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linux-stable/kernel/time
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Chen Jun 9fbf44e7df posix-timers: Preserve return value in clock_adjtime32() 
commit 2d036dfa5f upstream.

The return value on success (>= 0) is overwritten by the return value of
put_old_timex32(). That works correct in the fault case, but is wrong for
the success case where put_old_timex32() returns 0.

Just check the return value of put_old_timex32() and return -EFAULT in case
it is not zero.

[ tglx: Massage changelog ]

Fixes: 3a4d44b616 ("ntp: Move adjtimex related compat syscalls to native counterparts")
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Richard Cochran <richardcochran@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210414030449.90692-1-chenjun102@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-22 10:57:22 +02:00
..
alarmtimer.c kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data() 2021-03-24 11:05:05 +01:00
clockevents.c clockevents: Make clockevents_config() static 2017-03-23 12:14:05 -07:00
clocksource.c clocksource: Prevent double add_timer_on() for watchdog_timer 2020-02-14 16:32:20 -05:00
hrtimer.c kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data() 2021-03-24 11:05:05 +01:00
itimer.c time: Prevent undefined behaviour in timespec64_to_ns() 2020-11-18 18:27:52 +01:00
jiffies.c jiffies: Revert bogus conversion of NSEC_PER_SEC to TICK_NSEC 2017-03-07 11:03:28 +01:00
Kconfig rcu: Remove nohz_full full-system-idle state machine 2017-06-08 18:52:39 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ntp.c ntp: Limit TAI-UTC offset 2019-07-31 07:28:27 +02:00
ntp_internal.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
posix-clock.c ptp: fix the race between the release of ptp_clock and cdev 2020-01-04 14:00:12 +01:00
posix-cpu-timers.c kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data() 2021-03-24 11:05:05 +01:00
posix-stubs.c posix-timers: Use get_timespec64() and put_timespec64() 2017-06-30 04:13:19 -04:00
posix-timers.c posix-timers: Preserve return value in clock_adjtime32() 2021-05-22 10:57:22 +02:00
posix-timers.h posix-timers: Make forward callback return s64 2018-10-03 17:00:50 -07:00
sched_clock.c timers, sched_clock: Update timeout for clock wrap 2017-03-23 12:30:27 -07:00
test_udelay.c
tick-broadcast-hrtimer.c tick: broadcast-hrtimer: Fix a race in bc_set_next 2019-10-11 18:18:46 +02:00
tick-broadcast.c tick/broadcast: Use for_each_cpu() specially on UP kernels 2018-05-22 18:54:00 +02:00
tick-common.c ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
tick-internal.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tick-oneshot.c ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
tick-sched.c tick/sched: Annotate lockless access to last_jiffies_update 2020-01-23 08:20:35 +01:00
tick-sched.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
time.c time: Make sure jiffies_to_msecs() preserves non-zero time periods 2018-07-03 11:24:56 +02:00
timeconst.bc time: Introduce jiffies64_to_nsecs() 2017-02-01 09:13:45 +01:00
timeconv.c
timecounter.c
timekeeping.c timekeeping: Prevent 32bit truncation in scale64_check_overflow() 2020-10-01 13:12:36 +02:00
timekeeping.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
timekeeping_debug.c PM / timekeeping: Print debug messages when requested 2017-07-23 00:03:43 +02:00
timekeeping_internal.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
timer.c random32: make prandom_u32() output unpredictable 2020-11-18 18:28:00 +01:00
timer_list.c timer_list: Guard procfs specific code 2019-07-31 07:28:28 +02:00