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linux/arch/s390/kernel
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Heiko Carstens fd78c59446 s390/ptrace: fix storage key handling 
The key member of the runtime instrumentation control block contains
only the access key, not the complete storage key. Therefore the value
must be shifted by four bits. Since existing user space does not
necessarily query and set the access key correctly, just ignore the
user space provided key and use the correct one.
Note: this is only relevant for debugging purposes in case somebody
compiles a kernel with a default storage access key set to a value not
equal to zero.

Fixes: 262832bc5acd ("s390/ptrace: add runtime instrumention register get/set")
Reported-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2020-08-17 13:17:14 +02:00
..
syscalls
all arch: remove system call sys_sysctl
2020-08-14 19:56:56 -07:00
vdso64
s390/vdso: fix vDSO clock_getres()
2020-06-16 13:44:05 +02:00
.gitignore
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
alternative.c
s390: add automatic detection of the spectre defense
2018-03-28 08:38:24 +02:00
asm-offsets.c
s390/vdso: fix vDSO clock_getres()
2020-06-16 13:44:05 +02:00
audit.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
audit.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
base.S
s390/base: remove unused s390_base_mcck_handler
2019-09-03 13:53:56 +02:00
cache.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
compat_audit.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
compat_linux.c
s390: use generic UID16 implementation
2019-01-18 09:33:18 +01:00
compat_linux.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
compat_ptrace.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
compat_signal.c
signal: Remove task parameter from force_sig
2019-05-27 09:36:28 -05:00
cpcmd.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
crash_dump.c
mm/memblock: expose only miminal interface to add/walk physmem
2020-07-10 15:08:09 +02:00
debug.c
s390/debug: debug feature version 3
2020-08-11 18:16:43 +02:00
diag.c
s390/ftrace: fix potential crashes when switching tracers
2020-04-22 16:20:55 +02:00
dis.c
s390/disassembler: don't hide instruction addresses
2019-11-12 11:24:10 +01:00
dumpstack.c
kernel: rename show_stack_loglvl() => show_stack()
2020-06-09 09:39:13 -07:00
early_printk.c
s390/sclp: avoid using strncmp with hardcoded length
2019-08-29 15:34:58 +02:00
early.c
s390/kasan: fix early pgm check handler execution
2020-06-23 14:05:50 +02:00
ebcdic.c
s390: ebcdic: convert comments to UTF-8
2018-08-23 18:48:43 -07:00
entry.h
s390/mm: add (non)secure page access exceptions handlers
2020-02-27 19:44:40 +01:00
entry.S
s390: fix comment regarding interrupts in svc
2020-07-10 15:08:23 +02:00
fpu.c
s390: correct some inline assembly constraints
2019-04-17 10:40:57 +02:00
ftrace.c
maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault
2020-06-17 10:57:41 -07:00
guarded_storage.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2017-11-13 11:47:01 -08:00
head64.S
s390/head64: correct init_task stack setup
2019-11-30 10:52:45 +01:00
idle.c
s390: add trace events for idle enter/exit
2020-07-10 15:08:27 +02:00
ima_arch.c
s390/kexec_file: Disable kexec_load when IPLed secure
2019-04-29 10:44:03 +02:00
ipl_vmparm.c
s390/ipl: provide uapi header for list directed IPL
2019-04-26 12:34:05 +02:00
ipl.c
s390: use scnprintf() in sys_##_prefix##_##_name##_show
2020-06-16 13:44:05 +02:00
irq.c
s390/irq: make init_ext_interrupts static
2020-03-11 14:18:44 +01:00
jump_label.c
s390/jump_label: remove unused structure definition
2019-06-07 10:10:10 +02:00
kdebugfs.c
s390: no need to check return value of debugfs_create functions
2019-01-28 15:58:55 +01:00
kexec_elf.c
kexec: Fix file verification on S390
2019-09-10 13:27:51 +01:00
kexec_image.c
kexec_file: split KEXEC_VERIFY_SIG into KEXEC_SIG and KEXEC_SIG_FORCE
2019-08-19 21:54:15 -07:00
