From: 孙浩(晓黑) <tony...@alibaba-inc.com>
Fixes: 20170829B.mxf
Co-Author: 张洪亮(望初)" <wangchu....@alibaba-inc.com>
Found-by: Xiaohei and Wangchu from Alibaba Security Team
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
libavformat/mxfdec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
index 6adb77d81f..91731a7533 100644
--- a/libavformat/mxfdec.c
+++ b/libavformat/mxfdec.c
@@ -500,7 +500,7 @@ static int mxf_read_primer_pack(void *arg, AVIOContext *pb,
int tag, int size, U
avpriv_request_sample(pb, "Primer pack item length %d", item_len);
return AVERROR_PATCHWELCOME;
}
- if (item_num > 65536) {
+ if (item_num > 65536 || item_num < 0) {
av_log(mxf->fc, AV_LOG_ERROR, "item_num %d is too large\n", item_num);
return AVERROR_INVALIDDATA;
}
--
2.14.1
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