CVE-2025-39764
Gravedad:
Pendiente de análisis
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
11/09/2025
Última modificación:
15/09/2025
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
netfilter: ctnetlink: remove refcounting in expectation dumpers<br />
<br />
Same pattern as previous patch: do not keep the expectation object<br />
alive via refcount, only store a cookie value and then use that<br />
as the skip hint for dump resumption.<br />
<br />
AFAICS this has the same issue as the one resolved in the conntrack<br />
dumper, when we do<br />
if (!refcount_inc_not_zero(&exp->use))<br />
<br />
to increment the refcount, there is a chance that exp == last, which<br />
causes a double-increment of the refcount and subsequent memory leak.



