| Name | CVE-2026-89791 |
| Description | perf: Fix use-after-free when perf mmap() revival races with the last munmap() |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| linux (PTS) | bookworm | 6.1.176-1 | fixed |
| bookworm (security) | 6.1.187-1 | fixed |
| trixie (security), trixie | 6.12.107-1 | fixed |
| forky, sid | 7.1.13-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| linux | source | bookworm | (not affected) | | | |
| linux | source | trixie | (not affected) | | | |
| linux | source | (unstable) | (unfixed) | | | |
Notes
[trixie] - linux <not-affected> (Vulnerable code not present)
[bookworm] - linux <not-affected> (Vulnerable code not present)
https://git.kernel.org/linus/58a8108bc73de0740d5b88150465d6690ea5f85f (7.3-rc2)