drm/amdkfd: Destroy KFD debugfs after destroy KFD wq

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-39706
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-09-05 18:15:47 UTC
Updated2026-05-12 13:17:06 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Destroy KFD debugfs after destroy KFD wq Since KFD proc content was moved to kernel debugfs, we can't destroy KFD debugfs before kfd_process_destroy_wq. Move kfd_process_destroy_wq prior to kfd_debugfs_fini to fix a kernel NULL pointer problem. It happens when /sys/kernel/debug/kfd was already destroyed in kfd_debugfs_fini but kfd_process_destroy_wq calls kfd_debugfs_remove_process. This line debugfs_remove_recursive(entry->proc_dentry); tries to remove /sys/kernel/debug/kfd/proc/<pid> while /sys/kernel/debug/kfd is already gone. It hangs the kernel by kernel NULL pointer. (cherry picked from commit 0333052d90683d88531558dcfdbf2525cc37c233)

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-476

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 4a488a7ad71401169cecee75dc94bcce642e2c53 fc35c955da799ba62f6f977d58e0866d0251e3f8 git Not specified
CNA Linux Linux affected 4a488a7ad71401169cecee75dc94bcce642e2c53 74ee7445c3b61c3bd899a54bd82c1982cb3a8206 git Not specified
CNA Linux Linux affected 4a488a7ad71401169cecee75dc94bcce642e2c53 96609a51e6134542bf90e053c2cd2fe4f61ebce3 git Not specified
CNA Linux Linux affected 4a488a7ad71401169cecee75dc94bcce642e2c53 910735ded17cc306625e7e1cdcc8102f7ac60994 git Not specified
CNA Linux Linux affected 4a488a7ad71401169cecee75dc94bcce642e2c53 2e58401a24e7b2d4ec619104e1a76590c1284a4c git Not specified
CNA Linux Linux affected 3.19 Not specified
CNA Linux Linux unaffected 3.19 semver Not specified
CNA Linux Linux unaffected 6.1.149 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.103 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.44 6.12.* semver Not specified
CNA Linux Linux unaffected 6.16.4 6.16.* semver Not specified
CNA Linux Linux unaffected 6.17 * original_commit_for_fix Not specified
ADP Siemens SIMATIC CN 4100 affected V5.0 custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/96609a51e6134542bf90e053c2cd2fe4f61ebce3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/10/msg00008.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
git.kernel.org/stable/c/fc35c955da799ba62f6f977d58e0866d0251e3f8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-032379.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/2e58401a24e7b2d4ec619104e1a76590c1284a4c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/74ee7445c3b61c3bd899a54bd82c1982cb3a8206 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/910735ded17cc306625e7e1cdcc8102f7ac60994 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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