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v6.13.7
 1// SPDX-License-Identifier: GPL-2.0
 2/* Copyright (c) 2021 Facebook */
 3
 4#include <linux/bpf.h>
 5#include <bpf/bpf_helpers.h>
 6
 7int a[4];
 8const volatile int off = 4000;
 9
10SEC("raw_tp/sys_enter")
11int good_prog(const void *ctx)
12{
13	a[0] = (int)(long)ctx;
14	return a[1];
15}
16
17SEC("raw_tp/sys_enter")
18int bad_prog(const void *ctx)
19{
20	/* out of bounds access */
21	return a[off];
22}
23
24char _license[] SEC("license") = "GPL";
v6.8
 1// SPDX-License-Identifier: GPL-2.0
 2/* Copyright (c) 2021 Facebook */
 3
 4#include <linux/bpf.h>
 5#include <bpf/bpf_helpers.h>
 6
 7int a[4];
 8const volatile int off = 4000;
 9
10SEC("raw_tp/sys_enter")
11int good_prog(const void *ctx)
12{
13	a[0] = (int)(long)ctx;
14	return a[1];
15}
16
17SEC("raw_tp/sys_enter")
18int bad_prog(const void *ctx)
19{
20	/* out of bounds access */
21	return a[off];
22}
23
24char _license[] SEC("license") = "GPL";