virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-10-30 23:18:11 +02:00
Code Issues Releases Activity

avcodec/jpeg2000dec: Port tile size check from j2kdec

Browse Source 
Fixes potential integer overflow

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2013-05-22 03:12:44 +02:00
parent 73ffab4195
commit 53f0442464
1 changed files with 3 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
libavcodec/jpeg2000dec.c
View File

@@ -192,6 +192,9 @@ static int get_siz(Jpeg2000DecoderContext *s)
s->numXtiles = ff_jpeg2000_ceildiv(s->width - s->tile_offset_x, s->tile_width);
s->numYtiles = ff_jpeg2000_ceildiv(s->height - s->tile_offset_y, s->tile_height);
if(s->numXtiles * (uint64_t)s->numYtiles > INT_MAX/sizeof(Jpeg2000Tile))
return AVERROR(EINVAL);
s->tile = av_mallocz(s->numXtiles * s->numYtiles * sizeof(*s->tile));
if (!s->tile)
return AVERROR(ENOMEM);