| Name | CVE-2022-4129 |
| Description | A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol (L2TP). A missing lock when clearing sk_user_data can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service. |
| 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-3404-1, ELA-845-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| linux (PTS) | jessie, jessie (lts) | 3.16.84-1 | vulnerable |
| stretch (security) | 4.9.320-2 | vulnerable |
| stretch (lts), stretch | 4.9.320-3 | vulnerable |
| buster | 4.19.249-2 | vulnerable |
| buster (security) | 4.19.289-2 | vulnerable |
| bullseye | 5.10.197-1 | fixed |
| bullseye (security) | 5.10.191-1 | fixed |
| bookworm | 6.1.55-1 | fixed |
| bookworm (security) | 6.1.52-1 | fixed |
| trixie | 6.5.10-1 | fixed |
| sid | 6.5.13-1 | fixed |
| linux-5.10 (PTS) | stretch (lts), stretch | 5.10.197-1~deb9u1 | fixed |
| buster (security) | 5.10.197-1~deb10u1 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://lore.kernel.org/all/20221114191619.124659-1-jakub@cloudflare.com/t
https://git.kernel.org/linus/b68777d54fac21fc833ec26ea1a2a84f975ab035 (6.1-rc6)
https://git.kernel.org/linus/af295e854a4e3813ffbdef26dbb6a4d6226c3ea1 (6.1-rc7)