CVE-2026-98016

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

N/A
Published: September 25, 2026 at 10:23 AM UTC
Updated: October 19, 2026 at 10:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

36a3196256bf3310e5e7142b0e61787f7a201abd5.13
Vendor states this is fixed in 1daecd76ab9e5f055fe3970462410ad1d40bd177 (fixed)
Vendor states this is fixed in 308e1cbb0d9712081f90860fe839ccb47bc196ee (fixed)
Vendor states this is fixed in 3efd1a1938cbb33c53b0d75e55b6c0fe2ebad79a (fixed)
Vendor states this is fixed in 72324da8eeca269db9196c2a555abf72eb0385c5 (fixed)
Vendor states this is fixed in 8267e46d14e847e80e0aebe366d348e8a484a619 (fixed)
Vendor states this is fixed in af3aef0245abbab5e9f6302e7a7d6407187afb71 (fixed)
Vendor states this is fixed in cdf920e44cbbee1900c66f002fb50afee20977d4 (fixed)
Vendor states this is fixed in 5.13 (unaffected)
Vendor states this is fixed in 5.15.222 (unaffected)
Vendor states this is fixed in 6.1.189 (unaffected)
Vendor states this is fixed in 6.12.111 (unaffected)
Vendor states this is fixed in 6.18.53 (unaffected)
Vendor states this is fixed in 6.6.158 (unaffected)
Vendor states this is fixed in 7.2.7 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc3 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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