Sven Schnelle c49bfdfe53 parisc/entry: fix trace test in syscall exit path ... commit 3ec18fc783 upstream. commit 8779e05ba8 ("parisc: Fix ptrace check on syscall return") fixed testing of TI_FLAGS. This uncovered a bug in the test mask. syscall_restore_rfi is only used when the kernel needs to exit to usespace with single or block stepping and the recovery counter enabled. The test however used _TIF_SYSCALL_TRACE_MASK, which includes a lot of bits that shouldn't be tested here. Fix this by using TIF_SINGLESTEP and TIF_BLOCKSTEP directly. I encountered this bug by enabling syscall tracepoints. Both in qemu and on real hardware. As soon as i enabled the tracepoint (sys_exit_read, but i guess it doesn't really matter which one), i got random page faults in userspace almost immediately. Signed-off-by: Sven Schnelle <svens@stackframe.org> Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-11-21 13:46:36 +01:00
..
boot	vmlinux.lds.h: Split ELF_DETAILS from STABS_DEBUG	2020-09-01 09:50:35 +02:00
configs	parisc: disable CONFIG_IDE in defconfigs	2020-10-15 08:10:38 +02:00
include	parisc: Use absolute_pointer() to define PAGE0	2021-09-30 10:11:07 +02:00
kernel	parisc/entry: fix trace test in syscall exit path	2021-11-21 13:46:36 +01:00
lib	Revert "parisc: Add assembly implementations for memset, strlen, strcpy, strncpy and strcat"	2021-09-03 10:09:31 +02:00
math-emu	parisc: math-emu: Fix fall-through warnings	2021-10-27 09:56:46 +02:00
mm	parisc: fix warning in flush_tlb_all	2021-11-18 14:04:01 +01:00
oprofile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
defpalo.conf
install.sh	parisc: Install vmlinuz instead of zImage file	2020-10-15 08:10:39 +02:00
Kconfig	parisc: Enable -mlong-calls gcc option with CONFIG_COMPILE_TEST	2021-03-11 14:17:21 +01:00
Kconfig.debug	Kconfig: consolidate the "Kernel hacking" menu	2018-08-02 08:06:48 +09:00
Makefile	kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables	2020-06-11 20:14:41 +09:00
nm