This is a note to let you know that I've just added the patch titled
scsi: qla2xxx: Avoid fcport pointer dereference
to the 6.4-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-avoid-fcport-pointer-dereference.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 6b504d06976fe4a61cc05dedc68b84fadb397f77 Mon Sep 17 00:00:00 2001
From: Nilesh Javali <njavali@xxxxxxxxxxx>
Date: Wed, 7 Jun 2023 17:08:38 +0530
Subject: scsi: qla2xxx: Avoid fcport pointer dereference
From: Nilesh Javali <njavali@xxxxxxxxxxx>
commit 6b504d06976fe4a61cc05dedc68b84fadb397f77 upstream.
Klocwork reported warning of NULL pointer may be dereferenced. The routine
exits when sa_ctl is NULL and fcport is allocated after the exit call thus
causing NULL fcport pointer to dereference at the time of exit.
To avoid fcport pointer dereference, exit the routine when sa_ctl is NULL.
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Nilesh Javali <njavali@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230607113843.37185-4-njavali@xxxxxxxxxxx
Reviewed-by: Himanshu Madhani <himanshu.madhani@xxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/qla2xxx/qla_edif.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/scsi/qla2xxx/qla_edif.c
+++ b/drivers/scsi/qla2xxx/qla_edif.c
@@ -2361,8 +2361,8 @@ qla24xx_issue_sa_replace_iocb(scsi_qla_h
if (!sa_ctl) {
ql_dbg(ql_dbg_edif, vha, 0x70e6,
"sa_ctl allocation failed\n");
- rval = -ENOMEM;
- goto done;
+ rval = -ENOMEM;
+ return rval;
}
fcport = sa_ctl->fcport;
Patches currently in stable-queue which might be from njavali@xxxxxxxxxxx are
queue-6.4/scsi-qla2xxx-fix-potential-null-pointer-dereference.patch
queue-6.4/scsi-qla2xxx-correct-the-index-of-array.patch
queue-6.4/scsi-qla2xxx-fix-buffer-overrun.patch
queue-6.4/scsi-qla2xxx-fix-task-management-cmd-failure.patch
queue-6.4/scsi-qla2xxx-array-index-may-go-out-of-bound.patch
queue-6.4/scsi-qla2xxx-fix-hang-in-task-management.patch
queue-6.4/scsi-qla2xxx-fix-task-management-cmd-fail-due-to-unavailable-resource.patch
queue-6.4/scsi-qla2xxx-wait-for-io-return-on-terminate-rport.patch
queue-6.4/scsi-qla2xxx-fix-mem-access-after-free.patch
queue-6.4/scsi-qla2xxx-pointer-may-be-dereferenced.patch
queue-6.4/scsi-qla2xxx-remove-unused-nvme_ls_waitq-wait-queue.patch
queue-6.4/scsi-qla2xxx-avoid-fcport-pointer-dereference.patch
queue-6.4/scsi-qla2xxx-multi-que-support-for-tmf.patch
queue-6.4/scsi-qla2xxx-check-valid-rport-returned-by-fc_bsg_to_rport.patch
