This is a note to let you know that I've just added the patch titled
target: Fix left-over se_lun->lun_sep pointer OOPs
to the 3.15-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-left-over-se_lun-lun_sep-pointer-oops.patch
and it can be found in the queue-3.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 83ff42fcce070801a3aa1cd6a3269d7426271a8d Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Date: Mon, 16 Jun 2014 20:25:54 +0000
Subject: target: Fix left-over se_lun->lun_sep pointer OOPs
From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
commit 83ff42fcce070801a3aa1cd6a3269d7426271a8d upstream.
This patch fixes a left-over se_lun->lun_sep pointer OOPs when one
of the /sys/kernel/config/target/$FABRIC/$WWPN/$TPGT/lun/$LUN/alua*
attributes is accessed after the $DEVICE symlink has been removed.
To address this bug, go ahead and clear se_lun->lun_sep memory in
core_dev_unexport(), so that the existing checks for show/store
ALUA attributes in target_core_fabric_configfs.c work as expected.
Reported-by: Sebastian Herbszt <herbszt@xxxxxx>
Tested-by: Sebastian Herbszt <herbszt@xxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/target/target_core_device.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -616,6 +616,7 @@ void core_dev_unexport(
dev->export_count--;
spin_unlock(&hba->device_lock);
+ lun->lun_sep = NULL;
lun->lun_se_dev = NULL;
}
Patches currently in stable-queue which might be from nab@xxxxxxxxxxxxxxx are
queue-3.15/iscsi-target-avoid-rejecting-incorrect-itt-for-data-out.patch
queue-3.15/target-fix-left-over-se_lun-lun_sep-pointer-oops.patch
queue-3.15/iscsi-target-explicily-clear-login-response-pdu-in-exception-path.patch
queue-3.15/iscsi-target-fix-iscsit_del_np-deadlock-on-unload.patch
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