CVE-2026-74469
Gravedad:
Pendiente de análisis
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
15/08/2026
Última modificación:
15/08/2026
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
sctp: prevent peer transport count overflow<br />
<br />
sctp_assoc_add_peer() increments the association&#39;s 16-bit transport_count<br />
for every new unique peer. Adding the 65,536th transport wraps the count to<br />
zero.<br />
<br />
SCTP sock_diag uses transport_count to reserve the INET_DIAG_PEERS payload,<br />
then copies one sockaddr_storage for every entry in transport_addr_list.<br />
After the wrap, a diagnostic dump reserves an empty payload and writes<br />
8 MiB of peer addresses past the skb tail.<br />
<br />
Reject a new unique peer when transport_count has reached U16_MAX. Perform<br />
the check after the existing-peer lookup so a duplicate address continues<br />
to return its existing transport at the limit.
Impacto
Referencias a soluciones, herramientas e información
- https://git.kernel.org/stable/c/09e722030e8148ba4ed1e42c6b2ea57bda9f9895
- https://git.kernel.org/stable/c/4ba5bf7ed50f235ea4581de8e7a0002f4ed287b0
- https://git.kernel.org/stable/c/546221b86ceeba0d8fec92d46a0604bb7b62be07
- https://git.kernel.org/stable/c/6201cd1d70f1670c5b31ac506e7ab2fa7b8e7f75
- https://git.kernel.org/stable/c/bd0e9289e2642f6a5c54faad304ce0f41e926d22



