RepoMirrors
/
ffmpeg
mirror of https://git.ffmpeg.org/ffmpeg.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Fixed segfault on corrupted smacker streams in the demuxer. 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Laurent Aimar 2011-09-11 18:51:52 +02:00 committed by Michael Niedermayer
parent d07ac1853d
commit d0121e8d96
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
libavformat/smacker.c
View File

@ -291,6 +291,10 @@ static int smacker_read_packet(AVFormatContext *s, AVPacket *pkt)
frame_size -= 4;
smk->curstream++;
smk->bufs[smk->curstream] = av_realloc(smk->bufs[smk->curstream], size);
if (!smk->bufs[smk->curstream]) {
smk->buf_sizes[smk->curstream] = 0;
return AVERROR(ENOMEM);
}
smk->buf_sizes[smk->curstream] = size;
ret = avio_read(s->pb, smk->bufs[smk->curstream], size);
if(ret != size)
@ -299,7 +303,9 @@ static int smacker_read_packet(AVFormatContext *s, AVPacket *pkt)
}
flags >>= 1;
}
if (av_new_packet(pkt, frame_size + 768))
if (frame_size < 0)
return AVERROR_INVALIDDATA;
if (av_new_packet(pkt, frame_size + 769))
return AVERROR(ENOMEM);
if(smk->frm_size[smk->cur_frame] & 1)
palchange |= 2;