avcodec/h264_slice: Do not attempt to render into frames already output
authorMichael Niedermayer <michael@niedermayer.cc>
Wed, 3 Jan 2018 22:42:01 +0000 (23:42 +0100)
committerMichael Niedermayer <michael@niedermayer.cc>
Mon, 19 Feb 2018 01:40:54 +0000 (02:40 +0100)
commit06325d77bf12dead2126e42cf89a7fd601691a5f
tree3f1e848469d6d8de560b2c15c1efbb65094f7fb4
parent0c753a46efe2ec43bd2f1c5bbdd4c46e83af421e
avcodec/h264_slice: Do not attempt to render into frames already output

Fixes: null pointer dereference
Fixes: 4698/clusterfuzz-testcase-minimized-5096956322906112

This testcase does not reproduce the issue before 03b82b3ab9883cef017e513c7d0b3b986b3b3e7b

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 476665d4de989dba48ec1195215ccc8db54538f4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/h264_slice.c