r0 = getpgrp(0x0)
accept4$bt_l2cap(0xffffffffffffffff, &(0x7f0000000880)={0x1f, 0x0, @fixed}, &(0x7f0000000280)=0xe, 0x0)
r1 = pidfd_open(r0, 0x0)
pidfd_send_signal(r1, 0x0, &(0x7f0000000240)={0x0, 0x0, 0x778}, 0x0)