CVE-2024-42275: drm/client: Fix error code in drm_client_buffer_vmap_local()

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-08-17 · updated 2026-08-04
Weakness: CWE-824

Description

In the Linux kernel, the following vulnerability has been resolved: drm/client: Fix error code in drm_client_buffer_vmap_local() This function accidentally returns zero/success on the failure path. It leads to locking issues and an uninitialized *map_copy in the caller.

Affected products

Linux kernel: from 6.10 before 6.10.4; 6.11-rc1 — fixed in 6.10.4

How to fix

Upgrade to a fixed version: Linux kernel 6.10.4. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/b5fbf924f125ba3638cfdc21c0515eb7e76264ca
https://git.kernel.org/stable/c/c0f412961653237f52e2f16ee8747fb330bcf074

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