2.6.23-stable review patch. If anyone has any objections, please let us
know.
------------------
From: Jan Engelhardt <[email protected]>
[NETFILTER]: fix forgotten module release in xt_CONNMARK and xt_CONNSECMARK
[ Upstream commit: 67b4af297033f5f65999885542f95ba7b562848a ]
Fix forgotten module release in xt_CONNMARK and xt_CONNSECMARK
When xt_CONNMARK is used outside the mangle table and the user specified
"--restore-mark", the connmark_tg_check() function will (correctly)
error out, but (incorrectly) forgets to release the L3 conntrack module.
Same for xt_CONNSECMARK.
Fix is to move the call to acquire the L3 module after the basic
constraint checks.
Signed-off-by: Jan Engelhardt <[email protected]>
Signed-off-by: Patrick McHardy <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/netfilter/xt_CONNMARK.c | 10 +++++-----
net/netfilter/xt_CONNSECMARK.c | 10 +++++-----
2 files changed, 10 insertions(+), 10 deletions(-)
--- a/net/netfilter/xt_CONNMARK.c
+++ b/net/netfilter/xt_CONNMARK.c
@@ -85,11 +85,6 @@ checkentry(const char *tablename,
{
const struct xt_connmark_target_info *matchinfo = targinfo;
- if (nf_ct_l3proto_try_module_get(target->family) < 0) {
- printk(KERN_WARNING "can't load conntrack support for "
- "proto=%d\n", target->family);
- return false;
- }
if (matchinfo->mode == XT_CONNMARK_RESTORE) {
if (strcmp(tablename, "mangle") != 0) {
printk(KERN_WARNING "CONNMARK: restore can only be "
@@ -102,6 +97,11 @@ checkentry(const char *tablename,
printk(KERN_WARNING "CONNMARK: Only supports 32bit mark\n");
return false;
}
+ if (nf_ct_l3proto_try_module_get(target->family) < 0) {
+ printk(KERN_WARNING "can't load conntrack support for "
+ "proto=%d\n", target->family);
+ return false;
+ }
return true;
}
--- a/net/netfilter/xt_CONNSECMARK.c
+++ b/net/netfilter/xt_CONNSECMARK.c
@@ -91,11 +91,6 @@ static bool checkentry(const char *table
{
const struct xt_connsecmark_target_info *info = targinfo;
- if (nf_ct_l3proto_try_module_get(target->family) < 0) {
- printk(KERN_WARNING "can't load conntrack support for "
- "proto=%d\n", target->family);
- return false;
- }
switch (info->mode) {
case CONNSECMARK_SAVE:
case CONNSECMARK_RESTORE:
@@ -106,6 +101,11 @@ static bool checkentry(const char *table
return false;
}
+ if (nf_ct_l3proto_try_module_get(target->family) < 0) {
+ printk(KERN_WARNING "can't load conntrack support for "
+ "proto=%d\n", target->family);
+ return false;
+ }
return true;
}
--
--
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