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linux-stable/arch/s390
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Janosch Frank cd4d3d5f21 s390: add 3f program exception handler 
Program exception 3f (secure storage violation) can only be detected
when the CPU is running in SIE with a format 4 state description,
e.g. running a protected guest. Because of this and because user
space partly controls the guest memory mapping and can trigger this
exception, we want to send a SIGSEGV to the process running the guest
and not panic the kernel.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Cc: <stable@vger.kernel.org> # 5.7
Fixes: 084ea4d611 ("s390/mm: add (non)secure page access exceptions handlers")
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-09-14 10:08:07 +02:00
..
appldata s390/appldata: use struct_size() helper 2020-06-29 16:32:34 +02:00
boot mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
configs s390: update defconfigs 2020-09-02 13:17:05 +02:00
crypto mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
hypfs
include s390: don't trace preemption in percpu macros 2020-08-26 18:07:04 +02:00
kernel s390: add 3f program exception handler 2020-09-14 10:08:07 +02:00
kvm mm/gup: remove task_struct pointer for all gup code 2020-08-12 10:58:04 -07:00
lib s390/test_unwind: fix possible memleak in test_unwind() 2020-08-11 18:16:16 +02:00
mm s390: add 3f program exception handler 2020-09-14 10:08:07 +02:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-08-05 20:13:21 -07:00
oprofile
pci s390/pci: fix leak of DMA tables on hard unplug 2020-09-14 10:08:07 +02:00
purgatory .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
scripts
tools .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
Kbuild s390/numa: move code to arch/s390/kernel 2020-08-11 18:16:55 +02:00
Kconfig s390: fix GENERIC_LOCKBREAK dependency typo in Kconfig 2020-09-02 13:17:05 +02:00
Kconfig.debug treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile kbuild: remove cc-option test of -ffreestanding 2020-07-07 11:13:10 +09:00