diff options
| author |   Hans Schillstrom <hans@schillstrom.com> | 2013-05-15 01:23:45 +0000 |
|---|---|---|
| committer |   Pablo Neira Ayuso <pablo@netfilter.org> | 2013-05-15 14:11:07 +0200 |
| commit | 8cdb46da06ea94543a3b2e53e3e92736421d1093 (patch) | |
| tree | 2f3d5703ee736daf10a3556c5c80f6bcca8731b8 /net/netfilter/xt_NFLOG.c | |
| parent | netfilter: update MAINTAINERS file (diff) | |
| download | linux-dev-8cdb46da06ea94543a3b2e53e3e92736421d1093.tar.xz linux-dev-8cdb46da06ea94543a3b2e53e3e92736421d1093.zip | |
netfilter: log: netns NULL ptr bug when calling from conntrack
Since (69b34fb netfilter: xt_LOG: add net namespace support
for xt_LOG), we hit this:
[ 4224.708977] BUG: unable to handle kernel NULL pointer dereference at 0000000000000388
[ 4224.709074] IP: [<ffffffff8147f699>] ipt_log_packet+0x29/0x270
when callling log functions from conntrack both in and out
are NULL i.e. the net pointer is invalid.
Adding struct net *net in call to nf_logfn() will secure that
there always is a vaild net ptr.
Reported as netfilter's bugzilla bug 818:
https://bugzilla.netfilter.org/show_bug.cgi?id=818
Reported-by: Ronald <ronald645@gmail.com>
Signed-off-by: Hans Schillstrom <hans@schillstrom.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/xt_NFLOG.c')
| -rw-r--r-- | net/netfilter/xt_NFLOG.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/netfilter/xt_NFLOG.c b/net/netfilter/xt_NFLOG.c index a17dd0f589b2..fb7497c928a0 100644 --- a/net/netfilter/xt_NFLOG.c +++ b/net/netfilter/xt_NFLOG.c @@ -26,13 +26,14 @@ nflog_tg(struct sk_buff *skb, const struct xt_action_param *par) { const struct xt_nflog_info *info = par->targinfo; struct nf_loginfo li; + struct net *net = dev_net(par->in ? par->in : par->out); li.type = NF_LOG_TYPE_ULOG; li.u.ulog.copy_len = info->len; li.u.ulog.group = info->group; li.u.ulog.qthreshold = info->threshold; - nfulnl_log_packet(par->family, par->hooknum, skb, par->in, + nfulnl_log_packet(net, par->family, par->hooknum, skb, par->in, par->out, &li, info->prefix); return XT_CONTINUE; } |