CVE-2025-39706
Gravedad:
Pendiente de análisis
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
05/09/2025
Última modificación:
08/09/2025
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
drm/amdkfd: Destroy KFD debugfs after destroy KFD wq<br />
<br />
Since KFD proc content was moved to kernel debugfs, we can&#39;t destroy KFD<br />
debugfs before kfd_process_destroy_wq. Move kfd_process_destroy_wq prior<br />
to kfd_debugfs_fini to fix a kernel NULL pointer problem. It happens<br />
when /sys/kernel/debug/kfd was already destroyed in kfd_debugfs_fini but<br />
kfd_process_destroy_wq calls kfd_debugfs_remove_process. This line<br />
debugfs_remove_recursive(entry->proc_dentry);<br />
tries to remove /sys/kernel/debug/kfd/proc/ while<br />
/sys/kernel/debug/kfd is already gone. It hangs the kernel by kernel<br />
NULL pointer.<br />
<br />
(cherry picked from commit 0333052d90683d88531558dcfdbf2525cc37c233)
Impacto
Referencias a soluciones, herramientas e información
- https://git.kernel.org/stable/c/2e58401a24e7b2d4ec619104e1a76590c1284a4c
- https://git.kernel.org/stable/c/74ee7445c3b61c3bd899a54bd82c1982cb3a8206
- https://git.kernel.org/stable/c/910735ded17cc306625e7e1cdcc8102f7ac60994
- https://git.kernel.org/stable/c/96609a51e6134542bf90e053c2cd2fe4f61ebce3
- https://git.kernel.org/stable/c/fc35c955da799ba62f6f977d58e0866d0251e3f8