CVE-2023-53340

net/mlx5: Collect command failures data only for known commands

HIGH
7.8
CVSS Score
Published: September 17, 2025 at 02:56 PM UTC
Updated: August 5, 2026 at 10:24 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Collect command failures data only for known commands DEVX can issue a general command, which is not used by mlx5 driver. In case such command is failed, mlx5 is trying to collect the failure data, However, mlx5 doesn't create a storage for this command, since mlx5 doesn't use it. This lead to array-index-out-of-bounds error. Fix it by checking whether the command is known before collecting the failure data.

Affected

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

5.18 ≤ v < 6.1.315.18 ≤ v < 6.3.55.18 ≤ v < 6.46.2 ≤ v < 6.3.534f46ae0d4b38e83cfb26fb6f06b5b5efea47fdc5.186.4 rc16.4 rc26.4 rc3
Vendor states this is fixed in 2a0a935fb64ee8af253b9c6133bb6702fb152ac2 (fixed)
Vendor states this is fixed in 411e4d6caa7f7169192b8dacc8421ac4fd64a354 (fixed)
Vendor states this is fixed in d8b6f175235d7327b4e1b13216859e89496dfbd5 (fixed)
Vendor states this is fixed in 5.18 (unaffected)
Vendor states this is fixed in 6.1.31 (unaffected)
Vendor states this is fixed in 6.3.5 (unaffected)
Vendor states this is fixed in 6.4 (unaffected)

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-129

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