r0 = openat$tcp_mem(0xffffffffffffff9c, &(0x7f0000000080)='/proc/sys/net/ipv4/tcp_wmem\x00', 0x1, 0x0)
r1 = fsopen(&(0x7f00000000c0)='rpc_pipefs\x00', 0x0)
dup2(r0, r1)