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Commit 40af9a6d authored by Tomas Henzl's avatar Tomas Henzl Committed by Greg Kroah-Hartman
Browse files

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

commit 578797f0c8cbc2e3ec5fc0dab87087b4c7073686 upstream.

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: default avatarTomas Henzl <thenzl@redhat.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 79ec5dd5

drivers/scsi/ses.c

+2 −1
Original line number Diff line number Diff line
@@ -856,6 +856,7 @@ static void ses_intf_remove_enclosure(struct scsi_device *sdev) 
	kfree(ses_dev->page2);

	kfree(ses_dev);



	if (edev->components)

		kfree(edev->component[0].scratch);



	put_device(&edev->edev);