5.5

CVE-2021-47091

mac80211: fix locking in ieee80211_start_ap error path

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.10 < 5.10.89
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.12
Linux ≫ Linux Kernel Version 5.16 Update rc1
Linux ≫ Linux Kernel Version 5.16 Update rc2
Linux ≫ Linux Kernel Version 5.16 Update rc3
Linux ≫ Linux Kernel Version 5.16 Update rc4
Linux ≫ Linux Kernel Version 5.16 Update rc5
Linux ≫ Linux Kernel Version 5.16 Update rc6
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.066
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-667 Improper Locking

The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

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