ffmpeg/FFmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-10-19 04:53:25 +00:00
Code Issues Packages Projects Releases Wiki Activity

avformat/mov: check extent_offset calculation for overflow

Browse Source 
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2024-06-30 23:40:20 -03:00
parent c49898a6b1
commit a9a5d000aa
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
libavformat/mov.c
View File

@ -8456,7 +8456,8 @@ static int mov_read_iloc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
}
for (int j = 0; j < extent_count; j++) {
if (rb_size(pb, &extent_offset, offset_size) < 0 ||
rb_size(pb, &extent_length, length_size) < 0)
rb_size(pb, &extent_length, length_size) < 0 ||
base_offset > INT64_MAX - extent_offset)
return AVERROR_INVALIDDATA;
if (offset_type == 1)
c->heif_item[i].is_idat_relative = 1;