RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-12-24 00:02:52 +00:00
Code Issues Projects Releases Wiki Activity

smacker: check frame size validity

Browse Source 
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Kostya Shishkov 2013-06-12 14:30:51 +02:00 committed by Luca Barbato
parent 58c95448e4
commit ee16a0ced0
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
libavformat/smacker.c
View File

@ -304,10 +304,14 @@ static int smacker_read_packet(AVFormatContext *s, AVPacket *pkt)
/* if audio chunks are present, put them to stack and retrieve later */ /* if audio chunks are present, put them to stack and retrieve later */
for(i = 0; i < 7; i++) { for(i = 0; i < 7; i++) {
if(flags & 1) { if(flags & 1) {
int size; uint32_t size;
uint8_t *tmpbuf; uint8_t *tmpbuf;
size = avio_rl32(s->pb) - 4; size = avio_rl32(s->pb) - 4;
if (!size || size > frame_size) {
av_log(s, AV_LOG_ERROR, "Invalid audio part size\n");
return AVERROR_INVALIDDATA;
}
frame_size -= size; frame_size -= size;
frame_size -= 4; frame_size -= 4;
smk->curstream++; smk->curstream++;