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linux-sg2042
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net/ip6_tunnel: fix dst leak 

the commit cdf3464e6c ("ipv6: Fix dst_entry refcnt bugs in ip6_tunnel")
introduced percpu storage for ip6_tunnel dst cache, but while clearing
such cache it used raw_cpu_ptr to walk the per cpu entries, so cached
dst on non current cpu are not actually reset.

This patch replaces raw_cpu_ptr with per_cpu_ptr, properly cleaning
such storage.

Fixes: cdf3464e6c ("ipv6: Fix dst_entry refcnt bugs in ip6_tunnel")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Paolo Abeni 2015-11-18 16:40:19 +01:00 committed by David S. Miller
parent 022be25c24
commit 206b49500d
1 changed files with 1 additions and 1 deletions
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2
net/ipv6/ip6_tunnel.c
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@ -177,7 +177,7 @@ void ip6_tnl_dst_reset(struct ip6_tnl *t)
int i;
for_each_possible_cpu(i)
ip6_tnl_per_cpu_dst_set(raw_cpu_ptr(t->dst_cache), NULL);
ip6_tnl_per_cpu_dst_set(per_cpu_ptr(t->dst_cache, i), NULL);
}
EXPORT_SYMBOL_GPL(ip6_tnl_dst_reset);