ci2 starts bisection 2023-10-13 04:13:37.849346868 +0000 UTC m=+27844.682014403
bisecting fixing commit since 9d6bde853685609a631871d7c12be94fdf8d912e
building syzkaller on 4bce1a3e705a8b62de8194bdb28f5eef89c8feec
ensuring issue is reproducible on original commit 9d6bde853685609a631871d7c12be94fdf8d912e
testing commit 9d6bde853685609a631871d7c12be94fdf8d912e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5b7c29f9245ec6af4618ffe284e1583cefe17936b2be96af53617becacce1386
all runs: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
representative crash: KASAN: use-after-free Write in usb_anchor_suspend_wakeups, types: [KASAN]
check whether we can drop unnecessary instrumentation
disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing commit 9d6bde853685609a631871d7c12be94fdf8d912e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 3df7c2302ffb62ea996b3995bdcf6d009b6df1e65adc735c819103d0d120d909
all runs: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
representative crash: KASAN: use-after-free Write in usb_anchor_suspend_wakeups, types: [KASAN]
the bug reproduces without the instrumentation
disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed
kconfig minimization: base=3703 full=7272 leaves diff=1986
split chunks (needed=false): <1986>
split chunk #0 of len 1986 into 5 parts
testing without sub-chunk 1/5
disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed
testing commit 9d6bde853685609a631871d7c12be94fdf8d912e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: f780c64a0c250ef301fc1368511b8b86d5959ca187b89e15d61f3014fa7d168c
run #0: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #1: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #2: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #3: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #4: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #5: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #6: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #7: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #8: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #9: OK
representative crash: KASAN: use-after-free Write in usb_anchor_suspend_wakeups, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit 9d6bde853685609a631871d7c12be94fdf8d912e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 69e768b183b56993f7a4d264b0ef6095cd6b8b823afd497a33044ef658038224
all runs: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
representative crash: KASAN: use-after-free Write in usb_anchor_suspend_wakeups, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed
testing commit 9d6bde853685609a631871d7c12be94fdf8d912e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 171e93cc97a82619ddfe3b3376ac90625472d55ee764ee5b1f4d757219155a15
run #0: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #1: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #2: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #3: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #4: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #5: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #6: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #7: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #8: OK
