Riskcovery

CVE-2021-47252

batman-adv: Avoid WARN_ON timing related checks

State
Published
Severity
Not scored
Published
May 21, 2024
Updated
May 11, 2026
Reserved
Apr 10, 2024

Read the record on cve.org

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • ef0a937f7a1450d3a133ccd83c9c7d07587e7a00 to before 45011f2973f6b52cf50db397bb27bf805f5f0e7fAffected
  • ef0a937f7a1450d3a133ccd83c9c7d07587e7a00 to before 6031daaaf6d5c359c99dfffa102e332df234ff09Affected
  • ef0a937f7a1450d3a133ccd83c9c7d07587e7a00 to before 77a99aad5bc3ea105806ebae6be3cbadc2fc615eAffected
  • ef0a937f7a1450d3a133ccd83c9c7d07587e7a00 to before e8e9d2968a9d08bf5c683afca182f1537edebf8dAffected
  • ef0a937f7a1450d3a133ccd83c9c7d07587e7a00 to before e7fbd8184fa9e85f0d648c499841cb7ff6dec9f4Affected
  • ef0a937f7a1450d3a133ccd83c9c7d07587e7a00 to before 282baa8104af44e04c4af3e7f933b44267c7f86fAffected
  • ef0a937f7a1450d3a133ccd83c9c7d07587e7a00 to before 2eb4e0b3631832a4291c8bf4c9db873f60b128c8Affected
  • ef0a937f7a1450d3a133ccd83c9c7d07587e7a00 to before 9f460ae31c4435fd022c443a6029352217a16ac1Affected
LinuxLinux
  • 3.14Affected
  • before 3.14Not affected
  • 4.4.293 through 4.4.*Not affected
  • 4.9.274 through 4.9.*Not affected
  • 4.14.238 through 4.14.*Not affected
  • 4.19.196 through 4.19.*Not affected
  • 5.4.128 through 5.4.*Not affected
  • 5.10.46 through 5.10.*Not affected
  • 5.12.13 through 5.12.*Not affected
  • 5.13 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.