generic-library/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Fix a crash when decoding tiff by moving check

Browse Source 
for invalid header up before reading data.
Fixes issue 2500.

Patch by Daniel Kang, daniel.d.kang at gmail

Originally committed as revision 26248 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Daniel Kang 2011-01-06 22:12:55 +00:00 committed by Carl Eugen Hoyos
parent 35ca5c0b6b
commit d381249bb8
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
libavcodec/tiff.c
View File

@ -263,6 +263,10 @@ static int tiff_decode_tag(TiffContext *s, const uint8_t *start, const uint8_t *
s->height = value;
break;
case TIFF_BPP:
if(count > 4){
av_log(s->avctx, AV_LOG_ERROR, "This format is not supported (bpp=%d, %d components)\n", s->bpp, count);
return -1;
}
if(count == 1) s->bpp = value;
else{
switch(type){
@ -278,10 +282,6 @@ static int tiff_decode_tag(TiffContext *s, const uint8_t *start, const uint8_t *
s->bpp = -1;
}
}
if(count > 4){
av_log(s->avctx, AV_LOG_ERROR, "This format is not supported (bpp=%d, %d components)\n", s->bpp, count);
return -1;
}
switch(s->bpp*10 + count){
case 11:
s->avctx->pix_fmt = PIX_FMT_MONOBLACK;