Steven Rostedt (Red Hat) 1245800c0f tracing: Move mutex to protect against resetting of seq data ...

The iter->seq can be reset outside the protection of the mutex. So can
reading of user data. Move the mutex up to the beginning of the function.

Fixes: d7350c3f45694 ("tracing/core: make the read callbacks reentrants")
Cc: stable@vger.kernel.org # 2.6.30+
Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

2016-09-25 10:27:08 -04:00

..

bpf

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2016-07-27 12:03:20 -07:00

configs

kconfig: add xenconfig defconfig helper

2015-06-16 11:04:29 +01:00

debug

mm/init: Add 'rodata=off' boot cmdline parameter to disable read-only kernel mappings

2016-02-22 08:51:37 +01:00

events

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2016-07-27 12:03:20 -07:00

gcov

gcov: add support for gcc version >= 6

2016-07-15 14:54:27 +09:00

irq

genirq: Fix missing irq allocation affinity hint

2016-07-19 10:49:47 +02:00

livepatch

Merge branches 'for-4.7/core', 'for-4.7/livepatching-doc' and 'for-4.7/livepatching-ppc64' into for-linus

2016-05-17 12:06:35 +02:00

locking

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

2016-07-25 12:41:29 -07:00

power

Power management material for v4.8-rc1

2016-07-26 17:29:07 -07:00

printk

printk/nmi: flush NMI messages on the system panic

2016-05-20 17:58:30 -07:00

rcu

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

2016-07-25 12:41:29 -07:00

sched

xen: features and fixes for 4.8-rc0

2016-07-27 11:35:37 -07:00

time

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

2016-07-25 20:43:12 -07:00

trace

tracing: Move mutex to protect against resetting of seq data

2016-09-25 10:27:08 -04:00

.gitignore

certs: add .gitignore to stop git nagging about x509_certificate_list

2015-10-21 15:18:35 +01:00

acct.c

acct: check FMODE_CAN_WRITE

2015-04-11 22:27:55 -04:00

async.c

async: export current_is_async()

2015-11-19 17:51:48 +01:00

audit_fsnotify.c

wrappers for ->i_mutex access

2016-01-22 18:04:28 -05:00

audit_tree.c

audit: cleanup prune_tree_thread

2016-04-04 09:46:47 -04:00

audit_watch.c

don't bother with ->d_inode->i_sb - it's always equal to ->d_sb

2016-04-10 17:11:51 -04:00

audit.c

Merge branch 'stable-4.7' of git://git.infradead.org/users/pcmoore/audit

2016-06-29 15:18:47 -07:00

audit.h

audit: move audit_get_tty to reduce scope and kabi changes

2016-06-28 15:48:48 -04:00

auditfilter.c

audit: Fix typo in comment

2016-02-08 11:25:39 -05:00

auditsc.c

Merge branch 'stable-4.7' of git://git.infradead.org/users/pcmoore/audit

2016-06-29 15:18:47 -07:00

backtracetest.c

…

bounds.c

page-cgroup: get rid of NR_PCG_FLAGS

2014-08-08 15:57:18 -07:00

capability.c

kernel: conditionally support non-root users, groups and capabilities

2015-04-15 16:35:22 -07:00

cgroup_freezer.c

cgroup: kill cgrp_ss_priv[CGROUP_CANFORK_COUNT] and friends

2015-12-03 10:24:08 -05:00

cgroup_pids.c

cgroup: Use lld instead of ld when printing pids controller events_limit

2016-06-21 15:03:36 -04:00

cgroup.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2016-07-27 12:03:20 -07:00

compat.c

compat: cleanup coding in compat_get_bitmap() and compat_put_bitmap()

2015-06-04 23:57:18 +02:00

configs.c

…

context_tracking.c

context_tracking: Switch to new static_branch API

2015-11-24 09:56:43 +01:00

cpu_pm.c

kernel/cpu_pm: fix cpu_cluster_pm_exit comment

2015-09-03 02:42:20 +02:00

cpu.c

cpu/hotplug: Keep enough storage space if SMP=n to avoid array out of bounds scribble

2016-07-13 09:29:39 +02:00

cpuset.c

cpuset: use static key better and convert to new API

2016-05-19 19:12:14 -07:00

crash_dump.c

crash_dump: Make is_kdump_kernel() accessible from modules

2014-08-25 15:42:19 -07:00

cred.c

kmemcg: account certain kmem allocations to memcg

2016-01-14 16:00:49 -08:00

delayacct.c

kmemcg: account certain kmem allocations to memcg

2016-01-14 16:00:49 -08:00

dma.c

…

elfcore.c

…

exec_domain.c

Remove rest of exec domains.

