Patch "scsi: qla2xxx: Fix NULL pointer access for fcport structure" has been added to the 4.14-stable tree

This is a note to let you know that I've just added the patch titled

scsi: qla2xxx: Fix NULL pointer access for fcport structure

to the 4.14-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:
scsi-qla2xxx-fix-null-pointer-access-for-fcport-structure.patch
and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Quinn Tran <[email protected]>
Date: Thu, 28 Dec 2017 12:33:09 -0800
Subject: scsi: qla2xxx: Fix NULL pointer access for fcport structure

From: Quinn Tran <[email protected]>

commit 5c25d451163cab9be80744cbc5448d6b95ab8d1a upstream.

when processing iocb in a timeout case, driver was trying to log messages without verifying if the fcport structure could have valid data. This results in a NULL pointer access.

---
 drivers/scsi/qla2xxx/qla_init.c |   13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

@@ -102,11 +102,16 @@ qla2x00_async_iocb_timeout(void *data)
 	struct srb_iocb *lio = &sp->u.iocb_cmd;
 	struct event_arg ea;
 
-	ql_dbg(ql_dbg_disc, fcport->vha, 0x2071,
-	    "Async-%s timeout - hdl=%x portid=%06x %8phC.\n",
-	    sp->name, sp->handle, fcport->d_id.b24, fcport->port_name);
+	if (fcport) {
+		ql_dbg(ql_dbg_disc, fcport->vha, 0x2071,
+		    "Async-%s timeout - hdl=%x portid=%06x %8phC.\n",
+		    sp->name, sp->handle, fcport->d_id.b24, fcport->port_name);
 
-	fcport->flags &= ~FCF_ASYNC_SENT;
+		fcport->flags &= ~FCF_ASYNC_SENT;
+	} else {
+		pr_info("Async-%s timeout - hdl=%x.\n",
+		    sp->name, sp->handle);
+	}
 
 	switch (sp->type) {
 	case SRB_LOGIN_CMD:

Patches currently in stable-queue which might be from [email protected] are

queue-4.14/scsi-qla2xxx-fix-null-pointer-access-for-fcport-structure.patch