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Fix OpenProcessToken pseudo-handle regression

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This commit is contained in:
Luke Street 2025-10-05 18:16:15 -06:00
parent 0d76e541c1
commit ff04eb9f41
6 changed files with 31 additions and 25 deletions
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8
dll/advapi32/processthreadsapi.cpp
View File

@ -5,6 +5,7 @@
#include "errors.h"
#include "handles.h"
#include "internal.h"
#include "kernel32/internal.h"
#include "processes.h"
namespace advapi32 {
@ -16,7 +17,12 @@ BOOL WIN_FUNC OpenProcessToken(HANDLE ProcessHandle, DWORD DesiredAccess, PHANDL
wibo::lastError = ERROR_INVALID_PARAMETER;
return FALSE;
}
auto obj = wibo::handles().getAs<ProcessObject>(ProcessHandle);
Pin<ProcessObject> obj;
if (kernel32::isPseudoCurrentProcessHandle(ProcessHandle)) {
obj = make_pin<ProcessObject>(getpid(), -1);
} else {
obj = wibo::handles().getAs<ProcessObject>(ProcessHandle);
}
if (!obj) {
wibo::lastError = ERROR_INVALID_HANDLE;
return FALSE;

7
dll/kernel32/handleapi.cpp
View File

@ -23,7 +23,7 @@ BOOL WIN_FUNC DuplicateHandle(HANDLE hSourceProcessHandle, HANDLE hSourceHandle,
}
auto validateProcessHandle = [&](HANDLE handle) -> bool {
if (reinterpret_cast<uintptr_t>(handle) == kPseudoCurrentProcessHandleValue) {
if (isPseudoCurrentProcessHandle(handle)) {
return true;
}
auto proc = wibo::handles().getAs<ProcessObject>(handle);
@ -37,15 +37,14 @@ BOOL WIN_FUNC DuplicateHandle(HANDLE hSourceProcessHandle, HANDLE hSourceHandle,
return FALSE;
}
uintptr_t sourceHandleRaw = reinterpret_cast<uintptr_t>(hSourceHandle);
if (sourceHandleRaw == kPseudoCurrentProcessHandleValue) {
if (isPseudoCurrentProcessHandle(hSourceHandle)) {
auto po = make_pin<ProcessObject>(getpid(), -1);
auto handle = wibo::handles().alloc(std::move(po), 0, 0);
DEBUG_LOG("DuplicateHandle: created process handle for current process -> %p\n", handle);
*lpTargetHandle = handle;
wibo::lastError = ERROR_SUCCESS;
return TRUE;
} else if (sourceHandleRaw == kPseudoCurrentThreadHandleValue) {
} else if (isPseudoCurrentThreadHandle(hSourceHandle)) {
auto th = make_pin<ThreadObject>(pthread_self());
auto handle = wibo::handles().alloc(std::move(th), 0, 0);
DEBUG_LOG("DuplicateHandle: created thread handle for current thread -> %p\n", handle);

10
dll/kernel32/internal.h
View File

@ -166,6 +166,16 @@ struct HeapObject : public ObjectBase {
inline constexpr uintptr_t kPseudoCurrentProcessHandleValue = static_cast<uintptr_t>(-1);
inline constexpr uintptr_t kPseudoCurrentThreadHandleValue = static_cast<uintptr_t>(-2);
inline bool isPseudoCurrentProcessHandle(HANDLE h) {
uintptr_t rawHandle = reinterpret_cast<uintptr_t>(h);
return rawHandle == kPseudoCurrentProcessHandleValue;
}
inline bool isPseudoCurrentThreadHandle(HANDLE h) {
uintptr_t rawHandle = reinterpret_cast<uintptr_t>(h);
return rawHandle == kPseudoCurrentThreadHandleValue;
}
void tryMarkExecutable(void *mem);
void setLastErrorFromErrno();

