Richard Weinberger 4fdaa3d479 um: Implement probe_kernel_read() ...

commit f75b1b1bed upstream.

UML needs it's own probe_kernel_read() to handle kernel
mode faults correctly.
The implementation uses mincore() on the host side to detect
whether a page is owned by the UML kernel process.

This fixes also a possible crash when sysrq-t is used.
Starting with 3.10 sysrq-t calls probe_kernel_read() to
read details from the kernel workers. As kernel worker are
completely async pointers may turn NULL while reading them.

Signed-off-by: Richard Weinberger <richard@nod.at>
Cc: <stian@nixia.no>
Cc: <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2013-09-26 17:18:29 -07:00

..

drivers

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

skas

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

aio.c

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

elf_aux.c

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

execvp.c

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

file.c

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

helper.c

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

internal.h

um: pass siginfo to guest process

2012-08-02 00:49:17 +02:00

irq.c

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

main.c

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

Makefile

um: use the right ifdef around exports in user_syms.c

2012-03-25 00:29:55 +01:00

mem.c

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

process.c

um: Implement probe_kernel_read()

2013-09-26 17:18:29 -07:00

registers.c

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

sigio.c

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

signal.c

um: fix build failure due to mess-up of sig_info protorype

2013-03-11 10:08:03 +01:00

start_up.c

um: add missing declaration of 'getrlimit()' and friends

2013-03-11 10:08:03 +01:00

time.c

nohz: Rename CONFIG_NO_HZ to CONFIG_NO_HZ_COMMON

2013-04-03 13:56:03 +02:00

tty.c

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

umid.c

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

user_syms.c

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

util.c

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00