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Unrated severityNVD Advisory· Published Dec 24, 2025· Updated Apr 15, 2026

CVE-2025-68732

CVE-2025-68732

Description

In the Linux kernel, the following vulnerability has been resolved:

gpu: host1x: Fix race in syncpt alloc/free

Fix race condition between host1x_syncpt_alloc() and host1x_syncpt_put() by using kref_put_mutex() instead of kref_put() + manual mutex locking.

This ensures no thread can acquire the syncpt_mutex after the refcount drops to zero but before syncpt_release acquires it. This prevents races where syncpoints could be allocated while still being cleaned up from a previous release.

Remove explicit mutex locking in syncpt_release as kref_put_mutex() handles this atomically.

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Affected products

179

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