CVE-2023-31436

NameCVE-2023-31436
Descriptionqfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3446-1, DSA-5402-1, ELA-864-1

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
bookworm6.1.106-3fixed
bookworm (security)6.1.112-1fixed
trixie6.11.5-1fixed
sid6.11.6-1fixed
linux-5.10 (PTS)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
linuxsourcestretch(unfixed)end-of-life
linuxsourcebuster4.19.282-1
linuxsourcebullseye5.10.179-1DSA-5402-1
linuxsource(unstable)6.1.27-1
linux-5.10sourcestretch5.10.179-1~deb9u1ELA-864-1
linux-5.10sourcebuster5.10.179-1~deb10u1DLA-3446-1

Notes

https://git.kernel.org/linus/3037933448f60f9acb705997eae62013ecb81e0d (6.3)
https://kernel.dance/#3037933448f60f9acb705997eae62013ecb81e0d

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