Oleg Nesterov 2e2ba22ea4 signals: check_kill_permission: check session under tasklist_lock ...

This wasn't documented, but as Atsushi Tsuji pointed out
check_kill_permission() needs tasklist_lock for task_session_nr().  I missed
this fact when removed tasklist from the callers.

Change check_kill_permission() to take tasklist_lock for the SIGCONT case.
Re-order security checks so that we take tasklist_lock only if/when it is
actually needed.  This is a minimal fix for now, tasklist will be removed
later.

Also change the code to use task_session() instead of task_session_nr().

Also, remove the SIGCONT check from cap_task_kill(), it is bogus (and the
whole function is bogus.  Serge, Eric, why it is still alive?).

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Acked-by: Atsushi Tsuji <a-tsuji@bk.jp.nec.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2008-04-30 08:29:37 -07:00

..

irq

kernel: explicitly include required header files under kernel/

2008-04-29 08:06:04 -07:00

power

PM/gxfb: add hook to PM console layer that allows disabling of suspend VT switch

2008-04-28 08:58:36 -07:00

time

kernel: use non-racy method for proc entries creation

2008-04-29 08:06:22 -07:00

.gitignore

Update kernel/.gitignore with new auto-generated files

2008-02-09 23:27:01 -08:00

acct.c

bsd_acct: using task_struct->tgid is not right in pid-namespaces

2008-03-24 19:22:20 -07:00

audit_tree.c

Introduce path_put()

2008-02-14 21:13:33 -08:00

audit.c

[patch 2/2] Use find_task_by_vpid in audit code

2008-04-28 06:28:30 -04:00

audit.h

[PATCH 1/2] audit: move extern declarations to audit.h

2008-04-28 06:28:04 -04:00

auditfilter.c

Merge branch 'audit.b50' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current

2008-04-29 11:41:22 -07:00

auditsc.c

[PATCH] new predicate - AUDIT_FILETYPE

2008-04-28 06:28:37 -04:00

backtracetest.c

x86: add a simple backtrace test module

2008-01-30 13:33:08 +01:00

bounds.c

Add kbuild.h that contains common definitions for kbuild users

2008-04-29 08:06:29 -07:00

capability.c

Add 64-bit capability support to the kernel

2008-02-05 09:44:20 -08:00

cgroup_debug.c

CGroup API files: move "releasable" to cgroup_debug subsystem

2008-04-29 08:06:09 -07:00

cgroup.c

cgroups: add an owner to the mm_struct

2008-04-29 08:06:10 -07:00

compat.c

generic: reduce stack pressure in sched_affinity

2008-04-19 19:44:59 +02:00

configs.c

kernel: use non-racy method for proc entries creation

2008-04-29 08:06:22 -07:00

cpu.c

simplify cpu_hotplug_begin()/put_online_cpus()

2008-04-29 08:06:11 -07:00

cpuset.c

Cpuset hardwall flag: add a mem_hardwall flag to cpusets

2008-04-29 08:06:11 -07:00

delayacct.c

…

dma.c

kernel: use non-racy method for proc entries creation

2008-04-29 08:06:22 -07:00

exec_domain.c

…

exit.c

signals: do_group_exit(): use signal_group_exit() more consistently

2008-04-30 08:29:33 -07:00

extable.c

module: Don't report discarded init pages as kernel text.

