From 0f1e398874399ddf0586b54735d8c85ff1228c85 Mon Sep 17 00:00:00 2001
From: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Date: Fri, 18 Dec 2015 15:18:47 +0100
Subject: [PATCH] nutdec: only copy the header if it exists
Fixes ubsan runtime error: null pointer passed as argument 2, which is
declared to never be null
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
(cherry picked from commit 9f82506c79874edd7b09707ab63d9e72078de8f9)
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
---
libavformat/nutdec.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libavformat/nutdec.c b/libavformat/nutdec.c
index cd1da9f13e..a28c632977 100644
--- a/libavformat/nutdec.c
+++ b/libavformat/nutdec.c
@@ -1069,7 +1069,8 @@ static int decode_frame(NUTContext *nut, AVPacket *pkt, int frame_code)
ret = av_new_packet(pkt, size + nut->header_len[header_idx]);
if (ret < 0)
return ret;
- memcpy(pkt->data, nut->header[header_idx], nut->header_len[header_idx]);
+ if (nut->header[header_idx])
+ memcpy(pkt->data, nut->header[header_idx], nut->header_len[header_idx]);
pkt->pos = avio_tell(bc); // FIXME
if (stc->last_flags & FLAG_SM_DATA) {
int sm_size;