Miroslav Lichvar 90a238a8a2 ntp: Allow TAI-UTC offset to be set to zero ... [ Upstream commit fdc6bae940ee9eb869e493990540098b8c0fd6ab ] The ADJ_TAI adjtimex mode sets the TAI-UTC offset of the system clock. It is typically set by NTP/PTP implementations and it is automatically updated by the kernel on leap seconds. The initial value is zero (which applications may interpret as unknown), but this value cannot be set by adjtimex. This limitation seems to go back to the original "nanokernel" implementation by David Mills. Change the ADJ_TAI check to accept zero as a valid TAI-UTC offset in order to allow setting it back to the initial value. Fixes: 153b5d054a ("ntp: support for TAI") Suggested-by: Ondrej Mosnacek <omosnace@redhat.com> Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: John Stultz <john.stultz@linaro.org> Cc: Richard Cochran <richardcochran@gmail.com> Cc: Prarit Bhargava <prarit@redhat.com> Link: https://lkml.kernel.org/r/20190417084833.7401-1-mlichvar@redhat.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2019-06-22 08:18:19 +02:00
..
bpf	bpf: Prevent memory disambiguation attack	2018-12-17 21:55:15 +01:00
configs
debug	kdb: use memmove instead of overlapping memcpy	2018-12-13 09:21:29 +01:00
events	perf/core: Restore mmap record type correctly	2019-04-27 09:33:56 +02:00
gcov	gcov: disable for COMPILE_TEST	2018-01-23 19:50:10 +01:00
irq	genirq: Prevent use-after-free and work list corruption	2019-05-16 19:45:04 +02:00
livepatch
locking	Revert "locking/lockdep: Add debug_locks check in __lock_downgrade()"	2019-04-27 09:34:02 +02:00
power	PM / Hibernate: Call flush_icache_range() on pages restored in-place	2019-04-03 06:23:24 +02:00
printk	printk: Fix panic caused by passing log_buf_len to command line	2018-11-21 09:27:35 +01:00
rcu	rcutorture: Fix cleanup path for invalid torture_type strings	2019-06-11 12:24:04 +02:00
sched	sched/core: Handle overflow in cpu_shares_write_u64	2019-06-11 12:23:58 +02:00
time	ntp: Allow TAI-UTC offset to be set to zero	2019-06-22 08:18:19 +02:00
trace	tracing: Fix partial reading of trace event's id file	2019-06-11 12:23:46 +02:00
.gitignore
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.c	audit: return on memory error to avoid null pointer dereference	2018-05-30 07:49:16 +02:00
audit.h
audit_fsnotify.c
audit_tree.c
audit_watch.c	audit: fix use-after-free in audit_add_watch	2018-09-26 08:35:08 +02:00
auditfilter.c	audit: fix a memory leak bug	2019-06-11 12:23:58 +02:00
auditsc.c	audit: allow not equal op for audit by executable	2018-08-06 16:24:38 +02:00
backtracetest.c
bounds.c	kbuild: fix kernel/bounds.c 'W=1' warning	2018-11-21 09:27:35 +01:00
capability.c
cgroup.c	cgroup: Fix deadlock in cpu hotplug path	2018-10-13 09:11:33 +02:00
cgroup_freezer.c
cgroup_pids.c
compat.c
configs.c
context_tracking.c
cpu.c	cpu/speculation: Add 'mitigations=' cmdline option	2019-05-16 19:45:15 +02:00
cpu_pm.c
cpuset.c	sched/cpuset/pm: Fix cpuset vs. suspend-resume bugs	2017-10-12 11:27:35 +02:00
crash_dump.c
cred.c
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c	kernel/exit.c: release ptraced tasks before zap_pid_ns_processes	2019-02-06 19:43:07 +01:00
extable.c	kernel/extable.c: mark core_kernel_text notrace	2017-07-21 07:44:56 +02:00
fork.c	fork: record start_time late	2019-01-13 10:05:32 +01:00
freezer.c
futex.c	futex: Ensure that futex address is aligned in handle_futex_death()	2019-04-03 06:23:15 +02:00
futex_compat.c
groups.c	kernel: make groups_sort calling a responsibility group_info allocators	2018-01-10 09:27:10 +01:00
hung_task.c	kernel/hung_task.c: break RCU locks based on jiffies	2019-02-20 10:13:14 +01:00
irq_work.c
jump_label.c	jump_label: Invoke jump_label_test() via early_initcall()	2017-12-16 10:33:55 +01:00
kallsyms.c
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kexec.c
kexec_core.c
kexec_file.c
kexec_internal.h
kmod.c
kprobes.c	kprobes: Fix error check when reusing optimized probes	2019-04-27 09:34:02 +02:00
ksysfs.c
kthread.c	kthread, tracing: Don't expose half-written comm when creating kthreads	2018-09-09 20:04:34 +02:00
latencytop.c
Makefile
membarrier.c
memremap.c	mm, devm_memremap_pages: kill mapping "System RAM" support	2019-01-13 10:05:32 +01:00
module-internal.h
module.c	module: exclude SHN_UNDEF symbols from kallsyms api	2018-10-10 08:52:07 +02:00
module_signing.c
notifier.c
nsproxy.c
padata.c
panic.c	kernel/panic.c: add missing \n	2017-07-05 14:37:19 +02:00
params.c
pid.c	pidns: disable pid allocation if pid_ns_prepare_proc() is failed in alloc_pid()	2018-04-13 19:50:03 +02:00
pid_namespace.c
profile.c	profile: hide unused functions when !CONFIG_PROC_FS	2018-02-25 11:03:44 +01:00
ptrace.c	x86/speculation: Apply IBPB more strictly to avoid cross-process data leak	2019-05-16 19:45:09 +02:00
range.c
reboot.c
relay.c	kernel/relay.c: limit kmalloc size to KMALLOC_MAX_SIZE	2018-05-30 07:49:00 +02:00
resource.c	resource: fix integer overflow at reallocation	2018-04-24 09:32:05 +02:00
seccomp.c	seccomp: Move speculation migitation control to arch code	2018-07-25 10:18:27 +02:00
signal.c	kernel/signal.c: trace_signal_deliver when signal_group_exit	2019-06-11 12:24:10 +02:00
smp.c
smpboot.c
smpboot.h
softirq.c
stacktrace.c
stop_machine.c
sys.c	kernel/sys.c: prctl: fix false positive in validate_prctl_map()	2019-06-22 08:18:18 +02:00
sys_ni.c
sysctl.c	sysctl: return -EINVAL if val violates minmax	2019-06-22 08:18:17 +02:00
sysctl_binary.c
task_work.c
taskstats.c
test_kprobes.c
torture.c
tracepoint.c	tracepoint: Do not warn on ENOMEM	2018-05-16 10:06:47 +02:00
tsacct.c
uid16.c	kernel: make groups_sort calling a responsibility group_info allocators	2018-01-10 09:27:10 +01:00
up.c
user-return-notifier.c
user.c
user_namespace.c	userns: move user access out of the mutex	2018-09-09 20:04:35 +02:00
utsname.c
utsname_sysctl.c	sys: don't hold uts_sem while accessing userspace memory	2018-09-09 20:04:35 +02:00
watchdog.c
workqueue.c	workqueue: use put_device() instead of kfree()	2018-05-30 07:49:04 +02:00
workqueue_internal.h	workqueue: Fix NULL pointer dereference	2017-11-15 17:13:11 +01:00