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| author | 孙浩(晓黑) <tony.sh@alibaba-inc.com> | 2017-08-29 23:59:21 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-09-01 03:20:53 +0200 |
| commit | b2aa633d663d4ed962ed92fcf5657df50521a8d9 (patch) | |
| tree | d90882c25ad02658476c076d329eb1393d8c32a7 | |
| parent | 74c067e95572dd4bfb069123f44d68b8a12e1991 (diff) | |
| download | ffmpeg-b2aa633d663d4ed962ed92fcf5657df50521a8d9.tar.gz | |
avformat/mxfdec: Fix Sign error in mxf_read_primer_pack()
Fixes: 20170829B.mxf
Co-Author: 张洪亮(望初)" <wangchu.zhl@alibaba-inc.com>
Found-by: Xiaohei and Wangchu from Alibaba Security Team
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9d00fb9d70ee8c0cc7002b89318c5be00f1bbdad)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/mxfdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c index ae518f9a88..bb0513aaa2 100644 --- a/libavformat/mxfdec.c +++ b/libavformat/mxfdec.c @@ -491,7 +491,7 @@ 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; } |