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[NETFILTER]: nf_conntrack_netbios_ns: fix uninitialized member in expectation

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->helper is uninitialized in the expectation registered by the netbios_ns
helper and it later copied to the expected connection, which causes invalid
memory dereferences when trying to call the helper.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2007-01-09 00:03:26 -08:00 committed by David S. Miller
parent c1d2a1965a
commit 88044c8c96
1 changed files with 1 additions and 0 deletions
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net/netfilter/nf_conntrack_netbios_ns.c
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@ -89,6 +89,7 @@ static int help(struct sk_buff **pskb, unsigned int protoff,
exp->expectfn = NULL; exp->expectfn = NULL;
exp->flags = NF_CT_EXPECT_PERMANENT; exp->flags = NF_CT_EXPECT_PERMANENT;
exp->helper = NULL;
nf_conntrack_expect_related(exp); nf_conntrack_expect_related(exp);
nf_conntrack_expect_put(exp); nf_conntrack_expect_put(exp);