CVE-2025-39706

In 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)

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/2e58401a24e7b2d4ec619104e1a76590c1284a4c	Patch
https://git.kernel.org/stable/c/74ee7445c3b61c3bd899a54bd82c1982cb3a8206	Patch
https://git.kernel.org/stable/c/910735ded17cc306625e7e1cdcc8102f7ac60994	Patch
https://git.kernel.org/stable/c/96609a51e6134542bf90e053c2cd2fe4f61ebce3	Patch
https://git.kernel.org/stable/c/fc35c955da799ba62f6f977d58e0866d0251e3f8	Patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html	Third Party Advisory Mailing List

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-09-05 18:15

Updated : 2026-01-08 16:22

NVD link : CVE-2025-39706

Mitre link : CVE-2025-39706

CVE.ORG link : CVE-2025-39706

JSON object : View

Products Affected

debian

debian_linux

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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