Kees Cook a18417e27e exit: Use READ_ONCE() for all oops/warn limit reads ... commit 7535b832c6 upstream. Use a temporary variable to take full advantage of READ_ONCE() behavior. Without this, the report (and even the test) might be out of sync with the initial test. Reported-by: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/lkml/Y5x7GXeluFmZ8E0E@hirez.programming.kicks-ass.net Fixes: 9fc9e278a5 ("panic: Introduce warn_limit") Fixes: d4ccd54d28 ("exit: Put an upper limit on how often we can oops") Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Jann Horn <jannh@google.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Petr Mladek <pmladek@suse.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Marco Elver <elver@google.com> Cc: tangmeng <tangmeng@uniontech.com> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-01-24 07:24:41 +01:00
..
bpf	bpf: restore the ebpf program ID for BPF_AUDIT_UNLOAD and PERF_BPF_EVENT_PROG_UNLOAD	2023-01-24 07:24:37 +01:00
cgroup	memcg: Fix possible use-after-free in memcg_write_event_control()	2022-12-08 10:40:58 -08:00
configs
debug
dma	- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in	2022-10-10 17:53:04 -07:00
entry	entry: kmsan: introduce kmsan_unpoison_entry_regs()	2022-10-03 14:03:25 -07:00
events	perf/core: Call LSM hook after copying perf_event_attr	2023-01-07 11:11:46 +01:00
futex	futex: Fix futex_waitv() hrtimer debug object leak on kcalloc error	2023-01-04 11:28:58 +01:00
gcov	gcov: add support for checksum field	2022-12-31 13:33:11 +01:00
irq	genirq/irqdesc: Don't try to remove non-existing sysfs files	2022-12-31 13:31:58 +01:00
kcsan	panic: Consolidate open-coded panic_on_warn checks	2023-01-24 07:24:41 +01:00
livepatch	Livepatching changes for 6.1	2022-10-10 11:36:19 -07:00
locking	rtmutex: Add acquire semantics for rtmutex lock acquisition slow path	2023-01-04 11:28:58 +01:00
module	module: Fix NULL vs IS_ERR checking for module_get_next_page	2022-12-31 13:32:10 +01:00
power	PM: hibernate: Fix mistake in kerneldoc comment	2022-12-31 13:31:55 +01:00
printk
rcu	rcu: Fix __this_cpu_read() lockdep warning in rcu_force_quiescent_state()	2022-12-31 13:32:56 +01:00
sched	panic: Consolidate open-coded panic_on_warn checks	2023-01-24 07:24:41 +01:00
time	treewide: use prandom_u32_max() when possible, part 1	2022-10-11 17:42:55 -06:00
trace	tracing: Fix infinite loop in tracing_read_pipe on overflowed print_trace_line	2023-01-07 11:11:49 +01:00
.gitignore
acct.c	acct: fix potential integer overflow in encode_comp_t()	2022-12-31 13:32:58 +01:00
async.c
audit_fsnotify.c
audit_tree.c
audit_watch.c
audit.c
audit.h
auditfilter.c
auditsc.c	audit/stable-6.1 PR 20221003	2022-10-04 11:05:43 -07:00
backtracetest.c
bounds.c
capability.c
cfi.c
compat.c
configs.c
context_tracking.c
cpu_pm.c
cpu.c	cpu/hotplug: Do not bail-out in DYING/STARTING sections	2022-12-31 13:31:59 +01:00
crash_core.c
crash_dump.c
cred.c
delayacct.c
dma.c
exec_domain.c
exit.c	exit: Use READ_ONCE() for all oops/warn limit reads	2023-01-24 07:24:41 +01:00
extable.c
fail_function.c
fork.c	seccomp: Move copy_seccomp() to no failure path.	2022-12-31 13:31:53 +01:00
freezer.c
gen_kheaders.sh
groups.c
hung_task.c
iomem.c
irq_work.c
jump_label.c
kallsyms_internal.h
kallsyms.c	kcfi updates for v6.1-rc1	2022-10-03 17:11:07 -07:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c	kcov: kmsan: unpoison area->list in kcov_remote_area_put()	2022-10-03 14:03:23 -07:00
kexec_core.c
kexec_elf.c
kexec_file.c
kexec_internal.h
kexec.c
kheaders.c
kmod.c
kprobes.c	kprobes: kretprobe events missing on 2-core KVM guest	2023-01-04 11:28:58 +01:00
ksysfs.c
kthread.c	signal: break out of wait loops on kthread_stop()	2022-10-09 16:01:59 -07:00
latencytop.c
Makefile	cfi: Fix CFI failure with KASAN	2022-12-31 13:33:08 +01:00
module_signature.c
notifier.c
nsproxy.c
padata.c	padata: Fix list iterator in padata_do_serial()	2022-12-31 13:32:34 +01:00
panic.c	exit: Use READ_ONCE() for all oops/warn limit reads	2023-01-24 07:24:41 +01:00
params.c
pid_namespace.c
pid.c
profile.c
ptrace.c
range.c
reboot.c	kernel/reboot: Add SYS_OFF_MODE_RESTART_PREPARE mode	2022-10-04 15:59:36 +02:00
regset.c
relay.c	relay: fix type mismatch when allocating memory in relay_create_buf()	2022-12-31 13:32:00 +01:00
resource_kunit.c
resource.c
rseq.c	rseq: Use pr_warn_once() when deprecated/unknown ABI flags are encountered	2022-11-14 09:58:32 +01:00
scftorture.c
scs.c
seccomp.c
signal.c	Scheduler changes for v6.1:	2022-10-10 09:10:28 -07:00
smp.c	bitmap patches for v6.1-rc1	2022-10-10 12:49:34 -07:00
smpboot.c
smpboot.h
softirq.c
stackleak.c
stacktrace.c
static_call_inline.c
static_call.c
stop_machine.c
sys_ni.c
sys.c	prlimit: do_prlimit needs to have a speculation check	2023-01-24 07:24:34 +01:00
sysctl-test.c
sysctl.c	proc: proc_skip_spaces() shouldn't think it is working on C strings	2022-12-05 12:09:06 -08:00
task_work.c
taskstats.c
torture.c
tracepoint.c
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c
up.c
user_namespace.c	ucounts: Split rlimit and ucount values and max values	2022-10-09 16:24:05 -07:00
user-return-notifier.c
user.c
usermode_driver.c
utsname_sysctl.c	kernel/utsname_sysctl.c: Fix hostname polling	2022-10-23 12:01:01 -07:00
utsname.c
watch_queue.c
watchdog_hld.c
watchdog.c
workqueue_internal.h
workqueue.c	kcfi updates for v6.1-rc1	2022-10-03 17:11:07 -07:00