r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000100)='net/fib_trie\x00')
readv(r0, &(0x7f0000000400)=[{&(0x7f00000001c0)=""/178, 0xb2}, {&(0x7f0000000280)=""/97, 0x61}], 0x2)