diff --git a/kernel/bpf/cgroup.c b/kernel/bpf/cgroup.c
index 6d92e393e1bc..d3593a520bb7 100644
--- a/kernel/bpf/cgroup.c
+++ b/kernel/bpf/cgroup.c
@@ -1516,7 +1516,7 @@ int __cgroup_bpf_run_filter_getsockopt(struct sock *sk, int level,
 		goto out;
 	}
 
-	if (ctx.optlen > max_optlen || ctx.optlen < 0) {
+	if (optval && (ctx.optlen > max_optlen || ctx.optlen < 0)) {
 		ret = -EFAULT;
 		goto out;
 	}
@@ -1530,8 +1530,11 @@ int __cgroup_bpf_run_filter_getsockopt(struct sock *sk, int level,
 	}
 
 	if (ctx.optlen != 0) {
-		if (copy_to_user(optval, ctx.optval, ctx.optlen) ||
-		    put_user(ctx.optlen, optlen)) {
+		if (optval && copy_to_user(optval, ctx.optval, ctx.optlen)) {
+			ret = -EFAULT;
+			goto out;
+		}
+		if (put_user(ctx.optlen, optlen)) {
 			ret = -EFAULT;
 			goto out;
 		}