diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2007-03-24 21:18:36 +0100 |
|---|---|---|
| committer | Adrian Bunk <bunk@stusta.de> | 2007-03-24 21:18:36 +0100 |
| commit | 9003d12b0a6ae9b19e5f60296c2dec37ff84f73b (patch) | |
| tree | 58a8f7fff5491bddd92042129f6d5b9a4aece2f6 /net/ipv4 | |
| parent | 1bed543f180803523b5baa5b10e9432ea2de5afb (diff) | |
| download | lwn-9003d12b0a6ae9b19e5f60296c2dec37ff84f73b.tar.gz lwn-9003d12b0a6ae9b19e5f60296c2dec37ff84f73b.zip | |
NETFILTER: ctnetlink: check for status attribute existence on conntrack creation
Check that status flags are available in the netlink message received
to create a new conntrack.
Fixes a crash in ctnetlink_create_conntrack when the CTA_STATUS attribute
is not present.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/netfilter/ip_conntrack_netlink.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/net/ipv4/netfilter/ip_conntrack_netlink.c b/net/ipv4/netfilter/ip_conntrack_netlink.c index d4e6d0a3bf20..f558a014d68b 100644 --- a/net/ipv4/netfilter/ip_conntrack_netlink.c +++ b/net/ipv4/netfilter/ip_conntrack_netlink.c @@ -1021,9 +1021,11 @@ ctnetlink_create_conntrack(struct nfattr *cda[], ct->timeout.expires = jiffies + ct->timeout.expires * HZ; ct->status |= IPS_CONFIRMED; - err = ctnetlink_change_status(ct, cda); - if (err < 0) - goto err; + if (cda[CTA_STATUS-1]) { + err = ctnetlink_change_status(ct, cda); + if (err < 0) + goto err; + } if (cda[CTA_PROTOINFO-1]) { err = ctnetlink_change_protoinfo(ct, cda); |