On Wed, May 19, 2021 at 10:55:02AM -0700, Zubin Mithra wrote: > From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx> > > L2CAP_OPTIONS shall only be used with BR/EDR modes. > > Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx> > Signed-off-by: Marcel Holtmann <marcel@xxxxxxxxxxxx> > (cherry picked from commit b86b0b150fed840c376145383ef5105116c81b0c) > Signed-off-by: Zubin Mithra <zsm@xxxxxxxxxxxx> > --- > * Syzkaller triggered a GPF with the following stacktrace: > l2cap_chan_send+0xa6e/0x1c30 net/bluetooth/l2cap_core.c:2532 > l2cap_sock_sendmsg+0x1da/0x1fd net/bluetooth/l2cap_sock.c:985 > sock_sendmsg_nosec+0x88/0xb4 net/socket.c:638 > sock_sendmsg+0x5e/0x6f net/socket.c:658 > ____sys_sendmsg+0x45c/0x5a5 net/socket.c:2298 > ___sys_sendmsg+0x13e/0x19f net/socket.c:2352 > __sys_sendmmsg+0x298/0x38c net/socket.c:2455 > __do_sys_sendmmsg net/socket.c:2484 [inline] > __se_sys_sendmmsg net/socket.c:2481 [inline] > __x64_sys_sendmmsg+0xad/0xb6 net/socket.c:2481 > do_syscall_64+0x10b/0x144 arch/x86/entry/common.c:299 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > > * This commit is present in 5.10.y and newer. 4.19.y > and older do not need this fix. Now queued up, thanks. greg k-h
