This is a note to let you know that I've just added the patch titled
scsi: myrs: Fix a double free in myrs_cleanup()
to the 5.11-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-myrs-fix-a-double-free-in-myrs_cleanup.patch
and it can be found in the queue-5.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 2bb817712e2f77486d6ee17e7efaf91997a685f8 Mon Sep 17 00:00:00 2001
From: Lv Yunlong <lyl2019@xxxxxxxxxxxxxxxx>
Date: Wed, 10 Mar 2021 22:30:05 -0800
Subject: scsi: myrs: Fix a double free in myrs_cleanup()
From: Lv Yunlong <lyl2019@xxxxxxxxxxxxxxxx>
commit 2bb817712e2f77486d6ee17e7efaf91997a685f8 upstream.
In myrs_cleanup(), cs->mmio_base will be freed twice by iounmap().
Link: https://lore.kernel.org/r/20210311063005.9963-1-lyl2019@xxxxxxxxxxxxxxxx
Fixes: 77266186397c ("scsi: myrs: Add Mylex RAID controller (SCSI interface)")
Reviewed-by: Hannes Reinecke <hare@xxxxxxx>
Signed-off-by: Lv Yunlong <lyl2019@xxxxxxxxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/myrs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/scsi/myrs.c
+++ b/drivers/scsi/myrs.c
@@ -2273,12 +2273,12 @@ static void myrs_cleanup(struct myrs_hba
if (cs->mmio_base) {
cs->disable_intr(cs);
iounmap(cs->mmio_base);
+ cs->mmio_base = NULL;
}
if (cs->irq)
free_irq(cs->irq, cs);
if (cs->io_addr)
release_region(cs->io_addr, 0x80);
- iounmap(cs->mmio_base);
pci_set_drvdata(pdev, NULL);
pci_disable_device(pdev);
scsi_host_put(cs->host);
Patches currently in stable-queue which might be from lyl2019@xxxxxxxxxxxxxxxx are
queue-5.11/scsi-myrs-fix-a-double-free-in-myrs_cleanup.patch
