CVE-2022-42722

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-10-14 · updated 2026-10-14
Weakness: CWE-476

Description

In the Linux kernel 5.8 through 5.19.x before 5.19.16, local attackers able to inject WLAN frames into the mac80211 stack could cause a NULL pointer dereference denial-of-service attack against the beacon protection of P2P devices.

Affected products

Debian Linux: 10.0, 11.0
Fedoraproject Fedora: 35, 36, 37
Linux kernel: from 5.8 before 5.19.16 — fixed in 5.19.16

How to fix

Upgrade to a fixed version: Linux kernel 5.19.16. Check the vendor advisory for mitigations.

References

http://packetstormsecurity.com/files/169951/Kernel-Live-Patch-Security-Notice-LSN-0090-1.html
http://www.openwall.com/lists/oss-security/2022/10/13/5
https://bugzilla.suse.com/show_bug.cgi?id=1204125
https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless.git/commit/?id=b2d03cabe2b2e150ff5a381731ea0355459be09f
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GGHENNMLCWIQV2LLA56BJNFIUZ7WB4IY/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2KTU5LFZNQS7YNGE56MT46VHMXL3DD2/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VNN3VFQPECS6D4PS6ZWD7AFXTOSJDSSR/
https://security.netapp.com/advisory/ntap-20230203-0008/
https://www.debian.org/security/2022/dsa-5257
http://packetstormsecurity.com/files/169951/Kernel-Live-Patch-Security-Notice-LSN-0090-1.html
http://www.openwall.com/lists/oss-security/2022/10/13/5

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