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avcodec/movtextdec: run mov_text_cleanup() before overwriting pointers

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Fixes: memleak
Fixes: 741/clusterfuzz-testcase-586996200452915

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2017-03-08 22:54:10 +01:00
parent e2a4f1a9eb
commit bac9c03ed9
1 changed files with 2 additions and 0 deletions
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2
libavcodec/movtextdec.c
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@@ -459,6 +459,8 @@ static int mov_text_decode_frame(AVCodecContext *avctx,
end = ptr + FFMIN(2 + text_length, avpkt->size); end = ptr + FFMIN(2 + text_length, avpkt->size);
ptr += 2; ptr += 2;
mov_text_cleanup(m);
tsmb_size = 0; tsmb_size = 0;
m->tracksize = 2 + text_length; m->tracksize = 2 + text_length;
m->style_entries = 0; m->style_entries = 0;