r0 = syz_open_procfs(0x0, &(0x7f0000009100)='net/ip_tables_targets\x00') preadv(r0, &(0x7f000000e6c0)=[{&(0x7f000000d100)=""/4096, 0x1000}], 0x1, 0x7ceb, 0x0)