linux/drivers/s390
Alexander Gordeev 639886b71d s390/early: fix sclp_early_sccb variable lifetime
Commit ada1da31ce ("s390/sclp: sort out physical vs
virtual pointers usage") fixed the notion of virtual
address for sclp_early_sccb pointer. However, it did
not take into account that kasan_early_init() can also
output messages and sclp_early_sccb should be adjusted
by the time kasan_early_init() is called.

Currently it is not a problem, since virtual and physical
addresses on s390 are the same. Nevertheless, should they
ever differ, this would cause an invalid pointer access.

Fixes: ada1da31ce ("s390/sclp: sort out physical vs virtual pointers usage")
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-13 14:15:04 +01:00
..
block block: handle bio_split_to_limits() NULL return 2023-01-04 09:05:23 -07:00
char s390/early: fix sclp_early_sccb variable lifetime 2023-01-13 14:15:04 +01:00
cio vfio/ccw: remove old IDA format restrictions 2023-01-09 14:34:09 +01:00
crypto s390/zcrypt: use strscpy() to instead of strncpy() 2023-01-09 14:34:09 +01:00
net s390/qeth: convert sysfs snprintf to sysfs_emit 2022-12-28 12:10:42 +00:00
scsi Random number generator updates for Linux 6.2-rc1. 2022-12-12 16:22:22 -08:00
virtio virtio: Revert "virtio: find_vqs() add arg sizes" 2022-08-16 01:40:24 -04:00
Makefile