diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/cpumask_failure.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/cpumask_failure.c | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/progs/cpumask_failure.c b/tools/testing/selftests/bpf/progs/cpumask_failure.c index b40b52548ffb..61c32e91e8c3 100644 --- a/tools/testing/selftests/bpf/progs/cpumask_failure.c +++ b/tools/testing/selftests/bpf/progs/cpumask_failure.c @@ -110,7 +110,7 @@ SEC("tp_btf/task_newtask") __failure __msg("NULL pointer passed to trusted arg0") int BPF_PROG(test_cpumask_null, struct task_struct *task, u64 clone_flags) { - /* NULL passed to KF_TRUSTED_ARGS kfunc. */ + /* NULL passed to kfunc. */ bpf_cpumask_empty(NULL); return 0; @@ -222,3 +222,41 @@ int BPF_PROG(test_invalid_nested_array, struct task_struct *task, u64 clone_flag return 0; } + +SEC("tp_btf/task_newtask") +__failure __msg("type=scalar expected=fp") +int BPF_PROG(test_populate_invalid_destination, struct task_struct *task, u64 clone_flags) +{ + struct bpf_cpumask *invalid = (struct bpf_cpumask *)0x123456; + u64 bits; + int ret; + + ret = bpf_cpumask_populate((struct cpumask *)invalid, &bits, sizeof(bits)); + if (!ret) + err = 2; + + return 0; +} + +SEC("tp_btf/task_newtask") +__failure __msg("leads to invalid memory access") +int BPF_PROG(test_populate_invalid_source, struct task_struct *task, u64 clone_flags) +{ + void *garbage = (void *)0x123456; + struct bpf_cpumask *local; + int ret; + + local = create_cpumask(); + if (!local) { + err = 1; + return 0; + } + + ret = bpf_cpumask_populate((struct cpumask *)local, garbage, 8); + if (!ret) + err = 2; + + bpf_cpumask_release(local); + + return 0; +} |