CVE-2026-63975
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 />
Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp<br />
<br />
If dcid is received for an already-assigned destination CID the spec<br />
requires that both channels to be discarded, but calling l2cap_chan_del<br />
may invalidate the tmp cursor created by list_for_each_entry_safe and<br />
in fact it is the wrong procedure as the chan->dcid may be assigned<br />
previously it really needs to be disconnected.<br />
<br />
Calling l2cap_chan_clone directly may still lead to l2cap_chan_del so<br />
instead schedule l2cap_chan_timeout with delay 0 to close the channel<br />
asynchronously.
Impacto
Puntuación base 3.x
8.80
Gravedad 3.x
ALTA
Referencias a soluciones, herramientas e información
- https://git.kernel.org/stable/c/291eec1041c918c460dc9702e44edd17794b4a4b
- https://git.kernel.org/stable/c/3c8eaa91eb433c450426539290be4ffe282e9f00
- https://git.kernel.org/stable/c/41c2713b204e6cb6a94587bc6bf6935107df5479
- https://git.kernel.org/stable/c/41e29548b5e8b5e5fcf708786b3bea67cab107fa
- https://git.kernel.org/stable/c/6319b38fe69f56ed95680ade485b957a53fff642
- https://git.kernel.org/stable/c/d153b8898c0051eb8b6a083b35cbe304a5886bd5
- https://git.kernel.org/stable/c/e6833e737a51db1e5ea0401322acf5e22abd8be6
- https://git.kernel.org/stable/c/ecfed1e0d8efecad6737a0d83e21d2fd021d8c48



