Michal Koutný da9de0b714 cgroup: Remove duplicates in cgroup v1 tasks file ... commit 1ca0b60515 upstream. One PID may appear multiple times in a preloaded pidlist. (Possibly due to PID recycling but we have reports of the same task_struct appearing with different PIDs, thus possibly involving transfer of PID via de_thread().) Because v1 seq_file iterator uses PIDs as position, it leads to a message: > seq_file: buggy .next function kernfs_seq_next did not update position index Conservative and quick fix consists of removing duplicates from `tasks` file (as opposed to removing pidlists altogether). It doesn't affect correctness (it's sufficient to show a PID once), performance impact would be hidden by unconditional sorting of the pidlist already in place (asymptotically). Link: https://lore.kernel.org/r/20230823174804.23632-1-mkoutny@suse.com/ Suggested-by: Firo Yang <firo.yang@suse.com> Signed-off-by: Michal Koutný <mkoutny@suse.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-10-19 23:11:06 +02:00
..
bpf	bpf: Fix verifier log for async callback return values	2023-10-19 23:11:00 +02:00
cgroup	cgroup: Remove duplicates in cgroup v1 tasks file	2023-10-19 23:11:06 +02:00
configs	mm/slab: rename CONFIG_SLAB to CONFIG_SLAB_DEPRECATED	2023-05-26 19:01:47 +02:00
debug	kdb: move kdb_send_sig() declaration to a better header file	2023-07-03 09:27:12 +01:00
dma	dma-debug: don't call __dma_entry_alloc_check_leak() under free_entries_lock	2023-10-06 13:16:07 +02:00
entry	ptrace: Provide set/get interface for syscall user dispatch	2023-04-16 14:23:07 +02:00
events	cxl for v6.5	2023-07-01 08:58:41 -07:00
futex	- Prevent the leaking of a debug timer in futex_waitv()	2023-01-01 11:15:05 -08:00
gcov	gcov: add support for checksum field	2022-12-21 14:31:52 -08:00
irq	genirq: Fix software resend lockup and nested resend	2023-08-26 19:14:31 +02:00
kcsan	kcsan: Don't expect 64 bits atomic builtins from 32 bits architectures	2023-06-09 23:29:50 +10:00
livepatch	livepatch: Make 'klp_stack_entries' static	2023-06-05 13:56:52 +02:00
locking	lockdep: fix static memory detection even more	2023-09-02 09:13:30 +02:00
module	modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules	2023-09-06 21:22:22 +01:00
power	PM: hibernate: Fix the exclusive get block device in test_resume mode	2023-09-23 11:14:32 +02:00
printk	printk: Rename abandon_console_lock_in_panic() to other_cpu_in_panic()	2023-09-23 11:14:30 +02:00
rcu	rcuscale: Move rcu_scale_writer() schedule_timeout_uninterruptible() to _idle()	2023-09-23 11:14:18 +02:00
sched	sched/rt: Fix live lock between select_fallback_rq() and RT push	2023-10-06 13:16:23 +02:00
time	tick/rcu: Fix false positive "softirq work is pending" messages	2023-09-13 09:53:45 +02:00
trace	tracing/user_events: Align set_bit() address for all archs	2023-10-06 13:16:28 +02:00
.gitignore
acct.c	acct: fix potential integer overflow in encode_comp_t()	2022-11-30 16:13:18 -08:00
async.c
audit.c
audit.h	audit: avoid missing-prototype warnings	2023-05-17 11:34:55 -04:00
audit_fsnotify.c
audit_tree.c
audit_watch.c
auditfilter.c
auditsc.c	netfilter: nf_tables: Audit log rule reset	2023-09-19 12:30:16 +02:00
backtracetest.c
bounds.c
capability.c	capability: fix kernel-doc warnings in capability.c	2023-05-22 14:30:52 -04:00
