CVE-2026-68101

Summary

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

drm/amdgpu: fix check in amdgpu_hmm_invalidate_gfx

For a short moment during alloc/free the userptr BO is not part of his VM, so bo->vm_bo can be NULL.

Keep a reference to the VM root PD as parent of the userptr BO so that we can always use that to wait for all submissions of the VM instead of only the one involving the userptr BO.

(cherry picked from commit 631849ff5d603841e74f19f4a5e30fe1f7d7cf30)

Affected Software

VendorProductVersion RangeStatus
LinuxLinux91250893cbaa25c86872deca95a540d08de1f91e < 52f650963d8825e97a0ccdd2b616f8a01d9d3d38affected
LinuxLinux7.2-rc1affected
LinuxLinux0 < 7.2-rc1unaffected
LinuxLinux7.2-rc2 <= *unaffected

Weaknesses

References