run #9: OK
representative crash: KASAN: use-after-free Write in usb_anchor_suspend_wakeups, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit 9d6bde853685609a631871d7c12be94fdf8d912e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: b5a96f07e49853d60693f7aa8718374a68172a1daf3ccd8777f6cfcee7d08edb
run #0: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #1: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #2: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #3: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #4: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
representative crash: KASAN: use-after-free Write in usb_anchor_suspend_wakeups, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 9d6bde853685609a631871d7c12be94fdf8d912e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 6f45aa59a36dd2b90f6336889c0ceda31f95194a8b49815df1da958c2301b4ba
all runs: OK
false negative chance: 0.000
minimized to 394 configs; suspects: [ARCH_ENABLE_MEMORY_HOTREMOVE ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CMA CONTIG_ALLOC CRYPTO_842 CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_LZO CRYPTO_ZSTD DVB_CORE EXTCON FB FRONTSWAP GPIOLIB HID_ZEROPLUS I2C_MUX IIO IRQ_REMAP LIBNVDIMM MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_CONTROLLER MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTPLUG_SPARSE MEMORY_HOTREMOVE MFD_VIPERBOARD PARPORT PCCARD PCMCIA PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RC_CORE RFKILL SND SOUND SPI SSB TAP TUN USB_AMD5536UDC USB_ATM USB_CONFIGFS USB_CONFIGFS_F_UAC1 USB_CONFIGFS_F_UAC1_LEGACY USB_CONFIGFS_F_UAC2 USB_CONFIGFS_F_UVC USB_CONFIGFS_MASS_STORAGE USB_CONFIGFS_NCM USB_CONFIGFS_OBEX USB_CONFIGFS_PHONET USB_CONFIGFS_RNDIS USB_CONFIGFS_SERIAL USB_CXACRU USB_CYPRESS_CY7C63 USB_CYTHERM USB_DSBR USB_DUMMY_HCD USB_DWC2 USB_DWC2_HOST USB_DWC2_PCI USB_DWC3 USB_DWC3_GADGET USB_DWC3_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI USB_DYNAMIC_MINORS USB_EG20T USB_EHCI_HCD_PLATFORM USB_EHCI_ROOT_HUB_TT USB_EHSET_TEST_FIXTURE USB_EMI26 USB_EMI62 USB_EPSON2888 USB_EZUSB_FX2 USB_FEW_INIT_RETRIES USB_FOTG210_HCD USB_FOTG210_UDC USB_FTDI_ELAN USB_F_ACM USB_F_ECM USB_F_EEM USB_F_FS USB_F_HID USB_F_MASS_STORAGE USB_F_MIDI USB_F_NCM USB_F_OBEX USB_F_PHONET USB_F_PRINTER USB_F_RNDIS USB_F_SERIAL USB_F_SS_LB USB_F_SUBSET USB_F_TCM USB_F_UAC1 USB_F_UAC1_LEGACY USB_F_UAC2 USB_F_UVC USB_GADGET USB_GADGETFS USB_GADGET_DEBUG_FILES USB_GADGET_DEBUG_FS USB_GL860 USB_GOKU USB_GPIO_VBUS USB_GR_UDC USB_GSPCA USB_GSPCA_BENQ USB_GSPCA_CONEX USB_GSPCA_CPIA1 USB_GSPCA_DTCS033 USB_GSPCA_ETOMS USB_GSPCA_FINEPIX USB_GSPCA_JEILINJ USB_GSPCA_JL2005BCD USB_GSPCA_KINECT USB_GSPCA_KONICA USB_GSPCA_MARS USB_GSPCA_MR97310A USB_GSPCA_NW80X USB_GSPCA_OV519 USB_GSPCA_OV534 USB_GSPCA_OV534_9 