What is CVE-2025-21940?

CVE-2025-21940 is a medium-severity vulnerability in Linux, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2025-04-01.

How severe is CVE-2025-21940?

Medium severity. CVSS v3 base score is 5.5 out of 10.

NULL pointer dereference in Linux

CVE-2025-21940

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)

EPSS: 0.002 (8.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions 629568d25fea8ece4f65073f039aeef4e240ab67, 6.12, 0
Linux Linux_kernel — versions 6.14

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2025-21940?: CVE-2025-21940 is a medium-severity vulnerability in Linux, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2025-04-01.
How severe is CVE-2025-21940?: Medium severity. CVSS v3 base score is 5.5 out of 10.