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authorMichael Niedermayer <michael@niedermayer.cc>2018-10-24 01:44:12 +0200
committerMichael Niedermayer <michael@niedermayer.cc>2018-10-25 00:24:54 +0200
commit15296d64ca4f691285f245b1e5af04241e5b2fd2 (patch)
tree1db0e38572f8762eb29636915d4b7eb452f67152
parent82e796a4c9ccaf2765c0a1e85dbcec73733f4246 (diff)
downloadffmpeg-15296d64ca4f691285f245b1e5af04241e5b2fd2.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.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavutil/integer.c b/libavutil/integer.c
index 6d6855fa1b..ba4aa778c9 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;
}
}