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netfilter: nf_conntrack: restrict runtime expect hashsize modifications

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Expectation hashtable size was simply glued to a variable with no code
to rehash expectations, so it was a bug to allow writing to it.
Make "expect_hashsize" readonly.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Alexey Dobriyan
2010-02-04 18:24:06 +01:00
committed by Patrick McHardy
parent ab59b19be7
commit 38c7233b28
1 changed files with 1 additions and 1 deletions
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net/netfilter/nf_conntrack_expect.c
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@@ -569,7 +569,7 @@ static void exp_proc_remove(struct net *net)
#endif /* CONFIG_PROC_FS */
}
module_param_named(expect_hashsize, nf_ct_expect_hsize, uint, 0600);
module_param_named(expect_hashsize, nf_ct_expect_hsize, uint, 0400);
int nf_conntrack_expect_init(struct net *net)
{