| Name | CVE-2023-31436 |
| Description | qfq_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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3446-1, DSA-5402-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| linux (PTS) | buster | 4.19.249-2 | vulnerable |
| buster (security) | 4.19.289-2 | fixed |
| bullseye | 5.10.178-3 | vulnerable |
| bullseye (security) | 5.10.191-1 | fixed |
| bookworm | 6.1.38-1 | fixed |
| bookworm (security) | 6.1.52-1 | fixed |
| sid, trixie | 6.5.3-1 | fixed |
| linux-5.10 (PTS) | buster (security) | 5.10.179-5~deb10u1 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://git.kernel.org/linus/3037933448f60f9acb705997eae62013ecb81e0d (6.3)
https://kernel.dance/#3037933448f60f9acb705997eae62013ecb81e0d