diff options
Diffstat (limited to 'net/core/fib_rules.c')
| -rw-r--r-- | net/core/fib_rules.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c index 1df6cd4568d..215f1bff048 100644 --- a/net/core/fib_rules.c +++ b/net/core/fib_rules.c @@ -331,7 +331,7 @@ static int fib_nl_fill_rule(struct sk_buff *skb, struct fib_rule *rule, nlh = nlmsg_put(skb, pid, seq, type, sizeof(*frh), flags); if (nlh == NULL) - return -1; + return -EMSGSIZE; frh = nlmsg_data(nlh); frh->table = rule->table; @@ -359,7 +359,8 @@ static int fib_nl_fill_rule(struct sk_buff *skb, struct fib_rule *rule, return nlmsg_end(skb, nlh); nla_put_failure: - return nlmsg_cancel(skb, nlh); + nlmsg_cancel(skb, nlh); + return -EMSGSIZE; } int fib_rules_dump(struct sk_buff *skb, struct netlink_callback *cb, int family) @@ -405,9 +406,12 @@ static void notify_rule_change(int event, struct fib_rule *rule, goto errout; err = fib_nl_fill_rule(skb, rule, pid, nlh->nlmsg_seq, event, 0, ops); - /* failure implies BUG in fib_rule_nlmsg_size() */ - BUG_ON(err < 0); - + if (err < 0) { + /* -EMSGSIZE implies BUG in fib_rule_nlmsg_size() */ + WARN_ON(err == -EMSGSIZE); + kfree_skb(skb); + goto errout; + } err = rtnl_notify(skb, pid, ops->nlgroup, nlh, GFP_KERNEL); errout: if (err < 0) |