Heiko Carstens 5c3b8f0575 s390/entry: Fix last breaking event handling in case of stack corruption ...

[ Upstream commit ae952eea6f ]

In case of stack corruption stack_invalid() is called and the expectation
is that register r10 contains the last breaking event address. This
dependency is quite subtle and broke a couple of years ago without that
anybody noticed.

Fix this by getting rid of the dependency and read the last breaking event
address from lowcore.

Fixes: 56e62a7370 ("s390: convert to generic entry")
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2025-05-18 08:24:47 +02:00

..

syscalls

s390/syscalls: Avoid creation of arch/arch/ directory

2024-12-05 14:01:14 +01:00

vdso32

Merge tag 's390-6.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

2024-05-21 12:09:36 -07:00

vdso64

s390/vdso: Use one large alternative instead of an alternative branch

2024-09-23 17:57:04 +02:00

.gitignore

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abs_lowcore.c

s390: Add infrastructure to patch lowcore accesses

2024-07-23 16:02:32 +02:00

alternative.c

s390: Add infrastructure to patch lowcore accesses

2024-07-23 16:02:32 +02:00

asm-offsets.c

s390/entry: Unify save_area_sync and save_area_async

2024-08-29 22:56:34 +02:00

audit.c

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audit.h

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cache.c

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cert_store.c

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compat_audit.c

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compat_linux.c

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compat_linux.h

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compat_ptrace.h

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compat_signal.c

s390/vdso: Move vdso symbol handling to separate header file

2024-09-13 17:28:36 +02:00

cpacf.c

s390/crypto: Display Query and Query Authentication Information in sysfs

2024-09-12 14:13:27 +02:00

cpcmd.c

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cpufeature.c

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crash_dump.c

s390/crash: Do not use VM info if os_info does not have it

2024-06-05 17:03:24 +02:00

ctlreg.c

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debug.c

[tree-wide] finally take no_llseek out

2024-09-27 08:18:43 -07:00

diag.c

s390/wti: Introduce infrastructure for warning track interrupt

2024-08-29 22:56:34 +02:00

dis.c

s390/disassembler: Remove duplicate instruction format RSY_RDRU

2024-09-12 14:13:27 +02:00

dumpstack.c

s390: Replace S390_lowcore by get_lowcore()

2024-06-18 17:01:33 +02:00

early_printk.c

s390/early: Dump register contents and call trace for early crashes

2024-08-22 19:28:11 +02:00

early.c

s390/setup: Recognize sequential instruction fetching facility

2024-08-29 22:56:34 +02:00

ebcdic.c

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entry.h

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entry.S

s390/entry: Fix last breaking event handling in case of stack corruption

2025-05-18 08:24:47 +02:00

facility.c

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fpu.c

s390/fpu: Re-add exception handling in load_fpu_state()

