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| author | Michael Niedermayer <michael@niedermayer.cc> | 2016-09-12 13:13:42 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2016-09-12 23:53:07 +0200 |
| commit | 5e1bf9d8c0d2cdbbf17b06a5dfdf87a635b3203b (patch) | |
| tree | c2de411b5aae383a155ea8f3cbaffc10543769d6 | |
| parent | dca03ec5f4d5ca28efc8a80c591412fab5821d81 (diff) | |
| download | ffmpeg-5e1bf9d8c0d2cdbbf17b06a5dfdf87a635b3203b.tar.gz | |
avcodec/avpacket: clear side_data_elems
Fixes null pointer dereference
Found-by: 连一汉 <lianyihan@360.cn>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/avpacket.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/libavcodec/avpacket.c b/libavcodec/avpacket.c index fa2844d2cf..a485064eee 100644 --- a/libavcodec/avpacket.c +++ b/libavcodec/avpacket.c @@ -198,6 +198,7 @@ static int copy_packet_data(AVPacket *pkt, const AVPacket *src, int dup) { pkt->data = NULL; pkt->side_data = NULL; + pkt->side_data_elems = 0; if (pkt->buf) { AVBufferRef *ref = av_buffer_ref(src->buf); if (!ref) @@ -207,9 +208,11 @@ static int copy_packet_data(AVPacket *pkt, const AVPacket *src, int dup) } else { DUP_DATA(pkt->data, src->data, pkt->size, 1, ALLOC_BUF); } - if (pkt->side_data_elems && dup) + if (src->side_data_elems && dup) { pkt->side_data = src->side_data; - if (pkt->side_data_elems && !dup) { + pkt->side_data_elems = src->side_data_elems; + } + if (src->side_data_elems && !dup) { return av_copy_packet_side_data(pkt, src); } return 0; |