1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
#include <vmlinux.h>
#include <bpf/bpf_tracing.h>
#include "../test_kmods/bpf_testmod.h"
#include "bpf_misc.h"
char _license[] SEC("license") = "GPL";
/* Test that the verifier rejects a program that acquires a referenced
* kptr through context without releasing the reference
*/
SEC("struct_ops/test_refcounted")
__failure __msg("Unreleased reference id=1 alloc_insn=0")
int BPF_PROG(refcounted_fail__ref_leak, int dummy,
struct task_struct *task)
{
return 0;
}
SEC(".struct_ops.link")
struct bpf_testmod_ops testmod_ref_acquire = {
.test_refcounted = (void *)refcounted_fail__ref_leak,
};