[NETFILTER]: SNMP NAT: fix memleak in snmp_object_decode

If kmalloc fails, error path leaks data allocated from asn1_oid_decode().

Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/net/ipv4/netfilter/ip_nat_snmp_basic.c b/net/ipv4/netfilter/ip_nat_snmp_basic.c
index 688a2f29fadf..c33244263b90 100644
--- a/net/ipv4/netfilter/ip_nat_snmp_basic.c
+++ b/net/ipv4/netfilter/ip_nat_snmp_basic.c
@@ -768,6 +768,7 @@ static unsigned char snmp_object_decode(struct asn1_ctx *ctx,
                         len *= sizeof(unsigned long);
                         *obj = kmalloc(sizeof(struct snmp_object) + len, GFP_ATOMIC);
                         if (*obj == NULL) {
+                                kfree(lp);
                                 kfree(id);
                                 if (net_ratelimit())
                                         printk("OOM in bsalg (%d)\n", __LINE__);