Bananymous
/
banan-os
1
1
Fork 1
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Kernel: Fix potential UB in AML OpRegion initialization

This commit is contained in:
Bananymous 2025-08-10 22:39:41 +03:00
parent c96c264801
commit 695262624d
1 changed files with 15 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
kernel/kernel/ACPI/AML/Namespace.cpp
View File

@ -243,14 +243,27 @@ namespace Kernel::ACPI::AML
BAN::ErrorOr<void> Namespace::initialize_op_regions()
{
struct FullNode
{
Scope scope;
Reference* reference;
};
BAN::Vector<FullNode> op_regions;
for (const auto& [obj_path, obj_ref] : m_named_objects)
{
if (obj_ref->node.type != Node::Type::OpRegion)
continue;
// FIXME: if _REG adds stuff to namespace, iterators are invalidated
(void)opregion_call_reg(obj_path, obj_ref->node);
TRY(op_regions.emplace_back(
TRY(obj_path.copy()),
obj_ref
));
}
for (const auto& [obj_path, obj_ref] : op_regions)
(void)opregion_call_reg(obj_path, obj_ref->node);
return {};
}