diff options
| author | Hyunchul Lee <hyc.lee@gmail.com> | 2022-05-20 08:35:47 +0300 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2022-05-21 23:01:43 +0300 |
| commit | 376b9133826865568167b4091ef92a68c4622b87 (patch) | |
| tree | e73600c8088b056ae689bbd7c2eacd419dd02aec | |
| parent | 5366afc4065075a4456941fbd51c33604d631ee5 (diff) | |
| download | linux-376b9133826865568167b4091ef92a68c4622b87.tar.xz | |
ksmbd: fix outstanding credits related bugs
outstanding credits must be initialized to 0,
because it means the sum of credits consumed by
in-flight requests.
And outstanding credits must be compared with
total credits in smb2_validate_credit_charge(),
because total credits are the sum of credits
granted by ksmbd.
This patch fix the following error,
while frametest with Windows clients:
Limits exceeding the maximum allowable outstanding requests,
given : 128, pending : 8065
Fixes: b589f5db6d4a ("ksmbd: limits exceeding the maximum allowable outstanding requests")
Cc: stable@vger.kernel.org
Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Reported-by: Yufan Chen <wiz.chen@gmail.com>
Tested-by: Yufan Chen <wiz.chen@gmail.com>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
| -rw-r--r-- | fs/ksmbd/connection.c | 2 | ||||
| -rw-r--r-- | fs/ksmbd/smb2misc.c | 2 | ||||
| -rw-r--r-- | fs/ksmbd/smb_common.c | 4 |
3 files changed, 5 insertions, 3 deletions
diff --git a/fs/ksmbd/connection.c b/fs/ksmbd/connection.c index 7db87771884a..e8f476c5f189 100644 --- a/fs/ksmbd/connection.c +++ b/fs/ksmbd/connection.c @@ -62,7 +62,7 @@ struct ksmbd_conn *ksmbd_conn_alloc(void) atomic_set(&conn->req_running, 0); atomic_set(&conn->r_count, 0); conn->total_credits = 1; - conn->outstanding_credits = 1; + conn->outstanding_credits = 0; init_waitqueue_head(&conn->req_running_q); INIT_LIST_HEAD(&conn->conns_list); diff --git a/fs/ksmbd/smb2misc.c b/fs/ksmbd/smb2misc.c index 4a9460153b59..f8f456377a51 100644 --- a/fs/ksmbd/smb2misc.c +++ b/fs/ksmbd/smb2misc.c @@ -338,7 +338,7 @@ static int smb2_validate_credit_charge(struct ksmbd_conn *conn, ret = 1; } - if ((u64)conn->outstanding_credits + credit_charge > conn->vals->max_credits) { + if ((u64)conn->outstanding_credits + credit_charge > conn->total_credits) { ksmbd_debug(SMB, "Limits exceeding the maximum allowable outstanding requests, given : %u, pending : %u\n", credit_charge, conn->outstanding_credits); ret = 1; diff --git a/fs/ksmbd/smb_common.c b/fs/ksmbd/smb_common.c index 9a7e211dbf4f..7f8ab14fb8ec 100644 --- a/fs/ksmbd/smb_common.c +++ b/fs/ksmbd/smb_common.c @@ -140,8 +140,10 @@ int ksmbd_verify_smb_message(struct ksmbd_work *work) hdr = work->request_buf; if (*(__le32 *)hdr->Protocol == SMB1_PROTO_NUMBER && - hdr->Command == SMB_COM_NEGOTIATE) + hdr->Command == SMB_COM_NEGOTIATE) { + work->conn->outstanding_credits++; return 0; + } return -EINVAL; } |