scsi: ses: Fix slab-out-of-bounds in ses_intf_remove()

jira VULN-157177
cve CVE-2023-53521
commit-author Tomas Henzl <thenzl@redhat.com>
commit 578797f

A fix for:

BUG: KASAN: slab-out-of-bounds in ses_intf_remove+0x23f/0x270 [ses]
Read of size 8 at addr ffff88a10d32e5d8 by task rmmod/12013

When edev->components is zero, accessing edev->component[0] members is
wrong.

Link: https://lore.kernel.org/r/20230202162451.15346-5-thenzl@redhat.com
	Cc: stable@vger.kernel.org
	Signed-off-by: Tomas Henzl <thenzl@redhat.com>
	Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 578797f)
	Signed-off-by: CIQ Kernel Automation <ciq_kernel_automation@ciq.com>

Author: CIQ Kernel Automation

drivers/scsi/ses.c

@@ -833,7 +833,8 @@ static void ses_intf_remove_enclosure(struct scsi_device *sdev)
 	kfree(ses_dev->page2);
 	kfree(ses_dev);
 
-	kfree(edev->component[0].scratch);
+	if (edev->components)
+		kfree(edev->component[0].scratch);
 
 	put_device(&edev->edev);
 	enclosure_unregister(edev);