2008-01-29 17:13:18 +11:00

fork.c

signals: microoptimize the usage of ->curr_target

2008-04-30 08:29:35 -07:00

futex_compat.c

futex_compat __user annotation

2008-03-30 14:18:41 -07:00

futex.c

NULL noise: fs/*, mm/*, kernel/*

2008-03-30 14:18:41 -07:00

hrtimer.c

hrtimer: raise softirq unlocked to avoid circular lock dependency

2008-04-28 22:22:21 +02:00

itimer.c

ITIMER_REAL: convert to use struct pid

2008-02-08 09:22:29 -08:00

kallsyms.c

kernel: use non-racy method for proc entries creation

2008-04-29 08:06:22 -07:00

Kconfig.hz

sched: high-res preemption tick

2008-01-25 21:08:29 +01:00

Kconfig.preempt

rcu: move PREEMPT_RCU config option back under PREEMPT

2008-03-10 18:01:20 -07:00

kexec.c

vmcoreinfo: add page flags values

2008-04-28 08:58:23 -07:00

kfifo.c

…

kgdb.c

kgdb: always use icache flush for sw breakpoints

2008-04-17 20:05:43 +02:00

kmod.c

generic: use new set_cpus_allowed_ptr function

2008-04-19 19:44:58 +02:00

kprobes.c

kprobes: add (un)register_jprobes for batch registration

2008-04-28 08:58:32 -07:00

ksysfs.c

Kobject: convert remaining kobject_unregister() to kobject_put()

2008-01-24 20:40:40 -08:00

kthread.c

kthread: call wake_up_process() without the lock being held

2008-04-29 08:06:04 -07:00

latencytop.c

kernel: use non-racy method for proc entries creation

2008-04-29 08:06:22 -07:00

lockdep_internals.h

…

lockdep_proc.c

kernel: use non-racy method for proc entries creation

2008-04-29 08:06:22 -07:00

lockdep.c

Subject: lockdep: include all lock classes in all_lock_classes

2008-02-25 23:03:02 +01:00

Makefile

sysctl: allow embedded targets to disable sysctl_check.c

2008-04-29 08:06:22 -07:00

marker.c

kernel: explicitly include required header files under kernel/

2008-04-29 08:06:04 -07:00

module.c

kernel: Remove unnecessary inclusions of asm/semaphore.h

2008-04-18 22:17:04 -04:00

mutex-debug.c

kernel: remove fastcall in kernel/*

2008-02-08 09:22:31 -08:00

mutex-debug.h

…

mutex.c

kernel: remove fastcall in kernel/*

2008-02-08 09:22:31 -08:00

mutex.h

…

notifier.c

ipc: re-enable msgmni automatic recomputing msgmni if set to negative

2008-04-29 08:06:13 -07:00

ns_cgroup.c

cgroups: kernel/ns_cgroup.c should #include <linux/nsproxy.h>

2008-04-29 08:06:07 -07:00

nsproxy.c

ipc: sysvsem: refuse clone(CLONE_SYSVSEM|CLONE_NEWIPC)

2008-04-29 08:06:14 -07:00

panic.c

Taint kernel after WARN_ON(condition)

2008-04-29 08:05:59 -07:00

params.c

Add new string functions strict_strto* and convert kernel params to use them

2008-02-08 09:22:41 -08:00

pid_namespace.c

kernel: fix integer as NULL pointer warnings

2008-04-28 17:29:18 -07:00

pid.c

kernel: remove fastcall in kernel/*

2008-02-08 09:22:31 -08:00

pm_qos_params.c

pm qos infrastructure and interface

2008-02-05 09:44:22 -08:00

posix-cpu-timers.c

posix-timers: fix shadowed variables

2008-04-17 12:22:30 +02:00

posix-timers.c

signals: join send_sigqueue() with send_group_sigqueue()

2008-04-30 08:29:36 -07:00

printk.c

isolate ratelimit from printk.c for other use

2008-04-29 08:06:06 -07:00

profile.c

kernel: use non-racy method for proc entries creation

2008-04-29 08:06:22 -07:00

ptrace.c

ptrace: conditionalize compat_ptrace_request

2008-04-28 14:14:36 -07:00

rcuclassic.c

Preempt-RCU: implementation

2008-01-25 21:08:24 +01:00

rcupdate.c

rcupdate: fix comment

2008-02-13 16:21:18 -08:00

rcupreempt_trace.c

Preempt-RCU: implementation

2008-01-25 21:08:24 +01:00

rcupreempt.c

generic: reduce stack pressure in sched_affinity

2008-04-19 19:44:59 +02:00

rcutorture.c

kernel: explicitly include required header files under kernel/

2008-04-29 08:06:04 -07:00

relay.c

Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

2008-04-29 08:18:03 -07:00

res_counter.c

memcgroup: add the max_usage member on the res_counter

2008-04-29 08:06:10 -07:00

resource.c

kernel: use non-racy method for proc entries creation

2008-04-29 08:06:22 -07:00

rtmutex_common.h

Don't operate with pid_t in rtmutex tester

2008-02-08 09:22:41 -08:00

rtmutex-debug.c

Don't operate with pid_t in rtmutex tester

2008-02-08 09:22:41 -08:00

rtmutex-debug.h

…

rtmutex-tester.c

Driver core: change sysdev classes to use dynamic kobject names

2008-01-24 20:40:40 -08:00

rtmutex.c

hrtimer: more hrtimer_init_sleeper() fallout.

