CVE-2025-21940 Details
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)
A NULL pointer dereference vulnerability has been identified in the Linux kernel's KFD (Kernel Fusion Driver) component. This issue arises when the KFD queue IOCTL is used, specifically during the acquisition of buffers, leading to a potential crash or undefined behavior.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Oct 1, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/33eb8041c5d6c19d46e7bfd23a031844336afd80 | kernel.org | Patch |
| https://git.kernel.org/stable/c/c3cbeafb4e0001d9146df50b470885e02664f3c7 | kernel.org | Patch |
| https://git.kernel.org/stable/c/fd617ea3b79d2116d53f76cdb5a3601c0ba6e42f | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
| CWE-476 | NULL Pointer Dereference | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.12, < 6.12.19 >= 6.13, < 6.13.7 6.14 rc1 6.14 rc2 6.14 rc3 6.14 rc4 6.14 rc5 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Oct 1, 2025 | CVE Modified | CISA-ADP |
| Apr 10, 2025 | Initial Analysis | [email protected] |
| Apr 1, 2025 | New CVE Received | kernel.org |