ci starts bisection 2024-09-03 02:36:39.992151355 +0000 UTC m=+26626.520086970
bisecting fixing commit since 480e035fc4c714fb5536e64ab9db04fedc89e910
building syzkaller on 6baf506947ba27ed9ce775cf9351cb0886166083
ensuring issue is reproducible on original commit 480e035fc4c714fb5536e64ab9db04fedc89e910
testing commit 480e035fc4c714fb5536e64ab9db04fedc89e910 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 1404d53133adc7e4f8a8664c339f6257620996e7fba65d35fa032daa440b5dec
all runs: crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups
representative crash: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups, types: [KASAN]
check whether we can drop unnecessary instrumentation
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit 480e035fc4c714fb5536e64ab9db04fedc89e910 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 0f5196fdd89decd5e7b19ffda6e0f22da9204036bcebaed025af921ddb4c0344
all runs: crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups
representative crash: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups, types: [KASAN]
the bug reproduces without the instrumentation
disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
kconfig minimization: base=4045 full=7986 leaves diff=2004
split chunks (needed=false): <2004>
split chunk #0 of len 2004 into 5 parts
testing without sub-chunk 1/5
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed
testing commit 480e035fc4c714fb5536e64ab9db04fedc89e910 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 6cccb33e767d3ef90d588c9e3a106411f70a786d9d8ab8ea333df5a730613230
all runs: crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups
representative crash: KASAN: slab-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 480e035fc4c714fb5536e64ab9db04fedc89e910 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 4729929b02c8aedcf074fb757ef8e26546a4b8c1eb97b8bdad543dda25722b93
all runs: crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups
representative crash: KASAN: slab-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 480e035fc4c714fb5536e64ab9db04fedc89e910 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 882006c79bc5e49fa683152f650f6d6e0fd9702e56aabb93707f028378a63d98
all runs: crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups
representative crash: KASAN: slab-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 480e035fc4c714fb5536e64ab9db04fedc89e910 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 6cfb284f8be2a2c73113f166418efa7b0f10930cee1e50f07a43e9c77a551ca5
all runs: crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups
representative crash: KASAN: slab-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 480e035fc4c714fb5536e64ab9db04fedc89e910 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 78dfd45ea9a9186fc2032776ee5ebd72d925bfd8830b91f8aa8427cf264b293c
all runs: OK
false negative chance: 0.000
minimized to 400 configs; suspects: [ARCH_ENABLE_MEMORY_HOTREMOVE ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CMA COMMON_CLK CONTIG_ALLOC CRYPTO_842 CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_ZSTD DVB_CORE EXTCON FB GPIOLIB HAVE_KVM HID_ZEROPLUS HW_CONSOLE I2C_MUX IIO IOMMUFD IRQ_REMAP KVM KVM_INTEL 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_HOTREMOVE MFD_VIPERBOARD PARPORT PCCARD PCMCIA PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RC_CORE RFKILL SND SOUND SPI SSB TAP TARGET_CORE TUN USB_AMD5536UDC USB_ATM USB_CONFIGFS USB_CONFIGFS_EEM USB_CONFIGFS_F_FS USB_CONFIGFS_F_HID USB_CONFIGFS_F_LB_SS USB_CONFIGFS_F_MIDI USB_CONFIGFS_F_PRINTER USB_CONFIGFS_F_TCM 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_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_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_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_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 USERFAULTFD USERIO USERMODE_DRIVER USER_RETURN_NOTIFIER UVC_COMMON U_SERIAL_CONSOLE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VDPA_SIM VDPA_SIM_BLOCK VDPA_SIM_NET VDPA_USER VETH VFIO VFIO_DEVICE_CDEV 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_TASK VHOST_VDPA VHOST_VSOCK VIDEO VIDEOBUF2_CORE VIDEOBUF2_DMA_CONTIG VIDEOBUF2_DMA_SG VIDEOBUF2_MEMOPS VIDEOBUF2_V4L2 VIDEOBUF2_VMALLOC VIDEOMODE_HELPERS VIDEO_AU0828 VIDEO_AU0828_RC VIDEO_AU0828_V4L2 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_TUNER VIDEO_TVEEPROM VIDEO_USBTV 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 WLAN_VENDOR_PURELIFI WLAN_VENDOR_SILABS X86_SGX X86_SGX_KVM X86_USER_SHADOW_STACK X86_X2APIC X86_X32_ABI 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 XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_DEFAULT_ON ZSWAP_SHRINKER_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZSMALLOC]
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed
testing current HEAD 67784a74e258a467225f0e68335df77acd67b7ab
testing commit 67784a74e258a467225f0e68335df77acd67b7ab gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 40f86687f0dfd27f800db61933f3255d1d40f1b8c378c691bf3629b239915f82
run #0: crashed: KASAN: slab-use-after-free Read in usbtmc_read_bulk_cb
run #1: crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups
run #2: crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups
run #3: crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups
run #4: crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups
run #5: crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups
run #6: crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups
run #7: crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups
run #8: crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups
run #9: crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups
representative crash: KASAN: slab-use-after-free Read in usbtmc_read_bulk_cb, types: [KASAN]
crash still not fixed/happens on the oldest tested release
revisions tested: 8, total time: 1h47m35.874221542s (build: 1h5m27.364118726s, test: 37m42.4650893s)
crash still not fixed or there were kernel test errors
commit msg: Merge tag 'ata-6.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
crash: KASAN: slab-use-after-free Read in usbtmc_read_bulk_cb
usbtmc 1-1:16.0: usbtmc_read_bulk_cb - nonzero read bulk status received: -71
==================================================================
BUG: KASAN: slab-use-after-free in __lock_acquire+0x7c/0xc60 kernel/locking/lockdep.c:5007
Read of size 8 at addr ffff888115e7f048 by task klogd/1950
CPU: 1 UID: 0 PID: 1950 Comm: klogd Not tainted 6.11.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x108/0x280 lib/dump_stack.c:119
print_address_description mm/kasan/report.c:377 [inline]
print_report+0x169/0x550 mm/kasan/report.c:488
kasan_report+0x143/0x180 mm/kasan/report.c:601
__lock_acquire+0x7c/0xc60 kernel/locking/lockdep.c:5007
lock_acquire+0x1a9/0x3a0 kernel/locking/lockdep.c:5759
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xc8/0x110 kernel/locking/spinlock.c:162
usbtmc_read_bulk_cb+0x82/0x3b0 drivers/usb/class/usbtmc.c:785
__usb_hcd_giveback_urb+0x22f/0x370 drivers/usb/core/hcd.c:1650
dummy_timer+0x9e9/0x3da0 drivers/usb/gadget/udc/dummy_hcd.c:1987
__run_hrtimer kernel/time/hrtimer.c:1689 [inline]
__hrtimer_run_queues+0x410/0x820 kernel/time/hrtimer.c:1753
hrtimer_interrupt+0x2e6/0xbc0 kernel/time/hrtimer.c:1815
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0xed/0x320 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:kmap_local_sched_in kernel/sched/core.c:4968 [inline]
