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avfilter/vf_signature: use av_strlcpy()

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Fixes: out of array access

Found-by: Kira <kira_cxy@foxmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2018-03-30 02:16:31 +02:00
parent 47b7c68ae5
commit 35eeff30ca
1 changed files with 2 additions and 1 deletions
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3
libavfilter/vf_signature.c
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@@ -576,7 +576,8 @@ static int export(AVFilterContext *ctx, StreamContext *sc, int input)
/* error already handled */
av_assert0(av_get_frame_filename(filename, sizeof(filename), sic->filename, input) == 0);
} else {
strcpy(filename, sic->filename);
if (av_strlcpy(filename, sic->filename, sizeof(filename)) >= sizeof(filename))
return AVERROR(EINVAL);
}
if (sic->format == FORMAT_XML) {
return xml_export(ctx, sc, filename);