avcodec/flacdec: Fix overflow in multiplication in decode_subframe_fixed()
authorMichael Niedermayer <michael@niedermayer.cc>
Tue, 26 Dec 2017 22:24:44 +0000 (23:24 +0100)
committerMichael Niedermayer <michael@niedermayer.cc>
Wed, 31 Jan 2018 21:56:15 +0000 (22:56 +0100)
commit2a53778676d068456bf245126d15eeb6f537da9a
tree0ea46d450d4b6df867ab6540ed58dbc107ca713e
parentaae8ea9c186eaf4e6062d163ad5ee0717ce40837
avcodec/flacdec: Fix overflow in multiplication in decode_subframe_fixed()

Fixes: signed integer overflow: 2 * 1629495328 cannot be represented in type 'int'
Fixes: 4716/clusterfuzz-testcase-minimized-5835915940331520

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 3d23f7a0969bf76ad6dcdc2c4a5cd3ae884745a8)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/flacdec.c