CVE-2021-47252
batman-adv: Avoid WARN_ON timing related checks
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
3.14
References 8
git.kernel.org
- stable/c/45011f2973f6b52cf50db397bb27bf805f5f0e7f
- stable/c/6031daaaf6d5c359c99dfffa102e332df234ff09
- stable/c/77a99aad5bc3ea105806ebae6be3cbadc2fc615e
- stable/c/e8e9d2968a9d08bf5c683afca182f1537edebf8d
- stable/c/e7fbd8184fa9e85f0d648c499841cb7ff6dec9f4
- stable/c/282baa8104af44e04c4af3e7f933b44267c7f86f
- stable/c/2eb4e0b3631832a4291c8bf4c9db873f60b128c8
- stable/c/9f460ae31c4435fd022c443a6029352217a16ac1