CVE-2026-68101

Unknown

Last modified

CVE-2026-68101 is a vulnerability of currently unknown severity. 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).

Description

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

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 91250893cbaa25c86872deca95a540d08de1f91e, < 52f650963d8825e97a0ccdd2b616f8a01d9d3d38
LinuxLinux7.2-rc1

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-68101?
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)
How severe is CVE-2026-68101?
Severity scoring for CVE-2026-68101 is pending analysis.
How do I fix CVE-2026-68101?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST