Catalin Marinas b88cc37a82 rcu: kmemleak: Ignore kmemleak false positives when RCU-freeing objects ... commit 5f98fd034c upstream. Since the actual slab freeing is deferred when calling kvfree_rcu(), so is the kmemleak_free() callback informing kmemleak of the object deletion. From the perspective of the kvfree_rcu() caller, the object is freed and it may remove any references to it. Since kmemleak does not scan RCU internal data storing the pointer, it will report such objects as leaks during the grace period. Tell kmemleak to ignore such objects on the kvfree_call_rcu() path. Note that the tiny RCU implementation does not have such issue since the objects can be tracked from the rcu_ctrlblk structure. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Reported-by: Christoph Paasch <cpaasch@apple.com> Closes: https://lore.kernel.org/all/F903A825-F05F-4B77-A2B5-7356282FBA2C@apple.com/ Cc: <stable@vger.kernel.org> Tested-by: Christoph Paasch <cpaasch@apple.com> Reviewed-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org> Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-11-28 17:20:02 +00:00
..
bpf	bpf: Fix precision tracking for BPF_ALU | BPF_TO_BE | BPF_END	2023-11-28 17:19:55 +00:00
cgroup	sched: psi: fix unprivileged polling against cgroups	2023-11-28 17:19:56 +00:00
configs	Kbuild updates for v6.6	2023-09-05 11:01:47 -07:00
debug	kgdb: Flush console before entering kgdb on panic	2023-11-28 17:19:47 +00:00
dma	swiotlb: do not try to allocate a TLB bigger than MAX_ORDER pages	2023-10-25 16:26:20 +02:00
entry	entry: Remove empty addr_limit_user_check()	2023-08-23 10:32:39 +02:00
events	perf/core: Fix cpuctx refcounting	2023-11-28 17:19:54 +00:00
futex	futex: Don't include process MM in futex key on no-MMU	2023-11-20 11:58:53 +01:00
gcov	gcov: shut up missing prototype warnings for internal stubs	2023-08-18 10:18:58 -07:00
irq	genirq/generic_chip: Make irq_remove_generic_chip() irqdomain aware	2023-11-28 17:19:59 +00:00
kcsan	kcsan: Don't expect 64 bits atomic builtins from 32 bits architectures	2023-06-09 23:29:50 +10:00
livepatch	livepatch: Fix missing newline character in klp_resolve_symbols()	2023-11-20 11:59:25 +01:00
locking	locking/ww_mutex/test: Fix potential workqueue corruption	2023-11-28 17:19:35 +00:00
module	module/decompress: use kvmalloc() consistently	2023-11-20 11:59:37 +01:00
power	PM: hibernate: Clean up sync_read handling in snapshot_write_next()	2023-11-28 17:20:02 +00:00
printk	Merge branch 'rework/misc-cleanups' into for-linus	2023-10-11 12:58:14 +02:00
rcu	rcu: kmemleak: Ignore kmemleak false positives when RCU-freeing objects	2023-11-28 17:20:02 +00:00
sched	sched/core: Fix RQCF_ACT_SKIP leak	2023-11-28 17:19:59 +00:00
time	Fix false positive "softirq work is pending" messages on -rt	2023-09-02 09:01:48 -07:00
trace	tracing/kprobes: Fix the order of argument descriptions	2023-11-20 11:59:38 +01:00
.gitignore
acct.c	audit/stable-6.6 PR 20230829	2023-08-30 08:17:35 -07:00
async.c
audit.c	audit: move trailing statements to next line	2023-08-15 18:16:14 -04:00
audit.h	audit: correct audit_filter_inodes() definition	2023-07-21 12:17:25 -04:00
audit_fsnotify.c
audit_tree.c
audit_watch.c	audit: don't WARN_ON_ONCE(!current->mm) in audit_exe_compare()	2023-11-28 17:19:56 +00:00
auditfilter.c	audit: move trailing statements to next line	2023-08-15 18:16:14 -04:00
auditsc.c	audit,io_uring: io_uring openat triggers audit reference count underflow	2023-10-13 18:34:46 +02:00
backtracetest.c
bounds.c
capability.c	lsm: constify the 'target' parameter in security_capget()	2023-08-08 16:48:47 -04:00
cfi.c
compat.c
configs.c
context_tracking.c	locking/atomic: treewide: use raw_atomic*_<op>()	2023-06-05 09:57:20 +02:00
cpu.c	cpu/hotplug: Don't offline the last non-isolated CPU	2023-11-28 17:19:36 +00:00
cpu_pm.c
crash_core.c	Crash: add lock to serialize crash hotplug handling	2023-09-29 17:20:48 -07:00
crash_dump.c
cred.c	cred: convert printks to pr_<level>	2023-08-18 10:18:49 -07:00
