linux-kernel - [PATCH] cifs: fix FILE_BOTH_DIRECTORY

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Message-Id: <20220324072651.3418236-1-liyupeng@zbhlos.com>
Date:   Thu, 24 Mar 2022 15:26:51 +0800
From:   Yupeng Li <liyupeng@...los.com>
To:     sfrench@...ba.org, linux-cifs@...r.kernel.org,
        samba-technical@...ts.samba.org, linux-kernel@...r.kernel.org
Cc:     Eugene Korenevsky <ekorenevsky@...ralinux.ru>,
        Steve French <stfrench@...rosoft.com>,
        Yupeng Li <liyupeng@...los.com>
Subject: [PATCH] cifs: fix FILE_BOTH_DIRECTORY_INFO definition

From: Eugene Korenevsky <ekorenevsky@...ralinux.ru>

commit 9bbf8662a27b56358366027d1a77c0676f85b222 upstream.

The size of FILE_BOTH_DIRECTORY_INFO.ShortName must be 24 bytes, not 12
(see MS-FSCC documentation).

Signed-off-by: Eugene Korenevsky <ekorenevsky@...ralinux.ru>
Signed-off-by: Steve French <stfrench@...rosoft.com>
Signed-off-by: Yupeng Li <liyupeng@...los.com>
---
 fs/cifs/cifspdu.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index 1ce733f3582f..504a20250f73 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -2588,7 +2588,7 @@ typedef struct {
 	__le32 EaSize; /* length of the xattrs */
 	__u8   ShortNameLength;
 	__u8   Reserved;
-	__u8   ShortName[12];
+	__u8   ShortName[24];
 	char FileName[1];
 } __attribute__((packed)) FILE_BOTH_DIRECTORY_INFO; /* level 0x104 FFrsp data */
 
-- 
2.34.1