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-rw-r--r--kernel/bpf/verifier.c41
1 files changed, 5 insertions, 36 deletions
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 068f763dcefb..7d62fd576089 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -8301,16 +8301,6 @@ static bool arg_type_is_dynptr(enum bpf_arg_type type)
return base_type(type) == ARG_PTR_TO_DYNPTR;
}
-static int int_ptr_type_to_size(enum bpf_arg_type type)
-{
- if (type == ARG_PTR_TO_INT)
- return sizeof(u32);
- else if (type == ARG_PTR_TO_LONG)
- return sizeof(u64);
-
- return -EINVAL;
-}
-
static int resolve_map_arg_type(struct bpf_verifier_env *env,
const struct bpf_call_arg_meta *meta,
enum bpf_arg_type *arg_type)
@@ -8383,16 +8373,6 @@ static const struct bpf_reg_types mem_types = {
},
};
-static const struct bpf_reg_types int_ptr_types = {
- .types = {
- PTR_TO_STACK,
- PTR_TO_PACKET,
- PTR_TO_PACKET_META,
- PTR_TO_MAP_KEY,
- PTR_TO_MAP_VALUE,
- },
-};
-
static const struct bpf_reg_types spin_lock_types = {
.types = {
PTR_TO_MAP_VALUE,
@@ -8453,8 +8433,6 @@ static const struct bpf_reg_types *compatible_reg_types[__BPF_ARG_TYPE_MAX] = {
[ARG_PTR_TO_SPIN_LOCK] = &spin_lock_types,
[ARG_PTR_TO_MEM] = &mem_types,
[ARG_PTR_TO_RINGBUF_MEM] = &ringbuf_mem_types,
- [ARG_PTR_TO_INT] = &int_ptr_types,
- [ARG_PTR_TO_LONG] = &int_ptr_types,
[ARG_PTR_TO_PERCPU_BTF_ID] = &percpu_btf_ptr_types,
[ARG_PTR_TO_FUNC] = &func_ptr_types,
[ARG_PTR_TO_STACK] = &stack_ptr_types,
@@ -9017,9 +8995,11 @@ skip_type_check:
*/
meta->raw_mode = arg_type & MEM_UNINIT;
if (arg_type & MEM_FIXED_SIZE) {
- err = check_helper_mem_access(env, regno,
- fn->arg_size[arg], false,
- meta);
+ err = check_helper_mem_access(env, regno, fn->arg_size[arg], false, meta);
+ if (err)
+ return err;
+ if (arg_type & MEM_ALIGNED)
+ err = check_ptr_alignment(env, reg, 0, fn->arg_size[arg], true);
}
break;
case ARG_CONST_SIZE:
@@ -9044,17 +9024,6 @@ skip_type_check:
if (err)
return err;
break;
- case ARG_PTR_TO_INT:
- case ARG_PTR_TO_LONG:
- {
- int size = int_ptr_type_to_size(arg_type);
-
- err = check_helper_mem_access(env, regno, size, false, meta);
- if (err)
- return err;
- err = check_ptr_alignment(env, reg, 0, size, true);
- break;
- }
case ARG_PTR_TO_CONST_STR:
{
err = check_reg_const_str(env, reg, regno);