syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
r0 = gettid()
r1 = getpgrp(0x0)
rt_tgsigqueueinfo(r1, r0, 0x0, &(0x7f00000001c0)={0x0, 0x0, 0x4000})