CVE-2026-68258

Summary

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

drm/amdkfd: Check bounds on CRIU restore queue type and mqd size

We weren't checking whether the values provided in the private data in kfd CRIU restore were within bounds.

For queue type, add a KFD_QUEUE_TYPE_MAX and ensure the provided type is less than it.

For mqd_size, add new function mqd_size_from_queue_type and confirm that the provided mqd_size matches expectations.

(cherry picked from commit f19d8086f6644083c913d70bfdeee20e1b6f46a5)

Affected Software

VendorProductVersion RangeStatus
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < fd1691ec62701c982ea32e749678988c67fd4c21affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < cc10a5839756982504ee8568fc1e1625962ab7f8affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 47ea05f246bebc81c7796f56265cffd812cf0601affected
LinuxLinux0 < 6.18.42affected
LinuxLinux0 < 7.1.6affected
LinuxLinux6.18.42 <= 6.18.*unaffected
LinuxLinux7.1.6 <= 7.1.*unaffected
LinuxLinux7.2-rc3 <= *unaffected

Weaknesses

References