2015-04-12 21:03:31 +02:00

exit.c

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

2016-07-25 13:59:34 -07:00

extable.c

kernel/extable.c: remove duplicated include

2015-09-10 13:29:01 -07:00

fork.c

mm: charge/uncharge kmemcg from generic page allocator paths

2016-07-26 16:19:19 -07:00

freezer.c

freezer: remove obsolete comments in __thaw_task()

2014-10-21 23:44:20 +02:00

futex_compat.c

ptrace: use fsuid, fsgid, effective creds for fs access checks

2016-01-20 17:09:18 -08:00

futex.c

futex: Calculate the futex key based on a tail page for file-based futexes

2016-06-08 19:23:54 +02:00

groups.c

kernel: conditionally support non-root users, groups and capabilities

2015-04-15 16:35:22 -07:00

hung_task.c

kernel/hung_task.c: use timeout diff when timeout is updated

2016-03-22 15:36:02 -07:00

irq_work.c

treewide: Remove old email address

2015-11-23 09:44:58 +01:00

jump_label.c

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

2016-07-25 12:41:29 -07:00

kallsyms.c

kallsyms: add support for relative offsets in kallsyms address table

2016-03-15 16:55:16 -07:00

kcmp.c

ptrace: use fsuid, fsgid, effective creds for fs access checks

2016-01-20 17:09:18 -08:00

Kconfig.freezer

…

Kconfig.hz

…

Kconfig.locks

locking/qrwlock: Rename QUEUE_RWLOCK to QUEUED_RWLOCKS

2015-05-12 09:46:00 +02:00

Kconfig.preempt

…

kcov.c

kernel/kcov: unproxify debugfs file's fops

2016-06-15 04:56:35 -07:00

kexec_core.c

s390/kexec: consolidate crash_map/unmap_reserved_pages() and arch_kexec_protect(unprotect)_crashkres()

2016-05-23 17:04:14 -07:00

kexec_file.c

kexec: introduce a protection mechanism for the crashkernel reserved memory

2016-05-23 17:04:14 -07:00

kexec_internal.h

kexec: move some memembers and definitions within the scope of CONFIG_KEXEC_FILE

2016-01-20 17:09:18 -08:00

kexec.c

s390/kexec: consolidate crash_map/unmap_reserved_pages() and arch_kexec_protect(unprotect)_crashkres()

2016-05-23 17:04:14 -07:00

kmod.c

kmod: don't run async usermode helper as a child of kworker thread

2015-10-23 17:55:10 +09:00

kprobes.c

perf/x86/hw_breakpoints: Disallow kernel breakpoints unless kprobe-safe

2015-08-04 10:16:54 +02:00

ksysfs.c

rcu: Remove TINY_RCU bloat from pointless boot parameters

2015-12-07 16:59:37 -08:00

kthread.c

kernel/kthread.c:kthread_create_on_node(): clarify documentation

2015-09-04 16:54:41 -07:00

latencytop.c

sched/debug: Make schedstats a runtime tunable that is disabled by default

2016-02-09 11:54:23 +01:00

Makefile

ELF/MIPS build fix

2016-05-23 17:04:14 -07:00

membarrier.c

sys_membarrier(): system-wide memory barrier (generic, x86)

2015-09-11 15:21:34 -07:00

memremap.c

memremap: add arch specific hook for MEMREMAP_WB mappings

2016-04-04 10:26:41 +02:00

module_signing.c

KEYS: Move the point of trust determination to __key_link()

2016-04-11 22:43:43 +01:00

module-internal.h

…

module.c

module: preserve Elf information for livepatch modules

2016-04-01 15:00:10 +02:00

notifier.c

Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2015-09-01 08:40:25 -07:00

nsproxy.c

cgroup: introduce cgroup namespaces

2016-02-16 13:04:58 -05:00

padata.c

kernel/padata.c: hide unused functions

2016-05-19 19:12:14 -07:00

panic.c

printk/nmi: flush NMI messages on the system panic

2016-05-20 17:58:30 -07:00

params.c

Nothing exciting, minor tweaks and cleanups.

