4.20-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pavel Shilovsky <pshilov@xxxxxxxxxxxxx>
commit 33fa5c8b8a7dbe6353a56eaa654b790348890d42 upstream.
Currently we reset the number of total credits granted by the server
to 1 if the server didn't grant us anything int the response. This
violates the SMB3 protocol - we need to trust the server and use
the credit values from the response. Fix this by removing the
corresponding code.
Signed-off-by: Pavel Shilovsky <pshilov@xxxxxxxxxxxxx>
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
CC: Stable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/cifs/transport.c | 2 --
1 file changed, 2 deletions(-)
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -892,8 +892,6 @@ compound_send_recv(const unsigned int xi
for (i = 0; i < num_rqst; i++)
if (midQ[i]->resp_buf)
credits += ses->server->ops->get_credits(midQ[i]);
- if (!credits)
- credits = 1;
for (i = 0; i < num_rqst; i++) {
if (rc < 0)
