AuxXxilium/linux_dsm_epyc7002
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d3023897b4
linux_dsm_epyc7002/arch/sh/kernel
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Michael Karcher d3023897b4 arch/sh: Check for kprobe trap number before trying to handle a kprobe trap 
The DIE_TRAP notifier chain is run both for kprobe traps and for BUG/WARN
traps. The kprobe code assumes to be only called for
BREAKPOINT_INSTRUCTION, and concludes to have hit a concurrently removed
kprobe if it finds anything else at the faulting locations. This includes
TRAPA_BUG_OPCODE used for BUG and WARN.

The consequence is that kprobe_handler returns 1. This makes
kprobe_exceptions_notify return NOTIFY_STOP, and prevents handling the BUG
statement. This also prevents moving $pc away from the trap instruction,
so the system locks up in an endless loop

Signed-off-by: Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de>
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2019-06-26 19:11:13 +09:00
..
cpu sh: cpu: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
syscalls uapi: Wire up the mount API syscalls on non-x86 arches [ver #2] 2019-05-16 12:23:45 -04:00
vsyscall sh: vsyscall: drop unnecessary cc-ldoption 2019-05-18 11:29:01 +09:00
.gitignore sh: Add an arch/sh/kernel/.gitignore 2008-07-29 08:29:32 +09:00
asm-offsets.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 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
debugtraps.S sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
disassemble.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
dma-coherent.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
dumpstack.c Tracing changes for v4.21: 2018-12-31 11:46:59 -08:00
dwarf.c It appears that the zero-day bot did find a bug in my sh build. 2019-01-05 14:08:00 -08:00
entry-common.S sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
ftrace.c sh/function_graph: Simplify with function_graph_enter() 2018-11-27 20:31:39 -05:00
head_32.S sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
head_64.S sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
hw_breakpoint.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
idle.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
io_trapped.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
io.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
iomap.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
ioport.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
irq_32.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
irq_64.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
irq.c softirq/sh: Use nmi_count() on /proc/interrupts print out 2018-05-14 11:25:27 +02:00
kdebugfs.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kgdb.c kgdb patches for 4.20-rc1 2019-01-01 15:38:14 -08:00
kprobes.c arch/sh: Check for kprobe trap number before trying to handle a kprobe trap 2019-06-26 19:11:13 +09:00
machine_kexec.c memblock: drop __memblock_alloc_base() 2019-03-12 10:04:01 -07:00
machvec.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
Makefile sh: use generic dma_noncoherent_ops 2018-08-02 13:54:20 +02:00
module.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
nmi_debug.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
perf_callchain.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
perf_event.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
process_32.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
process_64.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
process.c Kbuild: rename CC_STACKPROTECTOR[_STRONG] config variables 2018-06-14 12:21:18 +09:00
ptrace_32.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
ptrace_64.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
ptrace.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
reboot.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
relocate_kernel.S sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
return_address.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
setup.c vfs: Suppress MS_* flag defs within the kernel unless explicitly enabled 2018-12-20 16:32:56 +00:00
sh_bios.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
sh_ksyms_32.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sh_ksyms_64.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
signal_32.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
signal_64.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
smp.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
stacktrace.c sh/stacktrace: Remove the pointless ULONG_MAX marker 2019-04-14 19:58:28 +02:00
swsusp.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
sys_sh32.c mm: add ksys_fadvise64_64() helper; remove in-kernel call to sys_fadvise64_64() 2018-04-02 20:16:10 +02:00
sys_sh.c mm: add ksys_mmap_pgoff() helper; remove in-kernel calls to sys_mmap_pgoff() 2018-04-02 20:16:11 +02:00
syscalls_32.S sh: remove nargs from __SYSCALL 2019-03-05 21:07:13 -08:00
syscalls_64.S sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
time.c Merge branch 'akpm' (patches from Andrew) 2018-12-28 16:55:46 -08:00
topology.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
traps_32.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
traps_64.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
traps.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
unwinder.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
vmlinux.lds.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00