r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
socket$inet6_tcp(0xa, 0x1, 0x0)
bind$inet6(r0, &(0x7f0000000140)={0xa, 0x0, 0x8, @ipv4={'\x00', '\xff\xff', @private=0xa010101}, 0x20}, 0x1c)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e20, 0x0, @ipv4={'\x00', '\xff\xff', @empty}}, 0x1c)
connect$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20, 0x0, @empty}, 0x1c)
setsockopt$inet6_tcp_int(r0, 0x6, 0xc, &(0x7f00000000c0)=0xb, 0x4)
r1 = pidfd_getfd(0xffffffffffffffff, 0xffffffffffffffff, 0x0)
accept4$inet6(r1, &(0x7f0000000180)={0xa, 0x0, 0x0, @loopback}, &(0x7f00000002c0)=0x1c, 0x800)
perf_event_open(0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)