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qdm2: check array index before use, fix out of array accesses

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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-11-30 23:59:40 +01:00
parent 991e23519a
commit a7ee6281f7
1 changed files with 5 additions and 0 deletions
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5
libavcodec/qdm2.c
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@ -1257,6 +1257,11 @@ static void qdm2_decode_super_block (QDM2Context *q)
for (i = 0; packet_bytes > 0; i++) {
int j;
if (i>=FF_ARRAY_ELEMS(q->sub_packet_list_A)) {
SAMPLES_NEEDED_2("too many packet bytes");
return;
}
q->sub_packet_list_A[i].next = NULL;
if (i > 0) {