xref: /linux/tools/testing/selftests/bpf/progs/struct_ops_nulled_out_cb.c (revision 1260ed77798502de9c98020040d2995008de10cc)
19d66d60eSAndrii Nakryiko // SPDX-License-Identifier: GPL-2.0
29d66d60eSAndrii Nakryiko /* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
39d66d60eSAndrii Nakryiko #include <vmlinux.h>
49d66d60eSAndrii Nakryiko #include <bpf/bpf_tracing.h>
5*d6212d82SToke Høiland-Jørgensen #include "../test_kmods/bpf_testmod.h"
69d66d60eSAndrii Nakryiko 
79d66d60eSAndrii Nakryiko char _license[] SEC("license") = "GPL";
89d66d60eSAndrii Nakryiko 
99d66d60eSAndrii Nakryiko int rand;
109d66d60eSAndrii Nakryiko int arr[1];
119d66d60eSAndrii Nakryiko 
129d66d60eSAndrii Nakryiko SEC("struct_ops/test_1")
BPF_PROG(test_1_turn_off)139d66d60eSAndrii Nakryiko int BPF_PROG(test_1_turn_off)
149d66d60eSAndrii Nakryiko {
159d66d60eSAndrii Nakryiko 	return arr[rand]; /* potentially way out of range access */
169d66d60eSAndrii Nakryiko }
179d66d60eSAndrii Nakryiko 
189d66d60eSAndrii Nakryiko SEC(".struct_ops.link")
199d66d60eSAndrii Nakryiko struct bpf_testmod_ops ops = {
209d66d60eSAndrii Nakryiko 	.test_1 = (void *)test_1_turn_off,
219d66d60eSAndrii Nakryiko };
229d66d60eSAndrii Nakryiko 
23