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fa968ee215
linux/arch/s390/include/asm
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Martin Schwidefsky fa968ee215 s390/signal: set correct address space control 
If user space is running in primary mode it can switch to secondary
or access register mode, this is used e.g. in the clock_gettime code
of the vdso. If a signal is delivered to the user space process while
it has been running in access register mode the signal handler is
executed in access register mode as well which will result in a crash
most of the time.

Set the address space control bits in the PSW to the default for the
execution of the signal handler and make sure that the previous
address space control is restored on signal return. Take care
that user space can not switch to the kernel address space by
modifying the registers in the signal frame.

Cc: stable@vger.kernel.org
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-11-12 16:24:38 +01:00
..
airq.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
appldata.h s390/appldata: change return value of appldata_asm 2012-09-26 15:45:15 +02:00
asm-offsets.h kbuild: move asm-offsets.h to include/generated 2009-12-12 13:08:14 +01:00
atomic.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
barrier.h s390/barrier: make use of fast-bcr facility 2012-05-16 14:42:45 +02:00
bitops.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
bug.h panic: Allow warnings to set different taint flags 2010-05-19 08:36:48 +01:00
bugs.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
cache.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
cacheflush.h module: undo module RONX protection correctly. 2011-05-19 16:55:26 +09:30
ccwdev.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
ccwgroup.h s390/ccwgroup: remove unused ccwgroup_device member 2012-06-05 13:23:37 +02:00
checksum.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
chpid.h UAPI Disintegration 2012-10-09 2012-10-09 14:18:10 +02:00
cio.h s390: Move css limits from drivers/s390/cio/ to include/asm/. 2012-11-06 22:39:49 +01:00
cmb.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
cmpxchg.h s390/cmpxchg,percpu: implement cmpxchg_double() 2012-09-26 15:45:25 +02:00
compat.h s390/signal: set correct address space control 2012-11-12 16:24:38 +01:00
cpcmd.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
cpu_mf.h s390: add support for runtime instrumentation 2012-09-26 15:45:02 +02:00
cpu.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
cputime.h vtime: Consolidate system/idle context detection 2012-09-25 15:42:37 +02:00
crw.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
css_chars.h s390/css_chars: remove superfluous ifdef 2012-10-09 14:17:00 +02:00
ctl_reg.h s390/headers: replace __s390x__ with CONFIG_64BIT where possible 2012-05-24 10:10:10 +02:00
current.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
debug.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
delay.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
device.h
diag.h [S390] replace diag10() with diag10_range() function 2011-05-10 17:13:43 +02:00
div64.h
dma.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
eadm.h s390/scm: remove superfluous lock 2012-09-26 15:45:09 +02:00
ebcdic.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
elf.h s390/crashdump: move fill_cpu_elf_notes() prototype to header file 2012-09-26 15:45:22 +02:00
emergency-restart.h
etr.h s390/etr,stp: use -EOPNOTSUPP instead of -ENOSYS 2012-09-26 15:45:14 +02:00
exec.h Disintegrate asm/system.h for S390 2012-03-28 18:30:02 +01:00
extmem.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
facility.h [S390] Fix stfle() lowcore protection problem 2012-04-11 14:28:26 +02:00
fb.h
fcx.h [S390] cio: update sac values 2008-12-25 13:39:06 +01:00
ftrace.h ftrace/s390: mcount offset calculation 2011-05-16 15:05:06 -04:00
futex.h s390/headers: remove #ifdef __KERNEL__ from not exported headers 2012-05-24 10:10:05 +02:00
hardirq.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
hugetlb.h thp, s390: architecture backend for thp on s390 2012-10-09 16:22:31 +09:00
idals.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
io.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
ipl.h [S390] kernel: Add z/VM LGR detection 2012-03-11 11:59:29 -04:00
irq_regs.h
irq.h s390: add support for runtime instrumentation 2012-09-26 15:45:02 +02:00
irqflags.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
isc.h s390/cio: add eadm subchannel driver 2012-09-26 15:45:00 +02:00
itcw.h UAPI: Alter the S390 asm include guards to be recognisable by the UAPI splitter 2011-12-13 09:26:45 +00:00
