drm/amdkfd: Destroy KFD debugfs after destroy KFD wq
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-476.
Summary
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)
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 3.19 and later | 6.1.149, 6.6.103, 6.12.44, 6.16.4, 6.17 | Patch available | CNA |
- Linux VendorLinux Affected 3.19 and later Fixed in 6.1.149, 6.6.103, 6.12.44, 6.16.4, 6.17 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.149, 6.6.103, 6.12.44, 6.16.4, 6.17
Vendor assessments
Red Hat
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2025-39706
- 2026-10-03 Alias added: GHSA-8v4r-83gc-j76m
References
Patch 5
- https://git.kernel.org/stable/c/fc35c955da799ba62f6f977d58e0866d0251e3f8
- https://git.kernel.org/stable/c/74ee7445c3b61c3bd899a54bd82c1982cb3a8206
- https://git.kernel.org/stable/c/96609a51e6134542bf90e053c2cd2fe4f61ebce3
- https://git.kernel.org/stable/c/910735ded17cc306625e7e1cdcc8102f7ac60994
- https://git.kernel.org/stable/c/2e58401a24e7b2d4ec619104e1a76590c1284a4c
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2025-39706 · CVE Program
- CVE-2025-39706 · NVD
- FIRST EPSS
- GHSA-8v4r-83gc-j76m · GitHub Advisory Database · CC BY 4.0
- CVE-2025-39706 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences