avcodec/diracdec: Fix integer overflow in divide3()
authorMichael Niedermayer <michael@niedermayer.cc>
Thu, 27 Jul 2017 21:49:27 +0000 (23:49 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Sat, 29 Jul 2017 12:23:26 +0000 (14:23 +0200)
commit95bbbbd14e44ef4c1a1589d1c1dc39245dc72a39
treee71a61e76a6f6fec81178eab688f23cafbfc3519
parent406d9fdd135789fc97a40e1f316a6f9d7079a452
avcodec/diracdec: Fix integer overflow in divide3()

Fixes: runtime error: signed integer overflow: -1073746548 * 21845 cannot be represented in type 'int'
Fixes: 2729/clusterfuzz-testcase-minimized-5902915464069120

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 c0220c768c7fc933a76c863ebbb0abdf68a88533)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/diracdec.c