CVE-2025-68732
gpu: host1x: Fix race in syncpt alloc/free
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Dec 24, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
f5ba33fb9690566c382624637125827b5512e766 < ca9388fba50dac2eb71c13702b7022a801bef90e f5ba33fb9690566c382624637125827b5512e766 < 4aeaece518fa4436af93d1d8b786200d9656ff4b f5ba33fb9690566c382624637125827b5512e766 < 6245cce711e2cdb2cc75c0bb8632952e36f8c972 f5ba33fb9690566c382624637125827b5512e766 < 4e6e07ce0197aecfb6c4a62862acc93b3efedeb7 f5ba33fb9690566c382624637125827b5512e766 < d138f73ffb0c57ded473c577719e6e551b7b1f27 f5ba33fb9690566c382624637125827b5512e766 < 79197c6007f2afbfd7bcf5b9b80ccabf8483d774 f5ba33fb9690566c382624637125827b5512e766 < c7d393267c497502fa737607f435f05dfe6e3d9b
Linux / Linux
5.13
References
git.kernel.org: https://git.kernel.org/stable/c/ca9388fba50dac2eb71c13702b7022a801bef90e git.kernel.org: https://git.kernel.org/stable/c/4aeaece518fa4436af93d1d8b786200d9656ff4b git.kernel.org: https://git.kernel.org/stable/c/6245cce711e2cdb2cc75c0bb8632952e36f8c972 git.kernel.org: https://git.kernel.org/stable/c/4e6e07ce0197aecfb6c4a62862acc93b3efedeb7 git.kernel.org: https://git.kernel.org/stable/c/d138f73ffb0c57ded473c577719e6e551b7b1f27 git.kernel.org: https://git.kernel.org/stable/c/79197c6007f2afbfd7bcf5b9b80ccabf8483d774 git.kernel.org: https://git.kernel.org/stable/c/c7d393267c497502fa737607f435f05dfe6e3d9b