Oleg Nesterov a98fdcef94 fix the "remove task_ppid_nr_ns" commit ...

Commit 84427eaef1fb91704c7112bdb598c810003b99f3 (remove task_ppid_nr_ns)
moved the task_tgid_nr_ns(task->real_parent) outside of lock_task_sighand().
This is wrong, ->real_parent could be freed/reused.

Both ->parent/real_parent point to nothing after __exit_signal() because
we remove the child from ->children list, and thus the child can't be
reparented when its parent exits.

rcu_read_lock() protects ->parent/real_parent, but _only_ if we know it was
valid before we take rcu lock.

Revert this part of the patch.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2008-01-14 13:23:00 -08:00

..

array.c

fix the "remove task_ppid_nr_ns" commit

2008-01-14 13:23:00 -08:00

base.c

restrict reading from /proc/<pid>/maps to those who share ->mm or can ptrace pid

2008-01-02 13:13:27 -08:00

generic.c

proc: remove/Fix proc generic d_revalidate

2007-12-10 19:43:55 -08:00

inode-alloc.txt

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

inode.c

proc: fix proc_dir_entry refcounting

2007-12-05 09:21:20 -08:00

internal.h

restrict reading from /proc/<pid>/maps to those who share ->mm or can ptrace pid

2008-01-02 13:13:27 -08:00

kcore.c

[PATCH] elf: fix kcore note size calculation

2006-12-07 08:39:38 -08:00

kmsg.c

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

Makefile

[NET]: Make /proc/net per network namespace

2007-10-10 16:49:06 -07:00

mmu.c

fs/proc/mmu.c: headers butchery

2007-10-17 08:42:48 -07:00

nommu.c

[PATCH] mark struct file_operations const 6

2007-02-12 09:48:45 -08:00

proc_devtree.c

[POWERPC] Make struct property's value a void *

2007-04-13 03:55:18 +10:00

proc_misc.c

Unify /proc/slabinfo configuration

2008-01-02 13:04:48 -08:00

proc_net.c

[NETNS]: Fix /proc/net breakage

2007-12-02 00:33:17 +11:00

proc_sysctl.c

Fix pointer mismatches in proc_sysctl.c

2007-10-25 15:16:49 -07:00

proc_tty.c

Make /proc/tty/drivers use seq_list_xxx helpers

2007-07-16 09:05:42 -07:00

root.c

proc: fix proc_dir_entry refcounting

2007-12-05 09:21:20 -08:00

task_mmu.c

restrict reading from /proc/<pid>/maps to those who share ->mm or can ptrace pid

2008-01-02 13:13:27 -08:00

task_nommu.c

restrict reading from /proc/<pid>/maps to those who share ->mm or can ptrace pid

2008-01-02 13:13:27 -08:00

vmcore.c

[PATCH] i386: Allow i386 crash kernels to handle x86_64 dumps

2007-05-02 19:27:09 +02:00