diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/refcounted_kptr_fail.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/refcounted_kptr_fail.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/refcounted_kptr_fail.c b/tools/testing/selftests/bpf/progs/refcounted_kptr_fail.c index 1ef07f6ee580..1553b9c16aa7 100644 --- a/tools/testing/selftests/bpf/progs/refcounted_kptr_fail.c +++ b/tools/testing/selftests/bpf/progs/refcounted_kptr_fail.c @@ -54,6 +54,25 @@ long rbtree_refcounted_node_ref_escapes(void *ctx) } SEC("?tc") +__failure __msg("Possibly NULL pointer passed to trusted arg0") +long refcount_acquire_maybe_null(void *ctx) +{ + struct node_acquire *n, *m; + + n = bpf_obj_new(typeof(*n)); + /* Intentionally not testing !n + * it's MAYBE_NULL for refcount_acquire + */ + m = bpf_refcount_acquire(n); + if (m) + bpf_obj_drop(m); + if (n) + bpf_obj_drop(n); + + return 0; +} + +SEC("?tc") __failure __msg("Unreleased reference id=3 alloc_insn=9") long rbtree_refcounted_node_ref_escapes_owning_input(void *ctx) { |