kprobes.c
s390/kernel: expand exception table logic to allow new handling options
2020-07-20 10:55:50 +02:00
lgr.c
s390: convert to msecs_to_jiffies()
2020-06-29 16:31:46 +02:00
machine_kexec_file.c
s390/kexec_file: fix initrd location for kdump kernel
2020-05-14 23:21:37 +02:00
machine_kexec_reloc.c
s390/kaslr: add support for R_390_JMP_SLOT relocation type
2020-05-20 10:13:27 +02:00
machine_kexec.c
mm: remove unneeded includes of <asm/pgalloc.h>
2020-08-07 11:33:26 -07:00
Makefile
s390/numa: move code to arch/s390/kernel
2020-08-11 18:16:55 +02:00
mcount.S
s390: support KPROBES_ON_FTRACE
2020-01-30 13:07:55 +01:00
module.c
s390/module: Use s390_kernel_write() for late relocations
2020-05-08 00:12:43 +02:00
nmi.c
s390: remove critical section cleanup from entry.S
2020-05-28 12:21:54 +02:00
nospec-branch.c
s390 updates for the 5.2 merge window
2019-05-06 16:42:54 -07:00
nospec-sysfs.c
s390: Convert IS_ENABLED uses to __is_defined
2019-04-11 13:36:53 +02:00
numa.c
s390/numa: move code to arch/s390/kernel
2020-08-11 18:16:55 +02:00
os_info.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
perf_cpum_cf_common.c
s390/cpum_cf: move common functions into a separate file
2019-02-22 09:19:55 +01:00
perf_cpum_cf_diag.c
s390/cpumf: Adjust registration of s390 PMU device drivers
2019-11-20 17:16:01 +01:00
perf_cpum_cf_events.c
s390/cpum_cf,perf: change DFLT_CCERROR counter name
2020-07-21 13:53:56 +02:00
perf_cpum_cf.c
s390/cpumf: Adjust registration of s390 PMU device drivers
2019-11-20 17:16:01 +01:00
perf_cpum_sf.c
s390/cpum_sf: prohibit callchain data collection
2020-07-01 20:02:33 +02:00
perf_event.c
s390: add error handling to perf_callchain_kernel
2019-10-31 17:20:54 +01:00
perf_regs.c
s390/perf: fix gcc 8 array-bounds warning
2018-07-02 11:24:54 +02:00
pgm_check.S
s390/mm: add (non)secure page access exceptions handlers
2020-02-27 19:44:40 +01:00
process.c
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-08-09 13:33:54 -07:00
processor.c
s390/cpuinfo: do not skip info for CPUs without MHz feature
2020-03-23 13:41:55 +01:00
ptrace.c
s390/ptrace: fix storage key handling
2020-08-17 13:17:14 +02:00
reipl.S
s390: add missing ENDPROC statements to assembler functions
2019-05-02 13:54:11 +02:00
relocate_kernel.S
s390: add missing ENDPROC statements to assembler functions
2019-05-02 13:54:11 +02:00
runtime_instr.c
s390/runtime_instrumentation: fix storage key handling
2020-08-17 13:17:10 +02:00
setup.c
s390: implement diag318
2020-08-06 12:59:31 -07:00
signal.c
s390: use fallthrough;
2020-03-25 12:39:37 +01:00
smp.c
Remove uninitialized_var() macro for v5.9-rc1
2020-08-04 13:49:43 -07:00
stacktrace.c
s390/livepatch: Implement reliable stack tracing for the consistency model
2019-11-30 10:52:48 +01:00
sthyi.c
s390/sthyi: Fix machine name validity indication
2018-10-15 12:17:00 +02:00
sys_s390.c
s390: autogenerate compat syscall wrappers
2019-01-18 09:33:19 +01:00
sysinfo.c
s390: no need to check return value of debugfs_create functions
2019-01-28 15:58:55 +01:00
time.c
s390/time: improve comparison for tod steering
2020-07-22 17:02:13 +02:00
topology.c
s390: convert to msecs_to_jiffies()
2020-06-29 16:31:46 +02:00
trace.c
s390/ftrace: fix potential crashes when switching tracers
2020-04-22 16:20:55 +02:00
traps.c
s390/kernel: expand exception table logic to allow new handling options
2020-07-20 10:55:50 +02:00
unwind_bc.c
s390/unwind: stop gracefully at user mode pt_regs in irq stack
2019-12-18 23:29:26 +01:00
uprobes.c
s390/uprobes: implement arch_uretprobe_is_alive()
2018-04-23 07:57:16 +02:00
uv.c
s390/protvirt: use scnprintf() instead of snprintf()
2020-06-16 13:44:05 +02:00
vdso.c
mmap locking API: use coccinelle to convert mmap_sem rwsem call sites
2020-06-09 09:39:14 -07:00
vmlinux.lds.S
vmlinux.lds.h: Replace RW_DATA_SECTION with RW_DATA
2019-11-04 15:57:41 +01:00
vtime.c
sched/cputime: Rename vtime_account_system() to vtime_account_kernel()
2019-10-09 12:39:25 +02:00