netfilter: nf_nat_snmp_basic: fix a range check in NAT for SNMP

Fix a range check in netfilter IP NAT for SNMP to always use a big enough size
variable that the compiler won't moan about comparing it to ULONG_MAX/8 on a
64-bit platform.

Signed-off-by: David Howells <[email protected]>
Signed-off-by: Patrick McHardy <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

diff --git a/net/ipv4/netfilter/nf_nat_snmp_basic.c b/net/ipv4/netfilter/nf_nat_snmp_basic.c
index 7750c97fde7bb6bdc6ae05061b2528d3d3e31310..ffeaffc3fffe6c31c78e858b9a1fa61fe71ba03e 100644 (file)
--- a/net/ipv4/netfilter/nf_nat_snmp_basic.c
+++ b/net/ipv4/netfilter/nf_nat_snmp_basic.c
@@ -439,8 +439,8 @@ static unsigned char asn1_oid_decode(struct asn1_ctx *ctx,
                                     unsigned int *len)
 {
        unsigned long subid;
-       unsigned int  size;
        unsigned long *optr;
+       size_t size;
 
        size = eoc - ctx->pointer + 1;