| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.10 057/157] scsi: myrs: Fix a double free in myrs_cleanup() | Date | Mon, 22 Mar 2021 13:26:54 +0100 |
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From: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
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@mail.ustc.edu.cn Fixes: 77266186397c ("scsi: myrs: Add Mylex RAID controller (SCSI interface)") Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/scsi/myrs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/scsi/myrs.c +++ b/drivers/scsi/myrs.c @@ -2274,12 +2274,12 @@ 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);
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