Peter Zijlstra 42eb088ed2 sched: Avoid NULL dereference on sd_busy ...

Commit 37dc6b50cee9 ("sched: Remove unnecessary iteration over sched
domains to update nr_busy_cpus") forgot to clear 'sd_busy' under some
conditions leading to a possible NULL deref in set_cpu_sd_state_idle().

Reported-by: Anton Blanchard <anton@samba.org>
Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131118113701.GF3866@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2013-11-19 17:01:16 +01:00

..

cpu

sched: Add NEED_RESCHED to the preempt_count

2013-09-25 14:07:49 +02:00

debug

kdb: Add support for external NMI handler to call KGDB/KDB

2013-10-03 18:47:54 +02:00

events

list: introduce list_next_entry() and list_prev_entry()

2013-11-13 12:09:23 +09:00

gcov

gcov: reuse kbasename helper

2013-11-13 12:09:34 +09:00

irq

DeviceTree updates for 3.13. This is a bit larger pull request than

2013-11-12 16:52:17 +09:00

locking

locking/lockdep: Mark __lockdep_count_forward_deps() as static

2013-11-13 13:50:17 +01:00

power

Merge branch 'pm-sleep'

2013-11-07 19:26:55 +01:00

printk

printk.c: comments should refer to /proc/vmcore instead of /proc/vmcoreinfo

2013-11-13 12:09:14 +09:00

rcu

Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-11-12 10:20:12 +09:00

sched

sched: Avoid NULL dereference on sd_busy

2013-11-19 17:01:16 +01:00

time

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-11-12 10:36:00 +09:00

trace

Merge branch 'for-3.13/core' of git://git.kernel.dk/linux-block

2013-11-14 12:08:14 +09:00

.gitignore

…

acct.c

…

async.c

…

audit_tree.c

kernel/audit_tree.c:audit_add_tree_rule(): protect `rule' from kill_rules()

2013-06-12 16:29:46 -07:00

audit_watch.c

…

audit.c

audit: fix endless wait in audit_log_start()

2013-09-24 17:00:26 -07:00

audit.h

audit: fix mq_open and mq_unlink to add the MQ root as a hidden parent audit_names record

2013-07-09 10:33:19 -07:00

auditfilter.c

audit: Fix decimal constant description

2013-07-09 10:33:19 -07:00

auditsc.c

audit: fix mq_open and mq_unlink to add the MQ root as a hidden parent audit_names record

2013-07-09 10:33:19 -07:00

backtracetest.c

…

bounds.c

mm: numa: Change page last {nid,pid} into {cpu,pid}

2013-10-09 14:47:45 +02:00

capability.c

xfs: update for v3.12-rc1

2013-09-09 11:19:09 -07:00

cgroup_freezer.c

cgroup: make css_for_each_descendant() and friends include the origin css in the iteration

2013-08-08 20:11:27 -04:00

cgroup.c

Merge branch 'for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2013-11-13 15:21:53 +09:00

compat.c

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configs.c

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context_tracking.c

Linux 3.12-rc4

2013-10-09 12:36:13 +02:00

cpu_pm.c

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cpu.c

Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-11-14 16:55:11 +09:00

cpuset.c

Merge branch 'for-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2013-09-03 18:25:03 -07:00

crash_dump.c

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cred.c

…

delayacct.c

kernel/delayacct.c: remove redundant checking in __delayacct_add_tsk()

2013-11-13 12:09:12 +09:00

dma.c

…

elfcore.c

switch elf_core_write_extra_phdrs() to dump_emit()

2013-11-09 00:16:23 -05:00

exec_domain.c

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exit.c

ptrace: revert "Prepare to fix racy accesses on task breakpoints"

2013-07-09 10:33:26 -07:00

extable.c

extable: skip sorting if the table is empty

2013-09-11 15:58:25 -07:00

fork.c

Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-11-12 10:20:12 +09:00

freezer.c

freezer: set PF_SUSPEND_TASK flag on tasks that call freeze_processes

2013-07-30 14:05:06 +02:00

futex_compat.c

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futex.c

locking: Move the rtmutex code to kernel/locking/

2013-11-06 09:23:59 +01:00

groups.c

userns: Kill nsown_capable it makes the wrong thing easy

2013-08-30 23:44:11 -07:00

hrtimer.c

kernel: delete __cpuinit usage from all core kernel files

2013-07-14 19:36:59 -04:00

hung_task.c

hung_task debugging: Add tracepoint to report the hang

2013-10-31 11:16:18 +01:00

irq_work.c

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itimer.c

…

jump_label.c

static_key: WARN on usage before jump_label_init was called

2013-10-19 19:45:35 -04:00

kallsyms.c

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kcmp.c

…

Kconfig.freezer

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Kconfig.hz

…

Kconfig.locks

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Kconfig.preempt

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kexec.c

kexec: remove unnecessary return

2013-09-11 15:59:10 -07:00

kmod.c

kernel/kmod.c: check for NULL in call_usermodehelper_exec()

