Medium 5.5Published Sep 5, 2025

CVE-2025-39706drm/amdkfd: Destroy KFD debugfs after destroy KFD wq

Updated under an hour ago (Oct 27, 2026, 1:40 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: May 12, 2026
First seen by InfoSec Signals: Oct 19, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 4a488a7ad71401169cecee75dc94bcce642e2c53 before fc35c955da799ba62f6f977d58e0866d0251e3f8; from 4a488a7ad71401169cecee75dc94bcce642e2c53 before 74ee7445c3b61c3bd899a54bd82c1982cb3a8206; from 4a488a7ad71401169cecee75dc94bcce642e2c53 before 96609a51e6134542bf90e053c2cd2fe4f61ebce3; from 4a488a7ad71401169cecee75dc94bcce642e2c53 before 910735ded17cc306625e7e1cdcc8102f7ac60994; 4a488a7ad71401169cecee75dc94bcce642e2c53 builds before 2e58401a24e7b2d4ec619104e1a76590c1284a4c	CNA record
Siemens SIMATIC CN 4100 siemens:simatic_cn_4100 (from the name)	before V5.0	CISA ADP
linux linux_kernel linux:linux_kernel	from 3.19 before 6.1.149; from 6.2 before 6.6.103; from 6.7 before 6.12.44; from 6.13 before 6.16.4	NVD
debian debian_linux debian:debian_linux	11.0	NVD

References

References

https://git.kernel.org/stable/c/fc35c955da799ba62f6f977d58e0866d0251e3f8	patch
https://git.kernel.org/stable/c/74ee7445c3b61c3bd899a54bd82c1982cb3a8206	patch
https://git.kernel.org/stable/c/96609a51e6134542bf90e053c2cd2fe4f61ebce3	patch
https://git.kernel.org/stable/c/910735ded17cc306625e7e1cdcc8102f7ac60994	patch
https://git.kernel.org/stable/c/2e58401a24e7b2d4ec619104e1a76590c1284a4c	patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html	mailing-list, third-party-advisory
https://cert-portal.siemens.com/productcert/html/ssa-032379.html

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.