yyc12345/stb
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Check a return value for errors.

Browse Source 
Catches bad input data found during fuzzing.
This commit is contained in:
Ryan C. Gordon 2020-04-28 10:37:30 -04:00
parent b5d2296d5d
commit eb4b057f0d
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
stb_image.h
View File

@ -2168,6 +2168,7 @@ static int stbi__jpeg_decode_block_prog_dc(stbi__jpeg *j, short data[64], stbi__
// first scan for DC coefficient, must be first // first scan for DC coefficient, must be first
memset(data,0,64*sizeof(data[0])); // 0 all the ac values now memset(data,0,64*sizeof(data[0])); // 0 all the ac values now
t = stbi__jpeg_huff_decode(j, hdc); t = stbi__jpeg_huff_decode(j, hdc);
if (t == -1) return stbi__err("can't merge dc and ac", "Corrupt JPEG");
diff = t ? stbi__extend_receive(j, t) : 0; diff = t ? stbi__extend_receive(j, t) : 0;
dc = j->img_comp[b].dc_pred + diff; dc = j->img_comp[b].dc_pred + diff;