linux

iv/linux

History

Stefan Haberland c116475f7d s390/dasd: Fix invalid dereferencing of indirect CCW data pointer

commit b3a58f3b90f564f42a5c35778d8c5107b2c2150b upstream.

Fix invalid dereferencing of indirect CCW data pointer in
dasd_eckd_dump_sense() that leads to a kernel panic in error cases.

When using indirect addressing for DASD CCWs (IDAW) the CCW CDA pointer
does not contain the data address itself but a pointer to the IDAL.
This needs to be translated from physical to virtual as well before
using it.

This dereferencing is also used for dasd_page_cache and also fixed
although it is very unlikely that this code path ever gets used.

Fixes: c0bd39601c13 ("s390/dasd: use new address translation helpers")
Cc: stable@vger.kernel.org
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2024-07-11 12:51:19 +02:00

dasd_3990_erp.c

s390/dasd: use new address translation helpers

2024-03-13 09:23:46 +01:00

dasd_alias.c

s390/dasd: use new address translation helpers

2024-03-13 09:23:46 +01:00

dasd_devmap.c

s390/dasd: Remove PRINTK_HEADER and KMSG_COMPONENT definitions

2024-02-08 10:12:01 -07:00

dasd_diag.c

dasd: move queue setup to common code