RIP: 0010:finish_task_switch+0x1d3/0x830 kernel/sched/core.c:5070
Code: 1e ea b9 05 00 74 0d 48 89 df be ff ff ff ff e8 13 ee cc 03 4d 85 e4 0f 85 12 01 00 00 4c 89 ef e8 d2 a0 d2 03 fb 4c 8b 75 c8 <49> 8d 9e f0 14 00 00 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc
RSP: 0018:ffffc9000113f8c8 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffff8881f6f3d318 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
RBP: ffffc9000113f910 R08: ffff8881f6f3d303 R09: 1ffff1103ede7a60
R10: dffffc0000000000 R11: ffffed103ede7a61 R12: 0000000000000000
R13: ffff8881f6f3d300 R14: ffff88811ad91c80 R15: 1ffff1103ede7bb1
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x14b4/0x20e0 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x112/0x2f0 kernel/sched/core.c:6621
syslog_print+0x287/0x760 kernel/printk/printk.c:1582
do_syslog+0x1be/0x5c0 kernel/printk/printk.c:1734
__do_sys_syslog kernel/printk/printk.c:1826 [inline]
__se_sys_syslog kernel/printk/printk.c:1824 [inline]
__x64_sys_syslog+0x77/0x90 kernel/printk/printk.c:1824
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x8d/0x190 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7201209fa7
Code: 73 01 c3 48 8b 0d 81 ce 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 67 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 51 ce 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffd2e425458 EFLAGS: 00000206 ORIG_RAX: 0000000000000067
RAX: ffffffffffffffda RBX: 00007f72013a84a0 RCX: 00007f7201209fa7
RDX: 00000000000003ff RSI: 00007f72013a84a0 RDI: 0000000000000002
RBP: 0000000000000000 R08: 0000000000000007 R09: 0809824bfe286a4a
R10: 0000000000004000 R11: 0000000000000206 R12: 00007f72013a84a0
R13: 00007f7201398212 R14: 00007f72013a8540 R15: 00007f72013a8540
Allocated by task 3695:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
__kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387
kasan_kmalloc include/linux/kasan.h:211 [inline]
__kmalloc_cache_noprof+0x19e/0x360 mm/slub.c:4189
kmalloc_noprof include/linux/slab.h:681 [inline]
kzalloc_noprof include/linux/slab.h:807 [inline]
usbtmc_open+0x8e/0x820 drivers/usb/class/usbtmc.c:175
usb_open+0x176/0x1e0 drivers/usb/core/file.c:47
chrdev_open+0x4bd/0x580 fs/char_dev.c:414
do_dentry_open+0x6f4/0xfa0 fs/open.c:959
vfs_open+0x36/0x290 fs/open.c:1089
do_open fs/namei.c:3727 [inline]
path_openat+0x21bf/0x2870 fs/namei.c:3886
do_filp_open+0x22b/0x440 fs/namei.c:3913
do_sys_openat2+0xf6/0x180 fs/open.c:1416
do_sys_open fs/open.c:1431 [inline]
__do_sys_openat fs/open.c:1447 [inline]
__se_sys_openat fs/open.c:1442 [inline]
__x64_sys_openat+0x20d/0x260 fs/open.c:1442
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x8d/0x190 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 3695:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
poison_slab_object+0xe0/0x150 mm/kasan/common.c:240
__kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2252 [inline]
slab_free mm/slub.c:4473 [inline]
kfree+0x12f/0x310 mm/slub.c:4594
usbtmc_release+0x220/0x250 drivers/usb/class/usbtmc.c:261
__fput+0x1a8/0x690 fs/file_table.c:422
task_work_run+0x20f/0x290 kernel/task_work.c:228
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xb5/0x1e0 kernel/entry/common.c:218
do_syscall_64+0x9a/0x190 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
The buggy address belongs to the object at ffff888115e7f000
which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 72 bytes inside of
freed 1024-byte region [ffff888115e7f000, ffff888115e7f400)
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x115e78
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
anon flags: 0x200000000000040(head|node=0|zone=2)
page_type: 0xfdffffff(slab)
raw: 0200000000000040 ffff888100041dc0 ffffea00041fca00 0000000000000003
