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>
Mon, 22 Oct 2018 23:44:40 +0000 (01:44 +0200)
commitc0bb5613d42f8ed6d661886b5084031387ce0882
tree6af68947d3882fe7c02ad01c0a0e06ac17a96f84
parent72b9ba8a5bfee62ed281e3d23de34cdd70da7955
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