4.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: tangwenji <tang.wenji@xxxxxxxxxx>
commit c58a252beb04cf0e02d6a746b2ed7ea89b6deb71 upstream.
When at least two initiators register pr on the same LUN,
the target returns the exception data due to buffer offset
error, therefore the initiator executes command 'sg_persist -s'
may cause the initiator to appear segfault error.
This fixes a regression originally introduced by:
commit a85d667e58bddf73be84d1981b41eaac985ed216
Author: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
Date: Tue May 23 16:48:27 2017 -0700
target: Use {get,put}_unaligned_be*() instead of open coding these functions
Signed-off-by: tangwenji <tang.wenji@xxxxxxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/target/target_core_pr.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -4011,6 +4011,7 @@ core_scsi3_pri_read_full_status(struct s
* Set the ADDITIONAL DESCRIPTOR LENGTH
*/
put_unaligned_be32(desc_len, &buf[off]);
+ off += 4;
/*
* Size of full desctipor header minus TransportID
* containing $FABRIC_MOD specific) initiator device/port