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-rw-r--r--net/xdp/xsk.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c
index 5c8e02d56..e3bdfc517 100644
--- a/net/xdp/xsk.c
+++ b/net/xdp/xsk.c
@@ -1127,6 +1127,8 @@ static int xsk_setsockopt(struct socket *sock, int level, int optname,
struct xsk_queue **q;
int entries;
+ if (optlen < sizeof(entries))
+ return -EINVAL;
if (copy_from_sockptr(&entries, optval, sizeof(entries)))
return -EFAULT;