diff options
Diffstat (limited to 'net/ipv4/devinet.c')
| -rw-r--r-- | net/ipv4/devinet.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index 480ace9819f6..c40203640966 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -1140,7 +1140,7 @@ static int inet_fill_ifaddr(struct sk_buff *skb, struct in_ifaddr *ifa, nlh = nlmsg_put(skb, pid, seq, event, sizeof(*ifm), flags); if (nlh == NULL) - return -ENOBUFS; + return -EMSGSIZE; ifm = nlmsg_data(nlh); ifm->ifa_family = AF_INET; @@ -1167,7 +1167,8 @@ static int inet_fill_ifaddr(struct sk_buff *skb, struct in_ifaddr *ifa, return nlmsg_end(skb, nlh); nla_put_failure: - return nlmsg_cancel(skb, nlh); + nlmsg_cancel(skb, nlh); + return -EMSGSIZE; } static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb) @@ -1225,9 +1226,12 @@ static void rtmsg_ifa(int event, struct in_ifaddr* ifa, struct nlmsghdr *nlh, goto errout; err = inet_fill_ifaddr(skb, ifa, pid, seq, event, 0); - /* failure implies BUG in inet_nlmsg_size() */ - BUG_ON(err < 0); - + if (err < 0) { + /* -EMSGSIZE implies BUG in inet_nlmsg_size() */ + WARN_ON(err == -EMSGSIZE); + kfree_skb(skb); + goto errout; + } err = rtnl_notify(skb, pid, RTNLGRP_IPV4_IFADDR, nlh, GFP_KERNEL); errout: if (err < 0) |