USB_GSPCA_PAC207 USB_GSPCA_PAC7302 USB_GSPCA_PAC7311 USB_GSPCA_SE401 USB_GSPCA_SN9C2028 USB_GSPCA_SN9C20X USB_GSPCA_SONIXB USB_GSPCA_SONIXJ USB_GSPCA_SPCA1528 USB_GSPCA_SPCA500 USB_GSPCA_SPCA501 USB_GSPCA_SPCA505 USB_GSPCA_SPCA506 USB_GSPCA_SPCA508 USB_GSPCA_SPCA561 USB_GSPCA_SQ905 USB_GSPCA_SQ905C USB_GSPCA_SQ930X USB_GSPCA_STK014 USB_GSPCA_STK1135 USB_GSPCA_STV0680 USB_GSPCA_SUNPLUS USB_GSPCA_T613 USB_GSPCA_TOPRO USB_GSPCA_TOUPTEK USB_GSPCA_TV8532 USB_GSPCA_VC032X USB_GSPCA_VICAM USB_GSPCA_XIRLINK_CIT USB_GSPCA_ZC3XX USB_HACKRF USB_HCD_BCMA USB_HCD_SSB USB_HSIC_USB3503 USB_HSIC_USB4604 USB_HSO USB_HUB_USB251XB USB_IDMOUSE USB_IOWARRIOR USB_IPHETH USB_ISIGHTFW USB_ISP116X_HCD USB_ISP1301 USB_ISP1760 USB_ISP1760_DUAL_ROLE USB_ISP1760_HCD USB_ISP1761_UDC USB_KAWETH USB_KC2190 USB_KEENE USB_LAN78XX USB_LCD USB_LD USB_LEDS_TRIGGER_USBPORT USB_LED_TRIG USB_LEGOTOWER USB_LIBCOMPOSITE USB_LINK_LAYER_TEST USB_M5602 USB_MA901 USB_MAX3421_HCD USB_MDC800 USB_MICROTEK USB_MR800 USB_MSI2500 USB_MUSB_DUAL_ROLE USB_MUSB_HDRC USB_MV_U3D USB_MV_UDC USB_NET2272 USB_NET2272_DMA USB_NET2280 USB_NET_AX88179_178A USB_NET_AX8817X USB_NET_CDCETHER USB_NET_CDC_EEM USB_NET_CDC_MBIM USB_NET_CDC_NCM USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_CH9200 USB_NET_CX82310_ETH USB_NET_DM9601 USB_NET_GL620A USB_NET_HUAWEI_CDC_NCM USB_NET_INT51X1 USB_NET_KALMIA USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_QMI_WWAN USB_NET_RNDIS_HOST USB_NET_RNDIS_WLAN USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_OXU210HP_HCD USB_PEGASUS USB_PULSE8_CEC USB_PWC USB_PWC_INPUT_EVDEV USB_PXA27X USB_R8A66597 USB_R8A66597_HCD USB_RAINSHADOW_CEC USB_RAREMONO USB_RAW_GADGET USB_RTL8150 USB_RTL8152 USB_RTL8153_ECM USB_S2255 USB_SERIAL USB_SERIAL_AIRCABLE USB_SERIAL_ARK3116 USB_SERIAL_BELKIN USB_SERIAL_CH341 USB_SERIAL_CONSOLE USB_SERIAL_CP210X USB_SERIAL_CYBERJACK USB_SERIAL_CYPRESS_M8 USB_SERIAL_DEBUG USB_SERIAL_DIGI_ACCELEPORT USB_SERIAL_EDGEPORT USB_SERIAL_EDGEPORT_TI USB_SERIAL_EMPEG USB_SERIAL_F81232 USB_SERIAL_F8153X USB_SERIAL_FTDI_SIO USB_SERIAL_GARMIN USB_SERIAL_GENERIC USB_SERIAL_IPAQ USB_SERIAL_IPW USB_SERIAL_IR USB_SERIAL_IUU USB_SERIAL_KEYSPAN USB_SERIAL_KEYSPAN_PDA USB_SERIAL_KLSI USB_SERIAL_KOBIL_SCT USB_SERIAL_MCT_U232 USB_SERIAL_METRO USB_SERIAL_MOS7715_PARPORT USB_SERIAL_MOS7720 USB_SERIAL_MOS7840 USB_SERIAL_MXUPORT USB_SERIAL_NAVMAN USB_SERIAL_OMNINET USB_SERIAL_OPTICON USB_SERIAL_OPTION USB_SERIAL_OTI6858 USB_SERIAL_PL2303 USB_SERIAL_QCAUX USB_SERIAL_QT2 USB_SERIAL_QUALCOMM USB_SERIAL_SAFE USB_SERIAL_SIERRAWIRELESS USB_SERIAL_SIMPLE USB_SERIAL_SPCP8X5 USB_SERIAL_SSU100 USB_SERIAL_SYMBOL USB_SERIAL_TI USB_SERIAL_UPD78F0730 USB_SERIAL_VISOR USB_SERIAL_WHITEHEAT USB_SERIAL_WISHBONE USB_SERIAL_WWAN USB_SERIAL_XR USB_SERIAL_XSENS_MT USB_SEVSEG USB_SI470X USB_SI4713 USB_SIERRA_NET USB_SISUSBVGA USB_SL811_CS USB_SL811_HCD USB_SL811_HCD_ISO USB_SNP_CORE USB_SPEEDTOUCH USB_STKWEBCAM USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_ENE_UB6250 USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_STV06XX USB_TEST USB_TMC USB_TRANCEVIBRATOR USB_U132_HCD USB_UAS USB_UEAGLEATM USB_ULPI_BUS USB_USBNET USB_USS720 USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_VIDEO_CLASS USB_VIDEO_CLASS_INPUT_EVDEV USB_VL600 USB_WDM USB_XHCI_DBGCAP USB_XHCI_PLATFORM USB_XUSBATM USB_YUREX USB_ZR364XX USERFAULTFD USERIO USERMODE_DRIVER USER_RETURN_NOTIFIER U_SERIAL_CONSOLE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VETH VFIO VFIO_IOMMU_TYPE1 VFIO_PCI VFIO_PCI_CORE VFIO_PCI_INTX VFIO_PCI_MMAP VFIO_VIRQFD VGASTATE VHOST VHOST_CROSS_ENDIAN_LEGACY VHOST_IOTLB VHOST_NET VHOST_RING VHOST_VDPA VHOST_VSOCK VIDEOBUF2_CORE VIDEOBUF2_DMA_CONTIG VIDEOBUF2_DMA_SG VIDEOBUF2_MEMOPS VIDEOBUF2_V4L2 VIDEOBUF2_VMALLOC VIDEOBUF_GEN VIDEOBUF_VMALLOC VIDEO_AU0828 VIDEO_AU0828_RC VIDEO_AU0828_V4L2 VIDEO_CPIA2 VIDEO_CS53L32A VIDEO_CX231XX VIDEO_CX231XX_ALSA VIDEO_CX231XX_DVB VIDEO_CX231XX_RC VIDEO_CX2341X VIDEO_CX25840 VIDEO_DEV VIDEO_EM28XX VIDEO_EM28XX_ALSA VIDEO_EM28XX_DVB VIDEO_EM28XX_RC VIDEO_EM28XX_V4L2 VIDEO_GO7007 VIDEO_GO7007_LOADER VIDEO_GO7007_USB VIDEO_GO7007_USB_S2250_BOARD VIDEO_HDPVR VIDEO_MSP3400 VIDEO_PVRUSB2 VIDEO_PVRUSB2_DVB VIDEO_PVRUSB2_SYSFS VIDEO_SAA711X VIDEO_STK1160 VIDEO_STK1160_COMMON VIDEO_TM6000 VIDEO_TM6000_ALSA VIDEO_TM6000_DVB VIDEO_TUNER VIDEO_TVEEPROM VIDEO_USBTV VIDEO_V4L2 VIDEO_V4L2_I2C VIDEO_V4L2_SUBDEV_API VIDEO_V4L2_TPG VIDEO_VICODEC VIDEO_VIM2M VIDEO_VIMC VIDEO_VIVID VIDEO_VIVID_CEC VIDEO_WM8775 VIPERBOARD_ADC VIRTIO_BALLOON VIRTIO_DMA_SHARED_BUFFER VIRTIO_MEM VIRTIO_MMIO VIRTIO_MMIO_CMDLINE_DEVICES VIRTIO_PMEM VIRTIO_VDPA VIRTIO_VSOCKETS VIRTIO_VSOCKETS_COMMON VIRT_WIFI VLAN_8021Q VLAN_8021Q_GVRP VLAN_8021Q_MVRP VMAP_PFN VMWARE_VMCI VMXNET3 VP_VDPA VSOCKETS VSOCKETS_DIAG VSOCKETS_LOOPBACK VSOCKMON VT_HW_CONSOLE_BINDING VXFS_FS WANT_DEV_COREDUMP WEXT_CORE WEXT_PRIV WEXT_PROC WIREGUARD WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ADMTEK X86_SGX X86_X2APIC X86_X32 XARRAY_MULTI XDP_SOCKETS XDP_SOCKETS_DIAG XFRM_ESPINTCP XFRM_INTERFACE XFRM_IPCOMP XFRM_MIGRATE XFRM_OFFLOAD XFRM_STATISTICS XFRM_SUB_POLICY XFRM_USER_COMPAT XFS_FS XFS_POSIX_ACL XFS_QUOTA XFS_RT XFS_SUPPORT_V4 XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZBUD ZEROPLUS_FF ZONEFS_FS ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_ZPOOL_DEFAULT_ZBUD]
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing current HEAD 02e21884dcf2f1746ab686a6ea41a0a92520fe58
testing commit 02e21884dcf2f1746ab686a6ea41a0a92520fe58 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c74c64f62166efd67d7dd0730e6cb9711898ffb9173c9fd2855c699a4bd6a099
run #0: crashed: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
representative crash: KASAN: use-after-free Write in usb_anchor_suspend_wakeups, types: [KASAN]
crash still not fixed/happens on the oldest tested release
reproducer is flaky (0.50 repro chance estimate)
revisions tested: 8, total time: 2h4m28.46901917s (build: 30m10.134250334s, test: 1h32m21.960471467s)
crash still not fixed or there were kernel test errors
