This is a note to let you know that I've just added the patch titled
scsi: lpfc: Address NULL pointer dereference after starget_to_rport()
to the 5.18-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-lpfc-address-null-pointer-dereference-after-starget_to_rport.patch
and it can be found in the queue-5.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 6f808bd78e8296b4ded813b7182988d57e1f6176 Mon Sep 17 00:00:00 2001
From: James Smart <jsmart2021@xxxxxxxxx>
Date: Fri, 3 Jun 2022 10:43:24 -0700
Subject: scsi: lpfc: Address NULL pointer dereference after starget_to_rport()
From: James Smart <jsmart2021@xxxxxxxxx>
commit 6f808bd78e8296b4ded813b7182988d57e1f6176 upstream.
Calls to starget_to_rport() may return NULL. Add check for NULL rport
before dereference.
Link: https://lore.kernel.org/r/20220603174329.63777-5-jsmart2021@xxxxxxxxx
Fixes: bb21fc9911ee ("scsi: lpfc: Use fc_block_rport()")
Cc: <stable@xxxxxxxxxxxxxxx> # v5.18
Co-developed-by: Justin Tee <justin.tee@xxxxxxxxxxxx>
Signed-off-by: Justin Tee <justin.tee@xxxxxxxxxxxx>
Signed-off-by: James Smart <jsmart2021@xxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/lpfc/lpfc_scsi.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -6316,6 +6316,9 @@ lpfc_device_reset_handler(struct scsi_cm
int status;
u32 logit = LOG_FCP;
+ if (!rport)
+ return FAILED;
+
rdata = rport->dd_data;
if (!rdata || !rdata->pnode) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
@@ -6394,6 +6397,9 @@ lpfc_target_reset_handler(struct scsi_cm
unsigned long flags;
DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq);
+ if (!rport)
+ return FAILED;
+
rdata = rport->dd_data;
if (!rdata || !rdata->pnode) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
Patches currently in stable-queue which might be from jsmart2021@xxxxxxxxx are
queue-5.18/scsi-lpfc-correct-bde-type-for-xmit_seq64_wqe-in-lpf.patch
queue-5.18/scsi-lpfc-address-null-pointer-dereference-after-starget_to_rport.patch
queue-5.18/scsi-lpfc-resolve-some-cleanup-issues-following-abort-path-refactoring.patch
queue-5.18/scsi-lpfc-resolve-some-cleanup-issues-following-sli-path-refactoring.patch
