linux/kernel/time
Phil Chang 5a830bbce3 hrtimer: Prevent queuing of hrtimer without a function callback
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>
2024-06-25 16:54:27 +02:00
..
Kconfig
Makefile
alarmtimer.c
clockevents.c
clocksource-wdtest.c
clocksource.c
hrtimer.c hrtimer: Prevent queuing of hrtimer without a function callback 2024-06-25 16:54:27 +02:00
itimer.c
jiffies.c
namespace.c
ntp.c
ntp_internal.h
posix-clock.c
posix-cpu-timers.c
posix-stubs.c
posix-timers.c
posix-timers.h
sched_clock.c
test_udelay.c
tick-broadcast-hrtimer.c
tick-broadcast.c
tick-common.c
tick-internal.h
tick-legacy.c
tick-oneshot.c
tick-sched.c
tick-sched.h
time.c
time_test.c
timeconst.bc
timeconv.c
timecounter.c
timekeeping.c
timekeeping.h
timekeeping_debug.c
timekeeping_internal.h
timer.c
timer_list.c
timer_migration.c
timer_migration.h
vsyscall.c