Module: wine Branch: master Commit: 5739db59d4c9c379776257d99a3e447f078e43bf URL: https://source.winehq.org/git/wine.git/?a=commit;h=5739db59d4c9c379776257d99...
Author: Zhiyi Zhang zzhang@codeweavers.com Date: Tue Jun 28 11:57:28 2022 +0800
atl: Avoid NULL pointer reference in AtlComModuleGetClassObject().
Signed-off-by: Zhiyi Zhang zzhang@codeweavers.com
---
configure | 1 + configure.ac | 1 + dlls/atl/atl.c | 4 +-- dlls/atl100/tests/atl.c | 27 ++++++++++++++++++ dlls/atl110/tests/Makefile.in | 6 ++++ dlls/atl110/tests/atl.c | 65 +++++++++++++++++++++++++++++++++++++++++++ 6 files changed, 102 insertions(+), 2 deletions(-)
diff --git a/configure b/configure index e563a2f9502..d60418ff60a 100755 --- a/configure +++ b/configure @@ -21227,6 +21227,7 @@ wine_fn_config_makefile dlls/atl/tests enable_tests wine_fn_config_makefile dlls/atl100 enable_atl100 wine_fn_config_makefile dlls/atl100/tests enable_tests wine_fn_config_makefile dlls/atl110 enable_atl110 +wine_fn_config_makefile dlls/atl110/tests enable_tests wine_fn_config_makefile dlls/atl80 enable_atl80 wine_fn_config_makefile dlls/atl80/tests enable_tests wine_fn_config_makefile dlls/atl90 enable_atl90 diff --git a/configure.ac b/configure.ac index d5791bab7b1..5ea0d9120f0 100644 --- a/configure.ac +++ b/configure.ac @@ -2394,6 +2394,7 @@ WINE_CONFIG_MAKEFILE(dlls/atl/tests) WINE_CONFIG_MAKEFILE(dlls/atl100) WINE_CONFIG_MAKEFILE(dlls/atl100/tests) WINE_CONFIG_MAKEFILE(dlls/atl110) +WINE_CONFIG_MAKEFILE(dlls/atl110/tests) WINE_CONFIG_MAKEFILE(dlls/atl80) WINE_CONFIG_MAKEFILE(dlls/atl80/tests) WINE_CONFIG_MAKEFILE(dlls/atl90) diff --git a/dlls/atl/atl.c b/dlls/atl/atl.c index 87a24e33ed7..d501e7a6d76 100644 --- a/dlls/atl/atl.c +++ b/dlls/atl/atl.c @@ -482,7 +482,7 @@ HRESULT WINAPI AtlComModuleGetClassObject(_ATL_COM_MODULE *pm, REFCLSID rclsid, return E_INVALIDARG;
for(iter = pm->m_ppAutoObjMapFirst; iter < pm->m_ppAutoObjMapLast; iter++) { - if(IsEqualCLSID((*iter)->pclsid, rclsid) && (*iter)->pfnGetClassObject) { + if(*iter && IsEqualCLSID((*iter)->pclsid, rclsid) && (*iter)->pfnGetClassObject) { if(!(*iter)->pCF) hres = (*iter)->pfnGetClassObject((*iter)->pfnCreateInstance, &IID_IUnknown, (void**)&(*iter)->pCF); if((*iter)->pCF) @@ -507,7 +507,7 @@ HRESULT WINAPI AtlComModuleGetClassObject(_ATL_COM_MODULE *pm, REFCLSID rclsid, return E_INVALIDARG;
for(iter = pm->m_ppAutoObjMapFirst; iter < pm->m_ppAutoObjMapLast; iter++) { - if(IsEqualCLSID((*iter)->pclsid, rclsid) && (*iter)->pfnGetClassObject) { + if(*iter && IsEqualCLSID((*iter)->pclsid, rclsid) && (*iter)->pfnGetClassObject) { if(!(*iter)->pCache->pCF) hres = (*iter)->pfnGetClassObject((*iter)->pfnCreateInstance, &IID_IUnknown, (void**)&(*iter)->pCache->pCF); if((*iter)->pCache->pCF) diff --git a/dlls/atl100/tests/atl.c b/dlls/atl100/tests/atl.c index e161878f8ea..e002af0d24c 100644 --- a/dlls/atl100/tests/atl.c +++ b/dlls/atl100/tests/atl.c @@ -1062,6 +1062,32 @@ static void test_AtlAxCreateControl(void) DestroyWindow(hwnd); }
