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authorMichael Niedermayer <michael@niedermayer.cc>2019-06-13 19:45:50 +0200
committerMichael Niedermayer <michael@niedermayer.cc>2019-06-27 17:50:47 +0200
commitef73b0da2df22f5f589692961d17d2294cd2a457 (patch)
treef10a1239cd9a3ffa7a564d525942e3d787d09e2b
parent8ba9b195e7780f86260d3eb2023504dac10e7277 (diff)
downloadffmpeg-ef73b0da2df22f5f589692961d17d2294cd2a457.tar.gz
avcodec/truemotion2: Fix integer overflow in last loop in tm2_update_block()
Fixes: signed integer overflow: -1727985666 - 538976288 cannot be represented in type 'int' Fixes: 15031/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEMOTION2_fuzzer-5100228035739648 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit 3aecd0170413c7e56f19de4e34d093a2c4027c2a) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
-rw-r--r--libavcodec/truemotion2.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/truemotion2.c b/libavcodec/truemotion2.c
index 8936741c6c..e1e9f63397 100644
--- a/libavcodec/truemotion2.c
+++ b/libavcodec/truemotion2.c
@@ -672,7 +672,7 @@ static inline void tm2_still_block(TM2Context *ctx, AVFrame *pic, int bx, int by
static inline void tm2_update_block(TM2Context *ctx, AVFrame *pic, int bx, int by)
{
int i, j;
- int d;
+ unsigned d;
TM2_INIT_POINTERS_2();
/* update chroma */