avcodec/diracdec: Check perspective_exp and zrs_exp.
authorMichael Niedermayer <michael@niedermayer.cc>
Tue, 15 Aug 2017 01:32:43 +0000 (03:32 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Sun, 17 Sep 2017 13:57:27 +0000 (15:57 +0200)
commitdf2efc212dabc2cccb7101e15bba0c78cb5d80b3
treeb8e32e6c4fdbe97a9866858c4fe0deae5f0bb1df
parenta5c83b586b8097948a9cbba8937f89245cad4274
avcodec/diracdec: Check perspective_exp and zrs_exp.

Fixes: undefined shift
Fixes: runtime error: shift exponent 264 is too large for 32-bit type 'int'
Fixes: 2860/clusterfuzz-testcase-minimized-4672811689836544

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 1e6cab874512070b36267a5a53fd053f90072fa2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/diracdec.c