CVE-2026-23019

medium

Description

In the Linux kernel, the following vulnerability has been resolved: net: marvell: prestera: fix NULL dereference on devlink_alloc() failure devlink_alloc() may return NULL on allocation failure, but prestera_devlink_alloc() unconditionally calls devlink_priv() on the returned pointer. This leads to a NULL pointer dereference if devlink allocation fails. Add a check for a NULL devlink pointer and return NULL early to avoid the crash.

References

https://git.kernel.org/stable/c/a428e0da1248c353557970848994f35fd3f005e2

https://git.kernel.org/stable/c/94e070cd50790317fba7787ae6006934b7edcb6f

https://git.kernel.org/stable/c/8a4333b2818f0d853b43e139936c20659366e4a0

https://git.kernel.org/stable/c/3950054c9512add0cc79ab7e72b6d2f9f675e25b

https://git.kernel.org/stable/c/326a4b7e61d01db3507f71c8bb5e85362f607064

https://git.kernel.org/stable/c/325aea74be7e192b5c947c782da23b0d19a5fda2

Details

Source: Mitre, NVD

Published: 2026-01-31

Updated: 2026-01-31

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00024