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Code Issues Releases Activity

avcodec/jpeg2000dec: fix near null pointer dereference

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Fixes Ticket2840

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2013-08-18 18:44:12 +02:00
parent c666c59ac1
commit 63c0e9077e
1 changed files with 7 additions and 5 deletions
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12
libavcodec/jpeg2000dec.c
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@@ -1343,13 +1343,15 @@ static void jpeg2000_dec_cleanup(Jpeg2000DecoderContext *s)
{
int tileno, compno;
for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++) {
for (compno = 0; compno < s->ncomponents; compno++) {
Jpeg2000Component *comp = s->tile[tileno].comp + compno;
Jpeg2000CodingStyle *codsty = s->tile[tileno].codsty + compno;
if (s->tile[tileno].comp) {
for (compno = 0; compno < s->ncomponents; compno++) {
Jpeg2000Component *comp = s->tile[tileno].comp + compno;
Jpeg2000CodingStyle *codsty = s->tile[tileno].codsty + compno;
ff_jpeg2000_cleanup(comp, codsty);
ff_jpeg2000_cleanup(comp, codsty);
}
av_freep(&s->tile[tileno].comp);
}
av_freep(&s->tile[tileno].comp);
}
av_freep(&s->tile);
s->numXtiles = s->numYtiles = 0;