CVE-2025-21775

MEDIUM

Linux Kernel 5.19-6.13.3 - NULL Pointer Dereference in ctucanfd Error Interrupt Handler

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: can: ctucanfd: handle skb allocation failure If skb allocation fails, the pointer to struct can_frame is NULL. This is actually handled everywhere inside ctucan_err_interrupt() except for the only place. Add the missed NULL check. Found by Linux Verification Center (linuxtesting.org) with SVACE static analysis tool.

References (6)

Core 6

Core References

Mailing List

https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html

Patch

https://git.kernel.org/stable/c/84b9ac59978a6a4e0812d1c938fad97306272cef

Patch

https://git.kernel.org/stable/c/e505b83b9ee6aa0ae2f4395f573a66579ae403fb

Patch

https://git.kernel.org/stable/c/b0e592dd46a0a952b41c3bf6c963afdd6a42b526

Patch

https://git.kernel.org/stable/c/e7e2e2318b1f085044126ba553a4e619842fc36d

Patch

https://git.kernel.org/stable/c/9bd24927e3eeb85642c7baa3b28be8bea6c2a078

Scores

CVSS v3 5.5

EPSS 0.0020

EPSS Percentile 10.1%

Attack Vector LOCAL

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-476

Status published

Products (18)

linux/Kernel 5.19.0 - 6.1.129linux

linux/Kernel 6.13.0 - 6.13.4linux

linux/Kernel 6.2.0 - 6.6.79linux

linux/Kernel 6.7.0 - 6.12.16linux

Linux/Linux < 5.19

Linux/Linux 2dcb8e8782d8e4c38903bf37b1a24d3ffd193da7 - 84b9ac59978a6a4e0812d1c938fad97306272cef

Linux/Linux 2dcb8e8782d8e4c38903bf37b1a24d3ffd193da7 - 9bd24927e3eeb85642c7baa3b28be8bea6c2a078

Linux/Linux 2dcb8e8782d8e4c38903bf37b1a24d3ffd193da7 - b0e592dd46a0a952b41c3bf6c963afdd6a42b526

Linux/Linux 2dcb8e8782d8e4c38903bf37b1a24d3ffd193da7 - e505b83b9ee6aa0ae2f4395f573a66579ae403fb

Linux/Linux 2dcb8e8782d8e4c38903bf37b1a24d3ffd193da7 - e7e2e2318b1f085044126ba553a4e619842fc36d

... and 8 more

Published Feb 27, 2025

Tracked Since Feb 18, 2026