netfilter: xt_CT: fix unset return value if conntrack zone are disabled

commit 4610476d89d53714ca94aae081fa035908bc137a upstream.

net/netfilter/xt_CT.c: In function ‘xt_ct_tg_check_v1’:
net/netfilter/xt_CT.c:250:6: warning: ‘ret’ may be used uninitialized in this function [-Wmaybe-uninitialized]
net/netfilter/xt_CT.c: In function ‘xt_ct_tg_check_v0’:
net/netfilter/xt_CT.c:112:6: warning: ‘ret’ may be used uninitialized in this function [-Wmaybe-uninitialized]

Reported-by: Borislav Petkov <bp@alien8.de>
Acked-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/net/netfilter/xt_CT.c b/net/netfilter/xt_CT.c
index aeeaf5c38b53d6e8320d2a9e00252e233c29a1ab..8461605a3c154caac9eea92036f6a7d59b529581 100644 (file)
--- a/net/netfilter/xt_CT.c
+++ b/net/netfilter/xt_CT.c
@@ -109,7 +109,7 @@ static int xt_ct_tg_check_v0(const struct xt_tgchk_param *par)
        struct xt_ct_target_info *info = par->targinfo;
        struct nf_conntrack_tuple t;
        struct nf_conn *ct;
-       int ret;
+       int ret = -EOPNOTSUPP;
 
        if (info->flags & ~XT_CT_NOTRACK)
                return -EINVAL;
@@ -243,7 +243,7 @@ static int xt_ct_tg_check_v1(const struct xt_tgchk_param *par)
        struct xt_ct_target_info_v1 *info = par->targinfo;
        struct nf_conntrack_tuple t;
        struct nf_conn *ct;
-       int ret;
+       int ret = -EOPNOTSUPP;
 
        if (info->flags & ~XT_CT_NOTRACK)
                return -EINVAL;