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

What is CVE-2024-46737?

CVE-2024-46737 is a high-severity vulnerability in Linux kernel, published on 18 Sep 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-476

Which versions are affected by CVE-2024-46737?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-46737?

Apply the vendor's patch.

Is CVE-2024-46737 being exploited?

There is no known exploitation of CVE-2024-46737 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-49431, BELL-CVE-2024-46737, DEBIAN-CVE-2024-46737, GHSA-wfgh-48cf-2678, UBUNTU-CVE-2024-46737.