linux

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History

Stefan Haberland b3a58f3b90 s390/dasd: Fix invalid dereferencing of indirect CCW data pointer

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>

2024-07-03 16:27:06 +02:00

block

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

2024-07-03 16:27:06 +02:00

char

s390/sclp: Fix sclp_init() cleanup on failure

2024-06-24 11:07:06 +02:00

cio

s390/vfio_ccw: Fix target addresses of TIC CCWs

2024-07-03 12:05:32 +02:00

crypto

s390/zcrypt: Use kvcalloc() instead of kvmalloc_array()