r0 = openat$procfs(0xffffffffffffff9c, &(0x7f0000000140)='/proc/keys\x00', 0x0, 0x0)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$inet6(r1, &(0x7f0000000080)={0xa, 0x0, 0x0, @empty}, 0x1c)
sendfile(r1, r0, 0x0, 0x3fffffffffffc)