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>
Thu, 28 Dec 2017 19:27:46 +0000 (20:27 +0100)
commitb9a8b4f279df661c02c68f4f4c6370cb1244862c
tree0283268a0dfbd75c036d75f1d07100cd808c4169
parentc745358efed4c7c85e829ab754553b2fc45bb5fc
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