CVE-2026-68085
Gravedad CVSS v3.1:
ALTA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
10/08/2026
Última modificación:
17/08/2026
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
Bluetooth: hci_uart: clear HCI_UART_SENDING when write_work is canceled<br />
<br />
HCI_UART_SENDING bit in tx_state means write_work is pending and blocks<br />
queueing it again. Currently this bit is not cleared when canceling the<br />
work in hci_uart_close(), which blocks future writes when device is<br />
reopened later if write_work was pending.<br />
<br />
Fix by clearing HCI_UART_SENDING when canceling the work.<br />
<br />
Also make clearing of tx_skb safe by using disable_work_sync +<br />
enable_work instead of just cancel_work_sync. hci_uart_flush() purges<br />
the proto tx queue so we can cancel the pending write_work there,<br />
instead of doing it just in hci_uart_close(). Re-enable and possibly<br />
requeue the work after queue flush.
Impacto
Puntuación base 3.x
8.00
Gravedad 3.x
ALTA