xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ipv6: call dst_hold_safe() properly

Browse Source 
Similar as ipv4, ipv6 path also needs to call dst_hold_safe() when
necessary to avoid double free issue on the dst.

Signed-off-by: Wei Wang <weiwan@google.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Wei Wang
2017-06-17 10:42:35 -07:00
committed by David S. Miller
parent 9514528d92
commit ad65a2f056
2 changed files with 4 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
net/ipv6/addrconf.c
View File

@@ -5576,8 +5576,8 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
ip6_del_rt(rt);
}
if (ifp->rt) {
dst_hold(&ifp->rt->dst);
ip6_del_rt(ifp->rt);
if (dst_hold_safe(&ifp->rt->dst))
ip6_del_rt(ifp->rt);
}
rt_genid_bump_ipv6(net);
break;