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116 lines
3.4 KiB
Diff
116 lines
3.4 KiB
Diff
From 56e15c62829a85dead5cd681ada5a69e9374d5e6 Mon Sep 17 00:00:00 2001
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From: Dmitry Timoshkov <dmitry@baikal.ru>
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Date: Fri, 18 Nov 2016 22:31:29 +0800
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Subject: uxtheme: Protect CloseThemeData() from invalid input.
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Testcase by Michael Müller <michael@fds-team.de>.
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---
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dlls/uxtheme/msstyles.c | 22 ++++++++++++++++++++++
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dlls/uxtheme/msstyles.h | 3 ++-
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dlls/uxtheme/tests/system.c | 4 ++++
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3 files changed, 28 insertions(+), 1 deletion(-)
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diff --git a/dlls/uxtheme/msstyles.c b/dlls/uxtheme/msstyles.c
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index e62b95d..1cca4fc 100644
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--- a/dlls/uxtheme/msstyles.c
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+++ b/dlls/uxtheme/msstyles.c
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@@ -35,6 +35,7 @@
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#include "msstyles.h"
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#include "wine/unicode.h"
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+#include "wine/exception.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(uxtheme);
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@@ -56,6 +57,8 @@ static const WCHAR szThemesIniResource[] = {
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't','h','e','m','e','s','_','i','n','i','\0'
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};
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+#define THEME_CLASS_SIGNATURE (('T' << 24) | ('H' << 16) | ('E' << 8) | 'M')
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+
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static PTHEME_FILE tfActiveTheme;
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/***********************************************************************/
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@@ -219,6 +222,7 @@ void MSSTYLES_CloseThemeFile(PTHEME_FILE tf)
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pcls->partstate = ps->next;
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HeapFree(GetProcessHeap(), 0, ps);
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}
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+ pcls->signature = 0;
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HeapFree(GetProcessHeap(), 0, pcls);
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}
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}
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@@ -450,6 +454,7 @@ static PTHEME_CLASS MSSTYLES_AddClass(PTHEME_FILE tf, LPCWSTR pszAppName, LPCWST
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if(cur) return cur;
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cur = HeapAlloc(GetProcessHeap(), 0, sizeof(THEME_CLASS));
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+ cur->signature = THEME_CLASS_SIGNATURE;
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cur->hTheme = tf->hTheme;
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lstrcpyW(cur->szAppName, pszAppName);
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lstrcpyW(cur->szClassName, pszClassName);
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@@ -1043,6 +1048,23 @@ PTHEME_CLASS MSSTYLES_OpenThemeClass(LPCWSTR pszAppName, LPCWSTR pszClassList)
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*/
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HRESULT MSSTYLES_CloseThemeClass(PTHEME_CLASS tc)
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{
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+ __TRY
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+ {
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+ if (tc->signature != THEME_CLASS_SIGNATURE)
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+ tc = NULL;
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+ }
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+ __EXCEPT_PAGE_FAULT
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+ {
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+ tc = NULL;
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+ }
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+ __ENDTRY
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+
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+ if (!tc)
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+ {
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+ WARN("Invalid theme class handle\n");
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+ return E_HANDLE;
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+ }
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+
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MSSTYLES_CloseThemeFile (tc->tf);
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return S_OK;
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}
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diff --git a/dlls/uxtheme/msstyles.h b/dlls/uxtheme/msstyles.h
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index 0b7e1ab..ba10ac8 100644
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--- a/dlls/uxtheme/msstyles.h
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+++ b/dlls/uxtheme/msstyles.h
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@@ -49,6 +49,7 @@ typedef struct _THEME_PARTSTATE {
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struct _THEME_FILE;
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typedef struct _THEME_CLASS {
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+ DWORD signature;
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HMODULE hTheme;
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struct _THEME_FILE* tf;
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WCHAR szAppName[MAX_THEME_APP_NAME];
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@@ -63,7 +64,7 @@ typedef struct _THEME_IMAGE {
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WCHAR name[MAX_PATH];
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HBITMAP image;
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BOOL hasAlpha;
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-
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+
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struct _THEME_IMAGE *next;
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} THEME_IMAGE, *PTHEME_IMAGE;
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diff --git a/dlls/uxtheme/tests/system.c b/dlls/uxtheme/tests/system.c
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index d40679d..dba6cc8 100644
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--- a/dlls/uxtheme/tests/system.c
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+++ b/dlls/uxtheme/tests/system.c
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@@ -181,6 +181,10 @@ static void test_OpenThemeData(void)
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"Expected GLE() to be E_PROP_ID_UNSUPPORTED, got 0x%08x\n",
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GetLastError());
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+ /* Close invalid handle */
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+ hRes = CloseThemeData((HTHEME)0xdeadbeef);
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+ ok( hRes == E_HANDLE, "Expected E_HANDLE, got 0x%08x\n", hRes);
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+
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if (!bThemeActive)
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{
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SetLastError(0xdeadbeef);
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--
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2.9.0
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