r0 = syz_open_dev$loop(&(0x7f0000000000), 0x0, 0x0)
r1 = openat$tcp_mem(0xffffffffffffff9c, &(0x7f00000007c0)='/proc/sys/net/ipv4/tcp_wmem\x00', 0x1, 0x0)
dup3(r0, r1, 0x0)