commit msg: Linux 5.15.135
crash: KASAN: use-after-free Write in usb_anchor_suspend_wakeups
==================================================================
BUG: KASAN: use-after-free in instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
BUG: KASAN: use-after-free in atomic_inc include/linux/atomic/atomic-instrumented.h:181 [inline]
BUG: KASAN: use-after-free in usb_anchor_suspend_wakeups drivers/usb/core/urb.c:940 [inline]
BUG: KASAN: use-after-free in usb_anchor_suspend_wakeups+0x1a/0x30 drivers/usb/core/urb.c:937
Write of size 4 at addr ffff88811829f910 by task syz-executor.0/1793
CPU: 0 PID: 1793 Comm: syz-executor.0 Not tainted 5.15.135-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x41/0x5e lib/dump_stack.c:106
print_address_description.constprop.0.cold+0x6c/0x309 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:434 [inline]
kasan_report.cold+0x83/0xdf mm/kasan/report.c:451
check_region_inline mm/kasan/generic.c:183 [inline]
kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189
instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
atomic_inc include/linux/atomic/atomic-instrumented.h:181 [inline]
usb_anchor_suspend_wakeups drivers/usb/core/urb.c:940 [inline]
usb_anchor_suspend_wakeups+0x1a/0x30 drivers/usb/core/urb.c:937
__usb_hcd_giveback_urb+0x1d2/0x3f0 drivers/usb/core/hcd.c:1661
dummy_timer+0x104d/0x2d20 drivers/usb/gadget/udc/dummy_hcd.c:1987
call_timer_fn+0x159/0x340 kernel/time/timer.c:1421
expire_timers kernel/time/timer.c:1466 [inline]
__run_timers.part.0+0x430/0x770 kernel/time/timer.c:1737
__run_timers kernel/time/timer.c:1715 [inline]
run_timer_softirq+0x65/0xf0 kernel/time/timer.c:1750
__do_softirq+0x14a/0x59a kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu kernel/softirq.c:637 [inline]
irq_exit_rcu+0xce/0x110 kernel/softirq.c:649
sysvec_apic_timer_interrupt+0x6a/0x90 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:start_this_handle+0x1d5/0x1070 fs/jbd2/transaction.c:364
Code: 4c 01 e0 48 89 04 24 65 48 8b 04 25 00 6f 02 00 48 89 44 24 30 48 8b 04 24 80 38 00 0f 85 b1 0c 00 00 48 83 bb 98 01 00 00 00 <48> c7 44 24 18 00 00 00 00 0f 84 ed 02 00 00 4c 8b 7c 24 20 48 8d
RSP: 0018:ffffc9000111fb28 EFLAGS: 00000286
RAX: ffffed10225d3833 RBX: ffff888112e9c000 RCX: 0000000000000038
RDX: 1ffff110225d38fb RSI: 0000000000000000 RDI: ffff888120e210b8
RBP: 0000000000000000 R08: 0000000000000800 R09: ffff888120e210b0
R10: 0000000000034044 R11: 1ffff92000223f06 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff872c6dc0
jbd2__journal_start+0x385/0x7b0 fs/jbd2/transaction.c:521
__ext4_journal_start_sb+0x25c/0x2e0 fs/ext4/ext4_jbd2.c:105
__ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline]
ext4_dirty_inode+0x98/0x100 fs/ext4/inode.c:5990
__mark_inode_dirty+0x134/0x8f0 fs/fs-writeback.c:2442
generic_update_time fs/inode.c:1817 [inline]
inode_update_time fs/inode.c:1830 [inline]
touch_atime+0x3dc/0x480 fs/inode.c:1902
file_accessed include/linux/fs.h:2447 [inline]
