avcodec/dirac_vlc: Fix invalid shift in ff_dirac_golomb_read_32bit()
authorMichael Niedermayer <michael@niedermayer.cc>
Fri, 1 Sep 2017 17:56:12 +0000 (19:56 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Sat, 9 Sep 2017 23:33:28 +0000 (01:33 +0200)
commit8a640fc7cb5e7110c679102007f795846e2a64e6
tree3f986cf6baa994ac2d81f3487ca1d49e6383c9d0
parentfef0ccc40132b6a583ec6838e5823baf5649a83d
avcodec/dirac_vlc: Fix invalid shift in ff_dirac_golomb_read_32bit()

Fixes: runtime error: shift exponent 64 is too large for 64-bit type 'residual' (aka 'unsigned long')
Fixes: 2838/clusterfuzz-testcase-minimized-6260066086813696

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 c595139f1fdb5ce5ee128c317ed9e4e836282436)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/dirac_vlc.c