CIFS: Fix maximum SMB2 header size
authorPavel Shilovsky <pshilov@microsoft.com>
Thu, 24 Aug 2017 22:16:40 +0000 (15:16 -0700)
committerSteve French <smfrench@gmail.com>
Wed, 30 Aug 2017 19:42:30 +0000 (14:42 -0500)
commit9e37b1784f2be9397a903307574ee565bbadfd75
treed485d557ef21b1d5dc0d8f33dc920a8252934b97
parent36fde05f3fb51edea879636db590d70e11f16c82
CIFS: Fix maximum SMB2 header size

Currently the maximum size of SMB2/3 header is set incorrectly which
leads to hanging of directory listing operations on encrypted SMB3
connections. Fix this by setting the maximum size to 170 bytes that
is calculated as RFC1002 length field size (4) + transform header
size (52) + SMB2 header size (64) + create response size (56).

Cc: <stable@vger.kernel.org>
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Acked-by: Sachin Prabhu <sprabhu@redhat.com>
fs/cifs/smb2pdu.h