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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-06-01 19:06:07 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-12-02 19:41:48 +0100 |
| commit | ea3df2f7becf217352f0ef8d3fcf0982734a28c3 (patch) | |
| tree | 7143e1a36863749887d99e4b15a272098831c6a7 | |
| parent | 386368fd918abdc2bfa6b09a82e1b6942bd7e01b (diff) | |
| download | ffmpeg-ea3df2f7becf217352f0ef8d3fcf0982734a28c3.tar.gz | |
avcodec/mjpegdec: Check for non ls PAL8
Fixes: Null-dereference READ in av_malloc
Fixes: 15002/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_THP_fuzzer-5643474625363968
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 442375fee7f1fb15e42fbc128dc38bdfcc2cc105)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/mjpegdec.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c index 2674957908..953eb662d4 100644 --- a/libavcodec/mjpegdec.c +++ b/libavcodec/mjpegdec.c @@ -639,7 +639,9 @@ unk_pixfmt: } if ((s->rgb && !s->lossless && !s->ls) || - (!s->rgb && s->ls && s->nb_components > 1)) { + (!s->rgb && s->ls && s->nb_components > 1) || + (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 && !s->ls) + ) { av_log(s->avctx, AV_LOG_ERROR, "Unsupported coding and pixel format combination\n"); return AVERROR_PATCHWELCOME; } |