5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Namjae Jeon <linkinjeon@xxxxxxxxxx>
[ Upstream commit be0f89d4419dc5413a1cf06db3671c9949be0d52 ]
set_smb2_rsp_status() after __process_request() sets the wrong error
status. This patch resets all iov vectors and sets the error status
on clean one.
Fixes: e2b76ab8b5c9 ("ksmbd: add support for read compound")
Signed-off-by: Namjae Jeon <linkinjeon@xxxxxxxxxx>
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/ksmbd/smb2pdu.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
--- a/fs/ksmbd/smb2pdu.c
+++ b/fs/ksmbd/smb2pdu.c
@@ -231,11 +231,12 @@ void set_smb2_rsp_status(struct ksmbd_wo
{
struct smb2_hdr *rsp_hdr;
- if (work->next_smb2_rcv_hdr_off)
- rsp_hdr = ksmbd_resp_buf_next(work);
- else
- rsp_hdr = smb2_get_msg(work->response_buf);
+ rsp_hdr = smb2_get_msg(work->response_buf);
rsp_hdr->Status = err;
+
+ work->iov_idx = 0;
+ work->iov_cnt = 0;
+ work->next_smb2_rcv_hdr_off = 0;
smb2_set_err_rsp(work);
}
