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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-15 21:19:06 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-16 02:24:01 +0200 |
| commit | c521f9a5cd8cabaf985eb06f87e9b7f7ad5fcaf2 (patch) | |
| tree | a07e49d4b5e0275457a7d994ac8dfa415674ebd2 | |
| parent | 826515083a289e3e22250c59438b9fe554e71a46 (diff) | |
| download | ffmpeg-c521f9a5cd8cabaf985eb06f87e9b7f7ad5fcaf2.tar.gz | |
avcodec/tiff: reset sampling[] if its invalid
Fixes divission by 0
Fixes: clusterfuzz-testcase-minimized-5592896440893440
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f08122fbe039a56ab3c24f74636b4b0efea97d85)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/tiff.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c index 9239a7c9ff..a0f4bff5cf 100644 --- a/libavcodec/tiff.c +++ b/libavcodec/tiff.c @@ -1019,6 +1019,7 @@ static int tiff_decode_tag(TiffContext *s, AVFrame *frame) s->subsampling[i] = ff_tget(&s->gb, type, s->le); if (s->subsampling[i] <= 0) { av_log(s->avctx, AV_LOG_ERROR, "subsampling %d is invalid\n", s->subsampling[i]); + s->subsampling[i] = 1; return AVERROR_INVALIDDATA; } } |