CVE-2026-23019

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.

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 2% of CVEs (scores of 2026-10-25)

CWE

CWE-476

Published

2026-01-31

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/325aea74be7e192b5c947c782da23b0d19a5fda2
• https://git.kernel.org/stable/c/326a4b7e61d01db3507f71c8bb5e85362f607064
• https://git.kernel.org/stable/c/3950054c9512add0cc79ab7e72b6d2f9f675e25b
• https://git.kernel.org/stable/c/8a4333b2818f0d853b43e139936c20659366e4a0
• https://git.kernel.org/stable/c/94e070cd50790317fba7787ae6006934b7edcb6f

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