Re: [PATCH v2 11/24] pack-bitmap.c: introduce 'nth_bitmap_object_oid()'

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On Mon, Jun 21, 2021 at 06:25:26PM -0400, Taylor Blau wrote:
>  static int load_bitmap_entries_v1(struct bitmap_index *index)
>  {
>  	uint32_t i;
> @@ -242,9 +249,7 @@ static int load_bitmap_entries_v1(struct bitmap_index *index)
>  		xor_offset = read_u8(index->map, &index->map_pos);
>  		flags = read_u8(index->map, &index->map_pos);
>
> -		if (nth_packed_object_id(&oid, index->pack, commit_idx_pos) < 0)
> -			return error("corrupt ewah bitmap: commit index %u out of range",
> -				     (unsigned)commit_idx_pos);
> +		nth_bitmap_object_oid(index, &oid, commit_idx_pos);

Oops. I was reading code in this area and noticed that this patch drops
the check introduced by c6b0c3910c (pack-bitmap.c: check reads more
aggressively when loading, 2020-12-08).

I fixed it up locally by restoring the check (but on the new function
nth_bitmap_object_oid() instead), and will send it in a reroll.

Thanks,
Taylor



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