r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000440)='net/ipv6_route\x00')
syz_io_uring_submit(0x0, 0x0, &(0x7f0000000580)=@IORING_OP_READ=@pass_buffer={0x16, 0x0, 0x0, @fd_index, 0x3, 0x0}, 0x0)
preadv(r0, &(0x7f0000000480)=[{&(0x7f0000000000)=""/129, 0x81}, {&(0x7f00000000c0)=""/169, 0xa9}, {&(0x7f0000000180)=""/78, 0x4e}, {&(0x7f0000000200)=""/5, 0x15}, {&(0x7f0000000240)=""/44, 0x2c}, {&(0x7f0000000280)=""/201, 0xca}, {&(0x7f0000000500)=""/70, 0x46}], 0x21, 0x0, 0x0)