UNKNOWN NVD
CVE-2026-74416
In the Linux kernel, the following vulnerability has been resolved: drm/radeon: fix memory leak in radeon_ring_restore() on lock failure radeon_ring_restore()
In the Linux kernel, the following vulnerability has been resolved:
drm/radeon: fix memory leak in radeon_ring_restore() on lock failure
radeon_ring_restore() takes ownership of the data buffer allocated by
radeon_ring_backup(). The caller (radeon_gpu_reset()) only frees it in
the non-restore branch; in the restore branch it relies on
radeon_ring_restore() to free it.
If radeon_ring_lock() fails, the function returned early without calling
kvfree(data), leaking the ring backup buffer on every GPU reset that
fails at the lock stage. During repeated GPU resets this causes
cumulative kernel memory exhaustion.
Free data before returning the error.
References
- https://git.kernel.org/stable/c/06dc892561f5a08b2493c34c8ec2cb94dea33159
- https://git.kernel.org/stable/c/07c213f3499dd72e2922c1c73fe9ffea24874bef
- https://git.kernel.org/stable/c/1c9ba32308c02c198c378fcdf06be9ffc3111147
- https://git.kernel.org/stable/c/63912418f1fbb6456ea04bbcdf8f4d5090d23350
- https://git.kernel.org/stable/c/82f1d6042611d45b8b9de423bbcb4e0ced9ec62b
This unknown severity vulnerability was published on 2026-08-15 via NVD.
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