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dvdsubdec: validate offset2 similar to offset1

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If it is negative, it causes segmentation faults in decode_rle.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
(cherry picked from commit f621749d11)
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
This commit is contained in:
Andreas Cadhalpun
2015-11-10 22:14:39 +01:00
parent d09fd0736a
commit df31acda64
1 changed files with 1 additions and 1 deletions
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libavcodec/dvdsubdec.c
+1 -1
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@@ -346,7 +346,7 @@ static int decode_dvd_subtitles(DVDSubContext *ctx, AVSubtitle *sub_header,
}
}
the_end:
if (offset1 >= 0) {
if (offset1 >= 0 && offset2 >= 0) {
int w, h;
uint8_t *bitmap;