CVE-2026-43178
Gravedad:
Pendiente de análisis
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
06/05/2026
Última modificación:
06/05/2026
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
procfs: fix possible double mmput() in do_procmap_query()<br />
<br />
When user provides incorrectly sized buffer for build ID for PROCMAP_QUERY<br />
we return with -ENAMETOOLONG error. After recent changes this condition<br />
happens later, after we unlocked mmap_lock/per-VMA lock and did mmput(),<br />
so original goto out is now wrong and will double-mmput() mm_struct. Fix<br />
by jumping further to clean up only vm_file and name_buf.



