🛡️ AZL-66989 — kernel

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

CVE-2025-39706 affecting package kernel for versions less than 6.6.104.2-1

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 software

AZL-66989 is recorded against 1 package.

  • kernel (fixed in 6.6.104.2-1)

Timeline and source

Published on 5 September 2025 and last revised on 21 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2025-09-05
Updated 2026-08-12
Modified 2026-04-21
Fix URL N/A

Affected Packages

Software From version Fixed in
kernel — 6.6.104.2-1

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