diff options
| author | Michael Niedermayer <[email protected]> | 2020-08-02 00:51:12 +0200 |
|---|---|---|
| committer | Michael Niedermayer <[email protected]> | 2021-02-02 14:18:20 +0100 |
| commit | f7b28fc9cec50252d903b5eb4691733b6bc3d503 (patch) | |
| tree | e0295da20131fdfed9b667a6e56d7f4c08cd1293 | |
| parent | c017516140aa06bcacd4351eab13b022d8e5f49a (diff) | |
avformat/mov: Check comp_brand_size
Fixes: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'
Fixes: 24457/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5760093644390400
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <[email protected]>
(cherry picked from commit ffa6072fc727a14680a85449259f6b49b47587e6)
Signed-off-by: Michael Niedermayer <[email protected]>
| -rw-r--r-- | libavformat/mov.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/mov.c b/libavformat/mov.c index dfb41b93bf..4550abd25c 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -1119,7 +1119,7 @@ static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom) av_dict_set_int(&c->fc->metadata, "minor_version", minor_ver, 0); comp_brand_size = atom.size - 8; - if (comp_brand_size < 0) + if (comp_brand_size < 0 || comp_brand_size == INT_MAX) return AVERROR_INVALIDDATA; comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */ if (!comp_brands_str) |