---

yaml
---
r: 35018
b: refs/heads/master
c: 98a9416
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 60ecebf5a10e42f5e2d6e07eb9e24bdee8500b81
+refs/heads/master: 98a9416af08385f8497e9c1595113a81aefa5d49

trunk/drivers/scsi/iscsi_tcp.c

@@ -358,8 +358,11 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 	int r2tsn = be32_to_cpu(rhdr->r2tsn);
 	int rc;
 
-	if (tcp_conn->in.datalen)
+	if (tcp_conn->in.datalen) {
+		printk(KERN_ERR "iscsi_tcp: invalid R2t with datalen %d\n",
+		       tcp_conn->in.datalen);
 		return ISCSI_ERR_DATALEN;
+	}
 
 	if (tcp_ctask->exp_r2tsn && tcp_ctask->exp_r2tsn != r2tsn)
 		return ISCSI_ERR_R2TSN;
@@ -385,15 +388,23 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 
 	r2t->exp_statsn = rhdr->statsn;
 	r2t->data_length = be32_to_cpu(rhdr->data_length);
-	if (r2t->data_length == 0 ||
-	    r2t->data_length > session->max_burst) {
+	if (r2t->data_length == 0) {
+		printk(KERN_ERR "iscsi_tcp: invalid R2T with zero data len\n");
 		spin_unlock(&session->lock);
 		return ISCSI_ERR_DATALEN;
 	}
 
+	if (r2t->data_length > session->max_burst)
+		debug_scsi("invalid R2T with data len %u and max burst %u."
+			   "Attempting to execute request.\n",
+			    r2t->data_length, session->max_burst);
+
 	r2t->data_offset = be32_to_cpu(rhdr->data_offset);
 	if (r2t->data_offset + r2t->data_length > ctask->total_length) {
 		spin_unlock(&session->lock);
+		printk(KERN_ERR "iscsi_tcp: invalid R2T with data len %u at "
+		       "offset %u and total length %d\n", r2t->data_length,
+		       r2t->data_offset, ctask->total_length);
 		return ISCSI_ERR_DATALEN;
 	}