CVE-2026-72449

In the Linux kernel, the following vulnerability has been resolved:

drm/amdkfd: fix listdel corruption in kfdcriuresumesvm

The cleanup tail of kfdcriuresumesvm() walks svms->criusvmmetadatalist and kfree()s each struct criusvmmetadata without removing it from the list. The list head is left pointing at freed kmalloc-96 objects.

A second AMDKFDIOCCRIUOP from the same process re-enters: listempty() reads the dangling ->next (use-after-free), the loop walks freed entries, and each is kfree()'d again (double-free). This is reachable by an unprivileged render-group user via /dev/kfd with no capabilities required.

Add listdel() before the kfree() so the list is properly emptied. The listforeachentry_safe() iterator already caches the next pointer, so unlinking during the walk is safe.

(cherry picked from commit 6322d278a298e2c1430b9d2697743d3a04b788b1)