raw: 0000000000000000 0000000000100010 00000001fdffffff 0000000000000000
head: 0200000000000040 ffff888100041dc0 ffffea00041fca00 0000000000000003
head: 0000000000000000 0000000000100010 00000001fdffffff 0000000000000000
head: 0200000000000003 ffffea0004579e01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 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 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 2220, tgid 2220 (sshd), ts 25378140012, free_ts 25336189345
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x10f/0x130 mm/page_alloc.c:1493
prep_new_page mm/page_alloc.c:1501 [inline]
get_page_from_freelist+0x2b8c/0x2c40 mm/page_alloc.c:3439
__alloc_pages_noprof+0x256/0x670 mm/page_alloc.c:4695
__alloc_pages_node_noprof include/linux/gfp.h:269 [inline]
alloc_pages_node_noprof include/linux/gfp.h:296 [inline]
alloc_slab_page+0x5f/0x120 mm/slub.c:2321
allocate_slab+0x5d/0x290 mm/slub.c:2484
new_slab mm/slub.c:2537 [inline]
___slab_alloc+0xa7f/0x11d0 mm/slub.c:3723
__slab_alloc mm/slub.c:3813 [inline]
__slab_alloc_node mm/slub.c:3866 [inline]
slab_alloc_node mm/slub.c:4025 [inline]
__do_kmalloc_node mm/slub.c:4157 [inline]
__kmalloc_node_track_caller_noprof+0x27d/0x460 mm/slub.c:4177
kmemdup_noprof+0x23/0x50 mm/util.c:133
bpf_migrate_filter net/core/filter.c:1268 [inline]
bpf_prepare_filter+0xd10/0x1470 net/core/filter.c:1354
bpf_prog_create_from_user+0x29a/0x3e0 net/core/filter.c:1448
seccomp_prepare_filter kernel/seccomp.c:693 [inline]
seccomp_prepare_user_filter kernel/seccomp.c:730 [inline]
seccomp_set_mode_filter kernel/seccomp.c:1953 [inline]
do_seccomp+0x652/0xbf0 kernel/seccomp.c:2073
__do_sys_prctl kernel/sys.c:2539 [inline]
__se_sys_prctl+0x345/0x2040 kernel/sys.c:2457
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x8d/0x190 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 2218 tgid 2218 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1094 [inline]
free_unref_page+0xbc0/0xd00 mm/page_alloc.c:2612
discard_slab mm/slub.c:2583 [inline]
__put_partials+0x18e/0x1d0 mm/slub.c:3051
put_cpu_partial+0x151/0x1b0 mm/slub.c:3126
__slab_free+0x2b8/0x3a0 mm/slub.c:4343
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x9e/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:322
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook mm/slub.c:3988 [inline]
slab_alloc_node mm/slub.c:4037 [inline]
kmem_cache_alloc_noprof+0x12b/0x350 mm/slub.c:4044
getname_flags+0x9d/0x440 fs/namei.c:139
do_sys_openat2+0xb0/0x180 fs/open.c:1410
do_sys_open fs/open.c:1431 [inline]
__do_sys_openat fs/open.c:1447 [inline]
__se_sys_openat fs/open.c:1442 [inline]
__x64_sys_openat+0x20d/0x260 fs/open.c:1442
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x8d/0x190 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Memory state around the buggy address:
ffff888115e7ef00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff888115e7ef80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888115e7f000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff888115e7f080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888115e7f100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
----------------
Code disassembly (best guess), 2 bytes skipped:
0: b9 05 00 74 0d mov $0xd740005,%ecx
5: 48 89 df mov %rbx,%rdi
8: be ff ff ff ff mov $0xffffffff,%esi
d: e8 13 ee cc 03 call 0x3ccee25
12: 4d 85 e4 test %r12,%r12
15: 0f 85 12 01 00 00 jne 0x12d
1b: 4c 89 ef mov %r13,%rdi
1e: e8 d2 a0 d2 03 call 0x3d2a0f5
23: fb sti
24: 4c 8b 75 c8 mov -0x38(%rbp),%r14
* 28: 49 8d 9e f0 14 00 00 lea 0x14f0(%r14),%rbx <-- trapping instruction
2f: 48 89 d8 mov %rbx,%rax
32: 48 c1 e8 03 shr $0x3,%rax
36: 48 rex.W
37: b9 00 00 00 00 mov $0x0,%ecx
3c: 00 fc add %bh,%ah