cfi.c
compat.c	sched_getaffinity: don't assume 'cpumask_size()' is fully initialized	2023-03-14 19:32:38 -07:00
configs.c
context_tracking.c	locking/atomic: treewide: use raw_atomic*_<op>()	2023-06-05 09:57:20 +02:00
cpu.c	cpu/hotplug: Prevent self deadlock on CPU hot-unplug	2023-09-13 09:53:50 +02:00
cpu_pm.c	cpuidle, cpu_pm: Remove RCU fiddling from cpu_pm_{enter,exit}()	2023-01-13 11:48:15 +01:00
crash_core.c	mm, treewide: redefine MAX_ORDER sanely	2023-04-05 19:42:46 -07:00
crash_dump.c
cred.c	cred: Do not default to init_cred in prepare_kernel_cred()	2022-11-01 10:04:52 -07:00
delayacct.c	delayacct: track delays from IRQ/SOFTIRQ	2023-04-18 16:39:34 -07:00
dma.c
exec_domain.c
exit.c	fork, vhost: Use CLONE_THREAD to fix freezer/ps regression	2023-06-01 17:15:33 -04:00
extable.c
fail_function.c	kernel/fail_function: fix memory leak with using debugfs_lookup()	2023-02-08 13:36:22 +01:00
fork.c	kernel/fork: beware of __put_task_struct() calling context	2023-09-23 11:14:17 +02:00
freezer.c
gen_kheaders.sh	Revert "kheaders: substituting --sort in archive creation"	2023-05-28 16:20:21 +09:00
groups.c
hung_task.c	kernel/hung_task.c: set some hung_task.c variables storage-class-specifier to static	2023-04-08 13:45:37 -07:00
iomem.c
irq_work.c	trace: Add trace_ipi_send_cpu()	2023-03-24 11:01:29 +01:00
jump_label.c	jump_label: Prevent key->enabled int overflow	2022-12-01 15:53:05 -08:00
kallsyms.c	kallsyms: Fix kallsyms_selftest failure	2023-09-02 09:13:30 +02:00
kallsyms_internal.h	kallsyms: Reduce the memory occupied by kallsyms_seqs_of_names[]	2022-11-12 18:47:36 -08:00
kallsyms_selftest.c	kallsyms: Fix kallsyms_selftest failure	2023-09-02 09:13:30 +02:00
kallsyms_selftest.h	kallsyms: Add self-test facility	2022-11-15 00:42:02 -08:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c	kcov: add prototypes for helper functions	2023-06-09 17:44:17 -07:00
kexec.c	kexec: introduce sysctl parameters kexec_load_limit_*	2023-02-02 22:50:05 -08:00
kexec_core.c	kexec: enable kexec_crash_size to support two crash kernel regions	2023-06-09 17:44:24 -07:00
kexec_elf.c
kexec_file.c	- Arnd Bergmann has fixed a bunch of -Wmissing-prototypes in	2023-06-28 10:59:38 -07:00
kexec_internal.h
kheaders.c	kheaders: Use array declaration instead of char	2023-03-24 20:10:59 -07:00
kprobes.c	kprobes: Prohibit probing on CFI preamble symbol	2023-07-29 23:32:26 +09:00
ksyms_common.c	kallsyms: make kallsyms_show_value() as generic function	2023-06-08 12:27:20 -07:00
ksysfs.c	kernel/ksysfs.c: use sysfs_emit for sysfs show handlers	2023-03-24 17:09:14 +01:00
kthread.c	- Arnd Bergmann has fixed a bunch of -Wmissing-prototypes in	2023-06-28 10:59:38 -07:00
latencytop.c
Makefile	v6.5-rc1-modules-next	2023-06-28 15:51:08 -07:00
module_signature.c
notifier.c	notifiers: add tracepoints to the notifiers infrastructure	2023-04-08 13:45:38 -07:00
nsproxy.c	convert setns(2) to fdget()/fdput()	2023-04-20 22:55:35 -04:00
padata.c	padata: use alignment when calculating the number of worker threads	2023-03-14 17:06:44 +08:00
panic.c	panic: Reenable preemption in WARN slowpath	2023-09-23 11:14:33 +02:00
params.c	kallsyms: Replace all non-returning strlcpy with strscpy	2023-06-14 12:27:38 -07:00
