Bug 2356655 (CVE-2025-21940)

Summary: CVE-2025-21940 kernel: drm/amdkfd: Fix NULL Pointer Dereference in KFD queue
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2025-04-01 16:04:39 UTC 
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)
Comment 1 Robb Gatica 2025-04-02 00:16:13 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025040135-CVE-2025-21940-f9e9@gregkh/T