CVE-2026-43106
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 />
cachefiles: fix incorrect dentry refcount in cachefiles_cull()<br />
<br />
The patch mentioned below changed cachefiles_bury_object() to expect 2<br />
references to the &#39;rep&#39; dentry. Three of the callers were changed to<br />
use start_removing_dentry() which takes an extra reference so in those<br />
cases the call gets the expected references.<br />
<br />
However there is another call to cachefiles_bury_object() in<br />
cachefiles_cull() which did not need to be changed to use<br />
start_removing_dentry() and so was not properly considered.<br />
It still passed the dentry with just one reference so the net result is<br />
that a reference is lost.<br />
<br />
To meet the expectations of cachefiles_bury_object(), cachefiles_cull()<br />
must take an extra reference before the call. It will be dropped by<br />
cachefiles_bury_object().