iterate_dir+0x3c0/0x6d0 fs/readdir.c:70
__do_sys_getdents64 fs/readdir.c:369 [inline]
__se_sys_getdents64 fs/readdir.c:354 [inline]
__x64_sys_getdents64+0x122/0x220 fs/readdir.c:354
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fea84a62e63
Code: c1 66 0f 1f 44 00 00 48 83 c4 08 48 89 ef 5b 5d e9 52 8c fa ff 66 90 b8 ff ff ff 7f 48 39 c2 48 0f 47 d0 b8 d9 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 c7 c2 b0 ff ff ff f7 d8
RSP: 002b:00007ffedffb9028 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9
RAX: ffffffffffffffda RBX: 0000555556e0c810 RCX: 00007fea84a62e63
RDX: 0000000000008000 RSI: 0000555556e0c810 RDI: 0000000000000003
RBP: 0000555556e0c7e4 R08: 00000000000000ce R09: 00007ffedffd5080
R10: 0000000000001000 R11: 0000000000000293 R12: ffffffffffffffb0
R13: 0000000000000016 R14: 0000555556e0c7e0 R15: 0000000000000005
Allocated by task 4882:
kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
____kasan_kmalloc mm/kasan/common.c:513 [inline]
__kasan_kmalloc+0x7c/0x90 mm/kasan/common.c:522
kmalloc include/linux/slab.h:591 [inline]
kzalloc include/linux/slab.h:721 [inline]
usbtmc_open+0x98/0x920 drivers/usb/class/usbtmc.c:175
usb_open+0x1b1/0x240 drivers/usb/core/file.c:48
chrdev_open+0x20f/0x650 fs/char_dev.c:414
do_dentry_open+0x45e/0xfc0 fs/open.c:826
do_open fs/namei.c:3538 [inline]
path_openat+0x148b/0x24d0 fs/namei.c:3672
do_filp_open+0x199/0x3d0 fs/namei.c:3699
do_sys_openat2+0x11e/0x400 fs/open.c:1211
do_sys_open fs/open.c:1227 [inline]
__do_sys_openat fs/open.c:1243 [inline]
__se_sys_openat fs/open.c:1238 [inline]
__x64_sys_openat+0x11b/0x1d0 fs/open.c:1238
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Freed by task 4882:
kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
kasan_set_track+0x1c/0x30 mm/kasan/common.c:46
kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:360
____kasan_slab_free mm/kasan/common.c:366 [inline]
____kasan_slab_free mm/kasan/common.c:328 [inline]
__kasan_slab_free+0xe0/0x110 mm/kasan/common.c:374
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_hook mm/slub.c:1705 [inline]
slab_free_freelist_hook mm/slub.c:1731 [inline]
slab_free mm/slub.c:3499 [inline]
kfree+0xd0/0x4c0 mm/slub.c:4559
usbtmc_release+0x237/0x340 drivers/usb/class/usbtmc.c:261
__fput+0x1b2/0x8e0 fs/file_table.c:280
task_work_run+0xb8/0x140 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
exit_to_user_mode_prepare+0x15a/0x160 kernel/entry/common.c:208
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x12/0x30 kernel/entry/common.c:301
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x61/0xcb
The buggy address belongs to the object at ffff88811829f800
which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 272 bytes inside of
1024-byte region [ffff88811829f800, ffff88811829fc00)
The buggy address belongs to the page:
page:ffffea000460a600 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88811829e800 pfn:0x118298
head:ffffea000460a600 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x200000000010200(slab|head|node=0|zone=2)
