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| author |   Pavel Emelyanov <xemul@openvz.org> | 2008-03-26 02:27:09 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2008-03-26 02:27:09 -0700 |
| commit | 7c0ecc4c4f8fd90988aab8a95297b9c0038b6160 (patch) | |
| tree | 3c937731c0bf2c3ddfd94e2141d83af596f98d9e | |
| parent | [AX25]: Remove obsolete references to BKL from TODO file. (diff) | |
| download | linux-dev-7c0ecc4c4f8fd90988aab8a95297b9c0038b6160.tar.xz linux-dev-7c0ecc4c4f8fd90988aab8a95297b9c0038b6160.zip | |
[ICMP]: Dst entry leak in icmp_send host re-lookup code (v2).
Commit 8b7817f3a959ed99d7443afc12f78a7e1fcc2063 ([IPSEC]: Add ICMP host
relookup support) introduced some dst leaks on error paths: the rt
pointer can be forgotten to be put. Fix it bu going to a proper label.
Found after net namespace's lo refused to unregister :) Many thanks to
Den for valuable help during debugging.
Herbert pointed out, that xfrm_lookup() will put the rtable in case
of error itself, so the first goto fix is redundant.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv4/icmp.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c index a13c074dac09..a944e8053e28 100644 --- a/net/ipv4/icmp.c +++ b/net/ipv4/icmp.c @@ -591,7 +591,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info) } if (xfrm_decode_session_reverse(skb_in, &fl, AF_INET)) - goto out_unlock; + goto ende; if (inet_addr_type(net, fl.fl4_src) == RTN_LOCAL) err = __ip_route_output_key(net, &rt2, &fl); @@ -601,7 +601,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info) fl2.fl4_dst = fl.fl4_src; if (ip_route_output_key(net, &rt2, &fl2)) - goto out_unlock; + goto ende; /* Ugh! */ odst = skb_in->dst; @@ -614,7 +614,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info) } if (err) - goto out_unlock; + goto ende; err = xfrm_lookup((struct dst_entry **)&rt2, &fl, NULL, XFRM_LOOKUP_ICMP); |