CVE-2021-45868

NameCVE-2021-45868
DescriptionIn the Linux kernel before 5.15.3, fs/quota/quota_tree.c does not validate the block number in the quota tree (on disk). This can, for example, lead to a kernel/locking/rwsem.c use-after-free if there is a corrupted quota file.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)buster4.19.249-2fixed
buster (security)4.19.260-1fixed
bullseye5.10.140-1fixed
bullseye (security)5.10.136-1fixed
bookworm, sid5.19.11-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcestretch4.9.303-1
linuxsourcebuster4.19.232-1
linuxsourcebullseye5.10.84-1
linuxsource(unstable)5.15.3-1

Notes

https://git.kernel.org/linus/9bf3d20331295b1ecb81f4ed9ef358c51699a050
https://bugzilla.kernel.org/show_bug.cgi?id=214655
https://www.openwall.com/lists/oss-security/2022/03/17/1

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