mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure
Résumé
mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure
Description d'origine
La description telle que publiée par la source (souvent en anglais).
In the Linux kernel, the following vulnerability has been resolved:
mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure
Patch series "mm/damon/sysfs: fix memory leak and NULL dereference
issues", v4.
DAMON_SYSFS can leak memory under allocation failure, and do NULL pointer
dereference when a privileged user make wrong sequences of control. Fix
those.
This patch (of 3):
When damon_sysfs_new_test_ctx() fails in damon_sysfs_commit_input(),
param_ctx is leaked because the early return skips the cleanup at the out
label. Destroy param_ctx before returning.
Paquets affectés
État des correctifs par distribution
Paquets corrigés publiés par chaque distribution pour cette CVE
- BellSoft Alpaquita BELL-CVE-2026-31459 linux-lts Corrigé dans: 6.18.35-r1
- Debian DEBIAN-CVE-2026-31459 linux Corrigé dans: 6.19.11-1
- Ubuntu UBUNTU-CVE-2026-31459 linux-hwe-edge
Références
- advisory github.com
- advisory nvd.nist.gov
- package git.kernel.org
- web git.kernel.org
- web git.kernel.org
- web git.kernel.org