This is a note to let you know that I've just added the patch titled
qla2xxx: Fix shost use-after-free on device removal
to the 3.17-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:
qla2xxx-fix-shost-use-after-free-on-device-removal.patch
and it can be found in the queue-3.17 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From db7157d4cfce6edf052452fb1d327d4d11b67f4c Mon Sep 17 00:00:00 2001
From: Joe Lawrence <joe.lawrence@xxxxxxxxxxx>
Date: Tue, 26 Aug 2014 17:10:41 -0400
Subject: qla2xxx: Fix shost use-after-free on device removal
From: Joe Lawrence <joe.lawrence@xxxxxxxxxxx>
commit db7157d4cfce6edf052452fb1d327d4d11b67f4c upstream.
Once calling scsi_host_put, be careful to not access qla_hw_data through
the Scsi_Host private data (ie, scsi_qla_host base_vha).
Fixes: fe1b806f4f71 ("qla2xxx: Refactor shutdown code so some functionality can be reused")
Signed-off-by: Joe Lawrence <joe.lawrence@xxxxxxxxxxx>
Acked-by: Chad Dupuis <chad.dupuis@xxxxxxxxxx>
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/qla2xxx/qla_os.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -3119,10 +3119,8 @@ qla2x00_unmap_iobases(struct qla_hw_data
}
static void
-qla2x00_clear_drv_active(scsi_qla_host_t *vha)
+qla2x00_clear_drv_active(struct qla_hw_data *ha)
{
- struct qla_hw_data *ha = vha->hw;
-
if (IS_QLA8044(ha)) {
qla8044_idc_lock(ha);
qla8044_clear_drv_active(ha);
@@ -3193,7 +3191,7 @@ qla2x00_remove_one(struct pci_dev *pdev)
scsi_host_put(base_vha->host);
- qla2x00_clear_drv_active(base_vha);
+ qla2x00_clear_drv_active(ha);
qla2x00_unmap_iobases(ha);
Patches currently in stable-queue which might be from joe.lawrence@xxxxxxxxxxx are
queue-3.17/qla2xxx-fix-shost-use-after-free-on-device-removal.patch
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