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

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)buster4.19.249-2vulnerable
buster (security)4.19.304-1fixed
bullseye5.10.209-2fixed
bullseye (security)5.10.205-2fixed
bookworm6.1.76-1fixed
bookworm (security)6.1.69-1fixed
trixie6.6.15-2fixed
sid6.7.9-2fixed
linux-5.10 (PTS)buster (security)5.10.209-2~deb10u1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebuster4.19.282-1
linuxsourcebullseye5.10.179-1DSA-5402-1
linuxsource(unstable)6.1.27-1
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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