avcodec/jpeg2000dwt: Fix integer overflow in dwt_decode97_int()
authorMichael Niedermayer <michael@niedermayer.cc>
Mon, 18 Feb 2019 23:05:51 +0000 (00:05 +0100)
committerMichael Niedermayer <michael@niedermayer.cc>
Wed, 13 Mar 2019 23:24:44 +0000 (00:24 +0100)
commit662b6351c80a7768a5b46943a067b7c633e29088
tree696eeebff4a4048501401a397aed18f03b5eb863
parentb8dd1d2d4bde740f61ba10eea399109c5e772da9
avcodec/jpeg2000dwt: Fix integer overflow in dwt_decode97_int()

Fixes: runtime error: signed integer overflow: 2147483598 + 128 cannot be represented in type 'int'
Fixes: 12926/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEG2000_fuzzer-5705100733972480

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 4801eea0d465cd54670e7c19322705544e3e7524)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/jpeg2000dwt.c