https://git.reactos.org/?p=reactos.git;a=commitdiff;h=be92be2e37dba65306077bee26fa7ef92edaa6b6
commit be92be2e37dba65306077bee26fa7ef92edaa6b6 Author: Thomas Faber <[email protected]> AuthorDate: Sun Dec 29 16:14:17 2019 +0100 Commit: Thomas Faber <[email protected]> CommitDate: Sun Dec 29 20:08:30 2019 +0100 [WIN32K:NTUSER] Add missing probe in NtUserGetClassName. --- win32ss/user/ntuser/class.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/win32ss/user/ntuser/class.c b/win32ss/user/ntuser/class.c index 83fe9009b34..d669340baf7 100644 --- a/win32ss/user/ntuser/class.c +++ b/win32ss/user/ntuser/class.c @@ -2815,6 +2815,12 @@ NtUserGetClassName (IN HWND hWnd, { ProbeForWriteUnicodeString(ClassName); CapturedClassName = *ClassName; + if (CapturedClassName.Length != 0) + { + ProbeForRead(CapturedClassName.Buffer, + CapturedClassName.Length, + sizeof(WCHAR)); + } /* Get the class name */ Ret = UserGetClassName(Window->pcls,
