PT-2026-5538 · Mlx5E+3 · Mlx5E+3

CVE-2026-23035

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Published

2026-01-01

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Updated

2026-08-30

CVSS v3.1

5.1

Medium

VectorAV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.18.0-rc5+ #115
Description The Linux kernel contains a flaw in the mlx5e network driver. Specifically, the mlx5e priv structure, which is unstable, could be cleared if profile attachment failed. This issue occurs because the netdev pointer was not correctly passed to the mlx5e destroy netdev() function. This could lead to a kernel oops during mlx5e remove when switchdev mode fails due to profile change failures. The issue manifests as a kernel NULL pointer dereference within the mlx5e dcbnl dscp app function.
Recommendations Update to Linux kernel version 6.18.0-rc5+ #115 or a later version to resolve this issue.

Exploit

Fix

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Related Identifiers

AZL-77232
CVE-2026-23035
ECHO-6DB1-1721-0288
OESA-2026-1759
OESA-2026-1760
OESA-2026-1761
OPENSUSE-SU-2026:20416-1
SUSE-SU-2026:0962-1
SUSE-SU-2026:1081-1
SUSE-SU-2026:20667-1
SUSE-SU-2026:20720-1
SUSE-SU-2026:20838-1
SUSE-SU-2026:20845-1
SUSE-SU-2026:20873-1
SUSE-SU-2026:20876-1
SUSE-SU-2026:20931-1
SUSE-SU-2026:21284-1
USN-8278-1
USN-8278-2
USN-8289-1
USN-8289-2
USN-8296-1
USN-8296-2
USN-8393-1
USN-8440-1
USN-8499-1
USN-8570-1
USN-8570-2
USN-8594-1
USN-8604-1
USN-8605-1
USN-8669-1

Affected Products

Linuxmint
Linux Kernel
Ubuntu
Mlx5E