1 files changed, 35 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_multi_args.c b/tools/testing/selftests/bpf/progs/struct_ops_multi_args.c
new file mode 100644
index 000000000000..c62be15757f0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_multi_args.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2026 Varun R Mallya */
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} prog_array SEC(".maps");
+
+SEC("struct_ops/test_refcounted_multi")
+__failure __msg("program with __ref argument cannot tail call")
+int test_refcounted_multi(unsigned long long *ctx)
+{
+	/* ctx[2] is used because the refcounted variable is the third argument */
+	struct task_struct *refcounted_task = (struct task_struct *)ctx[2];
+
+	bpf_task_release(refcounted_task);
+	bpf_tail_call(ctx, &prog_array, 0);
+
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops testmod_ref_acquire = {
+	.test_refcounted_multi = (void *)test_refcounted_multi,
+};