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authorMichael Niedermayer <michael@niedermayer.cc>2017-05-31 22:53:02 +0200
committerMichael Niedermayer <michael@niedermayer.cc>2017-06-05 23:16:54 +0200
commitd1390a8670dbf2d36eb21e7d7268a13f1720916c (patch)
tree694701949f81e72f75b264597437d32639ddfc97
parent653de8249dab1a6c96bc4d5a049b3b9234c9a4ba (diff)
downloadffmpeg-d1390a8670dbf2d36eb21e7d7268a13f1720916c.tar.gz
avcodec/wavpack: Fix runtime error: signed integer overflow: 2013265955 - -134217694 cannot be represented in type 'int'
Fixes: 1922/clusterfuzz-testcase-minimized-5561194112876544 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 a47273c803edfbc43793349b74429ae29b05c003) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
-rw-r--r--libavcodec/wavpack.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c
index 614d5a3283..25dc4cd519 100644
--- a/libavcodec/wavpack.c
+++ b/libavcodec/wavpack.c
@@ -239,7 +239,7 @@ static int wv_get_value(WavpackFrameContext *ctx, GetBitContext *gb,
if (get_bits_left(gb) <= 0)
goto error;
if (get_bits1(gb)) {
- add -= (mid - base);
+ add -= (mid - (unsigned)base);
base = mid;
} else
add = mid - base - 1;