avcodec/movtextdec: Check style_start/end
authorMichael Niedermayer <michael@niedermayer.cc>
Sun, 8 Apr 2018 01:29:44 +0000 (03:29 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Thu, 12 Apr 2018 22:35:15 +0000 (00:35 +0200)
commitc9452899db109d0fe2238d9162a8fd1b315b78c4
tree21381437a7351f3cb0ec63427b3d3cb12d469944
parent0e5946d5b247d0f9d59096629ccae3bf01b9d40d
avcodec/movtextdec: Check style_start/end

Limits based on 3GPP TS 26.245 V14.0.0
Fixes: Timeout
Fixes: 6377/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MOVTEXT_fuzzer-5175929115508736

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Philip Langdale <philipl@overt.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 249aca8f98ff7fb09c12ea68e23c862c62203b95)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/movtextdec.c