raw: 0200000000010200 dead000000000100 dead000000000122 ffff888100041dc0
raw: ffff88811829e800 000000008010000f 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 2843, ts 56604302495, free_ts 56581628194
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x1290/0x2d30 mm/page_alloc.c:4159
__alloc_pages+0x1b2/0x420 mm/page_alloc.c:5421
alloc_slab_page mm/slub.c:1775 [inline]
allocate_slab+0x2eb/0x430 mm/slub.c:1912
new_slab mm/slub.c:1975 [inline]
___slab_alloc+0xb1c/0xf80 mm/slub.c:3008
__slab_alloc mm/slub.c:3095 [inline]
slab_alloc_node mm/slub.c:3186 [inline]
slab_alloc mm/slub.c:3228 [inline]
__kmalloc+0x2da/0x2f0 mm/slub.c:4403
kmalloc include/linux/slab.h:596 [inline]
load_elf_phdrs+0xd4/0x190 fs/binfmt_elf.c:480
load_elf_binary+0xebd/0x3eb0 fs/binfmt_elf.c:960
search_binary_handler fs/exec.c:1734 [inline]
exec_binprm fs/exec.c:1775 [inline]
bprm_execve fs/exec.c:1844 [inline]
bprm_execve+0x62a/0x1330 fs/exec.c:1806
kernel_execve+0x2dc/0x400 fs/exec.c:2005
call_usermodehelper_exec_async+0x2c1/0x500 kernel/umh.c:112
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1340 [inline]
free_pcp_prepare+0x34e/0x730 mm/page_alloc.c:1391
free_unref_page_prepare mm/page_alloc.c:3317 [inline]
free_unref_page+0x19/0x4b0 mm/page_alloc.c:3396
__unfreeze_partials+0x27d/0x2a0 mm/slub.c:2507
qlink_free mm/kasan/quarantine.c:157 [inline]
qlist_free_all+0x68/0x110 mm/kasan/quarantine.c:176
kasan_quarantine_reduce+0x180/0x1f0 mm/kasan/quarantine.c:283
__kasan_slab_alloc+0x73/0x80 mm/kasan/common.c:444
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook mm/slab.h:519 [inline]
slab_alloc_node mm/slub.c:3220 [inline]
slab_alloc mm/slub.c:3228 [inline]
kmem_cache_alloc+0x211/0x310 mm/slub.c:3233
vm_area_dup+0x83/0x290 kernel/fork.c:357
__split_vma+0x88/0x490 mm/mmap.c:2729
mprotect_fixup+0x599/0x7f0 mm/mprotect.c:483
do_mprotect_pkey+0x3c5/0x750 mm/mprotect.c:636
__do_sys_mprotect mm/mprotect.c:662 [inline]
__se_sys_mprotect mm/mprotect.c:659 [inline]
__x64_sys_mprotect+0x6f/0xb0 mm/mprotect.c:659
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Memory state around the buggy address:
ffff88811829f800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88811829f880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88811829f900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88811829f980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88811829fa00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
----------------
Code disassembly (best guess):
0: 4c 01 e0 add %r12,%rax
3: 48 89 04 24 mov %rax,(%rsp)
7: 65 48 8b 04 25 00 6f mov %gs:0x26f00,%rax
e: 02 00
10: 48 89 44 24 30 mov %rax,0x30(%rsp)
15: 48 8b 04 24 mov (%rsp),%rax
19: 80 38 00 cmpb $0x0,(%rax)
1c: 0f 85 b1 0c 00 00 jne 0xcd3
22: 48 83 bb 98 01 00 00 cmpq $0x0,0x198(%rbx)
29: 00
* 2a: 48 c7 44 24 18 00 00 movq $0x0,0x18(%rsp) <-- trapping instruction
31: 00 00
33: 0f 84 ed 02 00 00 je 0x326
39: 4c 8b 7c 24 20 mov 0x20(%rsp),%r15
3e: 48 rex.W
3f: 8d .byte 0x8d