eessppeelllloo/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2026-06-16 04:32:47 +02:00
Code Issues Packages Projects Releases Wiki Activity

avformat/mov: Ignore multiple STSC / STCO

Browse Source 
Fixes: STSC / STCO inconsistency and assertion failure
Fixes: crbug1184666.mp4

Found-by: Chromium ASAN fuzzer
Reviewed-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 2611d20d35)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2021-03-24 17:03:08 +01:00
parent c0c53ad2de
commit 7aceba2349
1 changed files with 8 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
libavformat/mov.c
+8 -4
View File
@@ -2011,8 +2011,10 @@ static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if (!entries)
return 0;
if (sc->chunk_offsets)
av_log(c->fc, AV_LOG_WARNING, "Duplicated STCO atom\n");
if (sc->chunk_offsets) {
av_log(c->fc, AV_LOG_WARNING, "Ignoring duplicated STCO atom\n");
return 0;
}
av_free(sc->chunk_offsets);
sc->chunk_count = 0;
sc->chunk_offsets = av_malloc_array(entries, sizeof(*sc->chunk_offsets));
@@ -2655,8 +2657,10 @@ static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if (!entries)
return 0;
if (sc->stsc_data)
av_log(c->fc, AV_LOG_WARNING, "Duplicated STSC atom\n");
if (sc->stsc_data) {
av_log(c->fc, AV_LOG_WARNING, "Ignoring duplicated STSC atom\n");
return 0;
}
av_free(sc->stsc_data);
sc->stsc_count = 0;
sc->stsc_data = av_malloc_array(entries, sizeof(*sc->stsc_data));