diff options
Diffstat (limited to 'net/netfilter')
| -rw-r--r-- | net/netfilter/xt_owner.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/netfilter/xt_owner.c b/net/netfilter/xt_owner.c index a8784502aca6..ee597fdc5db7 100644 --- a/net/netfilter/xt_owner.c +++ b/net/netfilter/xt_owner.c @@ -25,6 +25,9 @@ static int owner_check(const struct xt_mtchk_param *par) struct xt_owner_match_info *info = par->matchinfo; struct net *net = par->net; + if (info->match & ~XT_OWNER_MASK) + return -EINVAL; + /* Only allow the common case where the userns of the writer * matches the userns of the network namespace. */ |