What’s Vulnerable › Vulnerabilities

CVE-2024-46737: nvmet-tcp: fix kernel crash if commands allocation fails

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-09-18 · updated 2026-08-04
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: fix kernel crash if commands allocation fails If the commands allocation fails in nvmet_tcp_alloc_cmds() the kernel crashes in nvmet_tcp_release_queue_work() because of a NULL pointer dereference. nvmet: failed to install queue 0 cntlid 1 ret 6 Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 Fix the bug by setting queue->nr_cmds to zero in case nvmet_tcp_alloc_cmd() fails.

Affected products

• Linux kernel: from 5.0 before 5.4.284; from 5.5 before 5.10.226; from 5.11 before 5.15.167; from 5.16 before 6.1.110; from 6.2 before 6.6.51; from 6.7 before 6.10.10 — fixed in 5.10.226, 5.15.167, 5.4.284, 6.1.110, 6.10.10, 6.6.51

How to fix

Upgrade to a fixed version: Linux kernel 5.10.226, 5.15.167, 5.4.284, 6.1.110. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/03e1fd0327fa5e2174567f5fe9290fe21d21b8f4
• https://git.kernel.org/stable/c/489f2913a63f528cfe3f21722583fb981967ecda
• https://git.kernel.org/stable/c/50632b877ce55356f5d276b9add289b1e7ddc683
• https://git.kernel.org/stable/c/5572a55a6f830ee3f3a994b6b962a5c327d28cb3
• https://git.kernel.org/stable/c/6c04d1e3ab22cc5394ef656429638a5947f87244
• https://git.kernel.org/stable/c/7957c731fc2b23312f8935812dee5a0b14b04e2d
• https://git.kernel.org/stable/c/91dad30c5607e62864f888e735d0965567827bdf
• https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
• https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

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