Helge Deller 59a783dbc0 parisc: Avoid kernel panic triggered by invalid kprobe ... When running gdb I was able to trigger this kernel panic: Kernel Fault: Code=26 (Data memory access rights trap) at addr 0000000000000060 CPU: 0 PID: 1401 Comm: gdb-crash Not tainted 5.2.0-rc7-64bit+ #1053 YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI PSW: 00001000000001000000000000001111 Not tainted r00-03 000000000804000f 0000000040dee1a0 0000000040c78cf0 00000000b8d50160 r04-07 0000000040d2b1a0 000000004360a098 00000000bbbe87b8 0000000000000003 r08-11 00000000fac20a70 00000000fac24160 00000000fac1bbe0 0000000000000000 r12-15 00000000fabfb79a 00000000fac244a4 0000000000010000 0000000000000001 r16-19 00000000bbbe87b8 00000000f8f02910 0000000000010034 0000000000000000 r20-23 00000000fac24630 00000000fac24630 000000006474e552 00000000fac1aa52 r24-27 0000000000000028 00000000bbbe87b8 00000000bbbe87b8 0000000040d2b1a0 r28-31 0000000000000000 00000000b8d501c0 00000000b8d501f0 0000000003424000 sr00-03 0000000000423000 0000000000000000 0000000000000000 0000000000423000 sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000 IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040c78cf0 0000000040c78cf4 IIR: 539f00c0 ISR: 0000000000000000 IOR: 0000000000000060 CPU: 0 CR30: 00000000b8d50000 CR31: 00000000d22345e2 ORIG_R28: 0000000040250798 IAOQ[0]: parisc_kprobe_ss_handler+0x58/0x170 IAOQ[1]: parisc_kprobe_ss_handler+0x5c/0x170 RP(r2): parisc_kprobe_ss_handler+0x58/0x170 Backtrace: [<0000000040206ff8>] handle_interruption+0x178/0xbb8 Kernel panic - not syncing: Kernel Fault Avoid this panic by checking the return value of kprobe_running() and skip kprobe if none is currently active. Cc: <stable@vger.kernel.org> # v5.2 Acked-by: Sven Schnelle <svens@stackframe.org> Tested-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Signed-off-by: Helge Deller <deller@gmx.de>		2019-07-17 23:11:28 +02:00
..
syscalls	arch: mark syscall number 435 reserved for clone3	2019-07-15 00:39:33 +02:00
.gitignore	parisc: add arch/parisc/kernel/.gitignore	2008-10-10 16:32:28 +00:00
alternative.c	parisc: Fix crash due alternative coding for NP iopdir_fdc bit	2019-06-06 14:25:22 +02:00
asm-offsets.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
audit.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
cache.c	parisc: Use __ro_after_init in cache.c	2019-05-10 21:00:44 +02:00
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
drivers.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
entry.S	parisc: add dynamic ftrace	2019-06-08 12:56:29 +02:00
firmware.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
ftrace.c	parisc: add dynamic ftrace	2019-06-08 12:56:29 +02:00
hardware.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153	2019-05-30 11:26:32 -07:00
head.S	parisc: Use __ro_after_init in head.S	2019-05-10 21:00:44 +02:00
hpmc.S	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 150	2019-05-30 11:25:19 -07:00
inventory.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
irq.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153	2019-05-30 11:26:32 -07:00
jump_label.c	parisc: Add static branch and JUMP_LABEL feature	2019-05-06 00:10:03 +02:00
kgdb.c	parisc: add KGDB support	2019-05-03 23:47:38 +02:00
kprobes.c	parisc: Avoid kernel panic triggered by invalid kprobe	2019-07-17 23:11:28 +02:00
Makefile	parisc: add dynamic ftrace	2019-06-08 12:56:29 +02:00
module.c	Merge branch 'parisc-5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux	2019-07-09 12:08:15 -07:00
module.lds	parisc: add dynamic ftrace	2019-06-08 12:56:29 +02:00
pa7300lc.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
pacache.S	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 150	2019-05-30 11:25:19 -07:00
parisc_ksyms.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
patch.c	parisc: add spinlock to patch function	2019-06-08 12:56:26 +02:00
pci-dma.c	dma-direct: handle DMA_ATTR_NON_CONSISTENT in common code	2019-06-25 14:27:58 +02:00
pci.c	parisc: Use __ro_after_init in pci.c	2019-05-10 21:00:44 +02:00
pdc_chassis.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333	2019-06-05 17:37:06 +02:00
pdc_cons.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
pdt.c	mm/memory_failure: Remove unused trapno from memory_failure	2018-01-23 12:17:42 -06:00
perf_asm.S	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
perf_images.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
perf.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153	2019-05-30 11:26:32 -07:00
process.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
processor.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153	2019-05-30 11:26:32 -07:00
ptrace.c	parisc: Ensure userspace privilege for ptraced processes in regset functions	2019-07-17 23:11:27 +02:00
real2.S	parisc: Fix and improve kernel stack unwinding	2018-08-13 09:54:17 +02:00
setup.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153	2019-05-30 11:26:32 -07:00
signal32.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
signal32.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
signal.c	signal: Remove task parameter from force_sig	2019-05-27 09:36:28 -05:00
smp.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
stacktrace.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
sys_parisc32.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
sys_parisc.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
syscall.S	parisc: Drop LDCW barrier in CAS code when running UP	2019-05-10 21:00:24 +02:00
time.c	parisc: Use __ro_after_init in time.c	2019-05-10 21:00:45 +02:00
topology.c	parisc: Add CPU topology support	2017-11-17 15:27:22 +01:00
traps.c	signal: Remove the task parameter from force_sig_fault	2019-05-29 09:31:43 -05:00
unaligned.c	Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2019-07-08 21:48:15 -07:00
unwind.c	parisc: Use __ro_after_init in unwind.c	2019-05-10 21:00:45 +02:00
vmlinux.lds.S	parisc: add dynamic ftrace	2019-06-08 12:56:29 +02:00