* Patch "target: Fix VERIFY_16 handling in sbc_parse_cdb" has been added to the 4.9-stable tree
@ 2017-03-24 15:03 gregkh
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From: gregkh @ 2017-03-24 15:03 UTC (permalink / raw)
To: post, gregkh, nab; +Cc: stable, stable-commits
This is a note to let you know that I've just added the patch titled
target: Fix VERIFY_16 handling in sbc_parse_cdb
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
target-fix-verify_16-handling-in-sbc_parse_cdb.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From 13603685c1f12c67a7a2427f00b63f39a2b6f7c9 Mon Sep 17 00:00:00 2001
From: Max Lohrmann <post@wickenrode.com>
Date: Tue, 7 Mar 2017 22:09:56 -0800
Subject: target: Fix VERIFY_16 handling in sbc_parse_cdb
From: Max Lohrmann <post@wickenrode.com>
commit 13603685c1f12c67a7a2427f00b63f39a2b6f7c9 upstream.
As reported by Max, the Windows 2008 R2 chkdsk utility expects
VERIFY_16 to be supported, and does not handle the returned
CHECK_CONDITION properly, resulting in an infinite loop.
The kernel will log huge amounts of this error:
kernel: TARGET_CORE[iSCSI]: Unsupported SCSI Opcode 0x8f, sending
CHECK_CONDITION.
Signed-off-by: Max Lohrmann <post@wickenrode.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/target/target_core_sbc.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -1104,9 +1104,15 @@ sbc_parse_cdb(struct se_cmd *cmd, struct
return ret;
break;
case VERIFY:
+ case VERIFY_16:
size = 0;
- sectors = transport_get_sectors_10(cdb);
- cmd->t_task_lba = transport_lba_32(cdb);
+ if (cdb[0] == VERIFY) {
+ sectors = transport_get_sectors_10(cdb);
+ cmd->t_task_lba = transport_lba_32(cdb);
+ } else {
+ sectors = transport_get_sectors_16(cdb);
+ cmd->t_task_lba = transport_lba_64(cdb);
+ }
cmd->execute_cmd = sbc_emulate_noop;
goto check_lba;
case REZERO_UNIT:
Patches currently in stable-queue which might be from post@wickenrode.com are
queue-4.9/target-fix-verify_16-handling-in-sbc_parse_cdb.patch
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2017-03-24 15:03 Patch "target: Fix VERIFY_16 handling in sbc_parse_cdb" has been added to the 4.9-stable tree gregkh
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