CVE-2024-56713: net: netdevsim: fix nsim_pp_hold_write()

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-12-29 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: net: netdevsim: fix nsim_pp_hold_write() nsim_pp_hold_write() has two problems: 1) It may return with rtnl held, as found by syzbot. 2) Its return value does not propagate an error if any.

Affected products

Linux kernel: from 6.10 before 6.12.7; 6.13-rc1, 6.13-rc2, 6.13-rc3 — fixed in 6.12.7

How to fix

Upgrade to a fixed version: Linux kernel 6.12.7. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/5c553262f063b3bf85df3b22a9818a8d92510f4d
https://git.kernel.org/stable/c/b9b8301d369b4c876de5255dbf067b19ba88ac71

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