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| author |   Kangjie Lu <kjlu@umn.edu> | 2019-03-16 16:46:05 -0500 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-03-16 18:19:49 -0700 |
| commit | 517ccc2aa50dbd7767a9eb8e1d9987a3ed7ced3e (patch) | |
| tree | beff239c4d9e8105e6f547b3e9f2d2de2a5d7eaf /net | |
| parent | tun: add a missing rcu_read_unlock() in error path (diff) | |
| download | linux-dev-517ccc2aa50dbd7767a9eb8e1d9987a3ed7ced3e.tar.xz linux-dev-517ccc2aa50dbd7767a9eb8e1d9987a3ed7ced3e.zip | |
net: tipc: fix a missing check for nla_nest_start
nla_nest_start may fail. The fix check its status and returns
-EMSGSIZE in case it fails.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/tipc/socket.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 3274ef625dba..d6b26862b34e 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -3255,6 +3255,8 @@ static int __tipc_nl_add_sk_con(struct sk_buff *skb, struct tipc_sock *tsk) peer_port = tsk_peer_port(tsk); nest = nla_nest_start(skb, TIPC_NLA_SOCK_CON); + if (!nest) + return -EMSGSIZE; if (nla_put_u32(skb, TIPC_NLA_CON_NODE, peer_node)) goto msg_full; |