CVE-2026-74416

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux55d7c22192becd0ec827a6901899ff56fa985658 < 63912418f1fbb6456ea04bbcdf8f4d5090d23350affected
LinuxLinux55d7c22192becd0ec827a6901899ff56fa985658 < 919e3e398bf301c6418dffdcd5e5c4fd9be39cf7affected
LinuxLinux55d7c22192becd0ec827a6901899ff56fa985658 < 07c213f3499dd72e2922c1c73fe9ffea24874befaffected
LinuxLinux55d7c22192becd0ec827a6901899ff56fa985658 < 1c9ba32308c02c198c378fcdf06be9ffc3111147affected
LinuxLinux55d7c22192becd0ec827a6901899ff56fa985658 < eecfb76129ebef7e3aa41e18a4668cd91dfc6267affected
LinuxLinux55d7c22192becd0ec827a6901899ff56fa985658 < 06dc892561f5a08b2493c34c8ec2cb94dea33159affected
LinuxLinux55d7c22192becd0ec827a6901899ff56fa985658 < ccc42187fc2d0720947a63ce1b9e399d2c068ff4affected
LinuxLinux55d7c22192becd0ec827a6901899ff56fa985658 < 82f1d6042611d45b8b9de423bbcb4e0ced9ec62baffected
LinuxLinux3.6affected
LinuxLinux0 < 3.6unaffected
LinuxLinux5.10.261 <= 5.10.*unaffected
LinuxLinux5.15.212 <= 5.15.*unaffected
LinuxLinux6.1.178 <= 6.1.*unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2-rc1 <= *unaffected

Weaknesses

References