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Subject[PATCH] ipv6:ipv6_pinfo dereferenced after NULL check
Date
From: Rohit Thapliyal <r.thapliyal@samsung.com>

np checked for NULL and then dereferenced. It should be modified
for NULL case.

Signed-off-by: Rohit Thapliyal <r.thapliyal@samsung.com>
Signed-off-by: Manjeet Pawar <manjeet.p@samsung.com>
---
net/ipv6/ip6_output.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 1dfc402..c2afa14 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -205,14 +205,15 @@ int ip6_xmit(const struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6,
/*
* Fill in the IPv6 header
*/
- if (np)
+ if (np) {
hlimit = np->hop_limit;
+ ip6_flow_hdr(
+ hdr, tclass, ip6_make_flowlabel(
+ net, skb, fl6->flowlabel,
+ np->autoflowlabel, fl6));
+ }
if (hlimit < 0)
hlimit = ip6_dst_hoplimit(dst);

- ip6_flow_hdr(hdr, tclass, ip6_make_flowlabel(net, skb, fl6->flowlabel,
- np->autoflowlabel, fl6));
-
hdr->payload_len = htons(seg_len);
hdr->nexthdr = proto;
hdr->hop_limit = hlimit;
--
1.9.1
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