CVE-2022-41218

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-09-21 · updated 2026-10-14
Weakness: CWE-416

Description

In drivers/media/dvb-core/dmxdev.c in the Linux kernel through 5.19.10, there is a use-after-free caused by refcount races, affecting dvb_demux_open and dvb_dmxdev_release.

Affected products

Debian Linux: 11.0
Linux kernel: through 5.19.10

References

http://www.openwall.com/lists/oss-security/2022/09/23/4
http://www.openwall.com/lists/oss-security/2022/09/24/1
http://www.openwall.com/lists/oss-security/2022/09/24/2
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fd3d91ab1c6ab0628fe642dd570b56302c30a792
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/media/dvb-core/dmxdev.c
https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
https://lore.kernel.org/all/20220908132754.30532-1-tiwai%40suse.de/
https://www.debian.org/security/2023/dsa-5324
http://www.openwall.com/lists/oss-security/2022/09/23/4
http://www.openwall.com/lists/oss-security/2022/09/24/1
http://www.openwall.com/lists/oss-security/2022/09/24/2

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