pid.c	memfd: replace ratcheting feature from vm.memfd_noexec with hierarchy	2023-09-13 09:53:57 +02:00
pid_namespace.c	memfd: replace ratcheting feature from vm.memfd_noexec with hierarchy	2023-09-13 09:53:57 +02:00
pid_sysctl.h	memfd: replace ratcheting feature from vm.memfd_noexec with hierarchy	2023-09-13 09:53:57 +02:00
profile.c
ptrace.c	ptrace: Provide set/get interface for syscall user dispatch	2023-04-16 14:23:07 +02:00
range.c
reboot.c
regset.c
relay.c	relayfs: fix out-of-bounds access in relay_file_read	2023-05-02 17:23:27 -07:00
resource.c	dax/kmem: Fix leak of memory-hotplug resources	2023-02-17 14:58:01 -08:00
resource_kunit.c
rseq.c	rseq: Extend struct rseq with per-memory-map concurrency ID	2022-12-27 12:52:12 +01:00
scftorture.c	scftorture: Forgive memory-allocation failure if KASAN	2023-09-23 11:14:18 +02:00
scs.c	scs: add support for dynamic shadow call stacks	2022-11-09 18:06:35 +00:00
seccomp.c	seccomp: simplify sysctls with register_sysctl_init()	2023-04-13 11:49:20 -07:00
signal.c	mm: suppress mm fault logging if fatal signal already pending	2023-07-26 10:51:59 -07:00
smp.c	trace,smp: Add tracepoints for scheduling remotelly called functions	2023-06-16 22:08:09 +02:00
smpboot.c	cpu/hotplug: Remove unused state functions	2023-05-15 13:45:00 +02:00
smpboot.h
softirq.c	Revert "softirq: Let ksoftirqd do its job"	2023-05-09 21:50:27 +02:00
stackleak.c	stackleak: allow to specify arch specific stackleak poison function	2023-04-20 11:36:35 +02:00
stacktrace.c
static_call.c
static_call_inline.c	static_call: Add call depth tracking support	2022-10-17 16:41:16 +02:00
stop_machine.c
sys.c	prctl: move PR_GET_AUXV out of PR_MCE_KILL	2023-07-17 12:53:21 -07:00
sys_ni.c	asm-generic updates for 6.5	2023-07-06 10:06:04 -07:00
sysctl-test.c
sysctl.c	v6.5-rc1-sysctl-next	2023-06-28 16:05:21 -07:00
task_work.c
taskstats.c
torture.c	torture: Fix hang during kthread shutdown phase	2023-01-05 12:10:35 -08:00
tracepoint.c	tracepoint: Allow livepatch module add trace event	2023-02-18 14:34:36 -05:00
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c	sysctl: fix unused proc_cap_handler() function warning	2023-06-29 15:19:43 -07:00
up.c
user-return-notifier.c
user.c	kernel/user: Allow user_struct::locked_vm to be usable for iommufd	2022-11-30 20:16:49 -04:00
user_namespace.c	userns: fix a struct's kernel-doc notation	2023-02-02 22:50:04 -08:00
usermode_driver.c
utsname.c
utsname_sysctl.c	utsname: simplify one-level sysctl registration for uts_kern_table	2023-04-13 11:49:35 -07:00
vhost_task.c	vhost: Fix worker hangs due to missed wake up calls	2023-06-08 15:43:09 -04:00
watch_queue.c	watch_queue: prevent dangling pipe pointer	2023-06-06 10:47:04 +02:00
watchdog.c	watchdog/hardlockup: avoid large stack frames in watchdog_hardlockup_check()	2023-09-13 09:53:08 +02:00
watchdog_buddy.c	watchdog/hardlockup: move SMP barriers from common code to buddy code	2023-06-19 16:25:28 -07:00
watchdog_perf.c	watchdog/perf: add a weak function for an arch to detect if perf can use NMIs	2023-06-09 17:44:21 -07:00
workqueue.c	workqueue: Override implicit ordered attribute in workqueue_apply_unbound_cpumask()	2023-10-19 23:11:01 +02:00
workqueue_internal.h	workqueue: Automatically mark CPU-hogging work items CPU_INTENSIVE	2023-05-17 17:02:08 -10:00