* [PATCH] Fix forgotten module release in xt_CONNMARK and xt_CONNSECMARK
@ 2007-11-29 22:18 Jan Engelhardt
2007-11-29 22:28 ` Patrick McHardy
0 siblings, 1 reply; 2+ messages in thread
From: Jan Engelhardt @ 2007-11-29 22:18 UTC (permalink / raw)
To: kaber
Cc: Netfilter Developer Mailing List, Linux Kernel Mailing List,
davem, stable
This one is against davem's net-2.6.25 branch.
===Begins here===
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 <jengelh@computergmbh.de>
---
net/netfilter/xt_CONNMARK.c | 10 +++++-----
net/netfilter/xt_CONNSECMARK.c | 10 +++++-----
2 files changed, 10 insertions(+), 10 deletions(-)
Index: linux-2.6/net/netfilter/xt_CONNMARK.c
===================================================================
--- linux-2.6.orig/net/netfilter/xt_CONNMARK.c
+++ linux-2.6/net/netfilter/xt_CONNMARK.c
@@ -81,11 +81,6 @@ connmark_tg_check(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 "
@@ -98,6 +93,11 @@ connmark_tg_check(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;
}
Index: linux-2.6/net/netfilter/xt_CONNSECMARK.c
===================================================================
--- linux-2.6.orig/net/netfilter/xt_CONNSECMARK.c
+++ linux-2.6/net/netfilter/xt_CONNSECMARK.c
@@ -91,11 +91,6 @@ connsecmark_tg_check(const char *tablena
{
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 @@ connsecmark_tg_check(const char *tablena
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;
}
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] Fix forgotten module release in xt_CONNMARK and xt_CONNSECMARK
2007-11-29 22:18 [PATCH] Fix forgotten module release in xt_CONNMARK and xt_CONNSECMARK Jan Engelhardt
@ 2007-11-29 22:28 ` Patrick McHardy
0 siblings, 0 replies; 2+ messages in thread
From: Patrick McHardy @ 2007-11-29 22:28 UTC (permalink / raw)
To: Jan Engelhardt
Cc: Netfilter Developer Mailing List, Linux Kernel Mailing List,
davem, stable
Jan Engelhardt wrote:
> 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.
>
Applied, thanks Jan.
^ permalink raw reply [flat|nested] 2+ messages in thread
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