avcodec/diracdec: Fix integer overflow in mv computation
authorMichael Niedermayer <michael@niedermayer.cc>
Sun, 18 Feb 2018 20:51:38 +0000 (21:51 +0100)
committerMichael Niedermayer <michael@niedermayer.cc>
Tue, 27 Feb 2018 18:59:58 +0000 (19:59 +0100)
commit6822bd50c1eaa385b202ba692d954e1fb2a97fc3
treea640ef88e4b18115de64ff2e5153be0b7aa11085
parent6648d3fef6b07f3ec0b60ec4b5ec08aa5e1964ca
avcodec/diracdec: Fix integer overflow in mv computation

Fixes: signed integer overflow: -2072 + -2147483646 cannot be represented in type 'int'
Fixes: 6097/clusterfuzz-testcase-minimized-5034145253163008

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 47e65ad63b3d067445c4de41a7718b83fc07767c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/diracdec.c