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CVE-2025-21940

drm/amdkfd: Fix NULL Pointer Dereference in KFD queue

MEDIUM
5.5
CVSS Score
Published: April 1, 2025 at 03:41 PM UTC
Updated: June 17, 2026 at 08:44 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix NULL Pointer Dereference in KFD queue Through KFD IOCTL Fuzzing we encountered a NULL pointer derefrence when calling kfd_queue_acquire_buffers. (cherry picked from commit 049e5bf3c8406f87c3d8e1958e0a16804fa1d530)

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.12 ≤ v < 6.12.196.12 ≤ v < 6.13.76.12 ≤ v < 6.146.13 ≤ v < 6.13.76.14 rc16.14 rc26.14 rc36.14 rc46.14 rc5629568d25fea8ece4f65073f039aeef4e240ab67
Vendor states this is fixed in 33eb8041c5d6c19d46e7bfd23a031844336afd80 (fixed)
Vendor states this is fixed in c3cbeafb4e0001d9146df50b470885e02664f3c7 (fixed)
Vendor states this is fixed in fd617ea3b79d2116d53f76cdb5a3601c0ba6e42f (fixed)
Vendor states this is fixed in 6.12 (unaffected)
Vendor states this is fixed in 6.12.19 (unaffected)
Vendor states this is fixed in 6.13.7 (unaffected)
Vendor states this is fixed in 6.14 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/33eb8041c5d6c19d46e7bfd23a031844336afd80
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c3cbeafb4e0001d9146df50b470885e02664f3c7
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/fd617ea3b79d2116d53f76cdb5a3601c0ba6e42f

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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