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netfilter: nf_conntrack: restrict runtime expect hashsize modifications

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commit 13ccdfc2af upstream.

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>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alexey Dobriyan
2010-02-08 11:17:22 -08:00
committed by Greg Kroah-Hartman
parent 747edef00c
commit 51d3a34794
1 changed files with 1 additions and 1 deletions
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2
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)
{