Bug 2363495 (CVE-2022-49864)

Summary: CVE-2022-49864 kernel: drm/amdkfd: Fix NULL pointer dereference in svm_migrate_to_ram()
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
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Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel's AMD Kernel Fusion Driver (AMDKFD). In specific error conditions, an object holding a NULL value is used, causing a NULL pointer dereference and resulting in a denial of service.
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Description OSIDB Bzimport 2025-05-01 15:06:59 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/amdkfd: Fix NULL pointer dereference in svm_migrate_to_ram()

./drivers/gpu/drm/amd/amdkfd/kfd_migrate.c:985:58-62: ERROR: p is NULL but dereferenced.
Comment 1 Avinash Hanwate 2025-05-02 05:27:17 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025050148-CVE-2022-49864-a6b3@gregkh/T