diff options
Diffstat (limited to 'net/ipv4/ping.c')
| -rw-r--r-- | net/ipv4/ping.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c index 76c86e7d5e10..0f443831e851 100644 --- a/net/ipv4/ping.c +++ b/net/ipv4/ping.c @@ -660,6 +660,10 @@ int ping_common_sendmsg(int family, struct msghdr *msg, size_t len, if (len > 0xFFFF || len < icmph_len) return -EMSGSIZE; + /* Must have at least a full ICMP header. */ + if (len < icmph_len) + return -EINVAL; + /* * Check the flags. */ |