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linux/kernel/time
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Phil Chang 12db3188cd hrtimer: Prevent queuing of hrtimer without a function callback 
[ Upstream commit 5a830bbce3 ]

The hrtimer function callback must not be NULL. It has to be specified by
the call side but it is not validated by the hrtimer code. When a hrtimer
is queued without a function callback, the kernel crashes with a null
pointer dereference when trying to execute the callback in __run_hrtimer().

Introduce a validation before queuing the hrtimer in
hrtimer_start_range_ns().

[anna-maria: Rephrase commit message]

Signed-off-by: Phil Chang <phil.chang@mediatek.com>
Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-08-29 17:30:41 +02:00
..
alarmtimer.c alarmtimer: Prevent starvation by small intervals and SIG_IGN 2023-02-22 12:59:55 +01:00
clockevents.c clockevents: Use dedicated list iterator variable 2022-04-10 12:38:45 +02:00
clocksource-wdtest.c clocksource: Scale the watchdog read retries automatically 2024-08-14 13:52:57 +02:00
clocksource.c clocksource: Make watchdog and suspend-timing multiplication overflow safe 2024-08-29 17:30:39 +02:00
hrtimer.c hrtimer: Prevent queuing of hrtimer without a function callback 2024-08-29 17:30:41 +02:00
itimer.c time: Prevent undefined behaviour in timespec64_to_ns() 2020-10-26 11:48:11 +01:00
jiffies.c clocksource: Make clocksource watchdog test safe for slow-HZ systems 2021-08-28 17:01:32 +02:00
Kconfig context_tracking: Take idle eqs entrypoints over RCU 2022-07-05 13:32:16 -07:00
Makefile time: Improve performance of time64_to_tm() 2021-06-24 11:51:59 +02:00
namespace.c memcg: enable accounting for new namesapces and struct nsproxy 2021-09-03 09:58:12 -07:00
ntp.c ntp: Safeguard against time_constant overflow 2024-08-14 13:52:57 +02:00
ntp_internal.h ntp: Make the RTC synchronization more reliable 2020-12-11 10:40:52 +01:00
posix-clock.c posix-clocks: Rename the clock_get() callback to clock_get_timespec() 2020-01-14 12:20:49 +01:00
posix-cpu-timers.c posix-cpu-timers: Implement the missing timer_wait_running callback 2023-05-11 23:03:00 +09:00
posix-stubs.c timers: Prevent union confusion from unexpected restart_syscall() 2023-03-10 09:33:49 +01:00
posix-timers.c posix-timers: Ensure timer ID search-loop limit is valid 2024-08-29 17:30:17 +02:00
posix-timers.h posix-clocks: Introduce clock_get_ktime() callback 2020-01-14 12:20:51 +01:00
sched_clock.c time/sched_clock: Fix formatting of frequency reporting code 2022-05-02 14:29:04 +02:00
test_udelay.c time/debug: Fix memory leak with using debugfs_lookup() 2023-03-10 09:33:52 +01:00
tick-broadcast-hrtimer.c timekeeping, clocksource: Fix various typos in comments 2021-03-22 23:06:48 +01:00
tick-broadcast.c tick/broadcast: Move per CPU pointer access into the atomic section 2024-08-14 13:52:56 +02:00
tick-common.c tick/nohz_full: Don't abuse smp_call_function_single() in tick_setup_device() 2024-06-21 14:35:59 +02:00
tick-internal.h clocksource: Make clocksource watchdog test safe for slow-HZ systems 2021-08-28 17:01:32 +02:00
tick-legacy.c timekeeping: remove xtime_update 2020-10-30 21:57:07 +01:00
tick-oneshot.c timekeeping, clocksource: Fix various typos in comments 2021-03-22 23:06:48 +01:00
tick-sched.c tick/sched: Preserve number of idle sleeps across CPU hotplug events 2024-01-31 16:17:12 -08:00
tick-sched.h tick: Detect and fix jiffies update stall 2022-03-07 23:01:19 +01:00
time.c time: Correct the prototype of ns_to_kernel_old_timeval and ns_to_timespec64 2022-08-09 20:02:13 +02:00
time_test.c time: test: Fix incorrect format specifier 2024-03-26 18:20:29 -04:00
timeconst.bc time: Add SPDX license identifiers 2018-11-23 11:51:20 +01:00
timeconv.c time: Improve performance of time64_to_tm() 2021-06-24 11:51:59 +02:00
timecounter.c time/timecounter: Mark 1st argument of timecounter_cyc2time() as const 2021-04-16 21:03:50 +02:00
timekeeping.c timekeeping: Fix bogus clock_was_set() invocation in do_adjtimex() 2024-08-14 13:52:58 +02:00
timekeeping.h asm-generic: cross-architecture timer cleanup 2020-12-16 00:07:17 -08:00
timekeeping_debug.c timekeeping/debug: No need to check return value of debugfs_create functions 2019-01-29 20:08:41 +01:00
timekeeping_internal.h timekeeping/vsyscall: Provide vdso_update_begin/end() 2020-08-06 10:57:30 +02:00
timer.c timers: Rename del_timer() to timer_delete() 2024-05-17 11:56:13 +02:00
timer_list.c timer_list: Print name of per-cpu wakeup device 2021-05-31 17:04:49 +02:00
vsyscall.c timekeeping, clocksource: Fix various typos in comments 2021-03-22 23:06:48 +01:00