CVE-2021-47091

MEDIUM

Linux Kernel 5.10-5.10.89 - Improper Locking in mac80211 AP Start Error Path

Title source: llm

Description

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.

References (3)

Core 3

Core References

Patch

https://git.kernel.org/stable/c/ac61b9c6c0549aaeb98194cf429d93c41bfe5f79

Patch

https://git.kernel.org/stable/c/c1d1ec4db5f7264cfc21993e59e8f2dcecf4b44f

Patch

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

Scores

CVSS v3 5.5

EPSS 0.0017

EPSS Percentile 6.5%

Attack Vector LOCAL

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-667

Status published

Products (10)

Linux/Linux < 5.10

Linux/Linux 295b02c4be74bebf988593b8322369513fcecf68 - 87a270625a89fc841f1a7e21aae6176543d8385c

Linux/Linux 295b02c4be74bebf988593b8322369513fcecf68 - ac61b9c6c0549aaeb98194cf429d93c41bfe5f79

Linux/Linux 295b02c4be74bebf988593b8322369513fcecf68 - c1d1ec4db5f7264cfc21993e59e8f2dcecf4b44f

Linux/Linux 5.10

Linux/Linux 5.10.89 - 5.10.*

Linux/Linux 5.15.12 - 5.15.*

Linux/Linux 5.16

linux/linux_kernel 5.16 rc1 (6 CPE variants)

linux/linux_kernel 5.10 - 5.10.89

Published Mar 04, 2024

Tracked Since Feb 18, 2026