Oleg Nesterov f01b1b0baa [PATCH] ITIMER_REAL: fix possible deadlock and race ...

As Steven Rostedt pointed out, there are 2 problems with ITIMER_REAL
timers.

1. do_setitimer() does not call del_timer_sync() in case
   when the timer is not pending (it_real_value() returns 0).
   This is wrong, the timer may still be running, and it can
   rearm itself.

2. It calls del_timer_sync() with tsk->sighand->siglock held.
   This is deadlockable, because timer's handler needs this
   lock too.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2005-06-28 21:20:30 -07:00

..

irq

[PATCH] Using msleep() instead of HZ

2005-06-28 21:20:29 -07:00

power

Merge Christoph's freeze cleanup patch

2005-06-25 17:16:53 -07:00

acct.c

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audit.c

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auditsc.c

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capability.c

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compat.c

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configs.c

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cpu.c

[PATCH] i386 CPU hotplug

2005-06-25 16:24:29 -07:00

cpuset.c

[PATCH] Dynamic sched domains: cpuset changes

2005-06-25 16:24:45 -07:00

crash_dump.c

[PATCH] kdump: Access dump file in elf format (/proc/vmcore)

2005-06-25 16:24:53 -07:00

dma.c

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exec_domain.c

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exit.c

[PATCH] Update cfq io scheduler to time sliced design

2005-06-27 14:33:29 -07:00

extable.c

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fork.c

[PATCH] Update cfq io scheduler to time sliced design

2005-06-27 14:33:29 -07:00

futex.c

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intermodule.c

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itimer.c

[PATCH] ITIMER_REAL: fix possible deadlock and race

2005-06-28 21:20:30 -07:00

kallsyms.c

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Kconfig.hz

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Kconfig.preempt

[PATCH] sched: voluntary kernel preemption

2005-06-25 16:24:45 -07:00

kexec.c

[PATCH] kexec: fix sparse warnings

2005-06-28 14:53:40 -07:00

kfifo.c

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kmod.c

[PATCH] Keys: Pass session keyring to call_usermodehelper()

2005-06-24 00:05:18 -07:00

kprobes.c

[PATCH] Return probe redesign: architecture independent changes

2005-06-27 15:23:52 -07:00

ksysfs.c

[PATCH] Kdump: Export crash notes section address through sysfs

2005-06-25 16:24:51 -07:00

kthread.c

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Makefile

[PATCH] kdump: Routines for copying dump pages

2005-06-25 16:24:53 -07:00

module.c

[PATCH] make various thing static

2005-06-24 00:06:43 -07:00

panic.c

[PATCH] kdump: Use real pt_regs from exception

2005-06-25 16:24:54 -07:00

params.c

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pid.c

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posix-cpu-timers.c

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posix-timers.c

[PATCH] posix-timers: use try_to_del_timer_sync()

2005-06-23 09:45:17 -07:00

printk.c

[PATCH] CPU hotplug printk fix

2005-06-25 16:24:34 -07:00

profile.c

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ptrace.c

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rcupdate.c

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resource.c

[PATCH] Use ALIGN to remove duplicate code

2005-06-25 16:25:02 -07:00

sched.c

[PATCH] Tweak idle thread setup semantics

2005-06-28 14:56:51 -07:00

seccomp.c

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signal.c

[PATCH] Cleanup patch for process freezing

2005-06-25 17:10:13 -07:00

softirq.c

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spinlock.c

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stop_machine.c

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sys_ni.c

[PATCH] kexec: add kexec syscalls

2005-06-25 16:24:48 -07:00

sys.c

[PATCH] kexec: add kexec syscalls

2005-06-25 16:24:48 -07:00

sysctl.c

[PATCH] remove redundant NULL check before before kfree() in kernel/sysctl.c

2005-06-25 16:24:59 -07:00

time.c

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timer.c

[PATCH] kernel/timer: fix msleep_interruptible() comment

2005-06-25 16:24:58 -07:00

uid16.c

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user.c

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wait.c

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workqueue.c

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