Tracker / CVE-2026-53073
CVE-2026-53073
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_ldisc: Clear HCI_UART_PROTO_INIT on error When hci_register_dev() fails in hci_uart_register_dev() HCI_UART_PROTO_INIT is not cleared before calling hu->proto->close(hu) and setting hu->hdev to NULL. This means incoming UART data will reach the protocol-specific recv handler in hci_uart_tty_receive() after resources are freed. Clear HCI_UART_PROTO_INIT with a write lock before calling hu->proto->close() and setting hu->hdev to NULL. The write lock ensures all active readers have completed and no new reader can enter the protocol recv path before resources are freed. This allows the protocol-specific recv functions to remove the "HCI_UART_REGISTERED" guard without risking a null pointer dereference if hci_register_dev() fails.
Prodotti e versioni affette
| linux | linux_kernel · 5.10.237 → 5.10.258 |
|---|---|
| linux | linux_kernel · 5.15.181 → 5.15.209 |
| linux | linux_kernel · 5.4.293 → 5.5 |
| linux | linux_kernel · 6.1.135 → 6.1.175 |
| linux | linux_kernel · 6.12.24 → 6.12.91 |
| linux | linux_kernel · 6.13.12 → 6.14 |
| linux | linux_kernel · 6.14.3 → 6.18.33 |
| linux | linux_kernel · 6.19 → 7.0.10 |
| linux | linux_kernel · 6.6.88 → 6.6.141 |