CVE Catalog

CVE-2026-74416

Low risk· EPSS 8%
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.18%

8th percentile - higher than 8% of all known CVEs

Summary

In the Linux kernel, the drm/radeon driver's radeon_ring_restore() did not free the data buffer (allocated by radeon_ring_backup()) when radeon_ring_lock() failed. This caused a memory leak on every failed GPU reset.

Risk Assessment

Repeated GPU resets could lead to kernel memory exhaustion, resulting in system instability or denial of service.

Recommendation

Apply the kernel patch that frees the data buffer before returning the error in radeon_ring_restore().

Other vulnerabilities in Linux kernel

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Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS