CVE-2025-39706

MediumCVSS 5.5/10Last modified Oct 19, 2026

Description

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)

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

VendorProductVersions
LinuxLinux>= 4a488a7ad71401169cecee75dc94bcce642e2c53, < fc35c955da799ba62f6f977d58e0866d0251e3f8; >= 4a488a7ad71401169cecee75dc94bcce642e2c53, < 74ee7445c3b61c3bd899a54bd82c1982cb3a8206; >= 4a488a7ad71401169cecee75dc94bcce642e2c53, < 96609a51e6134542bf90e053c2cd2fe4f61ebce3; >= 4a488a7ad71401169cecee75dc94bcce642e2c53, < 910735ded17cc306625e7e1cdcc8102f7ac60994; >= 4a488a7ad71401169cecee75dc94bcce642e2c53, < 2e58401a24e7b2d4ec619104e1a76590c1284a4c
LinuxLinux3.19
SiemensSIMATIC CN 4100< V5.0

References

Timeline

Published
Sep 5, 2025
Last modified
Oct 19, 2026
NVD status
Modified

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CVE-2025-39706: Medium severity, CVSS 5.5 | Vulnix