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, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3710-1, DLA-3711-1, DSA-5594-1, ELA-1033-1, ELA-1034-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)jessie, jessie (lts)3.16.84-1vulnerable
stretch (security)4.9.320-2vulnerable
stretch (lts), stretch4.9.320-3vulnerable
buster (security), buster, buster (lts)4.19.316-1fixed
bullseye5.10.223-1fixed
bullseye (security)5.10.226-1fixed
bookworm6.1.115-1fixed
bookworm (security)6.1.112-1fixed
trixie6.11.7-1fixed
sid6.11.9-1fixed
linux-4.19 (PTS)jessie, jessie (lts)4.19.316-1~deb8u1fixed
stretch (security)4.19.232-1~deb9u1vulnerable
stretch (lts), stretch4.19.316-1~deb9u1fixed
linux-5.10 (PTS)jessie, jessie (lts)5.10.226-1~deb8u1fixed
stretch (lts), stretch5.10.226-1~deb9u1fixed
buster, buster (lts)5.10.226-1~deb10u1fixed
buster (security)5.10.218-1~deb10u1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcejessie(unfixed)end-of-life
linuxsourcebuster4.19.304-1DLA-3710-1
linuxsourcebullseye5.10.205-2DSA-5594-1
linuxsource(unstable)5.16.7-1
linux-4.19sourcejessie4.19.304-1~deb8u1ELA-1034-1
linux-4.19sourcestretch4.19.304-1~deb9u1ELA-1034-1
linux-5.10sourcejessie5.10.205-2~deb8u1ELA-1033-1
linux-5.10sourcestretch5.10.205-2~deb9u1ELA-1033-1
linux-5.10sourcebuster5.10.205-2~deb10u1DLA-3711-1

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)

Search for package or bug name: Reporting problems