delayacct.c
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
fork.c	percpu: changes for v6.6	2023-09-01 15:44:45 -07:00
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
iomem.c	kernel/iomem.c: remove __weak ioremap_cache helper	2023-08-21 13:37:28 -07:00
irq_work.c
jump_label.c
kallsyms.c	kallsyms: Change func signature for cleanup_symbol_name()	2023-08-25 15:00:36 -07:00
kallsyms_internal.h
kallsyms_selftest.c	Modules changes for v6.6-rc1	2023-08-29 17:32:32 -07:00
kallsyms_selftest.h
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.kexec	crash: hotplug support for kexec_load()	2023-08-24 16:25:14 -07:00
Kconfig.locks
Kconfig.preempt
kcov.c	kcov: add prototypes for helper functions	2023-06-09 17:44:17 -07:00
kexec.c	kernel: kexec: copy user-array safely	2023-11-28 17:19:40 +00:00
kexec_core.c	crash: add generic infrastructure for crash hotplug support	2023-08-24 16:25:13 -07:00
kexec_elf.c
kexec_file.c	integrity-v6.6	2023-08-30 09:16:56 -07:00
kexec_internal.h
kheaders.c
kprobes.c	kernel: kprobes: Use struct_size()	2023-08-23 09:38:17 +09:00
ksyms_common.c	kallsyms: make kallsyms_show_value() as generic function	2023-06-08 12:27:20 -07:00
ksysfs.c	crash: hotplug support for kexec_load()	2023-08-24 16:25:14 -07:00
kthread.c	kthread: unexport __kthread_should_park()	2023-08-18 10:18:59 -07:00
latencytop.c
Makefile	v6.5-rc1-modules-next	2023-06-28 15:51:08 -07:00
module_signature.c
notifier.c
nsproxy.c	nsproxy: Convert nsproxy.count to refcount_t	2023-08-21 11:29:12 -07:00
padata.c	crypto: pcrypt - Fix hungtask for PADATA_RESET	2023-11-28 17:19:42 +00:00
panic.c	panic: Reenable preemption in WARN slowpath	2023-09-15 11:28:08 +02:00
params.c	kernel: params: Remove unnecessary ‘0’ values from err	2023-07-10 12:47:01 -07:00
pid.c	pidfd: prevent a kernel-doc warning	2023-09-19 13:21:33 -07:00
pid_namespace.c	memfd: replace ratcheting feature from vm.memfd_noexec with hierarchy	2023-08-21 13:37:59 -07:00
pid_sysctl.h	memfd: replace ratcheting feature from vm.memfd_noexec with hierarchy	2023-08-21 13:37:59 -07:00
profile.c
ptrace.c
range.c
reboot.c
regset.c
relay.c	kernel: relay: remove unnecessary NULL values from relay_open_buf	2023-08-18 10:18:55 -07:00
resource.c
resource_kunit.c
rseq.c
scftorture.c	scftorture: Pause testing after memory-allocation failure	2023-07-14 15:02:57 -07:00
scs.c
seccomp.c	seccomp: Add missing kerndoc notations	2023-08-17 12:32:15 -07:00
signal.c	signal: print comm and exe name on fatal signals	2023-08-18 10:18:50 -07:00
smp.c	smp,csd: Throw an error if a CSD lock is stuck for too long	2023-11-28 17:19:36 +00:00
smpboot.c	cpu/hotplug: Remove unused state functions	2023-05-15 13:45:00 +02:00
smpboot.h
softirq.c	sched/core: introduce sched_core_idle_cpu()	2023-07-13 15:21:50 +02:00
stackleak.c
stacktrace.c
static_call.c
static_call_inline.c
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	x86/shstk: Introduce map_shadow_stack syscall	2023-08-02 15:01:51 -07:00
sysctl-test.c
sysctl.c	v6.5-rc1-sysctl-next	2023-06-28 16:05:21 -07:00
task_work.c	task_work: add kerneldoc annotation for 'data' argument	2023-09-19 13:21:32 -07:00
taskstats.c
torture.c	torture: Stop right-shifting torture_random() return values	2023-08-14 15:01:08 -07:00
tracepoint.c
tsacct.c
ucount.c	sysctl: Add size to register_sysctl	2023-08-15 15:26:17 -07:00
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
user_namespace.c
usermode_driver.c
utsname.c
utsname_sysctl.c
vhost_task.c	vhost: Fix worker hangs due to missed wake up calls	2023-06-08 15:43:09 -04:00
watch_queue.c	kernel: watch_queue: copy user-array safely	2023-11-28 17:19:40 +00:00
watchdog.c	watchdog: move softlockup_panic back to early_param	2023-11-28 17:19:57 +00:00
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: Provide one lock class key per work_on_cpu() callsite	2023-11-28 17:19:36 +00:00
workqueue_internal.h	workqueue: Drop the special locking rule for worker->flags and worker_pool->flags	2023-08-07 15:57:22 -10:00