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CVE-2026-98016

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

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, and 1 more
None on Exploit-DB, Metasploit or GitHub

Summary

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 36a3196256bf3310e5e7142b0e61787f7a201abd · fixed in cdf920e44cbbee1900c66f002fb50afee20977d4; From 36a3196256bf3310e5e7142b0e61787f7a201abd · fixed in 308e1cbb0d9712081f90860fe839ccb47bc196ee; From 36a3196256bf3310e5e7142b0e61787f7a201abd · fixed in 8267e46d14e847e80e0aebe366d348e8a484a619; From 36a3196256bf3310e5e7142b0e61787f7a201abd · fixed in 3efd1a1938cbb33c53b0d75e55b6c0fe2ebad79a; From 36a3196256bf3310e5e7142b0e61787f7a201abd · fixed in 72324da8eeca269db9196c2a555abf72eb0385c5; From 36a3196256bf3310e5e7142b0e61787f7a201abd · fixed in 1daecd76ab9e5f055fe3970462410ad1d40bd177; From 36a3196256bf3310e5e7142b0e61787f7a201abd · fixed in af3aef0245abbab5e9f6302e7a7d6407187afb71

  • Linux Linux

    5.13

  • KernelLinux

    From 5.13.0 · fixed in 5.15.222; From 5.16.0 · fixed in 6.1.189; From 6.2.0 · fixed in 6.6.158; From 6.7.0 · fixed in 6.12.111; From 6.13.0 · fixed in 6.18.53; From 6.19.0 · fixed in 7.2.7

References 7

git.kernel.org