2013-09-30 14:31:02 -07:00

kprobes.c

kprobes: use KSYM_NAME_LEN to size identifier buffers

2013-11-13 12:09:26 +09:00

ksysfs.c

kernel: replace strict_strto*() with kstrto*()

2013-09-12 15:38:03 -07:00

kthread.c

kthread: make kthread_create() killable

2013-11-13 12:08:59 +09:00

latencytop.c

…

Makefile

Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-11-12 10:20:12 +09:00

modsign_certificate.S

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modsign_pubkey.c

kernel/modsign_pubkey.c: fix init const for module signing code

2013-09-11 15:58:21 -07:00

module_signing.c

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module-internal.h

…

module.c

kernel/module.c: use pr_foo()

2013-11-13 12:09:34 +09:00

notifier.c

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nsproxy.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2013-09-07 14:35:32 -07:00

padata.c

padata - Register hotcpu notifier after initialization

2013-08-29 14:37:59 +10:00

panic.c

kernel/panic.c: reduce 1 byte usage for print tainted buffer

2013-11-13 12:09:35 +09:00

params.c

kernel/params: fix handling of signed integer types

2013-09-28 12:35:52 -07:00

pid_namespace.c

pid_namespace: make freeing struct pid_namespace rcu-delayed

2013-10-24 23:43:29 -04:00

pid.c

pidns: fix free_pid() to handle the first fork failure

2013-09-30 14:31:03 -07:00

posix-cpu-timers.c

posix_timers: fix racy timer delta caching on task exit

2013-07-03 16:54:42 +02:00

posix-timers.c

…

profile.c

kernel: delete __cpuinit usage from all core kernel files

2013-07-14 19:36:59 -04:00

ptrace.c

exec/ptrace: fix get_dumpable() incorrect tests

2013-11-13 12:09:33 +09:00

range.c

range: Do not add new blank slot with add_range_with_merge

2013-06-18 11:32:10 -05:00

reboot.c

kernel/reboot.c: re-enable the function of variable reboot_default

2013-09-24 17:00:26 -07:00

relay.c

kernel: delete __cpuinit usage from all core kernel files

2013-07-14 19:36:59 -04:00

res_counter.c

memcg: reduce function dereference

2013-09-12 15:38:02 -07:00

resource.c

kernel/resource.c: remove the unneeded assignment in function __find_resource

2013-07-03 16:08:06 -07:00

seccomp.c

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signal.c

constify copy_siginfo_to_user{,32}()

2013-11-09 00:16:29 -05:00

smp.c

Merge branch 'for-3.13/core' of git://git.kernel.dk/linux-block

2013-11-14 12:08:14 +09:00

smpboot.c

kernel: delete __cpuinit usage from all core kernel files

2013-07-14 19:36:59 -04:00

smpboot.h

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softirq.c

Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-11-12 10:20:12 +09:00

stacktrace.c

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stop_machine.c

stop_machine: Fix race between stop_two_cpus() and stop_cpus()

2013-11-11 12:43:38 +01:00

sys_ni.c

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sys.c

kernel/sys.c: remove obsolete #include <linux/kexec.h>

2013-11-13 12:09:13 +09:00

sysctl_binary.c

kernel/sysctl_binary.c: use scnprintf() instead of snprintf()

2013-11-13 12:09:33 +09:00

sysctl.c

Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-11-14 16:30:30 +09:00

task_work.c

task_work: documentation

2013-09-11 15:58:27 -07:00

taskstats.c

kernel/taskstats.c: return -ENOMEM when alloc memory fails in add_del_listener()

2013-11-13 12:09:34 +09:00

test_kprobes.c

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time.c

sched: Rename sched.c as sched/core.c in comments and Documentation

2013-06-19 12:58:42 +02:00

timeconst.bc

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timer.c

sched: Introduce preempt_count accessor functions

2013-09-25 14:07:32 +02:00

tracepoint.c

…

tsacct.c

…

uid16.c

userns: Kill nsown_capable it makes the wrong thing easy

2013-08-30 23:44:11 -07:00

up.c

smp.h: move !SMP version of on_each_cpu() out-of-line

2013-09-11 15:58:25 -07:00

user_namespace.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2013-09-07 14:35:32 -07:00

user-return-notifier.c

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user.c

userns: Better restrictions on when proc and sysfs can be mounted

2013-08-26 19:17:03 -07:00

utsname_sysctl.c

…

utsname.c

userns: Kill nsown_capable it makes the wrong thing easy

2013-08-30 23:44:11 -07:00

watchdog.c

watchdog: update watchdog_thresh properly

2013-09-24 17:00:25 -07:00

workqueue_internal.h

sched: Rename sched.c as sched/core.c in comments and Documentation

2013-06-19 12:58:42 +02:00

workqueue.c

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

2013-09-06 09:36:28 -07:00