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| author | Jakub Kicinski <kuba@kernel.org> | 2021-12-02 11:44:56 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-12-02 11:44:56 -0800 |
| commit | fc993be36f9ea7fc286d84d8471a1a20e871aad4 (patch) | |
| tree | cef440a299ed7d1c2418992f7d724b4d86e6d83b /net/netlink | |
| parent | 36d7d36fcf69e7f95068307f8bc519af31085431 (diff) | |
| parent | a51e3ac43ddbad891c2b1a4f3aa52371d6939570 (diff) | |
| download | linux-fc993be36f9ea7fc286d84d8471a1a20e871aad4.tar.gz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/netlink')
| -rw-r--r-- | net/netlink/af_netlink.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 1a19d179e913a..4be2d97ff93e1 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -1848,6 +1848,11 @@ static int netlink_sendmsg(struct socket *sock, struct msghdr *msg, size_t len) if (msg->msg_flags & MSG_OOB) return -EOPNOTSUPP; + if (len == 0) { + pr_warn_once("Zero length message leads to an empty skb\n"); + return -ENODATA; + } + err = scm_send(sock, msg, &scm, true); if (err < 0) return err; |