net/mlx5e: xsk: Fix crash on regular rq reactivation (CVE-2023-53394) | HOL Guard CVE

High · CVSS 7.8CVE-2023-53394

net/mlx5e: xsk: Fix crash on regular rq reactivation

Answer in brief

CVE-2023-53394 records a High severity (CVSS 7.8) vulnerability in net/mlx5e: xsk: Fix crash on regular rq reactivation. 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 18, 2025Updated Aug 5, 2026Source checked Sep 19, 2026First seen by HOL Aug 4, 2026Material review Aug 5, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.8
Exploitation: Not marked as known exploited
Affected software: 7 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 7.8. 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.

Affected products and reported versions
Product	Affected versions	Fixed versions
cpe:2.3:o:linux:linux_kernel::::::::	Not reported	Not reported
cpe:2.3:o:linux:linux_kernel:6.5:rc1::::::	Not reported	Not reported
cpe:2.3:o:linux:linux_kernel:6.5:rc2::::::	Not reported	Not reported
cpe:2.3:o:linux:linux_kernel:6.5:rc3::::::	Not reported	Not reported
cpe:2.3:o:linux:linux_kernel:6.5:rc4::::::	Not reported	Not reported

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=082a9edf12fef88400172e7d1b131d65a3ed492e <02a84eb2af6bea7871cd34264fb27f141f005fd9 \|\| >=082a9edf12fef88400172e7d1b131d65a3ed492e <39646d9bcd1a65d2396328026626859a1dab59d7	02a84eb2af6bea7871cd34264fb27f141f005fd9, 39646d9bcd1a65d2396328026626859a1dab59d7
Linux/Linuxgeneric	6.1	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 02a84eb2af6bea7871cd34264fb27f141f005fd9 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 18, 2025
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 4, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: xsk: Fix crash on regular rq reactivation When the regular rq is reactivated after the XSK socket is closed it could be reading stale cqes which eventually corrupts the rq. This leads to no more traffic being received on the regular rq and a crash on the next close or deactivation of the rq. Kal Cuttler Conely reported this issue as a crash on the release path when the xdpsock sample program is stopped (killed) and restarted in sequence while traffic is running. This patch flushes all cqes when during the rq flush. The cqe flushing is done in the reset state of the rq. mlx5e_rq_to_ready code is moved into the flush function to allow for this.

Quoted source text, attributed separately from HOL analysis.