CVE-2026-68258

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

State: Published
Severity: 7.1 High
Published: Aug 10, 2026
Updated: Oct 30, 2026
Reserved: Jul 30, 2026

Read the record on cve.org

Description

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)

Scores

CVSS	Score	Vector	Source
3.1	7.1 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H	Linux

Weaknesses

CWE-20 Improper Input Validation

Affected Products

Product	Versions
LinuxLinux	42c6c48214b726c30918e8dc80e2168607d13ae4 to before dcd8f5e049ff31e73f91fbccd9a9b9d725a2ff3eAffected 42c6c48214b726c30918e8dc80e2168607d13ae4 to before 2b817c0dfc653bf33d0e0ab8155ff7807a617487Affected 42c6c48214b726c30918e8dc80e2168607d13ae4 to before 1956aa246c65c5895589664ccb37d0710aa8d304Affected 42c6c48214b726c30918e8dc80e2168607d13ae4 to before fd1691ec62701c982ea32e749678988c67fd4c21Affected 42c6c48214b726c30918e8dc80e2168607d13ae4 to before cc10a5839756982504ee8568fc1e1625962ab7f8Affected 42c6c48214b726c30918e8dc80e2168607d13ae4 to before 47ea05f246bebc81c7796f56265cffd812cf0601Affected
LinuxLinux	5.18Affected before 5.18Not affected 6.1.191 through 6.1.Not affected 6.6.160 through 6.6.Not affected 6.12.114 through 6.12.Not affected 6.18.42 through 6.18.Not affected 7.1.6 through 7.1.*Not affected 7.2 and laterNot affected

Product

Versions

LinuxLinux

42c6c48214b726c30918e8dc80e2168607d13ae4 to before dcd8f5e049ff31e73f91fbccd9a9b9d725a2ff3eAffected
42c6c48214b726c30918e8dc80e2168607d13ae4 to before 2b817c0dfc653bf33d0e0ab8155ff7807a617487Affected
42c6c48214b726c30918e8dc80e2168607d13ae4 to before 1956aa246c65c5895589664ccb37d0710aa8d304Affected
42c6c48214b726c30918e8dc80e2168607d13ae4 to before fd1691ec62701c982ea32e749678988c67fd4c21Affected
42c6c48214b726c30918e8dc80e2168607d13ae4 to before cc10a5839756982504ee8568fc1e1625962ab7f8Affected
42c6c48214b726c30918e8dc80e2168607d13ae4 to before 47ea05f246bebc81c7796f56265cffd812cf0601Affected

LinuxLinux

5.18Affected
before 5.18Not affected
6.1.191 through 6.1.*Not affected
6.6.160 through 6.6.*Not affected
6.12.114 through 6.12.*Not affected
6.18.42 through 6.18.*Not affected
7.1.6 through 7.1.*Not affected
7.2 and laterNot affected

References

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