CVE-2026-63971
Gravedad CVSS v3.1:
ALTA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
19/07/2026
Última modificación:
20/07/2026
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
sctp: fix race between sctp_wait_for_connect and peeloff<br />
<br />
sctp_wait_for_connect() drops and re-acquires the socket lock while<br />
waiting for the association to reach ESTABLISHED state. During this<br />
window, another thread can peeloff the association to a new socket via<br />
getsockopt(SCTP_SOCKOPT_PEELOFF), changing asoc->base.sk. After<br />
re-acquiring the old socket lock, sctp_wait_for_connect() returns<br />
success without noticing the migration — the caller then accesses<br />
the association under the wrong lock in sctp_datamsg_from_user().<br />
<br />
Add the same sk != asoc->base.sk check that sctp_wait_for_sndbuf()<br />
already has, returning an error if the association was migrated while<br />
we slept.
Impacto
Puntuación base 3.x
7.80
Gravedad 3.x
ALTA
Referencias a soluciones, herramientas e información
- https://git.kernel.org/stable/c/0e0d5bc76fd4267a71334fcc8f1a5fbcf997845d
- https://git.kernel.org/stable/c/6140cfa721451fa6e18e134e709703c2bf34d0fb
- https://git.kernel.org/stable/c/634a9af8a26a84d8b0d7b3b643204b344b42d9fb
- https://git.kernel.org/stable/c/68667ee4c7dadf7f63167234e2a1af09b3f7874e
- https://git.kernel.org/stable/c/7d2038d4b80166f7bead8d07eba3b97405816c21
- https://git.kernel.org/stable/c/8e9b56051d24540cfbf39194618708c4a7633549
- https://git.kernel.org/stable/c/bcfeac79af740735ace44008b4a11b8e5add20f5
- https://git.kernel.org/stable/c/f14fe6395a8b3d961a61e138ad7b36ba3626dd4e