2008-02-13 15:45:36 +01:00

rtmutex.h

…

rwsem.c

sched: mark rwsem functions as __sched for wchan/profiling

2007-12-18 15:21:13 +01:00

sched_debug.c

kernel: use non-racy method for proc entries creation

2008-04-29 08:06:22 -07:00

sched_fair.c

sched: debug: show a weight tree

2008-04-19 19:45:00 +02:00

sched_features.h

sched: /debug/sched_features

2008-04-19 19:45:00 +02:00

sched_idletask.c

sched: high-res preemption tick

2008-01-25 21:08:29 +01:00

sched_rt.c

sched: rt-group: optimize dequeue_rt_stack

2008-04-19 19:45:00 +02:00

sched_stats.h

cpumask: use new cpus_scnprintf function

2008-04-19 19:44:59 +02:00

sched.c

CGroups _s64 files: use read_s64/write_s64 in CFS cgroup for rt_runtime file

2008-04-29 08:06:09 -07:00

seccomp.c

…

semaphore.c

Improve semaphore documentation

2008-04-17 10:43:01 -04:00

signal.c

signals: check_kill_permission: check session under tasklist_lock

2008-04-30 08:29:37 -07:00

softirq.c

tasklets: execute tasklets in the same order they were queued

2008-04-19 19:44:58 +02:00

softlockup.c

softlockup: fix task state setting

2008-02-29 18:46:53 +01:00

spinlock.c

spinlock: lockbreak cleanup

2008-01-30 13:31:20 +01:00

srcu.c

make srcu_readers_active() static

2008-02-06 10:41:02 -08:00

stacktrace.c

…

stop_machine.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/juhl/trivial

2008-04-21 16:36:46 -07:00

sys_ni.c

timerfd: new timerfd API

2008-02-05 09:44:07 -08:00

sys.c

k_getrusage: don't take rcu_read_lock()

2008-04-30 08:29:34 -07:00

sysctl_check.c

constify tables in kernel/sysctl_check.c

2008-02-08 09:22:31 -08:00

sysctl.c

sysctl: add the ->permissions callback on the ctl_table_root

2008-04-29 08:06:23 -07:00

taskstats.c

kernel/taskstats.c: fix bogus nlmsg_free()

2007-11-14 18:45:44 -08:00

test_kprobes.c

kprobes: kretprobe user entry-handler

2008-02-06 10:41:11 -08:00

time.c

kernel: explicitly include required header files under kernel/

2008-04-29 08:06:04 -07:00

timeconst.pl

timeconst.pl: correct reversal of USEC_TO_HZ and HZ_TO_USEC

2008-02-12 14:29:26 -08:00

timer.c

timers: simplify lockdep handling

2008-04-17 12:22:31 +02:00

tsacct.c

…

uid16.c

asmlinkage_protect replaces prevent_tail_call

2008-04-10 17:28:26 -07:00

user_namespace.c

eCryptfs: make key module subsystem respect namespaces

2008-04-29 08:06:07 -07:00

user.c

keys: don't generate user and user session keyrings unless they're accessed

2008-04-29 08:06:17 -07:00

utsname_sysctl.c

Isolate the UTS namespace's domainname and hostname back

2007-11-29 09:24:53 -08:00

utsname.c

kernel: explicitly include required header files under kernel/

2008-04-29 08:06:04 -07:00

wait.c

kernel: remove fastcall in kernel/*

2008-02-08 09:22:31 -08:00

workqueue.c

cleanup_workqueue_thread: remove the unneeded "cpu" parameter

2008-04-29 08:06:11 -07:00