Shaohua Li e10237cc76 kthread: zero the kthread data structure ...

kthread() could bail out early before we initialize blkcg_css (if the
kthread is killed very early. Please see xchg() statement in kthread()),
which confuses free_kthread_struct. Instead of moving the blkcg_css
initialization early, we simply zero the whole 'self' data structure,
which doesn't sound much overhead.

Reported-by: syzbot <syzkaller@googlegroups.com>
Fixes: 05e3db95eb ("kthread: add a mechanism to store cgroup info")
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

2017-11-10 19:53:25 -07:00

..

bpf

bpf: fix ri->map_owner pointer on bpf_prog_realloc

2017-09-19 16:38:53 -07:00

cgroup

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

2017-09-12 11:30:56 -07:00

configs

ANDROID: binder: add hwbinder,vndbinder to BINDER_DEVICES.

2017-08-22 18:43:23 -07:00

debug

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events

bpf: one perf event close won't free bpf program attached by another perf event

2017-09-20 14:10:29 -07:00

gcov

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irq

genirq: Fix cpumask check in __irq_startup_managed()

2017-09-16 20:20:56 +02:00

livepatch

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locking

mm: treewide: remove GFP_TEMPORARY allocation flag

2017-09-13 18:53:16 -07:00

power

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

2017-09-12 11:30:56 -07:00

printk

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

2017-09-07 21:00:52 -07:00

rcu

Merge tag 'trace-v4.14-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2017-09-25 15:22:31 -07:00

sched

sched/wait: Introduce wakeup boomark in wake_up_page_bit

2017-09-14 09:56:18 -07:00

time

drivers/pps: aesthetic tweaks to PPS-related content

2017-09-08 18:26:51 -07:00

trace

blktrace: fix unlocked registration of tracepoints

2017-11-10 19:53:25 -07:00

.gitignore

…

acct.c

fs: make the buf argument to __kernel_write a void pointer

2017-09-04 19:05:15 -04:00

async.c

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audit_fsnotify.c

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audit_tree.c

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audit_watch.c

Merge tag 'audit-pr-20170816' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit

2017-08-16 16:48:34 -07:00

audit.c

audit: update the function comments

2017-09-05 09:46:59 -04:00

audit.h

ipc: mqueue: Replace timespec with timespec64

2017-09-03 20:21:24 -04:00

auditfilter.c

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auditsc.c

Merge branch 'work.ipc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2017-09-14 17:37:26 -07:00

backtracetest.c

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bounds.c

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capability.c

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compat.c

semtimedop(): move compat to native

2017-07-15 20:46:47 -04:00

configs.c

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context_tracking.c

…

cpu_pm.c

PM / CPU: replace raw_notifier with atomic_notifier

2017-07-31 13:09:49 +02:00

cpu.c

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

2017-09-04 13:53:53 -07:00

crash_core.c

kdump: protect vmcoreinfo data under the crash memory

2017-07-12 16:26:00 -07:00

crash_dump.c

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cred.c

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delayacct.c

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dma.c

…

elfcore.c

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exec_domain.c

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exit.c

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

2017-09-11 18:34:47 -07:00

extable.c

extable: Enable RCU if it is not watching in kernel_text_address()

2017-09-23 16:50:20 -04:00

fork.c

Merge tag 'selinux-pr-20170831' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

