FYI, we noticed the following commit: commit: 2ebdfecef50840a9c6fd6a2236a1bdf2942dc1a7 ("Input: axp20x-pek - use driver_data of platform_device_id instead of extended attributes") https://git.kernel.org/cgit/linux/kernel/git/dtor/input.git next in testcase: boot on test machine: qemu-system-x86_64 -enable-kvm -smp 2 -m 512M caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): +------------------------------------------------------------------+------------+------------+ | | 64954e3442 | 2ebdfecef5 | +------------------------------------------------------------------+------------+------------+ | boot_successes | 16 | 0 | | boot_failures | 0 | 14 | | BUG:KASAN:global-out-of-bounds | 0 | 12 | | invoked_oom-killer:gfp_mask=0x | 0 | 2 | | Mem-Info | 0 | 2 | | Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 0 | 2 | +------------------------------------------------------------------+------------+------------+ [ 3.472769] BUG: KASAN: global-out-of-bounds in platform_match+0x26b/0x2a3 [ 3.475058] Read of size 1 at addr ffffffff84d9dd00 by task swapper/1 [ 3.477290] [ 3.479003] CPU: 0 PID: 1 Comm: swapper Not tainted 4.12.0-00069-g2ebdfec #1 [ 3.481349] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014 [ 3.484077] Call Trace: [ 3.485913] dump_stack+0x19/0x1b [ 3.487820] print_address_description+0x1d1/0x2aa [ 3.489872] ? platform_match+0x26b/0x2a3 [ 3.491858] kasan_report+0x212/0x32a [ 3.493729] __asan_report_load1_noabort+0x14/0x16 [ 3.495745] platform_match+0x26b/0x2a3 [ 3.497671] ? driver_probe_device+0xc7f/0xc7f [ 3.499682] __driver_attach+0x67/0x1e0 [ 3.501626] bus_for_each_dev+0x114/0x1ae [ 3.503596] ? bus_remove_file+0xc3/0xc3 [ 3.505535] ? kasan_unpoison_shadow+0x35/0x43 [ 3.507521] driver_attach+0x38/0x49 [ 3.509423] bus_add_driver+0x3dc/0x72b [ 3.511369] ? regulator_haptic_driver_init+0x14/0x14 [ 3.513483] driver_register+0x187/0x3b5 [ 3.515471] ? regulator_haptic_driver_init+0x14/0x14 [ 3.517597] __platform_driver_register+0xcc/0x119 [ 3.519711] axp20x_pek_driver_init+0x12/0x14 [ 3.521789] do_one_initcall+0x110/0x1df [ 3.523791] ? start_kernel+0x538/0x538 [ 3.525754] kernel_init_freeable+0x265/0x2f5 [ 3.527796] ? rest_init+0xa2/0xa2 [ 3.529716] kernel_init+0xe/0x115 [ 3.531604] ? rest_init+0xa2/0xa2 [ 3.533465] ret_from_fork+0x25/0x30 [ 3.535305] [ 3.536862] The buggy address belongs to the variable: [ 3.538824] 0xffffffff84d9dd00 [ 3.540565] [ 3.542120] Memory state around the buggy address: [ 3.544082] ffffffff84d9dc00: 01 fa fa fa fa fa fa fa 00 00 00 00 07 fa fa fa [ 3.546323] ffffffff84d9dc80: fa fa fa fa 00 fa fa fa fa fa fa fa 00 00 00 00 [ 3.548536] >ffffffff84d9dd00: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 00 [ 3.550722] ^ [ 3.552445] ffffffff84d9dd80: 00 00 00 00 00 00 00 00 00 00 00 fa fa fa fa fa [ 3.554648] ffffffff84d9de00: 00 00 00 00 00 fa fa fa fa fa fa fa 00 01 fa fa [ 3.556827] ================================================================== [ 3.559008] Disabling lock debugging due to kernel taint [ 3.561224] usbcore: registered new interface driver yealink [ 3.563226] ideapad_slidebar: DMI does not match [ 3.565389] rtc_cmos 00:00: RTC can wake from S4 [ 3.567433] rtc rtc0: alarm rollover: day [ 3.569376] rtc rtc0: rtc_cmos: dev (251:0) [ 3.571146] rtc_cmos 00:00: rtc core: registered rtc_cmos as