r0 = socket$inet_udp(0x2, 0x2, 0x0)
connect$inet(r0, &(0x7f0000000100)={0x2, 0x0, @local}, 0x10)
r1 = openat$procfs(0xffffffffffffff9c, &(0x7f0000000140)='/proc/locks\x00', 0x0, 0x0)
sendfile(r0, r1, 0x0, 0x6)