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avcodec/wavpack: Fix overflow in adding tail

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Fixes: signed integer overflow: 2146907204 + 26846088 cannot be represented in type 'int'
Fixes: 8105/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WAVPACK_fuzzer-6233036682166272

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 d13379fb79)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2018-06-08 00:07:04 +02:00
parent 3f66c3386c
commit 719931c036
1 changed files with 1 additions and 1 deletions
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libavcodec/wavpack.c
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@ -85,7 +85,7 @@ typedef struct WavpackContext {
#define LEVEL_DECAY(a) (((a) + 0x80) >> 8)
static av_always_inline int get_tail(GetBitContext *gb, int k)
static av_always_inline unsigned get_tail(GetBitContext *gb, int k)
{
int p, e, res;