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Wysocki" Organization: Intel Technology Poland Sp. z o. o., KRS 101882, ul. 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bh=pwrKLA12gKmsha7zJwZbXhNyv6G1ECC5TZqV0A8FgH0=; b=DHwnTtcKqc2cQFpK0muhGa6S6q9ktuFxeMsdDZQIfxLEdjc1L2lCSl5CCK7hfWBE1DAhRc jPvAdVoXsc3dL01ctguDy4hbsOTiwZpIaWnLGpnfxpxv0A9pgKnJ4NmFQBMeOsFibrTpY+ D7wT688OJLf6HyqhiwynPOt+SW93A6o= X-Stat-Signature: d57nonz9jjprxsgcxhpwetdfjwxndrb4 X-Rspamd-Queue-Id: 9789C2015D Authentication-Results: imf31.hostedemail.com; dkim=none ("invalid DKIM record") header.d=intel.com header.s=Intel header.b="Hb5/6Tt0"; spf=pass (imf31.hostedemail.com: domain of rafael.j.wysocki@intel.com designates 134.134.136.100 as permitted sender) smtp.mailfrom=rafael.j.wysocki@intel.com; dmarc=pass (policy=none) header.from=intel.com; arc=reject ("signature check failed: fail, {[1] = sig:microsoft.com:reject}") X-Rspam-User: X-Rspamd-Server: rspam01 X-HE-Tag: 1659977705-924171 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000017, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hi Sakari, On 8/7/2022 2:45 PM, kernel test robot wrote: > > Greeting, > > FYI, we noticed the following commit (built with gcc-11): > > commit: 1d52f10917a751f90e269a0ed9b6cca60dbe0300 ("ACPI: property: Tie data nodes to acpi handles") > https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master > > in testcase: xsave-test > version: xsave-test-x86_64-c2e44fa-1_20220609 > with following parameters: > > ucode: 0xec > > > > on test machine: 12 threads 1 sockets Intel(R) Core(TM) i7-8700 CPU @ 3.20GHz with 16G memory > > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): > > > > If you fix the issue, kindly add following tag > Reported-by: kernel test robot The crash below occurs right after a "Can't tag data node" message from acpi_tie_nondev_subnodes() and I'm really unsure why acpi_attach_data() has failed here, because none of the arguments is NULL. Can you have a look at this, please? > > [ 1.735553][ T1] BUG: KASAN: use-after-free in strlen (lib/string.c:487) > [ 1.735787][ T1] Read of size 1 at addr ffff8881036e8820 by task swapper/0/1 > [ 1.735787][ T1] > [ 1.735787][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.19.0-rc8-00002-g1d52f10917a7 #1 > [ 1.735787][ T1] Hardware name: Dell Inc. Vostro 3670/0HVPDY, BIOS 1.5.11 12/24/2018 > [ 1.735787][ T1] Call Trace: > [ 1.735787][ T1] > [ 1.735787][ T1] ? strlen (lib/string.c:487) > [ 1.735787][ T1] dump_stack_lvl (lib/dump_stack.c:107 (discriminator 1)) > [ 1.735787][ T1] print_address_description+0x1f/0x200 > [ 1.735787][ T1] ? strlen (lib/string.c:487) > [ 1.735787][ T1] print_report.cold (mm/kasan/report.c:430) > [ 1.735787][ T1] ? acpi_ns_opens_scope (drivers/acpi/acpica/nsutils.c:638) > [ 1.735787][ T1] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:202 include/linux/atomic/atomic-instrumented.h:543 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:185 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) > [ 1.735787][ T1] kasan_report (mm/kasan/report.c:162 mm/kasan/report.c:493) > [ 1.735787][ T1] ? strlen (lib/string.c:487) > [ 1.735787][ T1] strlen (lib/string.c:487) > [ 1.735787][ T1] kstrdup (mm/util.c:61) > [ 1.735787][ T1] kobject_set_name_vargs (lib/kobject.c:257) > [ 1.735787][ T1] ? kobject_init (arch/x86/include/asm/atomic.h:41 include/linux/atomic/atomic-instrumented.h:42 include/linux/refcount.h:136 include/linux/kref.h:31 lib/kobject.c:184 lib/kobject.c:180 lib/kobject.c:336) > [ 1.735787][ T1] kobject_init_and_add (lib/kobject.c:353 lib/kobject.c:441) > [ 1.735787][ T1] ? kobject_create_and_add (lib/kobject.c:434) > [ 1.735787][ T1] ? acpi_get_data (drivers/acpi/acpica/nsxfname.c:48) > [ 1.735787][ T1] ? sysfs_create_file_ns (fs/sysfs/file.c:347) > [ 1.735787][ T1] acpi_expose_nondev_subnodes (drivers/acpi/device_sysfs.c:100) > [ 1.735787][ T1] acpi_device_setup_files (drivers/acpi/device_sysfs.c:598) > [ 1.735787][ T1] ? acpi_device_uevent_modalias (drivers/acpi/device_sysfs.c:517) > [ 1.735787][ T1] __acpi_device_add (drivers/acpi/scan.c:745) > [ 1.735787][ T1] ? acpi_add_id (drivers/acpi/scan.c:460) > [ 1.735787][ T1] ? acpi_scan_check_dep (drivers/acpi/scan.c:674) > [ 1.735787][ T1] ? up (include/linux/list.h:292 kernel/locking/semaphore.c:188) > [ 1.735787][ T1] ? acpi_ns_attach_data (drivers/acpi/acpica/nsobject.c:336) > [ 1.735787][ T1] ? acpi_os_signal_semaphore (drivers/acpi/osl.c:1307) > [ 1.735787][ T1] ? acpi_ut_release_mutex (drivers/acpi/acpica/utmutex.c:329) > [ 1.735787][ T1] acpi_add_single_object (drivers/acpi/scan.c:1868) > [ 1.735787][ T1] ? up (include/linux/list.h:292 kernel/locking/semaphore.c:188) > [ 1.735787][ T1] acpi_bus_check_add (drivers/acpi/scan.c:2099) > [ 1.735787][ T1] ? acpi_add_single_object (drivers/acpi/scan.c:2052) > [ 1.735787][ T1] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:202 include/linux/atomic/atomic-instrumented.h:543 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:185 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) > [ 1.735787][ T1] ? _raw_read_unlock_irqrestore (kernel/locking/spinlock.c:161) > [ 1.735787][ T1] ? acpi_scan_match_handler (drivers/acpi/scan.c:1936 drivers/acpi/scan.c:1952) > [ 1.735787][ T1] ? up (include/linux/list.h:292 kernel/locking/semaphore.c:188) > [ 1.735787][ T1] acpi_ns_walk_namespace (drivers/acpi/acpica/nswalk.c:233) > [ 1.735787][ T1] ? acpi_bus_check_add_2 (drivers/acpi/scan.c:2113) > [ 1.735787][ T1] ? acpi_bus_check_add_2 (drivers/acpi/scan.c:2113) > [ 1.735787][ T1] acpi_walk_namespace (drivers/acpi/acpica/nsxfeval.c:606 drivers/acpi/acpica/nsxfeval.c:554) > [ 1.735787][ T1] acpi_bus_scan (drivers/acpi/scan.c:2428) > [ 1.735787][ T1] ? acpi_bus_check_add_1 (drivers/acpi/scan.c:2420) > [ 1.735787][ T1] acpi_scan_init (drivers/acpi/scan.c:2600) > [ 1.735787][ T1] ? acpi_match_madt (drivers/acpi/scan.c:2550) > [ 1.735787][ T1] ? hest_ghes_dev_register (drivers/acpi/apei/hest.c:233) > [ 1.735787][ T1] ? acpi_install_address_space_handler (drivers/acpi/acpica/evxfregn.c:88) > [ 1.735787][ T1] acpi_init (drivers/acpi/bus.c:1405) > [ 1.735787][ T1] ? acpi_bus_init (drivers/acpi/bus.c:1379) > [ 1.735787][ T1] ? acpi_bus_init (drivers/acpi/bus.c:1379) > [ 1.735787][ T1] do_one_initcall (init/main.c:1295) > [ 1.735787][ T1] ? trace_event_raw_event_initcall_level (init/main.c:1286) > [ 1.735787][ T1] ? parse_one (kernel/params.c:170) > [ 1.735787][ T1] ? sysvec_call_function_single (arch/x86/kernel/apic/apic.c:1106) > [ 1.735787][ T1] ? kasan_unpoison (mm/kasan/shadow.c:108 mm/kasan/shadow.c:142) > [ 1.735787][ T1] do_initcalls (init/main.c:1367 init/main.c:1384) > [ 1.735787][ T1] kernel_init_freeable (init/main.c:1614) > [ 1.735787][ T1] ? console_on_rootfs (init/main.c:1581) > [ 1.735787][ T1] ? usleep_range_state (kernel/time/timer.c:1897) > [ 1.735787][ T1] ? _raw_spin_lock_bh (kernel/locking/spinlock.c:169) > [ 1.735787][ T1] ? rest_init (init/main.c:1491) > [ 1.735787][ T1] ? rest_init (init/main.c:1491) > [ 1.735787][ T1] kernel_init (init/main.c:1501) > [ 1.735787][ T1] ret_from_fork (arch/x86/entry/entry_64.S:306) > [ 1.735787][ T1] > [ 1.735787][ T1] > [ 1.735787][ T1] Allocated by task 1: > [ 1.735787][ T1] kasan_save_stack (mm/kasan/common.c:39) > [ 1.735787][ T1] __kasan_kmalloc (mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515 mm/kasan/common.c:524) > [ 1.735787][ T1] acpi_ut_initialize_buffer (drivers/acpi/acpica/utalloc.c:327) > [ 1.735787][ T1] acpi_evaluate_object (drivers/acpi/acpica/nsxfeval.c:400) > [ 1.735787][ T1] acpi_evaluate_object_typed (drivers/acpi/acpica/nsxfeval.c:84) > [ 1.735787][ T1] acpi_init_properties (drivers/acpi/property.c:447) > [ 1.735787][ T1] acpi_init_device_object (drivers/acpi/scan.c:1105 drivers/acpi/scan.c:1790) > [ 1.735787][ T1] acpi_add_single_object (drivers/acpi/scan.c:1844) > [ 1.735787][ T1] acpi_bus_check_add (drivers/acpi/scan.c:2099) > [ 1.735787][ T1] acpi_ns_walk_namespace (drivers/acpi/acpica/nswalk.c:233) > [ 1.735787][ T1] acpi_walk_namespace (drivers/acpi/acpica/nsxfeval.c:606 drivers/acpi/acpica/nsxfeval.c:554) > [ 1.735787][ T1] acpi_bus_scan (drivers/acpi/scan.c:2428) > [ 1.735787][ T1] acpi_scan_init (drivers/acpi/scan.c:2600) > [ 1.735787][ T1] acpi_init (drivers/acpi/bus.c:1405) > [ 1.735787][ T1] do_one_initcall (init/main.c:1295) > [ 1.735787][ T1] do_initcalls (init/main.c:1367 init/main.c:1384) > [ 1.735787][ T1] kernel_init_freeable (init/main.c:1614) > [ 1.735787][ T1] kernel_init (init/main.c:1501) > [ 1.735787][ T1] ret_from_fork (arch/x86/entry/entry_64.S:306) > [ 1.735787][ T1] > [ 1.735787][ T1] Freed by task 1: > [ 1.735787][ T1] kasan_save_stack (mm/kasan/common.c:39) > [ 1.735787][ T1] kasan_set_track (mm/kasan/common.c:45) > [ 1.735787][ T1] kasan_set_free_info (mm/kasan/generic.c:372) > [ 1.735787][ T1] __kasan_slab_free (mm/kasan/common.c:368 mm/kasan/common.c:328 mm/kasan/common.c:374) > [ 1.735787][ T1] kfree (mm/slub.c:1780 mm/slub.c:3536 mm/slub.c:4584) > [ 1.735787][ T1] acpi_init_properties (drivers/acpi/property.c:467) > [ 1.735787][ T1] acpi_init_device_object (drivers/acpi/scan.c:1105 drivers/acpi/scan.c:1790) > [ 1.735787][ T1] acpi_add_single_object (drivers/acpi/scan.c:1844) > > > To reproduce: > > git clone https://github.com/intel/lkp-tests.git > cd lkp-tests > sudo bin/lkp install job.yaml # job file is attached in this email > bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run > sudo bin/lkp run generated-yaml-file > > # if come across any failure that blocks the test, > # please remove ~/.lkp and /lkp dir to run from a clean state. > > >