CVE-2022-20566

NameCVE-2022-20566
DescriptionIn l2cap_chan_put of l2cap_core, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-165329981References: Upstream kernel
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)buster4.19.249-2vulnerable
buster (security)4.19.289-2fixed
bullseye5.10.178-3fixed
bullseye (security)5.10.191-1fixed
bookworm6.1.38-1fixed
bookworm (security)6.1.52-1fixed
sid, trixie6.5.3-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebuster4.19.260-1
linuxsourcebullseye5.10.136-1
linuxsource(unstable)5.18.16-1

Notes

https://git.kernel.org/linus/d0be8347c623e0ac4202a1d4e0373882821f56b0

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