| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.7 147/166] smb3: fix access denied on change notify request to some servers | Date | Tue, 14 Jul 2020 20:45:12 +0200 |
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From: Steve French <stfrench@microsoft.com>
commit 4ef9b4f1a76ea2370fbfe20e80fef141ab92b65e upstream.
read permission, not just read attributes permission, is required on the directory.
See MS-SMB2 (protocol specification) section 3.3.5.19.
Signed-off-by: Steve French <stfrench@microsoft.com> CC: Stable <stable@vger.kernel.org> # v5.6+ Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- fs/cifs/smb2ops.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -2119,7 +2119,7 @@ smb3_notify(const unsigned int xid, stru tcon = cifs_sb_master_tcon(cifs_sb); oparms.tcon = tcon; - oparms.desired_access = FILE_READ_ATTRIBUTES; + oparms.desired_access = FILE_READ_ATTRIBUTES | FILE_READ_DATA; oparms.disposition = FILE_OPEN; oparms.create_options = cifs_create_options(cifs_sb, 0); oparms.fid = &fid;
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