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1ee1184485
linux/kernel
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Oleg Nesterov 1ee1184485 ptrace_untrace: fix the SIGNAL_STOP_STOPPED check 
This bug is ancient too. ptrace_untrace() must not resume the task
if the group stop in progress, we should set TASK_STOPPED instead.

Unfortunately, we still have problems here:

	- if the process/thread was traced, SIGNAL_STOP_STOPPED
	  does not necessary means this thread group is stopped.

	- ptrace breaks the bookkeeping of ->group_stop_count.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02 19:05:00 -07:00
..
irq PM: Introduce functions for suspending and resuming device interrupts 2009-03-30 21:46:54 +02:00
power pm: rework includes, remove arch ifdefs 2009-04-01 08:59:16 -07:00
time Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-03-26 16:05:42 -07:00
trace Merge commit 'origin/master' into next 2009-03-11 17:10:07 +11:00
.gitignore
acct.c
async.c async: remove the temporary (2.6.29) "async is off by default" code 2009-03-28 13:05:30 -07:00
audit_tree.c
audit.c
audit.h
auditfilter.c
auditsc.c
backtracetest.c
bounds.c
capability.c
cgroup_debug.c debug cgroup: remove unneeded cgroup_lock 2009-04-02 19:04:54 -07:00
cgroup_freezer.c
cgroup.c memcg: fix OOM killer under memcg 2009-04-02 19:04:55 -07:00
compat.c
configs.c
cpu.c cpumask: use set_cpu_active in init/main.c 2009-03-30 22:05:12 +10:30
cpuset.c cpusets: prevent PF_THREAD_BOUND tasks from attaching to non-root cpusets 2009-04-02 19:04:57 -07:00
cred-internals.h
cred.c
delayacct.c
dma-coherent.c dma-coherent: Restore dma_alloc_from_coherent() large alloc fall back policy. 2009-01-21 18:51:53 +09:00
dma.c
exec_domain.c
exit.c forget_original_parent: do not abuse child->ptrace_entry 2009-04-02 19:05:00 -07:00
extable.c
fork.c signals: protect cinit from blocked fatal signals 2009-04-02 19:04:58 -07:00
freezer.c
futex_compat.c
futex.c futex: remove the pointer math from double_unlock_hb, fix 2009-03-13 10:32:07 +01:00
hrtimer.c hrtimer: prevent negative expiry value after clock_was_set() 2009-01-30 22:35:34 +01:00
itimer.c timers: split process wide cpu clocks/timers 2009-02-05 13:04:33 +01:00
kallsyms.c
Kconfig.freezer
Kconfig.hz
Kconfig.preempt
kexec.c kexec: Change kexec jump code ordering 2009-03-30 21:46:55 +02:00
kfifo.c
kgdb.c
kmod.c cpumask: remove dangerous CPU_MASK_ALL_PTR, &CPU_MASK_ALL 2009-03-30 22:05:11 +10:30
kprobes.c
ksysfs.c
kthread.c cpumask: remove dangerous CPU_MASK_ALL_PTR, &CPU_MASK_ALL 2009-03-30 22:05:11 +10:30
latencytop.c sched, latencytop: incorporate review feedback from Andrew Morton 2009-02-11 10:18:04 +01:00
lockdep_internals.h lockdep: get_user_chars() redo 2009-02-14 23:28:22 +01:00
lockdep_proc.c lockstat: warn about disabled lock debugging 2009-02-14 23:28:28 +01:00
lockdep_states.h lockdep: move state bit definitions around 2009-02-14 23:27:59 +01:00
lockdep.c lockdep: fix deadlock in lockdep_trace_alloc 2009-03-30 23:19:24 +02:00
Makefile PM: fix build for CONFIG_PM unset 2009-02-21 14:17:17 -08:00
marker.c
module.c Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2 2009-03-27 17:28:43 +01:00
mutex-debug.c
mutex-debug.h
mutex.c
mutex.h
notifier.c
ns_cgroup.c cgroups: relax ns_can_attach checks to allow attaching to grandchild cgroups 2009-04-02 19:04:53 -07:00
nsproxy.c
