[reactos] 03/06: [KERNEL32] FindFirstFileExW: fix syscall buffer alignment

[Victor Perevertkin]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=655ddfa8e2ffb3de5c2a8…

commit 655ddfa8e2ffb3de5c2a8e2ad09606209c2e7a66
Author:     Victor Perevertkin <victor.perevertkin(a)reactos.org>
AuthorDate: Mon Sep 13 21:13:14 2021 +0300
Commit:     Victor Perevertkin <victor.perevertkin(a)reactos.org>
CommitDate: Tue Sep 14 17:58:22 2021 +0300

    [KERNEL32] FindFirstFileExW: fix syscall buffer alignment
    
    NtQueryDirectoryFile required the FileInformation buffer to be
    ULONG-aligned. Declare the aligned buffer explicitly.
---
 dll/win32/kernel32/client/file/find.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/dll/win32/kernel32/client/file/find.c
b/dll/win32/kernel32/client/file/find.c
index b5fe7713e53..0fa21ae34be 100644
--- a/dll/win32/kernel32/client/file/find.c
+++ b/dll/win32/kernel32/client/file/find.c
@@ -687,9 +687,10 @@ FindFirstFileExW(IN LPCWSTR lpFileName,
         /*
          * May represent many FILE_BOTH_DIR_INFORMATION
          * or many FILE_FULL_DIR_INFORMATION structures.
+         * NOTE: NtQueryDirectoryFile requires the buffer to be ULONG-aligned
          */
-        BYTE DirectoryInfo[FIND_DATA_SIZE];
-        DIR_INFORMATION DirInfo = {&DirectoryInfo};
+        DECLSPEC_ALIGN(4) BYTE DirectoryInfo[FIND_DATA_SIZE];
+        DIR_INFORMATION DirInfo = { .DirInfo = &DirectoryInfo };
 
         /* The search filter is always unused */
         if (lpSearchFilter)