CVE-2021-47252

batman-adv: Avoid WARN_ON timing related checks

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.

5.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.04%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/45011f2973f6b52cf50db397bb27bf805f5f0e7f	patch
https://git.kernel.org/stable/c/6031daaaf6d5c359c99dfffa102e332df234ff09	patch
https://git.kernel.org/stable/c/77a99aad5bc3ea105806ebae6be3cbadc2fc615e	patch
https://git.kernel.org/stable/c/e8e9d2968a9d08bf5c683afca182f1537edebf8d	patch
https://git.kernel.org/stable/c/e7fbd8184fa9e85f0d648c499841cb7ff6dec9f4	patch
https://git.kernel.org/stable/c/282baa8104af44e04c4af3e7f933b44267c7f86f	patch
https://git.kernel.org/stable/c/2eb4e0b3631832a4291c8bf4c9db873f60b128c8	patch
https://git.kernel.org/stable/c/9f460ae31c4435fd022c443a6029352217a16ac1	patch

Frequently Asked Questions

What is the severity of CVE-2021-47252?: CVE-2021-47252 has been scored as a medium severity vulnerability.
How to fix CVE-2021-47252?: To fix CVE-2021-47252, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-47252 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-47252 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-47252?: CVE-2021-47252 affects Linux Linux, Linux Linux.

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