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nsvdec: Propagate errors 

Related to CVE-2011-3940.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
This commit is contained in:
Alex Converse 2012-01-26 17:23:09 -08:00
parent 8fd8a48263
commit c898431ca5
1 changed files with 6 additions and 1 deletions
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7
libavformat/nsvdec.c
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@ -532,11 +532,16 @@ static int nsv_read_header(AVFormatContext *s)
for (i = 0; i < NSV_MAX_RESYNC_TRIES; i++) {
if (nsv_resync(s) < 0)
return -1;
if (nsv->state == NSV_FOUND_NSVF)
if (nsv->state == NSV_FOUND_NSVF) {
err = nsv_parse_NSVf_header(s);
if (err < 0)
return err;
}
/* we need the first NSVs also... */
if (nsv->state == NSV_FOUND_NSVS) {
err = nsv_parse_NSVs_header(s);
if (err < 0)
return err;
break; /* we just want the first one */
}
}