tools/testing/selftests/bpf/progs/struct_ops_nulled_out_cb.c

Source file repositories/reference/linux-study-clean/tools/testing/selftests/bpf/progs/struct_ops_nulled_out_cb.c

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/bpf/progs/struct_ops_nulled_out_cb.c
Extension
.c
Size
468 bytes
Lines
23
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
#include <vmlinux.h>
#include <bpf/bpf_tracing.h>
#include "../test_kmods/bpf_testmod.h"

char _license[] SEC("license") = "GPL";

int rand;
int arr[1];

SEC("struct_ops/test_1")
int BPF_PROG(test_1_turn_off)
{
	return arr[rand]; /* potentially way out of range access */
}

SEC(".struct_ops.link")
struct bpf_testmod_ops ops = {
	.test_1 = (void *)test_1_turn_off,
};

Annotation

Implementation Notes