CVSS 5.5 · Medium EPSS 0,11%
Kerentanan NULL Pointer Dereference pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 5.4.293 hingga sebelum 5.5 |
| linux | linux kernel | Versi 5.10.237 hingga sebelum 5.10.258 |
| linux | linux kernel | Versi 5.15.181 hingga sebelum 5.15.209 |
| linux | linux kernel | Versi 6.1.135 hingga sebelum 6.1.175 |
| linux | linux kernel | Versi 6.6.88 hingga sebelum 6.6.141 |
| linux | linux kernel | Versi 6.12.24 hingga sebelum 6.12.91 |
| linux | linux kernel | Versi 6.13.12 hingga sebelum 6.14 |
| linux | linux kernel | Versi 6.14.3 hingga sebelum 6.18.33 |
| linux | linux kernel | Versi 6.19 hingga sebelum 7.0.10 |