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| author | Paolo Abeni <pabeni@redhat.com> | 2015-11-18 16:40:19 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-11-18 16:25:01 -0500 |
| commit | 206b49500df558dbc15d8836b09f6397ec5ed8bb (patch) | |
| tree | 03a2b1282be6fcbefcdbfcafa4bbdfd14e45f76b /net | |
| parent | 022be25c2498e1baa82562aba9f3380b1ef70fa6 (diff) | |
| download | lwn-206b49500df558dbc15d8836b09f6397ec5ed8bb.tar.gz lwn-206b49500df558dbc15d8836b09f6397ec5ed8bb.zip | |
net/ip6_tunnel: fix dst leak
the commit cdf3464e6c6b ("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: cdf3464e6c6b ("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>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv6/ip6_tunnel.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index eabffbb89795..137fca42aaa6 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -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); |