net/mlx5e: Fix use-after-free race in sample_restore_put() (CVE-2026-98016) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-98016

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

Answer in brief

CVE-2026-98016 records a Unknown severity vulnerability in net/mlx5e: Fix use-after-free race in sample_restore_put(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 25, 2026Updated Sep 25, 2026Source checked Sep 25, 2026First seen by HOL Sep 25, 2026Material review Sep 25, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=36a3196256bf3310e5e7142b0e61787f7a201abd <3efd1a1938cbb33c53b0d75e55b6c0fe2ebad79a \|\| >=36a3196256bf3310e5e7142b0e61787f7a201abd <72324da8eeca269db9196c2a555abf72eb0385c5 \|\| >=36a3196256bf3310e5e7142b0e61787f7a201abd <1daecd76ab9e5f055fe3970462410ad1d40bd177 \|\| >=36a3196256bf3310e5e7142b0e61787f7a201abd <af3aef0245abbab5e9f6302e7a7d6407187afb71	3efd1a1938cbb33c53b0d75e55b6c0fe2ebad79a, 72324da8eeca269db9196c2a555abf72eb0385c5, 1daecd76ab9e5f055fe3970462410ad1d40bd177, af3aef0245abbab5e9f6302e7a7d6407187afb71
Linux/Linuxgeneric	5.13	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 3efd1a1938cbb33c53b0d75e55b6c0fe2ebad79a if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 25, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.