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Fix potential crash in PNG_Read

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Happens in certain situtations
This commit is contained in:
NepDisk 2025-11-21 09:18:47 -05:00
parent 4dd7af8cf9
commit 5f078a459b
1 changed files with 2 additions and 2 deletions
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4
src/r_picformats.c
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@ -997,9 +997,9 @@ static png_bytep *PNG_Read(
// color is present on the image, the palette flag is disabled.
if (usepal)
{
png_get_tRNS(png_ptr, png_info_ptr, &trans, &trans_num, &trans_values);
boolean valid = png_get_tRNS(png_ptr, png_info_ptr, &trans, &trans_num, &trans_values);
if (trans && trans_num > 0)
if (valid && trans && trans_num > 0)
{
INT32 i;
for (i = 0; i < trans_num; i++)