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| author | Michael Niedermayer <michaelni@gmx.at> | 2014-10-04 04:29:40 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-11-02 02:20:09 +0100 |
| commit | 128b0510e1596058fd65c23c274c9cf1b88956fb (patch) | |
| tree | 9285b2836b8bc3df49b83360ab3bc572be2ac865 | |
| parent | ff59edb6dcd7e695b28335c5f718fb7342823714 (diff) | |
| download | ffmpeg-128b0510e1596058fd65c23c274c9cf1b88956fb.tar.gz | |
avformat/mpegts: Check desc_len / get8() return code
Fixes out of array read
Fixes: signal_sigsegv_844d59_10_signal_sigsegv_a17bb7_366_mpegts_mpeg2video_mp2_dvbsub_topfield.rec
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c3d7f00ee3e09801f56f25db8b5961f25e842bd2)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavformat/mpegts.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c index f49c2c4049..2bb3fdca87 100644 --- a/libavformat/mpegts.c +++ b/libavformat/mpegts.c @@ -1698,7 +1698,7 @@ static void sdt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len break; desc_len = get8(&p, desc_list_end); desc_end = p + desc_len; - if (desc_end > desc_list_end) + if (desc_len < 0 || desc_end > desc_list_end) break; av_dlog(ts->stream, "tag: 0x%02x len=%d\n", |