From: Steve French <stfrench@microsoft.com>
Date: Fri, 15 Jun 2018 03:30:56 +0000 (-0500)
Subject: smb3: fix corrupt path in subdirs on smb311 with posix
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d819d298c7258849d56eb400be436aff3ba2aae2;p=linux.git

smb3: fix corrupt path in subdirs on smb311 with posix

Signed-off-by: Steve French <stfrench@microsoft.com>
---

diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index 0de87ca33e2e2..3ff7cec2da811 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -454,7 +454,8 @@ cifs_convert_path_to_utf16(const char *from, struct cifs_sb_info *cifs_sb)
 #ifdef CONFIG_CIFS_SMB311
 	/* SMB311 POSIX extensions paths do not include leading slash */
 	else if (cifs_sb_master_tlink(cifs_sb) &&
-		 cifs_sb_master_tcon(cifs_sb)->posix_extensions) {
+		 cifs_sb_master_tcon(cifs_sb)->posix_extensions &&
+		 (from[0] == '/')) {
 		start_of_path = from + 1;
 	}
 #endif /* 311 */