CVE-2026-68140
Gravedad CVSS v3.1:
ALTA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
10/08/2026
Última modificación:
19/08/2026
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
net/iucv: fix use-after-free of a severed iucv_path<br />
<br />
af_iucv queues not-yet-received message notifications on iucv->message_q,<br />
each holding a raw pointer to the connection&#39;s iucv_path. When the peer<br />
severs the connection, iucv_sever_path() frees that path with<br />
iucv_path_free() but leaves the notifications queued. A later recvmsg()<br />
drains message_q via iucv_process_message_q() and hands the stale path to<br />
message_receive() -- a use-after-free of the freed iucv_path.<br />
<br />
Drop the queued notifications when the path is severed; once the path is<br />
gone they can no longer be received. This also frees the notifications<br />
leaked when a socket is closed with messages still queued.
Impacto
Puntuación base 3.x
8.80
Gravedad 3.x
ALTA
Referencias a soluciones, herramientas e información
- https://git.kernel.org/stable/c/23658b350b4107e8292045c2044983fd426fa15d
- https://git.kernel.org/stable/c/5f08c5e50bcb4680069bd3f9edd5728308816ded
- https://git.kernel.org/stable/c/900cd6d8119b7f3ae5c4bf82f922ff5957df43db
- https://git.kernel.org/stable/c/99ddb33748698296a6f17b9b34aa3d16a406bb3c
- https://git.kernel.org/stable/c/a5bbaddf69853117f28173c3f5c8fc14c6b2ec82
- https://git.kernel.org/stable/c/be7cc4656eb1f54029610e82d1f0fdd3f9b5ec0a
- https://git.kernel.org/stable/c/c24faf11bd31bfe0500aca12cbdd5a573a954a5d
- https://git.kernel.org/stable/c/f579582c03ed526281a8450159baf1d35099a85f


