Thomas Gleixner 0e334db6bb posix-timers: Fix division by zero bug ... The signal delivery path of posix-timers can try to rearm the timer even if the interval is zero. That's handled for the common case (hrtimer) but not for alarm timers. In that case the forwarding function raises a division by zero exception. The handling for hrtimer based posix timers is wrong because it marks the timer as active despite the fact that it is stopped. Move the check from common_hrtimer_rearm() to posixtimer_rearm() to cure both issues. Reported-by: syzbot+9d38bedac9cc77b8ad5e@syzkaller.appspotmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: John Stultz <john.stultz@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: sboyd@kernel.org Cc: stable@vger.kernel.org Cc: syzkaller-bugs@googlegroups.com Link: http://lkml.kernel.org/r/alpine.DEB.2.21.1812171328050.1880@nanos.tec.linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>		2018-12-17 17:35:45 +01:00
..
bpf	bpf: add per-insn complexity limit	2018-12-04 17:22:02 +01:00
cgroup	for-linus-20181102	2018-11-02 11:25:48 -07:00
configs	kvm_config: add CONFIG_VIRTIO_MENU	2018-10-24 20:55:56 -04:00
debug	kdb: kdb_support: mark expected switch fall-throughs	2018-11-13 20:38:50 +00:00
dma	swiotlb: Skip cache maintenance on map error	2018-11-21 18:47:58 +01:00
events	This is a single commit that fixes a bug in uprobes SDT code	2018-12-06 10:35:19 -08:00
gcov
irq	irq/matrix: Fix memory overallocation	2018-11-01 10:00:38 +01:00
livepatch
locking	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
power	memblock: stop using implicit alignment to SMP_CACHE_BYTES	2018-10-31 08:54:16 -07:00
printk	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
rcu	Merge branches 'doc.2018.08.30a', 'dynticks.2018.08.30b', 'srcu.2018.08.30b' and 'torture.2018.08.29a' into HEAD	2018-08-30 16:12:53 -07:00
sched	Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-12-01 12:35:48 -08:00
time	posix-timers: Fix division by zero bug	2018-12-17 17:35:45 +01:00
trace	While running various ftrace tests on new development code, the kmemleak	2018-12-12 18:15:29 -08:00
.gitignore
acct.c	kernel/acct.c: fix the acct->needcheck check in check_free_space()	2018-01-04 16:45:09 -08:00
async.c
audit.c
audit.h
audit_fsnotify.c	fsnotify: add fsnotify_add_inode_mark() wrappers	2018-05-18 14:58:22 +02:00
audit_tree.c
audit_watch.c
auditfilter.c
auditsc.c	audit/stable-4.18 PR 20180814	2018-08-15 10:46:54 -07:00
backtracetest.c
bounds.c	kbuild: fix kernel/bounds.c 'W=1' warning	2018-10-31 08:54:14 -07:00
capability.c
compat.c	y2038: globally rename compat_time to old_time32	2018-08-27 14:48:48 +02:00
configs.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
context_tracking.c	context_tracking: Switch to new static_branch API	2015-11-24 09:56:43 +01:00
cpu.c	x86/speculation: Rework SMT state change	2018-11-28 11:57:07 +01:00
cpu_pm.c
crash_core.c
crash_dump.c
cred.c
delayacct.c	delayacct: track delays from thrashing cache pages	2018-10-26 16:26:32 -07:00
dma.c
elfcore.c
exec_domain.c
exit.c
extable.c	extable: Make init_kernel_text() global	2018-02-21 16:54:06 +01:00
fail_function.c	kernel/fail_function.c: remove meaningless null pointer check before debugfs_remove_recursive	2018-10-31 08:54:12 -07:00
fork.c	New gcc plugin: stackleak	2018-11-01 11:46:27 -07:00
freezer.c
futex.c	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
futex_compat.c
groups.c
hung_task.c	kernel: hung_task.c: disable on suspend	2018-10-25 18:45:08 +02:00
iomem.c
irq_work.c
