CVE-2021-47252: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: batman-adv: Avoid WARN_ON timing related checks The soft/batadv interface for a queued OGM can be changed during the time the OGM was queued for transmission and when the OGM is actually transmitted by the worker. But WARN_ON must be used to denote kernel bugs and not to print simple warnings. A warning can simply be printed using pr_warn.

Affected products

• Linux Linux Kernel: from 3.14, before 4.4.293 (fixed in 4.4.293); from 4.5, before 4.9.274 (fixed in 4.9.274); from 4.10, before 4.14.238 (fixed in 4.14.238); from 4.15, before 4.19.196 (fixed in 4.19.196); from 4.20, before 5.4.128 (fixed in 5.4.128); from 5.5, before 5.10.46 (fixed in 5.10.46); …

Published 2024-05-21. Last modified 2026-06-17.