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ladybird/Kernel
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Brian Gianforcaro 458244c0c1 Kernel: Enable -ftrivial-auto-var-init as a security mitigation 
The flag will automatically initialize all variables to a pattern based
on it's type. The goal being here is to eradicate an entire bug class
of issues that can originate from uninitialized stack memory.

Some examples include:

 - Kernel information disclosure, where uninitialized struct members
   or struct padding is copied back to usermode, leaking kernel
   information such as stack or heap addresses, or secret data like
   stack cookies.

 - Control flow based on uninitialized memory can cause a variety of
   issues at runtime, including stack corruptions like buffer
   overflows, heap corruptions due to deleting stray pointers.
   Even basic logic bugs can result from control flow operating on
   uninitialized data.

As of GCC 12 this flag is now supported.
https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=a25e0b5e6ac8a77a71c229e0a7b744603365b0e9

Clang has already supported it for a few releases.
https://reviews.llvm.org/D54604
2022-06-24 12:35:36 +01:00
..
API Kernel: Add sysconf for IOV_MAX 2022-06-19 09:05:35 +02:00
Arch Kernel: Eliminate possible KASLR leak by disabling CR4.FSGSBASE 2022-06-22 07:52:35 +03:00
Bus Kernel/SysFS: Split bulky SysFSPCI file into separate files 2022-06-17 11:01:27 +02:00
Devices Kernel/Audio: Fix buffer size underflow for non-page-aligned sizes 2022-06-23 23:26:33 +01:00
FileSystem Kernel: Create /proc/pid/cmdline to expose process arguments in procfs 2022-06-19 09:05:35 +02:00
Firmware Kerenl/Firmware: Add map_ebda and map_bios methods in the original place 2022-06-17 11:01:27 +02:00
Graphics Kernel/Console: Fix gaps between background glyph color 2022-06-11 12:19:29 +01:00
Heap Kernel: Move allocate_unbacked_region_anywhere() to MemoryManager 2022-04-05 13:45:10 +02:00
Interrupts Kernel: Move IRQController and InterruptManagement to Arch directory 2022-06-02 13:14:12 +01:00
Library Kernel+AK: Split Weakable.h into userspace and kernel variants 2022-06-15 17:15:04 +02:00
Locking Kernel: Verify mutex big lock behavior 2022-04-09 15:55:20 +02:00
Memory Kernel: Decrease the amount of address space offset randomization 2022-06-21 22:38:15 +01:00
Net Kernel: Unify Kernel task names for consistency 2022-06-05 14:09:44 +01:00
Prekernel Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
Storage Kernel: Move Kernel/Arch/x86/SafeMem.h to Kernel/Arch/SafeMem.h 2022-05-03 21:53:36 +02:00
Syscalls Kernel: Add sysconf for IOV_MAX 2022-06-19 09:05:35 +02:00
Tasks Kernel: Unify Kernel task names for consistency 2022-06-05 14:09:44 +01:00
Time Kernel: Make TimeManagement::boot_time() static 2022-06-15 17:15:04 +02:00
TTY LibVT+Kernel: Separate the caret shapes and its steadiness 2022-06-22 12:12:00 +01:00
AddressSanitizer.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
AddressSanitizer.h Everywhere: Use bgianf@serenityos.org for my copyright attribution 2021-04-22 21:15:54 +02:00
Assertions.h Kernel: Do not implement VERIFY_NOT_REACHED() as VERIFY(false) 2022-05-12 13:12:37 +02:00
AtomicEdgeAction.h Kernel: Add per platform Processor.h headers 2021-10-14 01:23:08 +01:00
BootInfo.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
CMakeLists.txt Kernel: Enable -ftrivial-auto-var-init as a security mitigation 2022-06-24 12:35:36 +01:00
CMOS.cpp Kernel: Move x86 IO instructions code into the x86 specific folder 2021-10-01 12:27:20 +02:00
CMOS.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
CommandLine.cpp Kernel/Graphics: Simplify the feature level of the Graphics subsystem 2022-05-05 20:55:57 +02:00
CommandLine.h Kernel/Graphics: Simplify the feature level of the Graphics subsystem 2022-05-05 20:55:57 +02:00
Coredump.cpp Kernel: Store AddressSpace memory regions in an IntrusiveRedBlackTree 2022-04-03 21:51:58 +02:00
Coredump.h Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T> 2021-11-08 01:10:53 +01:00
Debug.h.in Kernel: Stop debug spam when using mmap on /dev/mem device 2022-04-01 19:59:45 +02:00
DoubleBuffer.cpp Kernel: Implement InterruptDisabler using generic Processor functions 2022-06-02 13:14:12 +01:00
DoubleBuffer.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
embedmap.sh Kernel: Make new kernel build process work on macOS 2021-07-15 11:04:30 +02:00
Forward.h Kernel/SysFS: Migrate components code from SysFS.cpp to the SysFS folder 2022-06-17 11:01:27 +02:00
FutexQueue.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
FutexQueue.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
GlobalProcessExposed.cpp Kernel: Move IRQController and InterruptManagement to Arch directory 2022-06-02 13:14:12 +01:00