2017-09-12 13:21:00 -07:00

freezer.c

…

futex_compat.c

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futex.c

futex: Remove duplicated code and fix undefined behaviour

2017-08-25 22:49:59 +02:00

groups.c

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hung_task.c

…

irq_work.c

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jump_label.c

jump_label: Provide hotplug context variants

2017-08-10 12:28:59 +02:00

kallsyms.c

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kcmp.c

kcmp: add KCMP_EPOLL_TFD mode to compare epoll target files

2017-07-12 16:26:01 -07:00

Kconfig.freezer

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Kconfig.hz

…

Kconfig.locks

…

Kconfig.preempt

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kcov.c

kcov: support compat processes

2017-09-08 18:26:51 -07:00

kexec_core.c

x86/mm, kexec: Allow kexec to be used with SME

2017-07-18 11:38:04 +02:00

kexec_file.c

kexec_file: adjust declaration of kexec_purgatory

2017-07-12 16:26:02 -07:00

kexec_internal.h

kexec_file: adjust declaration of kexec_purgatory

2017-07-12 16:26:02 -07:00

kexec.c

kdump: protect vmcoreinfo data under the crash memory

2017-07-12 16:26:00 -07:00

kmod.c

kmod: move #ifdef CONFIG_MODULES wrapper to Makefile

2017-09-08 18:26:51 -07:00

kprobes.c

…

ksysfs.c

kexec: move vmcoreinfo out of the kernel's .bss section

2017-07-12 16:25:59 -07:00

kthread.c

kthread: zero the kthread data structure

2017-11-10 19:53:25 -07:00

latencytop.c

…

Makefile

kmod: move #ifdef CONFIG_MODULES wrapper to Makefile

2017-09-08 18:26:51 -07:00

memremap.c

mm/device-public-memory: device memory cache coherent with CPU

2017-09-08 18:26:46 -07:00

module_signing.c

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module-internal.h

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module.c

module: fix ddebug_remove_module()

2017-07-25 15:08:32 +02:00

notifier.c

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nsproxy.c

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padata.c

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panic.c

locking/refcounts, x86/asm: Implement fast refcount overflow protection

2017-08-17 10:40:26 +02:00

params.c

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pid_namespace.c

userns,pidns: Verify the userns for new pid namespaces

2017-07-20 07:43:58 -05:00

pid.c

pids: make task_tgid_nr_ns() safe

2017-08-21 12:47:31 -07:00

profile.c

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ptrace.c

signal: Remove kernel interal si_code magic

2017-07-24 14:30:28 -05:00

range.c

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reboot.c

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relay.c

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resource.c

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seccomp.c

seccomp: Implement SECCOMP_RET_KILL_PROCESS action

2017-08-14 13:46:50 -07:00

signal.c

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

2017-09-11 18:34:47 -07:00

smp.c

treewide: make "nr_cpu_ids" unsigned

2017-09-08 18:26:48 -07:00

smpboot.c

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smpboot.h

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softirq.c

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stacktrace.c

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stop_machine.c

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sys_ni.c

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sys.c

prctl: Allow local CAP_SYS_ADMIN changing exe_file

2017-07-20 07:46:07 -05:00

sysctl_binary.c

fs: fix kernel_write prototype

2017-09-04 19:05:15 -04:00

sysctl.c

sysctl: remove /proc/sys/vm/nr_pdflush_threads

2017-10-04 11:24:16 -06:00

task_work.c

task_work: Replace spin_unlock_wait() with lock/unlock pair

2017-07-25 10:08:58 -07:00

taskstats.c

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test_kprobes.c

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torture.c

torture: Fix typo suppressing CPU-hotplug statistics

2017-07-25 13:04:45 -07:00

tracepoint.c

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tsacct.c

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ucount.c

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uid16.c

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umh.c

kmod: split out umh code into its own file

2017-09-08 18:26:50 -07:00

up.c

smp: Avoid using two cache lines for struct call_single_data

2017-08-29 15:14:38 +02:00

user_namespace.c

userns,pidns: Verify the userns for new pid namespaces

2017-07-20 07:43:58 -05:00

user-return-notifier.c

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user.c

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utsname_sysctl.c

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utsname.c

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watchdog_hld.c

kernel/watchdog: Prevent false positives with turbo modes

2017-08-18 12:35:02 +02:00

watchdog.c

kernel/watchdog: Prevent false positives with turbo modes

2017-08-18 12:35:02 +02:00

workqueue_internal.h

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workqueue.c

Merge branch 'for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

2017-09-06 21:59:31 -07:00