Security tracker / CVE-2025-21634

CVE-2025-21634

cgroup/cpuset: remove kernfs active break

References

• Debian security tracker
• cve.org

Notes

 carnil> Introduced in bdb2fd7fc56e ("kernfs: Skip kernfs_drain_open_files() more
 carnil> aggressively")
 carnil> 76bb5ab8f6e3 ("cpuset: break kernfs active protection in
 carnil> cpuset_write_resmask()"). Vulnerable versions: 3.16-rc5.

Bugs

Status

Branch	Status
upstream	released (6.13-rc7) [3cb97a927fffe443e1e7e8eddbfebfdb062e86ed]
6.18-upstream-stable	N/A "Fixed before branching point"
6.17-upstream-stable	N/A "Fixed before branching point"
6.12-upstream-stable	released (6.12.10) [11cb1d643a74665a4e14749414f48f82cbc15c64]
6.6-upstream-stable	needed
6.1-upstream-stable	needed
5.10-upstream-stable	needed
sid	released (6.12.10-1)
6.12-trixie-security	N/A "Fixed before branching point"
6.1-bookworm-security	needed
5.10-bullseye-security	needed