Oleg Nesterov a893a84e87 mm_for_maps: simplify, use ptrace_may_access() ...

It would be nice to kill __ptrace_may_access(). It requires task_lock(),
but this lock is only needed to read mm->flags in the middle.

Convert mm_for_maps() to use ptrace_may_access(), this also simplifies
the code a little bit.

Also, we do not need to take ->mmap_sem in advance. In fact I think
mm_for_maps() should not play with ->mmap_sem at all, the caller should
take this lock.

With or without this patch, without ->cred_guard_mutex held we can race
with exec() and get the new ->mm but check old creds.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>

2009-06-25 00:20:58 +10:00

..

array.c

proc: avoid information leaks to non-privileged processes

2009-05-04 15:14:23 -07:00

base.c

mm_for_maps: simplify, use ptrace_may_access()

2009-06-25 00:20:58 +10:00

cmdline.c

proc: switch /proc/cmdline to seq_file

2008-10-23 14:29:04 +04:00

cpuinfo.c

proc: move /proc/cpuinfo code to fs/proc/cpuinfo.c

2008-10-23 15:05:11 +04:00

devices.c

proc: move /proc/devices code to fs/proc/devices.c

2008-10-23 15:02:18 +04:00

generic.c

proc 1/2: do PDE usecounting even for ->read_proc, ->write_proc

2009-03-31 01:14:27 +04:00

inode.c

proc 2/2: remove struct proc_dir_entry::owner

2009-03-31 01:14:44 +04:00

internal.h

Move junk from proc_fs.h to fs/proc/internal.h

2009-06-11 21:36:01 -04:00

interrupts.c

proc: move /proc/interrupts boilerplate code to fs/proc/interrupts.c

2008-10-23 15:15:46 +04:00

Kconfig

…

kcore.c

proc: move all /proc/kcore stuff to fs/proc/kcore.c

2008-10-23 18:32:38 +04:00

kmsg.c

proc: move /proc/kmsg creation to fs/proc/kmsg.c

2008-10-23 14:35:08 +04:00

loadavg.c

sched, timers: cleanup avenrun users

2009-05-15 15:32:45 +02:00

Makefile

proc: export statistics for softirq to /proc

2009-06-18 13:03:41 -07:00

meminfo.c

mm: remove CONFIG_UNEVICTABLE_LRU config option

2009-06-16 19:47:42 -07:00

mmu.c

…

nommu.c

trivial: fix typo "kernal" -> "kernel"

2009-03-30 15:21:57 +02:00

page.c

mm: remove CONFIG_UNEVICTABLE_LRU config option

2009-06-16 19:47:42 -07:00

proc_devtree.c

procfs: remove sparse errors in proc_devtree.c

2009-06-18 13:03:41 -07:00

proc_net.c

proc: stop using BKL

2009-01-05 12:27:44 +03:00

proc_sysctl.c

constify dentry_operations: procfs

2009-03-27 14:44:01 -04:00

proc_tty.c

proc tty: remove struct tty_operations::read_proc

2009-04-01 08:59:10 -07:00

root.c

Convert obvious places to deactivate_locked_super()

2009-05-09 10:49:40 -04:00

softirqs.c

proc: export statistics for softirq to /proc

2009-06-18 13:03:41 -07:00

stat.c

proc: export statistics for softirq to /proc

2009-06-18 13:03:41 -07:00

task_mmu.c

pagemap: require aligned-length, non-null reads of /proc/pid/pagemap

2009-05-02 15:36:09 -07:00

task_nommu.c

nommu: fix typo vma->pg_off to vma->vm_pgoff

2009-04-08 10:21:44 -07:00

uptime.c

Revert "proc: revert /proc/uptime to ->read_proc hook"

2009-03-31 01:14:58 +04:00

version.c

proc: switch /proc/version to seq_file

2008-10-23 14:19:58 +04:00

vmcore.c

proc: vmcore - use kzalloc in get_new_element()

2009-06-18 13:03:41 -07:00