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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-10-19 19:18:18 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-10-20 19:24:53 +0200 |
| commit | c1c799271eefb8afe22804a710baa5cbaad57d91 (patch) | |
| tree | fdb24046afe5e10b4cdbfc2ef654315876757067 /libavcodec/wmalosslessdec.c | |
| parent | 673fce6d40d9a594fb7a0ea17d296b7d3d9ea856 (diff) | |
| download | ffmpeg-c1c799271eefb8afe22804a710baa5cbaad57d91.tar.gz | |
avcodec/wmalosslessdec: Check block_align
Fixes: NULL pointer dereference
Fixes: 18331/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMALOSSLESS_fuzzer-5652847445671936
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/wmalosslessdec.c')
| -rw-r--r-- | libavcodec/wmalosslessdec.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/wmalosslessdec.c b/libavcodec/wmalosslessdec.c index eb1db615ae..19bac949d4 100644 --- a/libavcodec/wmalosslessdec.c +++ b/libavcodec/wmalosslessdec.c @@ -184,8 +184,8 @@ static av_cold int decode_init(AVCodecContext *avctx) unsigned int channel_mask; int i, log2_max_num_subframes; - if (!avctx->block_align) { - av_log(avctx, AV_LOG_ERROR, "block_align is not set\n"); + if (avctx->block_align <= 0) { + av_log(avctx, AV_LOG_ERROR, "block_align is not set or invalid\n"); return AVERROR(EINVAL); } |