On 01/26/2012 07:21 PM, Alex Converse wrote: > From: Michael Niedermayer <[email protected]> > > dv: Fix null pointer dereference due to ach=0 > > Fixes part2 of CVE-2011-3929 > > Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind > Reviewed-by: Roman Shaposhnik <[email protected]> > Signed-off-by: Michael Niedermayer <[email protected]> > Signed-off-by: Alex Converse <[email protected]> > --- > libavformat/dv.c | 3 ++- > 1 files changed, 2 insertions(+), 1 deletions(-) > > diff --git a/libavformat/dv.c b/libavformat/dv.c > index 4896b0a..bde8ca3 100644 > --- a/libavformat/dv.c > +++ b/libavformat/dv.c > @@ -343,7 +343,8 @@ int avpriv_dv_produce_packet(DVDemuxContext *c, AVPacket > *pkt, > c->audio_pkt[i].pts = c->abytes * 30000*8 / > c->ast[i]->codec->bit_rate; > ppcm[i] = c->audio_buf[i]; > } > - dv_extract_audio(buf, ppcm, c->sys); > + if (c->ach) > + dv_extract_audio(buf, ppcm, c->sys); > > /* We work with 720p frames split in half, thus even frames have > * channels 0,1 and odd 2,3. */
ltgm. -Justin _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
