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-rw-r--r--net/ipv6/udp.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index d538fafaf4a9..2464fba569b4 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1045,6 +1045,8 @@ static void udp_v6_flush_pending_frames(struct sock *sk)
static int udpv6_pre_connect(struct sock *sk, struct sockaddr *uaddr,
int addr_len)
{
+ if (addr_len < offsetofend(struct sockaddr, sa_family))
+ return -EINVAL;
/* The following checks are replicated from __ip6_datagram_connect()
* and intended to prevent BPF program called below from accessing
* bytes that are out of the bound specified by user in addr_len.