This is a note to let you know that I've just added the patch titled
target/pscsi: Fix NULL pointer dereference in get_device_type
to the 3.19-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-pscsi-fix-null-pointer-dereference-in-get_device_type.patch
and it can be found in the queue-3.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 215a8fe4198f607f34ecdbc9969dae783d8b5a61 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Date: Fri, 27 Feb 2015 03:54:13 -0800
Subject: target/pscsi: Fix NULL pointer dereference in get_device_type
From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
commit 215a8fe4198f607f34ecdbc9969dae783d8b5a61 upstream.
This patch fixes a NULL pointer dereference OOPs with pSCSI backends
within target_core_stat.c code. The bug is caused by a configfs attr
read if no pscsi_dev_virt->pdv_sd has been configured.
Reported-by: Olaf Hering <olaf@xxxxxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/target/target_core_pscsi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -1121,7 +1121,7 @@ static u32 pscsi_get_device_type(struct
struct pscsi_dev_virt *pdv = PSCSI_DEV(dev);
struct scsi_device *sd = pdv->pdv_sd;
- return sd->type;
+ return (sd) ? sd->type : TYPE_NO_LUN;
}
static sector_t pscsi_get_blocks(struct se_device *dev)
Patches currently in stable-queue which might be from nab@xxxxxxxxxxxxxxx are
queue-3.19/iscsi-target-avoid-early-conn_logout_comp-for-iser-connections.patch
queue-3.19/target-pscsi-fix-null-pointer-dereference-in-get_device_type.patch
queue-3.19/target-fix-virtual-lun-0-target_configure_device-failure-oops.patch
queue-3.19/target-fix-reference-leak-in-target_get_sess_cmd-error-path.patch
--
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