r0 = socket$inet_udp(0x2, 0x2, 0x0)
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x2)
r1 = openat$procfs(0xffffffffffffff9c, &(0x7f00000003c0)='/proc/key-users\x00', 0x0, 0x0)
sendfile(r0, r1, 0x0, 0x0)