2015-11-09 15:53:39 -08:00

pid_namespace.c

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

2014-12-16 15:53:03 -08:00

pid.c

remove lots of IS_ERR_VALUE abuses

2016-05-27 15:26:11 -07:00

profile.c

profile: hide unused functions when !CONFIG_PROC_FS

2016-03-22 15:36:02 -07:00

ptrace.c

ptrace: change __ptrace_unlink() to clear ->ptrace under ->siglock

2016-03-22 15:36:02 -07:00

range.c

kernel: avoid overflow in cmp_range

2015-01-17 10:02:23 +13:00

reboot.c

kexec: split kexec_load syscall from kexec core code

2015-09-10 13:29:01 -07:00

relay.c

kernel/relay.c: fix potential memory leak

2016-06-09 14:23:11 -07:00

resource.c

/proc/iomem: only expose physical resource addresses to privileged users

2016-04-14 12:56:09 -07:00

seccomp.c

Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

2016-05-19 10:02:26 -07:00

signal.c

signals: Use hrtimer for sigtimedwait()

2016-07-07 10:35:07 +02:00

smp.c

locking/barriers: Replace smp_cond_acquire() with smp_cond_load_acquire()

2016-06-14 11:54:27 +02:00

smpboot.c

cpu/hotplug: Unpark smpboot threads from the state machine

2016-03-01 20:36:56 +01:00

smpboot.h

cpu/hotplug: Create hotplug threads

2016-03-01 20:36:56 +01:00

softirq.c

arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections

2016-03-25 16:37:42 -07:00

stacktrace.c

stacktrace: introduce snprint_stack_trace for buffer output

2014-12-13 12:42:48 -08:00

stop_machine.c

kernel/stop_machine.c: remove CONFIG_SMP dependencies

2016-01-16 11:17:24 -08:00

sys_ni.c

vfs: add copy_file_range syscall and vfs helper

2015-12-01 14:00:53 -05:00

sys.c

prctl: make PR_SET_THP_DISABLE wait for mmap_sem killable

2016-05-23 17:04:14 -07:00

sysctl_binary.c

kernel/sysctl_binary.c: use generic UUID library

2016-05-20 17:58:30 -07:00

sysctl.c

rcu: sysctl: Panic on RCU Stall

2016-06-15 16:00:05 -07:00

task_work.c

locking/spinlock: Update spin_unlock_wait() users

2016-06-14 11:55:15 +02:00

taskstats.c

taskstats: use the libnl API to align nlattr on 64-bit

2016-04-23 20:13:25 -04:00

test_kprobes.c

kernel/test_kprobes.c: use current logging functions

2014-08-08 15:57:18 -07:00

torture.c

torture: Stop onoff task if there is only one cpu

2016-06-14 16:03:28 -07:00

tracepoint.c

kernel/...: convert pr_warning to pr_warn

2016-03-22 15:36:02 -07:00

tsacct.c

time, acct: Drop irq save & restore from __acct_update_integrals()

2016-02-29 09:53:09 +01:00

uid16.c

groups: Consolidate the setgroups permission checks

2014-12-05 17:19:27 -06:00

up.c

…

user_namespace.c

kernel/*: switch to memdup_user_nul()

2016-01-04 10:27:55 -05:00

user-return-notifier.c

scheduler: Replace __get_cpu_var with this_cpu_ptr

2014-08-26 13:45:45 -04:00

user.c

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

2014-12-17 12:31:40 -08:00

utsname_sysctl.c

…

utsname.c

copy address of proc_ns_ops into ns_common

2014-12-04 14:34:47 -05:00

watchdog.c

Revert "perf/x86/intel, watchdog: Switch NMI watchdog to ref cycles on x86"

2016-07-10 20:58:36 +02:00

workqueue_internal.h

sched/core: Get rid of 'cpu' argument in wq_worker_sleeping()

2016-03-02 10:28:47 -05:00

workqueue.c

Merge branches 'pm-sleep' and 'pm-tools'

2016-07-25 13:44:32 +02:00