diff options
| author |   Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> | 2006-02-04 02:12:14 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@sunset.davemloft.net> | 2006-02-04 23:51:17 -0800 |
| commit | ddc8d029ac6813827849801bce2d8c8813070db6 (patch) | |
| tree | f0ae3607018873a8ed3594b9d81f155aed75b906 /net | |
| parent | [NETFILTER]: ctnetlink: add MODULE_ALIAS for expectation subsystem (diff) | |
| download | linux-dev-ddc8d029ac6813827849801bce2d8c8813070db6.tar.xz linux-dev-ddc8d029ac6813827849801bce2d8c8813070db6.zip | |
[NETFILTER]: nf_conntrack: check address family when finding protocol module
__nf_conntrack_{l3}proto_find() doesn't check the passed protocol family,
then it's possible to touch out of the array which has only AF_MAX items.
Spotted by Pablo Neira Ayuso.
Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/netfilter/nf_conntrack_core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index 62bb509f05d4..0ce337a1d974 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -188,7 +188,7 @@ extern struct nf_conntrack_protocol nf_conntrack_generic_protocol; struct nf_conntrack_protocol * __nf_ct_proto_find(u_int16_t l3proto, u_int8_t protocol) { - if (unlikely(nf_ct_protos[l3proto] == NULL)) + if (unlikely(l3proto >= AF_MAX || nf_ct_protos[l3proto] == NULL)) return &nf_conntrack_generic_protocol; return nf_ct_protos[l3proto][protocol]; |