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r300: check for index overflow when translating from TGSI

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Reviewed-by: Filip Gawin <filip.gawin@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24154>
This commit is contained in:
Pavel Ondračka
2023-07-14 12:16:28 +02:00
committed by Marge Bot
parent 3b5daba32d
commit 953dd9605f
1 changed files with 8 additions and 2 deletions
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src/gallium/drivers/r300/r300_tgsi_to_rc.c
+8 -2
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@@ -144,9 +144,15 @@ static void transform_srcreg(
struct tgsi_full_src_register * src)
{
dst->File = translate_register_file(src->Register.File);
dst->Index = translate_register_index(ttr, src->Register.File, src->Register.Index);
int index = translate_register_index(ttr, src->Register.File, src->Register.Index);
/* Negative offsets to relative addressing should have been lowered in NIR */
assert(dst->Index >= 0);
assert(index >= 0);
/* Also check for overflow */
if (index >= RC_REGISTER_MAX_INDEX) {
ttr->error = true;
fprintf(stderr, "r300: Register index too high.\n");
}
dst->Index = index;
dst->RelAddr = src->Register.Indirect;
dst->Swizzle = tgsi_util_get_full_src_register_swizzle(src, 0);
dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 1) << 3;