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cifs: Fix separator when building path from dentry

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commit c988de29ca upstream.

Make sure to use the CIFS_DIR_SEP(cifs_sb) as path separator for
prefixpath too. Fixes a bug with smb1 UNIX extensions.

Fixes: a6b5058faf ("fs/cifs: make share unaccessible at root level mountable")
Signed-off-by: Paulo Alcantara <palcantara@suse.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
CC: Stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Paulo Alcantara 2018-11-15 15:20:52 +01:00 committed by Greg Kroah-Hartman
parent bd5d1c273c
commit 99c694081b
1 changed files with 1 additions and 1 deletions
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2
fs/cifs/dir.c
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@ -174,7 +174,7 @@ build_path_from_dentry_optional_prefix(struct dentry *direntry, bool prefix)
cifs_dbg(FYI, "using cifs_sb prepath <%s>\n", cifs_sb->prepath);
memcpy(full_path+dfsplen+1, cifs_sb->prepath, pplen-1);
full_path[dfsplen] = '\\';
full_path[dfsplen] = dirsep;
for (i = 0; i < pplen-1; i++)
if (full_path[dfsplen+1+i] == '/')
full_path[dfsplen+1+i] = CIFS_DIR_SEP(cifs_sb);