avcodec/truemotion2: Fix integer overflow in TM2_RECALC_BLOCK()
authorMichael Niedermayer <michael@niedermayer.cc>
Sat, 20 Jan 2018 03:10:50 +0000 (04:10 +0100)
committerMichael Niedermayer <michael@niedermayer.cc>
Wed, 31 Jan 2018 22:47:15 +0000 (23:47 +0100)
commit25f7121c7b98b3d188e4896d5bdd83ac7da903fe
tree84196022a0a09474a6b47c017e68684cc8f2ce47
parentb9948d52756a883afb1e7cebf9740f1094e1f3f3
avcodec/truemotion2: Fix integer overflow in TM2_RECALC_BLOCK()

Fixes: signed integer overflow: 1477974040 - -1877995504 cannot be represented in type 'int'
Fixes: 4861/clusterfuzz-testcase-minimized-4570316383715328

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 56a53340ed4cc55898e49c07081311ebb2816630)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/truemotion2.c