init.cpp Kernel/SysFS: Stop cluttering the codebase with pieces of SysFS parts 2022-06-17 11:01:27 +02:00
KBuffer.h Kernel: Propagate overflow errors from Memory::page_round_up 2021-12-28 23:08:50 +01:00
KBufferBuilder.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
KBufferBuilder.h Kernel: Expose .length() of KBufferBuilder 2022-05-06 02:12:51 +04:30
KLexicalPath.cpp Everywhere: Pass AK::StringView by value 2021-11-11 01:27:46 +01:00
KLexicalPath.h Everywhere: Pass AK::StringView by value 2021-11-11 01:27:46 +01:00
kprintf.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
kstdio.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
KString.cpp Kernel: Add an error propagating KString::format(..) API :^) 2021-11-30 11:16:35 +01:00
KString.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
KSyms.cpp Kernel: Move Kernel/Arch/x86/SafeMem.h to Kernel/Arch/SafeMem.h 2022-05-03 21:53:36 +02:00
KSyms.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
MiniStdLib.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
mkmap.sh Kernel: Use the toolchain's nm in mkmap.sh 2021-12-30 18:10:51 +01:00
Multiboot.h Kernel: Only use multiboot framebuffer details if present 2022-01-06 22:34:11 +01:00
Panic.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
Panic.h Kernel: Implement __panic() for the aarch64 Kernel 2022-05-03 21:53:36 +02:00
PerformanceEventBuffer.cpp Kernel: Move Kernel/Arch/x86/SafeMem.h to Kernel/Arch/SafeMem.h 2022-05-03 21:53:36 +02:00
PerformanceEventBuffer.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
PerformanceManager.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
PhysicalAddress.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
Process.cpp Kernel: Implement InterruptDisabler using generic Processor functions 2022-06-02 13:14:12 +01:00
Process.h Kernel: Create /proc/pid/cmdline to expose process arguments in procfs 2022-06-19 09:05:35 +02:00
ProcessExposed.cpp Kernel: Add /proc/{pid}/children to ProcFS 2022-05-06 02:12:51 +04:30
ProcessExposed.h Kernel: Create /proc/pid/cmdline to expose process arguments in procfs 2022-06-19 09:05:35 +02:00
ProcessGroup.cpp Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T> 2021-11-08 01:10:53 +01:00
ProcessGroup.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
ProcessProcFSTraits.cpp Kernel: Create /proc/pid/cmdline to expose process arguments in procfs 2022-06-19 09:05:35 +02:00
ProcessSpecificExposed.cpp Kernel: Create /proc/pid/cmdline to expose process arguments in procfs 2022-06-19 09:05:35 +02:00
Random.cpp Kernel: Make KernelRng not inherit from Lockable 2021-12-26 21:22:59 +01:00
Random.h Kernel: Make PhysicalRegion.cpp compile on aarch64 2022-04-02 19:34:20 -07:00
RTC.cpp Everywhere: Fix many spelling errors 2022-01-07 10:56:59 +01:00
RTC.h Kernel: Ensure we read valid values from the RTC CMOS registers 2021-08-04 19:53:04 +02:00
SanCov.cpp Kernel: Add some implied auto qualifiers 2021-12-30 14:32:17 +01:00
Scheduler.cpp Kernel: Unify Kernel task names for consistency 2022-06-05 14:09:44 +01:00
Scheduler.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
Sections.h Kernel: Use the whole kernel PD range when randomizing the KASLR offset 2022-03-23 19:49:49 +02:00
StdLib.cpp Kernel: Move Kernel/Arch/x86/SafeMem.h to Kernel/Arch/SafeMem.h 2022-05-03 21:53:36 +02:00
StdLib.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
Syscall.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
Thread.cpp Kernel: Implement InterruptDisabler using generic Processor functions 2022-06-02 13:14:12 +01:00
Thread.h Kernel: Increase the default userspace stack size to 4 MiB 2022-04-12 16:48:15 +02:00
ThreadBlockers.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
ThreadTracer.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
ThreadTracer.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
TimerQueue.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
TimerQueue.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
UBSanitizer.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
UnixTypes.h Kernel: Add support for SA_SIGINFO 2022-03-04 20:07:05 +01:00
UserOrKernelBuffer.cpp Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T> 2021-11-08 01:10:53 +01:00
UserOrKernelBuffer.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
VirtualAddress.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
WaitQueue.cpp Kernel: Don't register thread as custom data for WaitQueueBlocker 2021-08-24 01:57:11 +02:00
WaitQueue.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
WorkQueue.cpp Kernel: Unify Kernel task names for consistency 2022-06-05 14:09:44 +01:00
WorkQueue.h Kernel: Take WorkQueue item as reference instead of pointer in do_queue 2022-04-20 19:47:18 +02:00