From: Mike Christie <michaelc@cs.wisc.edu>
To: linux-scsi@vger.kernel.org
Subject: [PATCH 3/11] iscsi bugfixes: handle data rsp errors
Date: Mon, 24 Jul 2006 15:47:17 -0500 [thread overview]
Message-ID: <1153774037.1040.34.camel@madmax> (raw)
if iscsi_data_rsp fails we must bail out. Since the pdu values like
data length are invalid we cannot continue to process the data since
it could over run buffers.
This fixes a bug with cisco 5428s where that target is sending
too much data.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index ab324d9..7d78459 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -486,6 +486,8 @@ iscsi_tcp_hdr_recv(struct iscsi_conn *co
case ISCSI_OP_SCSI_DATA_IN:
tcp_conn->in.ctask = session->cmds[itt];
rc = iscsi_data_rsp(conn, tcp_conn->in.ctask);
+ if (rc)
+ return rc;
/* fall through */
case ISCSI_OP_SCSI_CMD_RSP:
tcp_conn->in.ctask = session->cmds[itt];
@@ -532,7 +534,7 @@ copy_hdr:
* skbs to complete the command then we have to copy the header
* for later use
*/
- if (tcp_conn->in.zero_copy_hdr && tcp_conn->in.copy <
+ if (tcp_conn->in.zero_copy_hdr && tcp_conn->in.copy <=
(tcp_conn->in.datalen + tcp_conn->in.padding +
(conn->datadgst_en ? 4 : 0))) {
debug_tcp("Copying header for later use. in.copy %d in.datalen"
reply other threads:[~2006-07-24 20:48 UTC|newest]
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