c8f67de0 EFLAGS: 00010297     RAX: 0000000000000001 RBX: ffff9935e0650000 RCX: 0000000000000000     RDX: 0000000000000010 RSI: ffff9935e0654290 RDI: ffff9935c8560000     RBP: 0000000000000000 R08: 0000000000000000 R09: ffff9934c0401918     R10: 0000000000000000 R11: ffffffffb4a5c278 R12: ffff99364029aae4     R13: ffff99364029aa00 R14: 00000000ffffffed R15: ffff99364029ab08     FS:  0000000000000000(0000) GS:ffff994380600000(0000) knlGS:0000000000000000     CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033     CR2: 0000000000000000 CR3: 0000000f06a10003 CR4: 0000000002770ef0     PKRU: 55555554     Call Trace:
     smc_ib_port_event_work+0x18f/0x380 [smc]      process_one_work+0x19b/0x340      worker_thread+0x30/0x370      ? process_one_work+0x340/0x340      kthread+0x114/0x130      ? __kthread_cancel_work+0x50/0x50      ret_from_fork+0x1f/0x30

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.

  - net/smc: use smc_lgr_list.lock to protect smc_lgr_list.list iterate in smcr_port_add While doing     smcr_port_add, there maybe linkgroup add into or delete from smc_lgr_list.list at the same time, which may     result kernel crash. So, use smc_lgr_list.lock to protect smc_lgr_list.list iterate in smcr_port_add. The     crash calltrace show below: BUG: kernel NULL pointer dereference, address: 0000000000000000 PGD 0 P4D 0     Oops: 0000 [#1] SMP NOPTI CPU: 0 PID: 559726 Comm: kworker/0:92 Kdump: loaded Tainted: G Hardware name:
    Alibaba Cloud Alibaba Cloud ECS, BIOS 449e491 04/01/2014 Workqueue: events smc_ib_port_event_work [smc]     RIP: 0010:smcr_port_add+0xa6/0xf0 [smc] RSP: 0000:ffffa5a2c8f67de0 EFLAGS: 00010297 RAX: 0000000000000001     RBX: ffff9935e0650000 RCX: 0000000000000000 RDX: 0000000000000010 RSI: ffff9935e0654290 RDI:
    ffff9935c8560000 RBP: 0000000000000000 R08: 0000000000000000 R09: ffff9934c0401918 R10: 0000000000000000     R11: ffffffffb4a5c278 R12: ffff99364029aae4 R13: ffff99364029aa00 R14: 00000000ffffffed R15:
    ffff99364029ab08 FS: 0000000000000000(0000) GS:ffff994380600000(0000) knlGS:0000000000000000 CS: 0010 DS:
    0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000f06a10003 CR4: 0000000002770ef0     PKRU: 55555554 Call Trace: smc_ib_port_event_work+0x18f/0x380 [smc] process_one_work+0x19b/0x340     worker_thread+0x30/0x370 ? process_one_work+0x340/0x340 kthread+0x114/0x130 ?
    __kthread_cancel_work+0x50/0x50 ret_from_fork+0x1f/0x30 (CVE-2023-54318)

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	Published	Updated	Severity
309375	Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013537)	Nessus	Unity Linux Local Security Checks	4/22/2026	8/29/2026	high
297194	SUSE SLED15 / SLES15 : Security update for the Linux Kernel (SUSE-SU-2026:0315-1)	Nessus	SuSE Local Security Checks	1/30/2026	9/29/2026	high
296680	SUSE SLES15 / openSUSE 15 : Security update for the Linux Kernel (SUSE-SU-2026:0293-1)	Nessus	SuSE Local Security Checks	1/27/2026	9/29/2026	high
308617	Unity Linux 20.1070e Security Update: kernel (UTSA-2026-010869)	Nessus	Unity Linux Local Security Checks	4/21/2026	8/29/2026	high
296676	SUSE SLES15: kernel-azure / kernel-azure-devel / kernel-devel-azure / etc (SUSE-SU-2026:0281-1)	Nessus	SuSE Local Security Checks	1/27/2026	6/26/2026	high
296481	SUSE SLES15 Security Update : kernel (SUSE-SU-2026:0278-1)	Nessus	SuSE Local Security Checks	1/24/2026	1/24/2026	high
280817	Linux Distros Unpatched Vulnerability : CVE-2023-54318	Nessus	Misc.	12/31/2025	11/6/2026	high
151965	Photon OS 4.0: Linux PHSA-2021-4.0-0065	Nessus	PhotonOS Local Security Checks	7/22/2021	11/2/2026	high

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