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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-06-07 21:35:43 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-07-05 01:47:56 +0200 |
| commit | a09705cf481a27c2b9508bf24fa2395a568d86a5 (patch) | |
| tree | b2ba30a8c2a72fa516c44499f9902b1106240d15 | |
| parent | a497d3de314dd9d17078f9dc2e9f29fb062844f6 (diff) | |
| download | ffmpeg-a09705cf481a27c2b9508bf24fa2395a568d86a5.tar.gz | |
avformat/4xm: Cleanup on GET_LIST_HEADER() failure
Fixes: memleak
Fixes: 23142/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5932860820422656
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a5313ce6542a4ee4112acd260e59bff698f3dddd)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/4xm.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/libavformat/4xm.c b/libavformat/4xm.c index a984fc9fdf..b6c5ecbb48 100644 --- a/libavformat/4xm.c +++ b/libavformat/4xm.c @@ -59,8 +59,10 @@ #define GET_LIST_HEADER() \ fourcc_tag = avio_rl32(pb); \ size = avio_rl32(pb); \ - if (fourcc_tag != LIST_TAG) \ - return AVERROR_INVALIDDATA; \ + if (fourcc_tag != LIST_TAG) { \ + ret = AVERROR_INVALIDDATA; \ + goto fail; \ + } \ fourcc_tag = avio_rl32(pb); typedef struct AudioTrack { @@ -210,7 +212,7 @@ static int fourxm_read_header(AVFormatContext *s) unsigned int size; int header_size; FourxmDemuxContext *fourxm = s->priv_data; - unsigned char *header; + unsigned char *header = NULL; int i, ret; fourxm->track_count = 0; |