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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-06-19 23:17:31 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-07-06 22:50:21 +0200 |
| commit | 51f6870c37cc29e1ea7e0c66df2fe505938b7561 (patch) | |
| tree | fc9bd2703d6f748ac2195f8894347498cf7e868e /libavcodec | |
| parent | e131568752ad41222946304c61eadb87b0a24791 (diff) | |
| download | ffmpeg-51f6870c37cc29e1ea7e0c66df2fe505938b7561.tar.gz | |
avcodec/alsdec: Fix undefined behavior in decode_rice()
Fixes: left shift of 72 by 26 places cannot be represented in type 'int'
Fixes: 15279/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALS_fuzzer-5700665621348352
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/alsdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/alsdec.c b/libavcodec/alsdec.c index 2660747472..e54440910c 100644 --- a/libavcodec/alsdec.c +++ b/libavcodec/alsdec.c @@ -487,7 +487,7 @@ static void parse_bs_info(const uint32_t bs_info, unsigned int n, static int32_t decode_rice(GetBitContext *gb, unsigned int k) { int max = get_bits_left(gb) - k; - int q = get_unary(gb, 0, max); + unsigned q = get_unary(gb, 0, max); int r = k ? get_bits1(gb) : !(q & 1); if (k > 1) { |