r0 = openat(0xffffffffffffffff, &(0x7f0000000280)='/proc/self/exe\x00', 0x0, 0x0)
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
sendfile(r1, r0, 0x0, 0x100000001)