[FFmpeg-cvslog] avcodec/wavpack: Fix overflow in adding tail
Michael Niedermayer
git at videolan.org
Mon Jun 11 01:56:10 EEST 2018
ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Fri Jun 8 00:07:04 2018 +0200| [d13379fb79708f550460dd6d698023bf26f968d5] | committer: Michael Niedermayer
avcodec/wavpack: Fix overflow in adding tail
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 at niedermayer.cc>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d13379fb79708f550460dd6d698023bf26f968d5
---
libavcodec/wavpack.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c
index 22a2c83a30..8306ec020f 100644
--- a/libavcodec/wavpack.c
+++ b/libavcodec/wavpack.c
@@ -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;
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