jump_label.c	Merge branch 'x86/build' into locking/core, to pick up dependent patches and unify jump-label work	2018-10-16 17:30:11 +02:00
kallsyms.c	kallsyms: reduce size a little on 64-bit	2018-09-10 22:54:33 +09:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c	kernel/kcov.c: mark funcs in __sanitizer_cov_trace_pc() as notrace	2018-11-30 14:56:14 -08:00
kexec.c
kexec_core.c	kexec: Allocate decrypted control pages for kdump if SME is enabled	2018-10-06 12:01:51 +02:00
kexec_file.c	kernel/kexec_file.c: remove some duplicated includes	2018-11-03 10:09:37 -07:00
kexec_internal.h
kmod.c	kmod: move #ifdef CONFIG_MODULES wrapper to Makefile	2017-09-08 18:26:51 -07:00
kprobes.c	kprobes: Don't call BUG_ON() if there is a kprobe in use on free list	2018-09-12 08:01:16 +02:00
ksysfs.c
kthread.c	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-08-13 11:25:07 -07:00
latencytop.c
Makefile	x86/entry: Add STACKLEAK erasing the kernel stack at the end of syscalls	2018-09-04 10:35:47 -07:00
memremap.c	Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax	2018-10-28 11:35:40 -07:00
module-internal.h
module.c	jump_table: Move entries into ro_after_init region	2018-09-27 17:56:49 +02:00
module_signing.c
notifier.c	kernel/notifier.c: simplify expression	2017-02-24 17:46:56 -08:00
nsproxy.c
padata.c	padata: add SPDX identifier	2018-01-05 18:43:00 +11:00
panic.c	kernel/panic.c: filter out a potential trailing newline	2018-10-31 08:54:14 -07:00
params.c
pid.c	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
pid_namespace.c	signal: Use group_send_sig_info to kill all processes in a pid namespace	2018-09-16 16:08:25 +02:00
profile.c	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
ptrace.c	ptrace: Remove unused ptrace_may_access_sched() and MODE_IBRS	2018-11-28 11:57:11 +01:00
range.c
reboot.c	kernel/reboot.c: export pm_power_off_prepare	2018-09-11 16:13:24 +01:00
relay.c
resource.c	resource/docs: Complete kernel-doc style function documentation	2018-11-07 16:47:47 +01:00
rseq.c
seccomp.c	Merge branch 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2018-10-24 11:49:35 +01:00
signal.c	kernel/signal.c: fix a comment error	2018-10-31 08:54:14 -07:00
smp.c	smp,cpumask: introduce on_each_cpu_cond_mask	2018-10-09 16:51:11 +02:00
smpboot.c
smpboot.h
softirq.c	Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-10-25 11:43:47 -07:00
stackleak.c	stackleak: Mark stackleak_track_stack() as notrace	2018-12-05 19:31:44 -08:00
stacktrace.c	stacktrace/x86: add function for detecting reliable stack traces	2017-03-08 09:18:02 +01:00
stop_machine.c
sys.c	kernel/sys.c: remove duplicated include	2018-09-20 22:01:11 +02:00
sys_ni.c
sysctl.c	kernel/sysctl.c: remove duplicated include	2018-11-03 10:09:37 -07:00
sysctl_binary.c
task_work.c
taskstats.c
test_kprobes.c
torture.c
tracepoint.c	tracepoint: Fix tracepoint array element size mismatch	2018-10-17 15:35:29 -04:00
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c	umh: Add command line to user mode helpers	2018-10-22 19:37:36 -07:00
up.c	smp,cpumask: introduce on_each_cpu_cond_mask	2018-10-09 16:51:11 +02:00
user-return-notifier.c
user.c	userns: use irqsave variant of refcount_dec_and_lock()	2018-08-22 10:52:47 -07:00
user_namespace.c	userns: also map extents in the reverse map to kernel IDs	2018-11-07 23:51:16 -06:00
utsname.c
utsname_sysctl.c	sys: don't hold uts_sem while accessing userspace memory	2018-08-11 02:05:53 -05:00
watchdog.c
watchdog_hld.c
workqueue.c
workqueue_internal.h	workqueue: Set worker->desc to workqueue name by default	2018-05-18 08:47:13 -07:00