1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
#include "common.h"
#include "../btf/testdata/bpf_core_read.h"
struct nonexist {
int non_exist;
};
enum nonexist_enum { NON_EXIST = 1 };
__section("socket") int poisoned_single() {
struct nonexist ne;
return core_access(ne.non_exist);
}
__section("socket") int poisoned_double() {
return bpf_core_enum_value(enum nonexist_enum, NON_EXIST);
}
extern int invalid_kfunc(void) __ksym __weak;
__section("socket") int poisoned_kfunc() {
// NB: This doesn't go via CO-RE but uses a similar mechanism to generate
// an invalid instruction. We test it here for convenience.
return invalid_kfunc();
}
|
