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 12:23:24 +0000 (14:23 +0200)
commit934878f2a62f6744e44b1ef8085ffdfa6d4a5007
treeebd9410061db2e6a724710f3976368321b600041
parent38d9a782a585f82e8ee543d8e806a6a282322e5c
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