| // SPDX-License-Identifier: GPL-2.0 | |
| /* Copyright (c) 2021 Facebook */ | |
| #include <linux/bpf.h> | |
| #include <bpf/bpf_helpers.h> | |
| int a[4]; | |
| const volatile int off = 4000; | |
| SEC("raw_tp/sys_enter") | |
| int good_prog(const void *ctx) | |
| { | |
| a[0] = (int)(long)ctx; | |
| return a[1]; | |
| } | |
| SEC("raw_tp/sys_enter") | |
| int bad_prog(const void *ctx) | |
| { | |
| /* out of bounds access */ | |
| return a[off]; | |
| } | |
| char _license[] SEC("license") = "GPL"; |