CVE-2025-68732

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
24/12/2025
Last modified:
19/01/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> gpu: host1x: Fix race in syncpt alloc/free<br /> <br /> Fix race condition between host1x_syncpt_alloc()<br /> and host1x_syncpt_put() by using kref_put_mutex()<br /> instead of kref_put() + manual mutex locking.<br /> <br /> This ensures no thread can acquire the<br /> syncpt_mutex after the refcount drops to zero<br /> but before syncpt_release acquires it.<br /> This prevents races where syncpoints could<br /> be allocated while still being cleaned up<br /> from a previous release.<br /> <br /> Remove explicit mutex locking in syncpt_release<br /> as kref_put_mutex() handles this atomically.

Impact