diff options
| -rw-r--r-- | net/ipv6/datagram.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c index b9c2de84a8a2..0f0f94a40335 100644 --- a/net/ipv6/datagram.c +++ b/net/ipv6/datagram.c @@ -705,6 +705,11 @@ int datagram_send_ctl(struct net *net, } *hlimit = *(int *)CMSG_DATA(cmsg); + if (*hlimit < -1 || *hlimit > 0xff) { + err = -EINVAL; + goto exit_f; + } + break; case IPV6_TCLASS: |