CVE-2024-56637

low-risk
Published 2024-12-27

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Hold module reference while requesting a module User space may unload ip_set.ko while it is itself requesting a set type backend module, leading to a kernel crash. The race condition may be provoked by inserting an mdelay() right after the nfnl_unlock() call.

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.7/10 Medium
LOCAL / HIGH complexity

Affected Products (2)

Affected Vendors

Linux

References (9)

Patch https://git.kernel.org/stable/c/0e67805e805c1f3edd6f43adbe08ea14b552694b
Patch https://git.kernel.org/stable/c/456f010bfaefde84d3390c755eedb1b0a5857c3c
Patch https://git.kernel.org/stable/c/5bae60a933ba5d16eed55c6b279be51bcbbc79b0
Patch https://git.kernel.org/stable/c/6099b5d3e37145484fac4b8b4070c3f1abfb3519
Patch https://git.kernel.org/stable/c/90bf312a6b6b3d6012137f6776a4052ee85e0340
Patch https://git.kernel.org/stable/c/ba5e070f36682d07ca7ad2a953e6c9d96be19dca
Patch https://git.kernel.org/stable/c/e5e2d3024753fdaca818b822e3827614bacbdccf
https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
19
/ 100
low-risk
Severity 12/34 · Low
Exploitability 0/34 · Minimal
Exposure 7/34 · Low