diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/map_kptr_fail.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/map_kptr_fail.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/tools/testing/selftests/bpf/progs/map_kptr_fail.c b/tools/testing/selftests/bpf/progs/map_kptr_fail.c index 4c0ff01f1a96..f11848dfa78f 100644 --- a/tools/testing/selftests/bpf/progs/map_kptr_fail.c +++ b/tools/testing/selftests/bpf/progs/map_kptr_fail.c @@ -252,7 +252,7 @@ int reject_untrusted_store_to_ref(struct __sk_buff *ctx) } SEC("?tc") -__failure __msg("R2 must be referenced") +__failure __msg("release helper bpf_kptr_xchg expects referenced PTR_TO_BTF_ID passed to R2") int reject_untrusted_xchg(struct __sk_buff *ctx) { struct prog_test_ref_kfunc *p; @@ -272,7 +272,7 @@ int reject_untrusted_xchg(struct __sk_buff *ctx) SEC("?tc") __failure -__msg("invalid kptr access, R2 type=ptr_prog_test_ref_kfunc expected=ptr_prog_test_member") +__msg("invalid kptr access, R2 type=trusted_ptr_prog_test_ref_kfunc expected=ptr_prog_test_member") int reject_bad_type_xchg(struct __sk_buff *ctx) { struct prog_test_ref_kfunc *ref_ptr; @@ -291,7 +291,7 @@ int reject_bad_type_xchg(struct __sk_buff *ctx) } SEC("?tc") -__failure __msg("invalid kptr access, R2 type=ptr_prog_test_ref_kfunc") +__failure __msg("invalid kptr access, R2 type=trusted_ptr_prog_test_ref_kfunc") int reject_member_of_ref_xchg(struct __sk_buff *ctx) { struct prog_test_ref_kfunc *ref_ptr; @@ -364,7 +364,7 @@ int kptr_xchg_ref_state(struct __sk_buff *ctx) } SEC("?tc") -__failure __msg("Possibly NULL pointer passed to helper arg2") +__failure __msg("Possibly NULL pointer passed to helper R2") int kptr_xchg_possibly_null(struct __sk_buff *ctx) { struct prog_test_ref_kfunc *p; @@ -385,4 +385,19 @@ int kptr_xchg_possibly_null(struct __sk_buff *ctx) return 0; } +SEC("?tc") +__failure __msg("invalid kptr access, R") +int reject_scalar_store_to_kptr(struct __sk_buff *ctx) +{ + struct map_value *v; + int key = 0; + + v = bpf_map_lookup_elem(&array_map, &key); + if (!v) + return 0; + + *(volatile u64 *)&v->unref_ptr = 0xBADC0DE; + return 0; +} + char _license[] SEC("license") = "GPL"; |