mirror of
https://github.com/RGBCube/serenity
synced 2026-01-15 03:10:59 +00:00
f7a1f28d7f
This commit adds minimal support for compiler-instrumentation based memory access sanitization. Currently we only support detection of kmalloc redzone accesses, and kmalloc use-after-free accesses. Support for inline checks (for improved performance), and for stack use-after-return and use-after-return detection is left for future PRs.
31 lines
839 B
C++
31 lines
839 B
C++
/*
|
|
* Copyright (c) 2023, Idan Horowitz <idan.horowitz@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <Kernel/FileSystem/SysFS/Subsystems/Kernel/Configuration/KASANDeadly.h>
|
|
#include <Kernel/Security/AddressSanitizer.h>
|
|
|
|
namespace Kernel {
|
|
|
|
UNMAP_AFTER_INIT SysFSKASANDeadly::SysFSKASANDeadly(SysFSDirectory const& parent_directory)
|
|
: SysFSSystemBooleanVariable(parent_directory)
|
|
{
|
|
}
|
|
|
|
UNMAP_AFTER_INIT NonnullRefPtr<SysFSKASANDeadly> SysFSKASANDeadly::must_create(SysFSDirectory const& parent_directory)
|
|
{
|
|
return adopt_ref_if_nonnull(new (nothrow) SysFSKASANDeadly(parent_directory)).release_nonnull();
|
|
}
|
|
|
|
bool SysFSKASANDeadly::value() const
|
|
{
|
|
return AddressSanitizer::g_kasan_is_deadly;
|
|
}
|
|
void SysFSKASANDeadly::set_value(bool new_value)
|
|
{
|
|
AddressSanitizer::g_kasan_is_deadly = new_value;
|
|
}
|
|
|
|
}
|