jump_label.h static keys: Introduce 'struct static_key', static_key_true()/false() and static_key_slow_[inc|dec]() 2012-02-24 10:05:59 +01:00
Kbuild UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
kdebug.h [S390] cleanup trap handling 2011-12-27 11:27:12 +01:00
kexec.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
kmap_types.h s390/headers: remove #ifdef __KERNEL__ from not exported headers 2012-05-24 10:10:05 +02:00
kprobes.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
kvm_host.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
kvm_para.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
linkage.h [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
local64.h arch: Implement local64_t 2010-06-09 11:12:36 +02:00
local.h
lowcore.h s390: add support for transactional memory 2012-09-26 15:45:02 +02:00
mathemu.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
mman.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
mmu_context.h s390/mm: rename addressing_mode to s390_user_mode 2012-09-26 15:45:05 +02:00
mmu.h [S390] Fix build errors (fallout from system.h disintegration) 2012-03-30 09:41:12 +02:00
module.h Make most arch asm/module.h files use asm-generic/module.h 2012-09-28 14:31:03 +09:30
mutex.h [S390] mutex: Introduce arch_mutex_cpu_relax() 2011-01-05 12:47:31 +01:00
nmi.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
os_info.h s390/kernel: Remove OS info init function call and diag 308 for kdump 2012-05-23 17:06:50 +02:00
page.h s390/mm: use pfmf instruction to initialize storage keys 2012-10-09 14:16:55 +02:00
pci.h
percpu.h s390/cmpxchg,percpu: implement cmpxchg_double() 2012-09-26 15:45:25 +02:00
perf_event.h perf_cpum_cf: Add support for counters available with IBM zEC12 2012-10-18 17:50:09 +02:00
pgalloc.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
pgtable.h s390/thp: respect page protection in pmd_none() and pmd_present() 2012-10-26 16:44:23 +02:00
processor.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-10-10 12:02:25 +09:00
ptrace.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
qdio.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
reset.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
runtime_instr.h s390: add support for runtime instrumentation 2012-09-26 15:45:02 +02:00
rwsem.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
scatterlist.h [S390] set ARCH_HAS_SG_CHAIN for s390 2010-10-25 16:10:15 +02:00
schid.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
sclp.h KVM updates for the 3.6 merge window 2012-07-24 12:01:20 -07:00
scsw.h s390: add eadm related structures 2012-09-26 15:44:57 +02:00
seccomp.h [S390] secure computing arch backend 2009-06-12 10:27:31 +02:00
sections.h
segment.h
setup.h UAPI Disintegration 2012-10-09 2012-10-09 14:18:10 +02:00
sfp-machine.h
sfp-util.h s390/headers: replace __s390x__ with CONFIG_64BIT where possible 2012-05-24 10:10:10 +02:00
shmparam.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
signal.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
sigp.h KVM: s390: Fix sigp sense handling. 2012-07-03 14:55:37 -03:00
smp.h s390/smp,topology: add polarization member to pcpu struct 2012-09-26 15:45:09 +02:00
sparsemem.h s390/mm: remove MAX_PHYSADDR_BITS define 2012-08-08 07:32:55 -07:00
spinlock_types.h locking: Convert raw_rwlock to arch_rwlock 2009-12-14 23:55:32 +01:00
spinlock.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
string.h s390/string: provide asm lib functions for memcpy and memcmp 2012-09-26 15:44:50 +02:00
switch_to.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2012-10-01 11:49:56 -07:00
syscall.h s390/seccomp: add support for system call filtering using BPF 2012-08-08 07:32:56 -07:00
sysinfo.h s390/sysinfo,stsi: change return code handling 2012-09-26 15:45:12 +02:00
termios.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
thread_info.h sanitize tsk_is_polling() 2012-10-01 09:58:13 -04:00
timex.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
tlb.h thp, s390: architecture backend for thp on s390 2012-10-09 16:22:31 +09:00
tlbflush.h s390/mm: fix deadlock in unmap_hugepage_range() 2012-09-03 11:14:06 +02:00
topology.h s390/smp,topology: add polarization member to pcpu struct 2012-09-26 15:45:09 +02:00
types.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
uaccess.h s390/exceptions: switch to relative exception table entries 2012-09-26 15:45:10 +02:00
unaligned.h
unistd.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2012-10-10 19:48:33 +09:00
user.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
vdso.h s390/headers: remove #ifdef __KERNEL__ from not exported headers 2012-05-24 10:10:05 +02:00
vtimer.h s390/vtimer: rework virtual timer interface 2012-07-20 11:15:08 +02:00
xor.h