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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-10-24 01:44:12 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-11-03 00:50:15 +0100 |
| commit | b8aa7b9a6d8618cf8997f20602be11a2c31c83d6 (patch) | |
| tree | 4244d9b30bd3a97caf20f1b02de0ae471dfeb507 | |
| parent | d2ce6472a77abd1653306ec5645a09b4c62add1b (diff) | |
| download | ffmpeg-b8aa7b9a6d8618cf8997f20602be11a2c31c83d6.tar.gz | |
avutil/integer: Fix integer overflow in av_mul_i()
Found-by: fate
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 3cc3cb663bf3061e40356392d2f7638de6a479fe)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavutil/integer.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavutil/integer.c b/libavutil/integer.c index 890e314dce..78e252fbde 100644 --- a/libavutil/integer.c +++ b/libavutil/integer.c @@ -74,7 +74,7 @@ AVInteger av_mul_i(AVInteger a, AVInteger b){ if(a.v[i]) for(j=i; j<AV_INTEGER_SIZE && j-i<=nb; j++){ - carry= (carry>>16) + out.v[j] + a.v[i]*b.v[j-i]; + carry= (carry>>16) + out.v[j] + a.v[i]*(unsigned)b.v[j-i]; out.v[j]= carry; } } |