CVE-2026-74416

drm/radeon: fix memory leak in radeon_ring_restore() on lock failure

State: Published
Severity: Not scored
Published: Aug 15, 2026
Updated: Aug 17, 2026
Reserved: Aug 15, 2026

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	55d7c22192becd0ec827a6901899ff56fa985658 to before 63912418f1fbb6456ea04bbcdf8f4d5090d23350Affected 55d7c22192becd0ec827a6901899ff56fa985658 to before 919e3e398bf301c6418dffdcd5e5c4fd9be39cf7Affected 55d7c22192becd0ec827a6901899ff56fa985658 to before 07c213f3499dd72e2922c1c73fe9ffea24874befAffected 55d7c22192becd0ec827a6901899ff56fa985658 to before 1c9ba32308c02c198c378fcdf06be9ffc3111147Affected 55d7c22192becd0ec827a6901899ff56fa985658 to before eecfb76129ebef7e3aa41e18a4668cd91dfc6267Affected 55d7c22192becd0ec827a6901899ff56fa985658 to before 06dc892561f5a08b2493c34c8ec2cb94dea33159Affected 55d7c22192becd0ec827a6901899ff56fa985658 to before ccc42187fc2d0720947a63ce1b9e399d2c068ff4Affected 55d7c22192becd0ec827a6901899ff56fa985658 to before 82f1d6042611d45b8b9de423bbcb4e0ced9ec62bAffected
LinuxLinux	3.6Affected before 3.6Not affected 5.10.261 through 5.10.Not affected 5.15.212 through 5.15.Not affected 6.1.178 through 6.1.Not affected 6.6.145 through 6.6.Not affected 6.12.97 through 6.12.Not affected 6.18.40 through 6.18.Not affected 7.1.5 through 7.1.*Not affected 7.2 and laterNot affected

Product

Versions

LinuxLinux

55d7c22192becd0ec827a6901899ff56fa985658 to before 63912418f1fbb6456ea04bbcdf8f4d5090d23350Affected
55d7c22192becd0ec827a6901899ff56fa985658 to before 919e3e398bf301c6418dffdcd5e5c4fd9be39cf7Affected
55d7c22192becd0ec827a6901899ff56fa985658 to before 07c213f3499dd72e2922c1c73fe9ffea24874befAffected
55d7c22192becd0ec827a6901899ff56fa985658 to before 1c9ba32308c02c198c378fcdf06be9ffc3111147Affected
55d7c22192becd0ec827a6901899ff56fa985658 to before eecfb76129ebef7e3aa41e18a4668cd91dfc6267Affected
55d7c22192becd0ec827a6901899ff56fa985658 to before 06dc892561f5a08b2493c34c8ec2cb94dea33159Affected
55d7c22192becd0ec827a6901899ff56fa985658 to before ccc42187fc2d0720947a63ce1b9e399d2c068ff4Affected
55d7c22192becd0ec827a6901899ff56fa985658 to before 82f1d6042611d45b8b9de423bbcb4e0ced9ec62bAffected

LinuxLinux

3.6Affected
before 3.6Not affected
5.10.261 through 5.10.*Not affected
5.15.212 through 5.15.*Not affected
6.1.178 through 6.1.*Not affected
6.6.145 through 6.6.*Not affected
6.12.97 through 6.12.*Not affected
6.18.40 through 6.18.*Not affected
7.1.5 through 7.1.*Not affected
7.2 and laterNot affected

References

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