scsi: ses: Fix slab-out-of-bounds in ses_intf_remove()
authorTomas Henzl <thenzl@redhat.com>
Thu, 2 Feb 2023 16:24:51 +0000 (17:24 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 10 Mar 2023 08:40:12 +0000 (09:40 +0100)
commit0595cdb587726b4f0fa780eb7462e3679d141e82
treee55e8c1409dda54b318018492e18c5dfb0dd593a
parent584892fd29a41ef424a148118a3103b16b94fb8c
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: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/scsi/ses.c