rtc0 [ 3.573325] rtc_cmos 00:00: alarms up to one day, y3k, 114 bytes nvram, hpet irqs [ 3.576273] rtc rtc1: alarm rollover: day [ 3.578100] rtc rtc1: test: dev (251:1) [ 3.579747] rtc-test rtc-test.0: rtc core: registered test as rtc1 [ 3.581804] rtc rtc2: alarm rollover: day [ 3.583634] rtc rtc2: test: dev (251:2) [ 3.585288] rtc-test rtc-test.1: rtc core: registered test as rtc2 [ 3.587391] i2c /dev entries driver [ 3.589634] i2c-parport: adapter type unspecified [ 3.591422] i2c-parport-light: adapter type unspecified [ 3.593291] usbcore: registered new interface driver RobotFuzz Open Source InterFace, OSIF [ 3.595572] usbcore: registered new interface driver i2c-tiny-usb [ 3.597814] saa7146: register extension 'Multimedia eXtension Board' [ 3.599871] saa7146: register extension 'hexium HV-PCI6 Orion' [ 3.601859] saa7146: register extension 'hexium gemini' [ 3.603770] cx25821: driver version 0.0.106 loaded [ 3.605827] pps pps0: new PPS source ktimer [ 3.607615] pps pps0: ktimer PPS source registered [ 3.609427] pps_ldisc: PPS line discipline registered [ 3.611274] Driver for 1-wire Dallas network protocol. [ 3.613412] __power_supply_register: Expected proper parent device for 'test_ac' [ 3.615641] __power_supply_register: Expected proper parent device for 'test_battery' [ 3.618031] (NULL device *): hwmon_device_register() is deprecated. Please convert the driver to use hwmon_device_register_with_info(). [ 3.622214] __power_supply_register: Expected proper parent device for 'test_usb' [ 3.625566] applesmc: supported laptop not found! [ 3.627573] applesmc: driver init failed (ret=-19)! [ 3.631045] pc87360: PC8736x not detected, module not inserted [ 3.633253] sch56xx_common: Unsupported device id: 0xff [ 3.635445] sch56xx_common: Unsupported device id: 0xff [ 3.638341] ib700wdt: WDT driver for IB700 single board computer initialising [ 3.640883] wafer5823wdt: WDT driver for Wafer 5823 single board computer initialising [ 3.643838] wafer5823wdt: I/O address 0x0443 already in use [ 3.646052] it87_wdt: no device [ 3.647972] sc1200wdt: build 20020303 [ 3.649909] sc1200wdt: io parameter must be specified [ 3.652029] sbc60xxwdt: I/O address 0x0443 already in use [ 3.654212] machzwd: MachZ ZF-Logic Watchdog driver initializing [ 3.656409] machzwd: no ZF-Logic found [ 3.658349] sbc_epx_c3: cannot register miscdev on minor=130 (err=-16) [ 3.661002] CHRDEV "ttySDIO" major number 223 goes below the dynamic allocation range [ 3.663457] sdhci: Secure Digital Host Controller Interface driver [ 3.665684] sdhci: Copyright(c) Pierre Ossman [ 3.667696] wbsd: Winbond W83L51xD SD/MMC card interface driver [ 3.669890] wbsd: Copyright(c) Pierre Ossman [ 3.672011] VUB300 Driver rom wait states = 1C irqpoll timeout = 0400 [ 3.672201] usbcore: registered new interface driver vub300 [ 3.676766] usbcore: registered new interface driver ushc [ 3.678946] sdhci-pltfm: SDHCI platform and OF driver helper [ 3.682070] ledtrig-cpu: registered to indicate activity on CPUs [ 3.684771] dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2) [ 3.688095] CHRDEV "hidraw" major number 222 goes below the dynamic allocation range To reproduce: git clone https://github.com/01org/lkp-tests.git cd lkp-tests bin/lkp qemu -k job-script # job-script is attached in this email Thanks, Xiaolong