24
dll/kernel32/processthreadsapi.cpp
View File

@ -175,11 +175,6 @@ void *threadTrampoline(void *param) {
return nullptr;
}
inline bool isPseudoCurrentThreadHandle(HANDLE h) {
uintptr_t rawHandle = reinterpret_cast<uintptr_t>(h);
return rawHandle == kernel32::kPseudoCurrentThreadHandleValue;
}
} // namespace
namespace kernel32 {
@ -237,9 +232,7 @@ BOOL WIN_FUNC GetProcessAffinityMask(HANDLE hProcess, PDWORD_PTR lpProcessAffini
return FALSE;
}
uintptr_t rawHandle = reinterpret_cast<uintptr_t>(hProcess);
bool isPseudoHandle = rawHandle == 0 || rawHandle == kPseudoCurrentProcessHandleValue;
if (!isPseudoHandle) {
if (!isPseudoCurrentProcessHandle(hProcess)) {
auto obj = wibo::handles().getAs<ProcessObject>(hProcess);
if (!obj) {
wibo::lastError = ERROR_INVALID_HANDLE;
@ -271,9 +264,7 @@ BOOL WIN_FUNC SetProcessAffinityMask(HANDLE hProcess, DWORD_PTR dwProcessAffinit
return FALSE;
}
uintptr_t rawHandle = reinterpret_cast<uintptr_t>(hProcess);
bool isPseudoHandle = rawHandle == 0 || rawHandle == kPseudoCurrentProcessHandleValue;
if (!isPseudoHandle) {
if (!isPseudoCurrentProcessHandle(hProcess)) {
auto obj = wibo::handles().getAs<ProcessObject>(hProcess);
if (!obj) {
wibo::lastError = ERROR_INVALID_HANDLE;
@ -332,7 +323,7 @@ void WIN_FUNC ExitProcess(UINT uExitCode) {
BOOL WIN_FUNC TerminateProcess(HANDLE hProcess, UINT uExitCode) {
HOST_CONTEXT_GUARD();
DEBUG_LOG("TerminateProcess(%p, %u)\n", hProcess, uExitCode);
if (hProcess == reinterpret_cast<HANDLE>(static_cast<uintptr_t>(-1))) {
if (isPseudoCurrentProcessHandle(hProcess)) {
exit(static_cast<int>(uExitCode));
}
auto process = wibo::handles().getAs<ProcessObject>(hProcess);
@ -372,6 +363,11 @@ BOOL WIN_FUNC GetExitCodeProcess(HANDLE hProcess, LPDWORD lpExitCode) {
wibo::lastError = ERROR_INVALID_PARAMETER;
return FALSE;
}
if (isPseudoCurrentProcessHandle(hProcess)) {
*lpExitCode = STILL_ACTIVE;
wibo::lastError = ERROR_SUCCESS;
return TRUE;
}
auto process = wibo::handles().getAs<ProcessObject>(hProcess);
if (!process) {
wibo::lastError = ERROR_INVALID_HANDLE;
@ -599,9 +595,7 @@ BOOL WIN_FUNC GetThreadTimes(HANDLE hThread, FILETIME *lpCreationTime, FILETIME
return FALSE;
}
bool isPseudoCurrentThread = reinterpret_cast<uintptr_t>(hThread) == kernel32::kPseudoCurrentThreadHandleValue ||
hThread == nullptr || hThread == reinterpret_cast<HANDLE>(static_cast<uintptr_t>(-1));
if (!isPseudoCurrentThread) {
if (!isPseudoCurrentThreadHandle(hThread)) {
DEBUG_LOG("GetThreadTimes: unsupported handle %p\n", hThread);
wibo::lastError = ERROR_INVALID_HANDLE;
return FALSE;

4
dll/kernel32/wow64apiset.cpp
View File

@ -34,9 +34,7 @@ BOOL WIN_FUNC IsWow64Process(HANDLE hProcess, PBOOL Wow64Process) {
return FALSE;
}
uintptr_t rawHandle = reinterpret_cast<uintptr_t>(hProcess);
bool isPseudoHandle = rawHandle == kPseudoCurrentProcessHandleValue;
if (!isPseudoHandle) {
if (!isPseudoCurrentProcessHandle(hProcess)) {
if (!hProcess) {
wibo::lastError = ERROR_INVALID_HANDLE;
return FALSE;

3
dll/ntdll.cpp
View File

@ -78,8 +78,7 @@ constexpr ULONG kOsPlatformId = 2; // VER_PLATFORM_WIN32_NT
constexpr BYTE kProductTypeWorkstation = 1; // VER_NT_WORKSTATION
bool resolveProcessDetails(HANDLE processHandle, ProcessHandleDetails &details) {
uintptr_t rawHandle = reinterpret_cast<uintptr_t>(processHandle);
if (rawHandle == static_cast<uintptr_t>(-1)) {
if (kernel32::isPseudoCurrentProcessHandle(processHandle)) {
details.pid = getpid();
details.exitCode = STILL_ACTIVE;
details.peb = wibo::processPeb;