panic.c stackprotector: update make rules 2009-02-10 00:41:54 +01:00
params.c
pid_namespace.c signals: zap_pid_ns_process() should use force_sig() 2009-04-02 19:04:58 -07:00
pid.c
pm_qos_params.c
posix-cpu-timers.c posix timers: fix RLIMIT_CPU && fork() 2009-03-23 20:43:35 +01:00
posix-timers.c
printk.c PM: Fix suspend_console and resume_console to use only one semaphore 2009-02-21 14:17:18 -08:00
profile.c profiling: fix broken profiling regression 2009-02-10 00:50:37 +01:00
ptrace.c ptrace_untrace: fix the SIGNAL_STOP_STOPPED check 2009-04-02 19:05:00 -07:00
rcuclassic.c rcu: Teach RCU that idle task is not quiscent state at boot 2009-02-26 04:08:14 +01:00
rcupdate.c rcu: Teach RCU that idle task is not quiscent state at boot 2009-02-26 04:08:14 +01:00
rcupreempt_trace.c
rcupreempt.c rcu: Teach RCU that idle task is not quiscent state at boot 2009-02-26 04:08:14 +01:00
rcutorture.c cpumask: convert rcutorture.c 2009-03-30 22:05:16 +10:30
rcutree_trace.c
rcutree.c rcu: Teach RCU that idle task is not quiscent state at boot 2009-02-26 04:08:14 +01:00
relay.c timers: add mod_timer_pending() 2009-02-18 19:26:33 +01:00
res_counter.c
resource.c
rtmutex_common.h
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c
rtmutex.c
rtmutex.h
rwsem.c
sched_clock.c sched_clock: cleanups 2009-02-26 21:56:07 +01:00
sched_cpupri.c
sched_cpupri.h cpumask: remove cpumask_t from core 2009-03-30 22:05:17 +10:30
sched_debug.c sched: remove unused fields from struct rq 2009-03-24 23:16:51 +01:00
sched_fair.c Merge branch 'sched/urgent'; commit 'v2.6.29-rc5' into sched/core 2009-02-15 21:15:16 +01:00
sched_features.h Merge branch 'locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-03-30 17:17:35 -07:00
sched_idletask.c
sched_rt.c Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2 2009-03-27 17:28:43 +01:00
sched_stats.h sched: remove unused fields from struct rq 2009-03-24 23:16:51 +01:00
sched.c epoll keyed wakeups: add __wake_up_locked_key() and __wake_up_sync_key() 2009-04-01 08:59:20 -07:00
seccomp.c x86-64: seccomp: fix 32/64 syscall hole 2009-03-02 15:41:30 -08:00
semaphore.c
signal.c signals: SI_USER: Masquerade si_pid when crossing pid ns boundary 2009-04-02 19:04:58 -07:00
smp.c generic-ipi: use per cpu data for single cpu ipi calls 2009-01-30 18:31:08 +01:00
softirq.c Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2 2009-03-27 17:28:43 +01:00
softlockup.c
spinlock.c
srcu.c
stacktrace.c
stop_machine.c cpumask: remove cpumask_t from core 2009-03-30 22:05:17 +10:30
sys_ni.c
sys.c sched: don't allow setuid to succeed if the user does not have rt bandwidth 2009-02-27 11:11:53 +01:00
sysctl_check.c net: add ARP notify option for devices 2009-02-01 01:04:33 -08:00
sysctl.c mm: fix proc_dointvec_userhz_jiffies "breakage" 2009-04-01 08:59:13 -07:00
taskstats.c
test_kprobes.c
time.c
timeconst.pl
timer.c Merge branch 'locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-03-30 17:17:35 -07:00
tracepoint.c
tsacct.c Fix fixpoint divide exception in acct_update_integrals 2009-03-09 08:13:35 -07:00
uid16.c
up.c
user_namespace.c Fix recursive lock in free_uid()/free_user_ns() 2009-02-27 16:26:21 -08:00
user.c Merge branch 'master' into next 2009-03-24 10:52:46 +11:00
utsname_sysctl.c
utsname.c
wait.c wait: prevent exclusive waiter starvation 2009-02-05 12:56:48 -08:00
workqueue.c cpumask: use new cpumask_ functions in core code. 2009-03-30 22:05:16 +10:30