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authorPablo Neira Ayuso <pablo@netfilter.org>2014-10-07 19:02:11 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2014-10-07 20:16:31 +0200
commitf0d1f04f0a2f662b6b617e24d115fddcf6ef8723 (patch)
tree32d914b7f1baa5a5d5c01936616425226143c234 /include/uapi
parent91c1a09b33c902e20e09d9742560cc238a714de5 (diff)
downloadop-kernel-dev-f0d1f04f0a2f662b6b617e24d115fddcf6ef8723.zip
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netfilter: fix wrong arithmetics regarding NFT_REJECT_ICMPX_MAX
NFT_REJECT_ICMPX_MAX should be __NFT_REJECT_ICMPX_MAX - 1. nft_reject_icmp_code() and nft_reject_icmpv6_code() are called from the packet path, so BUG_ON in case we try to access an unknown abstracted ICMP code. This should not happen since we already validate this from nft_reject_{inet,bridge}_init(). Fixes: 51b0a5d ("netfilter: nft_reject: introduce icmp code abstraction for inet and bridge") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/linux/netfilter/nf_tables.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index c26df67..f31fe7b 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -774,7 +774,7 @@ enum nft_reject_inet_code {
NFT_REJECT_ICMPX_ADMIN_PROHIBITED,
__NFT_REJECT_ICMPX_MAX
};
-#define NFT_REJECT_ICMPX_MAX (__NFT_REJECT_ICMPX_MAX + 1)
+#define NFT_REJECT_ICMPX_MAX (__NFT_REJECT_ICMPX_MAX - 1)
/**
* enum nft_reject_attributes - nf_tables reject expression netlink attributes
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