Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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-&gt;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.