CVE-2021-47091

EUVD-2021-33739 · Published Mar 4, 2024

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix locking in ieee80211_start_ap error path We need to hold the local->mtx to release the channel context, as even encoded by the lockdep_assert_held() there. Fix it.

Technologies

Linux Linux Kernel

Weaknesses

CWE-667

CVSS scores

v3.15.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

MITRE ATT&CK

Inferred

Where this vulnerability fits in an attack

ReconImpact

Privilege Escalation Impact

T1068Exploitation for Privilege Escalation T1499.004Application or System Exploitation

References

https://git.kernel.org/stable/c/87a270625a89fc841f1a7e21aae6176543d8385c
https://git.kernel.org/stable/c/ac61b9c6c0549aaeb98194cf429d93c41bfe5f79
https://git.kernel.org/stable/c/c1d1ec4db5f7264cfc21993e59e8f2dcecf4b44f

Potentially impacted assets

See if this affects your attack surface