+static void test_AtlComModuleGetClassObject(void) +{ + _ATL_OBJMAP_ENTRY *null_entry = NULL; + _ATL_COM_MODULE module; + HRESULT hr; + void *ret; + + /* Test NULL module */ + hr = AtlComModuleGetClassObject(NULL, &GUID_NULL, &IID_NULL, &ret); + ok(hr == E_INVALIDARG, "Unexpected hr %#lx.\n", hr); + + /* Test NULL m_ppAutoObjMapFirst and m_ppAutoObjMapLast */ + module.cbSize = sizeof(module); + module.m_ppAutoObjMapFirst = NULL; + module.m_ppAutoObjMapLast = NULL; + hr = AtlComModuleGetClassObject(&module, &GUID_NULL, &IID_NULL, &ret); + ok(hr == CLASS_E_CLASSNOTAVAILABLE, "Unexpected hr %#lx.\n", hr); + + /* Test m_ppAutoObjMapFirst and m_ppAutoObjMapLast both pointing to a NULL entry */ + module.cbSize = sizeof(module); + module.m_ppAutoObjMapFirst = &null_entry; + module.m_ppAutoObjMapLast = &null_entry; + hr = AtlComModuleGetClassObject(&module, &GUID_NULL, &IID_NULL, &ret); + ok(hr == CLASS_E_CLASSNOTAVAILABLE, "Unexpected hr %#lx.\n", hr); +} + START_TEST(atl) { if (!register_class()) @@ -1077,6 +1103,7 @@ START_TEST(atl) test_ax_win(); test_AtlAxAttachControl(); test_AtlAxCreateControl(); + test_AtlComModuleGetClassObject();
CoUninitialize(); } diff --git a/dlls/atl110/tests/Makefile.in b/dlls/atl110/tests/Makefile.in new file mode 100644 index 00000000000..6374117e1be --- /dev/null +++ b/dlls/atl110/tests/Makefile.in @@ -0,0 +1,6 @@ +TESTDLL = atl110.dll +IMPORTS = uuid ole32 atl110 +EXTRADEFS = -D_ATL_VER=_ATL_VER_110 + +C_SRCS = \ + atl.c diff --git a/dlls/atl110/tests/atl.c b/dlls/atl110/tests/atl.c new file mode 100644 index 00000000000..cb8f667596b --- /dev/null +++ b/dlls/atl110/tests/atl.c @@ -0,0 +1,65 @@ +/* + * Copyright 2022 Zhiyi Zhang for CodeWeavers + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#include <stdarg.h> +#include <stdio.h> + +#define COBJMACROS +#define CONST_VTABLE + +#include <windef.h> +#include <winbase.h> +#include <winuser.h> +#include <atlbase.h> + +#include <wine/test.h> + +static void test_AtlComModuleGetClassObject(void) +{ + _ATL_OBJMAP_ENTRY_EX *null_entry = NULL; + _ATL_COM_MODULE module; + HRESULT hr; + void *ret; + + /* Test NULL module */ + hr = AtlComModuleGetClassObject(NULL, &GUID_NULL, &IID_NULL, &ret); + ok(hr == E_INVALIDARG, "Unexpected hr %#lx.\n", hr); + + /* Test NULL m_ppAutoObjMapFirst and m_ppAutoObjMapLast */ + module.cbSize = sizeof(module); + module.m_ppAutoObjMapFirst = NULL; + module.m_ppAutoObjMapLast = NULL; + hr = AtlComModuleGetClassObject(&module, &GUID_NULL, &IID_NULL, &ret); + ok(hr == CLASS_E_CLASSNOTAVAILABLE, "Unexpected hr %#lx.\n", hr); + + /* Test m_ppAutoObjMapFirst and m_ppAutoObjMapLast both pointing to a NULL entry */ + module.cbSize = sizeof(module); + module.m_ppAutoObjMapFirst = &null_entry; + module.m_ppAutoObjMapLast = &null_entry; + hr = AtlComModuleGetClassObject(&module, &GUID_NULL, &IID_NULL, &ret); + ok(hr == CLASS_E_CLASSNOTAVAILABLE, "Unexpected hr %#lx.\n", hr); +} + +START_TEST(atl) +{ + CoInitialize(NULL); + + test_AtlComModuleGetClassObject(); + + CoUninitialize(); +}