CVEvulnerability
CVE-2025-39706
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2025-09-05
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476
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)
Affected configurations
• linux linux kernel (>= 3.19 < 6.1.149)
• linux linux kernel (>= 6.2 < 6.6.103)
• linux linux kernel (>= 6.7 < 6.12.44)
• linux linux kernel (>= 6.13 < 6.16.4)
• debian debian linux 11.0
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- 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 Mailing List, Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html cert-portal.siemens.com