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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-06-09 22:11:23 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-07-05 12:43:08 +0200 |
| commit | 08f49d5085f123f1c6f15c77252a24d5e7eaa797 (patch) | |
| tree | 48453cc40b30d72d925dfcdbbe60f10e5b662aeb | |
| parent | 5663dd666233ffc8b2b28a992433694196f2d46d (diff) | |
| download | ffmpeg-08f49d5085f123f1c6f15c77252a24d5e7eaa797.tar.gz | |
avcodec/wmalosslessdec: Check block_align maximum
Fixes: Assertion failure
Fixes: 22737/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMALOSSLESS_fuzzer-5958388889681920
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 314d10f7a60f1786c85da30a569be61e2b906fef)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/wmalosslessdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/wmalosslessdec.c b/libavcodec/wmalosslessdec.c index 87a672845e..02e1e8dfa1 100644 --- a/libavcodec/wmalosslessdec.c +++ b/libavcodec/wmalosslessdec.c @@ -185,7 +185,7 @@ static av_cold int decode_init(AVCodecContext *avctx) unsigned int channel_mask; int i, log2_max_num_subframes; - if (avctx->block_align <= 0) { + if (avctx->block_align <= 0 || avctx->block_align > (1<<21)) { av_log(avctx, AV_LOG_ERROR, "block_align is not set or invalid\n"); return AVERROR(EINVAL); } |