r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='net/route\x00')
preadv(r0, &(0x7f0000000200)=[{0x0, 0x1d}, {&(0x7f0000000240)=""/199, 0xc7}, {&(0x7f0000000340)=""/156, 0xf4}], 0x3, 0x0, 0x0)