Lucene search

416baaa9-dc9f-4396-8d5f-8c081fb06d67NVD:CVE-2021-47091

HistoryMar 04, 2024 - 6:15 p.m.

CVE-2021-47091

2024-03-0418:15:07

416baaa9-dc9f-4396-8d5f-8c081fb06d67

web.nvd.nist.gov

linux

kernel

vulnerability

fixed

mac80211

ieee80211

start_ap

error path

locking

channel context

mtx

7.3 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.7%

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

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

git.kernel.org/stable/c/ac61b9c6c0549aaeb98194cf429d93c41bfe5f79

git.kernel.org/stable/c/c1d1ec4db5f7264cfc21993e59e8f2dcecf4b44f