CVE-2023-53340: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

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 products

• Linux Linux Kernel: from 5.18, before 6.1.31 (fixed in 6.1.31); from 6.2, before 6.3.5 (fixed in 6.3.5); version 6.4 only

Published 2025-09-17. Last modified 2026-06-17.