2024-07-31 16:30:20 +02:00

ftrace.c

s390/ftrace: Avoid extra serialization for graph caller patching

2024-08-29 22:56:34 +02:00

ftrace.h

s390/ftrace: Remove unused ftrace_plt_template*

2024-08-27 20:16:48 +02:00

guarded_storage.c

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head64.S

s390/head64: Make startup code ready for lowcore relocation

2024-07-23 16:02:32 +02:00

hiperdispatch.c

s390/hiperdispatch: Add hiperdispatch debug counters

2024-08-29 22:56:35 +02:00

idle.c

s390/idle: Remove duplicate get_lowcore() calls

2024-06-18 17:01:33 +02:00

ima_arch.c

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ipl_vmparm.c

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ipl.c

s390/ipl: Fix never less than zero warning

2024-12-27 14:01:59 +01:00

irq.c

s390/wti: Introduce infrastructure for warning track interrupt

2024-08-29 22:56:34 +02:00

jump_label.c

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kdebugfs.c

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kexec_elf.c

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kexec_image.c

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kprobes.c

s390/entry: Mark IRQ entries to fix stack depot warnings

2024-12-09 10:41:03 +01:00

lgr.c

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machine_kexec_file.c

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machine_kexec_reloc.c

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machine_kexec.c

s390/kdump: Make kdump ready for lowcore relocation

2024-07-23 16:02:32 +02:00

Makefile

s390/crypto: Display Query and Query Authentication Information in sysfs

2024-09-12 14:13:27 +02:00

mcount.S

s390: Use MARCH_HAS_*_FEATURES defines

2024-09-07 17:12:42 +02:00

module.c

arch: make execmem setup available regardless of CONFIG_MODULES

2024-05-14 00:31:44 -07:00

nmi.c

s390/nmi: Remove duplicate get_lowcore() calls

2024-06-18 17:01:33 +02:00

nospec-branch.c

s390/nospec: Push down alternative handling

2024-07-23 16:02:31 +02:00

nospec-sysfs.c

s390/nospec: Push down alternative handling

2024-07-23 16:02:31 +02:00

numa.c

arch, mm: move definition of node_data to generic code

2024-09-03 21:15:28 -07:00

os_info.c

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perf_cpum_cf_events.c

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perf_cpum_cf.c

s390/cpumf: Fix double free on error in cpumf_pmu_event_init()

2025-04-20 10:16:02 +02:00

perf_cpum_sf.c

s390/cpumf: Fix double free on error in cpumf_pmu_event_init()

2025-04-20 10:16:02 +02:00

perf_event.c

s390/stacktrace: Merge perf_callchain_user() and arch_stack_walk_user()

2024-05-14 13:37:06 +02:00

perf_pai_crypto.c

perf/core: Save raw sample data conditionally based on sample type

2025-02-08 09:56:53 +01:00

perf_pai_ext.c

perf/core: Save raw sample data conditionally based on sample type

2025-02-08 09:56:53 +01:00

perf_regs.c

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process.c

s390: Replace S390_lowcore by get_lowcore()

2024-06-18 17:01:33 +02:00

processor.c

s390/alternatives: Move text sync functions

2024-07-23 16:02:31 +02:00

ptrace.c

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reipl.S

s390/kdump: Make kdump ready for lowcore relocation

2024-07-23 16:02:32 +02:00

relocate_kernel.S

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rethook.c

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rethook.h

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runtime_instr.c

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setup.c

s390/sclp: Initialize sclp subsystem via arch_cpu_finalize_init()

2025-02-08 09:58:07 +01:00

signal.c

s390/vdso: Move vdso symbol handling to separate header file

2024-09-13 17:28:36 +02:00

smp.c

s390/smp: Add cpu capacities

2024-08-29 22:56:35 +02:00

stacktrace.c

s390/stacktrace: Use break instead of return statement

2024-12-09 10:41:06 +01:00

sthyi.c

s390/sthyi: Use cached data when diag is busy

2024-07-10 19:50:45 +02:00

syscall.c

Merge tag 's390-6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

2024-07-18 15:41:45 -07:00

sysinfo.c

[tree-wide] finally take no_llseek out

2024-09-27 08:18:43 -07:00

text_amode31.S

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time.c

s390: Replace S390_lowcore by get_lowcore()

2024-06-18 17:01:33 +02:00

topology.c

s390/hiperdispatch: Introduce hiperdispatch

2024-08-29 22:56:35 +02:00

trace.c

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traps.c

s390/traps: Fix test_monitor_call() inline assembly

2025-03-13 13:01:58 +01:00

unwind_bc.c

s390/unwind: disable KMSAN checks

2024-07-03 19:30:25 -07:00

uprobes.c

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uv.c

s390/uv: convert gmap_destroy_page() from follow_page() to folio_walk

2024-09-01 20:26:01 -07:00

vdso.c

s390/vdso: Wire up getrandom() vdso implementation

2024-09-13 20:57:31 +02:00

vmcore_info.c

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vmlinux.lds.S

s390/fpu: Add fpc exception handler / remove fixup section again

2025-02-17 10:05:44 +01:00

vtime.c

s390/vtime: Remove duplicate get_lowcore() calls

2024-06-18 17:01:33 +02:00

wti.c

s390/wti: Add debugfs file to display missed grace periods per cpu

2024-08-29 22:56:35 +02:00