CVE-2021-44879

NameCVE-2021-44879
DescriptionIn gc_data_segment in fs/f2fs/gc.c in the Linux kernel before 5.16.3, special files are not considered, leading to a move_data_page NULL pointer dereference.
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)buster, buster (security)4.19.249-2vulnerable
bullseye5.10.140-1vulnerable
bullseye (security)5.10.136-1vulnerable
bookworm5.19.6-1fixed
sid5.19.11-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)5.16.7-1

Notes

[stretch] - linux <ignored> (Minor issue; f2fs is not supportable)
https://www.openwall.com/lists/oss-security/2022/02/12/1
Fixed by: https://git.kernel.org/linus/9056d6489f5a41cfbb67f719d2c0ce61ead72d9f (5.17-rc1)

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