Hello: This patch was applied to bluetooth/bluetooth-next.git (master) by Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>: On Sat, 30 Aug 2025 16:03:40 -0400 you wrote: > Currently, bcsp_recv() can be called even when the BCSP protocol has not > been registered. This leads to a NULL pointer dereference, as shown in > the following stack trace: > > KASAN: null-ptr-deref in range [0x0000000000000108-0x000000000000010f] > RIP: 0010:bcsp_recv+0x13d/0x1740 drivers/bluetooth/hci_bcsp.c:590 > Call Trace: > <TASK> > hci_uart_tty_receive+0x194/0x220 drivers/bluetooth/hci_ldisc.c:627 > tiocsti+0x23c/0x2c0 drivers/tty/tty_io.c:2290 > tty_ioctl+0x626/0xde0 drivers/tty/tty_io.c:2706 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:907 [inline] > __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893 > do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] > do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 > entry_SYSCALL_64_after_hwframe+0x77/0x7f > > [...] Here is the summary with links: - [bluetooth-next] Bluetooth: bcsp: receive data only if registered https://git.kernel.org/bluetooth/bluetooth-next/c/6c7e4432e56e You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html