Jiri Olsa 585af47e21 perf: Return proper values for user stack errors ...

commit 78b562fbfa upstream.

Return immediately when we find issue in the user stack checks. The
error value could get overwritten by following check for
PERF_SAMPLE_REGS_INTR.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: syzkaller-bugs@googlegroups.com
Cc: x86@kernel.org
Fixes: 60e2364e60 ("perf: Add ability to sample machine state on interrupt")
Link: http://lkml.kernel.org/r/20180415092352.12403-1-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-04-29 07:50:01 +02:00

..

bpf

bpf: skip unnecessary capability check

2018-03-28 18:40:17 +02:00

configs

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debug

kdb: Fix handling of kallsyms_symbol_next() return value

2017-12-16 10:33:49 +01:00

events

perf: Return proper values for user stack errors

2018-04-29 07:50:01 +02:00

gcov

gcov: disable for COMPILE_TEST

2018-01-23 19:50:10 +01:00

irq

genirq: Use cpumask_available() for check of cpumask variable

2018-04-08 11:51:57 +02:00

livepatch

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locking

locking/mutex: Allow next waiter lockless wakeup

2018-01-17 09:35:27 +01:00

power

sched/cpuset/pm: Fix cpuset vs. suspend-resume bugs

2017-10-12 11:27:35 +02:00

printk

braille-console: Fix value returned by _braille_console_setup

2018-03-22 09:23:23 +01:00

rcu

rcu: Allow for page faults in NMI handlers

2017-10-18 09:20:41 +02:00

sched

sched/numa: Use down_read_trylock() for the mmap_sem

2018-04-13 19:50:09 +02:00

time

time: Change posix clocks ops interfaces to use timespec64

2018-03-24 10:58:40 +01:00

trace

tracing: probeevent: Fix to support minus offset from symbol

2018-03-28 18:40:15 +02:00

.gitignore

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acct.c

kernel/acct.c: fix the acct->needcheck check in check_free_space()

2018-01-10 09:27:08 +01:00

async.c

kernel/async.c: revert "async: simplify lowest_in_progress()"

2018-02-16 20:09:45 +01:00

audit_fsnotify.c

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audit_tree.c

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audit_watch.c

audit: Fix use after free in audit_remove_watch_rule()

2017-08-24 17:02:35 -07:00

audit.c

audit: add tty field to LOGIN event

2018-04-08 11:51:57 +02:00

audit.h

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auditfilter.c

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auditsc.c

audit: add tty field to LOGIN event

2018-04-08 11:51:57 +02:00

backtracetest.c

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bounds.c

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capability.c

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cgroup_freezer.c

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cgroup_pids.c

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cgroup.c

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compat.c

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configs.c

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context_tracking.c

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cpu_pm.c

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cpu.c

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cpuset.c

sched/cpuset/pm: Fix cpuset vs. suspend-resume bugs

2017-10-12 11:27:35 +02:00

crash_dump.c

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cred.c

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delayacct.c

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dma.c

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elfcore.c

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exec_domain.c

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exit.c

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extable.c

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fork.c

kaiser: stack map PAGE_SIZE at THREAD_SIZE-PAGE_SIZE

2018-01-05 15:44:23 +01:00

freezer.c

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futex_compat.c

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futex.c

futex: Remove requirement for lock_page() in get_futex_key()

2018-04-13 19:50:24 +02:00

groups.c

kernel: make groups_sort calling a responsibility group_info allocators

2018-01-10 09:27:10 +01:00

hung_task.c

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irq_work.c

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jump_label.c

jump_label: Invoke jump_label_test() via early_initcall()

2017-12-16 10:33:55 +01:00

kallsyms.c

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kcmp.c

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Kconfig.freezer

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Kconfig.hz

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Kconfig.locks

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Kconfig.preempt

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kexec_core.c

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kexec_file.c

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kexec_internal.h

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kexec.c

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kmod.c

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kprobes.c

kprobes/x86: Fix to set RWX bits correctly before releasing trampoline

2018-04-08 11:51:56 +02:00

ksysfs.c

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kthread.c

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latencytop.c

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Makefile

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membarrier.c

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memremap.c

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module_signing.c

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module-internal.h

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module.c

module/retpoline: Warn about missing retpoline in module

2018-02-25 11:03:52 +01:00

notifier.c

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nsproxy.c

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padata.c

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panic.c

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params.c

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pid_namespace.c

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pid.c

pidns: disable pid allocation if pid_ns_prepare_proc() is failed in alloc_pid()

2018-04-13 19:50:03 +02:00

profile.c

profile: hide unused functions when !CONFIG_PROC_FS

2018-02-25 11:03:44 +01:00

ptrace.c

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range.c

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reboot.c

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relay.c

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resource.c

resource: fix integer overflow at reallocation

2018-04-24 09:32:05 +02:00

seccomp.c

seccomp: fix the usage of get/put_seccomp_filter() in seccomp_get_filter()

2017-10-05 09:41:46 +02:00

signal.c

kernel/signal.c: remove the no longer needed SIGNAL_UNKILLABLE check in complete_signal()

2018-01-10 09:27:11 +01:00

smp.c

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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

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sysctl_binary.c

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sysctl.c

timer/sysclt: Restrict timer migration sysctl values to 0 and 1

2017-10-05 09:41:47 +02:00

task_work.c

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taskstats.c

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test_kprobes.c

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torture.c

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tracepoint.c

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tsacct.c

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uid16.c

kernel: make groups_sort calling a responsibility group_info allocators

2018-01-10 09:27:10 +01:00

up.c

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user_namespace.c

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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.c

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workqueue_internal.h

workqueue: Fix NULL pointer dereference

2017-11-15 17:13:11 +01:00

workqueue.c

workqueue: Allow retrieval of current task's work struct

2018-03-18 11:17:48 +01:00