CVE-2026-98016

net/mlx5e: Fix use-after-free race in sample_restore_put()

State: Published
Severity: Not scored
Published: Sep 25, 2026
Updated: Oct 19, 2026
Reserved: Sep 25, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

net/mlx5e: Fix use-after-free race in sample_restore_put()

Concurrent teardown of TC sample rules sharing the same restore context may re-read restore->count after dropping restore_lock. At that point another thread may already have completed cleanup and freed the restore object.

Use the result of the refcount decrement while holding restore_lock to determine whether cleanup is needed.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	36a3196256bf3310e5e7142b0e61787f7a201abd to before cdf920e44cbbee1900c66f002fb50afee20977d4Affected 36a3196256bf3310e5e7142b0e61787f7a201abd to before 308e1cbb0d9712081f90860fe839ccb47bc196eeAffected 36a3196256bf3310e5e7142b0e61787f7a201abd to before 8267e46d14e847e80e0aebe366d348e8a484a619Affected 36a3196256bf3310e5e7142b0e61787f7a201abd to before 3efd1a1938cbb33c53b0d75e55b6c0fe2ebad79aAffected 36a3196256bf3310e5e7142b0e61787f7a201abd to before 72324da8eeca269db9196c2a555abf72eb0385c5Affected 36a3196256bf3310e5e7142b0e61787f7a201abd to before 1daecd76ab9e5f055fe3970462410ad1d40bd177Affected 36a3196256bf3310e5e7142b0e61787f7a201abd to before af3aef0245abbab5e9f6302e7a7d6407187afb71Affected
LinuxLinux	5.13Affected before 5.13Not affected 5.15.222 through 5.15.Not affected 6.1.189 through 6.1.Not affected 6.6.158 through 6.6.Not affected 6.12.111 through 6.12.Not affected 6.18.53 through 6.18.Not affected 7.2.7 through 7.2.Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

36a3196256bf3310e5e7142b0e61787f7a201abd to before cdf920e44cbbee1900c66f002fb50afee20977d4Affected
36a3196256bf3310e5e7142b0e61787f7a201abd to before 308e1cbb0d9712081f90860fe839ccb47bc196eeAffected
36a3196256bf3310e5e7142b0e61787f7a201abd to before 8267e46d14e847e80e0aebe366d348e8a484a619Affected
36a3196256bf3310e5e7142b0e61787f7a201abd to before 3efd1a1938cbb33c53b0d75e55b6c0fe2ebad79aAffected
36a3196256bf3310e5e7142b0e61787f7a201abd to before 72324da8eeca269db9196c2a555abf72eb0385c5Affected
36a3196256bf3310e5e7142b0e61787f7a201abd to before 1daecd76ab9e5f055fe3970462410ad1d40bd177Affected
36a3196256bf3310e5e7142b0e61787f7a201abd to before af3aef0245abbab5e9f6302e7a7d6407187afb71Affected

LinuxLinux

5.13Affected
before 5.13Not affected
5.15.222 through 5.15.*Not affected
6.1.189 through 6.1.*Not affected
6.6.158 through 6.6.*Not affected
6.12.111 through 6.12.*Not affected
6.18.53 through 6.18.*Not affected
7.2.7 through 7.2.*Not affected
7.3 and laterNot affected

References

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