ci2 starts bisection 2026-11-02 20:09:13.983760954 +0000 UTC m=+36288.138091761 bisecting fixing commit since e4f7d8be268ecf717f94ee2e242afa79ddeacaed building syzkaller on 5d63f80b763910b40ae04a96c13dc75d621bea67 ensuring issue is reproducible on original commit e4f7d8be268ecf717f94ee2e242afa79ddeacaed testing commit e4f7d8be268ecf717f94ee2e242afa79ddeacaed gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 68e23dee8daca47c45a2b624874329669c86f279138b3b66e4fcfd84b37af953 all runs: crashed: INFO: task hung in i2c_tiny_usb_disconnect representative crash: INFO: task hung in i2c_tiny_usb_disconnect, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [locking atomic_sleep memleak ubsan bug_or_warning kasan], they are not needed testing commit e4f7d8be268ecf717f94ee2e242afa79ddeacaed gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: d0041d25ca686b0326342d3c9e8731dae97bb0dff67a3971a5ae7be1dd013fba all runs: crashed: INFO: task hung in i2c_tiny_usb_disconnect representative crash: INFO: task hung in i2c_tiny_usb_disconnect, types: [HANG] the bug reproduces without the instrumentation disabling configs for [atomic_sleep memleak ubsan bug_or_warning kasan locking], they are not needed kconfig minimization: base=3832 full=7621 leaves diff=2126 split chunks (needed=false): <2126> split chunk #0 of len 2126 into 5 parts testing without sub-chunk 1/5 disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed testing commit e4f7d8be268ecf717f94ee2e242afa79ddeacaed gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 760485cef32b9db35ba31455522912081b42effe4897c90c2472f94128c3a03d run #0: crashed: INFO: task hung in uevent_show run #1: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #2: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #3: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #4: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #5: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #6: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #7: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #8: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #9: crashed: INFO: task hung in i2c_tiny_usb_disconnect representative crash: INFO: task hung in uevent_show, types: [HANG] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep memleak], they are not needed testing commit e4f7d8be268ecf717f94ee2e242afa79ddeacaed gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: d8a427d9d49cd406a873d778f34b87aa015cfd8e33df8b1142391bd86cda6c19 all runs: OK false negative chance: 0.000 testing without sub-chunk 3/5 disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed testing commit e4f7d8be268ecf717f94ee2e242afa79ddeacaed gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 20d3d18eb859f775780e5e45a9c463f4d2e4289e67de56b6dd97b2e551b91644 run #0: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #1: crashed: INFO: task hung in uevent_show run #2: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #3: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #4: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #5: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #6: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #7: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #8: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #9: crashed: INFO: task hung in i2c_tiny_usb_disconnect representative crash: INFO: task hung in i2c_tiny_usb_disconnect, types: [HANG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep memleak], they are not needed testing commit e4f7d8be268ecf717f94ee2e242afa79ddeacaed gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: a03853c0bb68366935aab59e6a255291422b38c8b27566f2cfc0e4a4516222b6 run #0: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #1: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #2: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #3: crashed: INFO: task hung in uevent_show run #4: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #5: crashed: INFO: task hung in uevent_show run #6: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #7: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #8: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #9: crashed: INFO: task hung in i2c_tiny_usb_disconnect representative crash: INFO: task hung in i2c_tiny_usb_disconnect, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [locking atomic_sleep memleak ubsan bug_or_warning kasan], they are not needed testing commit e4f7d8be268ecf717f94ee2e242afa79ddeacaed gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: affacea6dfc5573b407718c6329de7e641ac1fb4cb8be18905c52e775aff4f42 all runs: OK false negative chance: 0.000 minimized to 848 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CHARGER_BQ24190 CMA COMMON_CLK CONTIG_ALLOC CRYPTO_842 CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_LZO CRYPTO_ZSTD DAX DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DIMLIB DLM DLN2_ADC DMABUF_HEAPS DMABUF_HEAPS_CMA DMABUF_HEAPS_SYSTEM DMABUF_MOVE_NOTIFY DMA_CMA DMA_ENGINE_RAID DM_AUDIT DM_BIO_PRISON DM_BUFIO DM_CACHE DM_CACHE_SMQ DM_CLONE DM_CRYPT DM_FLAKEY DM_INTEGRITY DM_MULTIPATH DM_MULTIPATH_QL DM_MULTIPATH_ST DM_PERSISTENT_DATA DM_RAID DM_SNAPSHOT DM_THIN_PROVISIONING DM_UEVENT DM_VERITY DM_VERITY_FEC DM_WRITECACHE DM_ZONED DRAGONRISE_FF DRM DRM_BOCHS DRM_BRIDGE DRM_BUDDY DRM_CIRRUS_QEMU DRM_DEBUG_MM DRM_DISPLAY_DP_HELPER DRM_DISPLAY_HDCP_HELPER DRM_DISPLAY_HDMI_HELPER DRM_DISPLAY_HELPER DRM_DP_AUX_BUS DRM_DP_AUX_CHARDEV DRM_FBDEV_EMULATION DRM_GEM_SHMEM_HELPER DRM_GM12U320 DRM_GUD DRM_I915 DRM_I915_CAPTURE_ERROR DRM_I915_COMPRESS_ERROR DRM_I915_USERPTR DRM_KMS_HELPER DRM_MIPI_DSI DRM_NOMODESET DRM_PANEL DRM_PANEL_BRIDGE DRM_PANEL_EDP DRM_PANEL_ORIENTATION_QUIRKS DRM_SIMPLEDRM DRM_TTM DRM_TTM_HELPER DRM_UDL DRM_VGEM DRM_VIRTIO_GPU DRM_VKMS DRM_VMWGFX DRM_VRAM_HELPER DUMMY DVB_AF9013 DVB_AF9033 DVB_AS102 DVB_AS102_FE DVB_B2C2_FLEXCOP DVB_B2C2_FLEXCOP_USB DVB_CORE DVB_DIB3000MB DVB_DIB3000MC DVB_EC100 DVB_GP8PSK_FE DVB_RTL2830 DVB_RTL2832 DVB_RTL2832_SDR DVB_TEST_DRIVERS DVB_TTUSB_BUDGET DVB_TTUSB_DEC DVB_USB DVB_USB_A800 DVB_USB_AF9005 DVB_USB_AF9005_REMOTE DVB_USB_AF9015 DVB_USB_AF9035 DVB_USB_ANYSEE DVB_USB_AU6610 DVB_USB_AZ6007 DVB_USB_AZ6027 DVB_USB_CE6230 DVB_USB_CINERGY_T2 DVB_USB_CXUSB DVB_USB_CXUSB_ANALOG DVB_USB_DIB0700 DVB_USB_DIB3000MC DVB_USB_DIBUSB_MB DVB_USB_DIBUSB_MC DVB_USB_DIGITV DVB_USB_DTT200U DVB_USB_DTV5100 DVB_USB_DVBSKY DVB_USB_DW2102 DVB_USB_EC168 DVB_USB_GL861 DVB_USB_GP8PSK DVB_USB_LME2510 DVB_USB_M920X DVB_USB_MXL111SF DVB_USB_NOVA_T_USB2 DVB_USB_OPERA1 DVB_USB_PCTV452E DVB_USB_RTL28XXU DVB_USB_TECHNISAT_USB2 DVB_USB_TTUSB2 DVB_USB_UMT_010 DVB_USB_V2 DVB_USB_VP702X DVB_USB_VP7045 DVB_USB_ZD1301 DVB_VIDTV DVB_ZL10353 ECRYPT_FS ECRYPT_FS_MESSAGING EDAC EEPROM_93CX6 EFS_FS ENCRYPTED_KEYS EQUALIZER EROFS_FS EROFS_FS_POSIX_ACL EROFS_FS_SECURITY EROFS_FS_XATTR EROFS_FS_ZIP EVM EVM_ADD_XATTRS EVM_ATTR_FSUUID EXFAT_FS EXPORTFS_BLOCK_OPS EXT3_FS EXT3_FS_POSIX_ACL EXT3_FS_SECURITY EXTCON EXTCON_INTEL_CHT_WC EXTCON_PTN5150 EXTCON_USBC_TUSB320 F2FS_CHECK_FS F2FS_FAULT_INJECTION F2FS_FS F2FS_FS_COMPRESSION F2FS_FS_LZ4 F2FS_FS_LZ4HC F2FS_FS_LZO F2FS_FS_LZORLE F2FS_FS_POSIX_ACL F2FS_FS_SECURITY F2FS_FS_XATTR F2FS_FS_ZSTD F2FS_STAT_FS FANOTIFY FANOTIFY_ACCESS_PERMISSIONS FB FB_CFB_COPYAREA FB_CFB_FILLRECT FB_CFB_IMAGEBLIT FB_CMDLINE FB_DEFERRED_IO FB_NOTIFY FB_SYS_COPYAREA FB_SYS_FILLRECT FB_SYS_FOPS FB_SYS_IMAGEBLIT FB_TILEBLITTING FB_VESA FB_VGA16 FB_VIRTUAL FDDI FIREWIRE FIREWIRE_NET FIREWIRE_OHCI FIREWIRE_SBP2 FONT_8x16 FONT_8x8 FONT_SUPPORT FRAMEBUFFER_CONSOLE FRAMEBUFFER_CONSOLE_DETECT_PRIMARY FRAMEBUFFER_CONSOLE_ROTATION FRONTSWAP FS_DAX FS_DAX_PMD FS_ENCRYPTION FS_ENCRYPTION_ALGS FS_VERITY FS_VERITY_BUILTIN_SIGNATURES FTL FUSE_DAX FUSE_FS FW_LOADER_COMPRESS FW_LOADER_PAGED_BUF FW_LOADER_SYSFS FW_LOADER_USER_HELPER FW_LOADER_USER_HELPER_FALLBACK GACT_PROB GARP GENERIC_PHY GET_FREE_REGION GFS2_FS GFS2_FS_LOCKING_DLM GNSS GNSS_USB GOOGLE_COREBOOT_TABLE GOOGLE_FIRMWARE GOOGLE_MEMCONSOLE GOOGLE_MEMCONSOLE_COREBOOT GOOGLE_VPD GPIOLIB GPIOLIB_IRQCHIP GPIO_ACPI GPIO_DLN2 GPIO_VIPERBOARD GREENASIA_FF GREYBUS GREYBUS_BRIDGED_PHY GREYBUS_ES2 GREYBUS_HID GREYBUS_USB GTP GUEST_PERF_EVENTS HAVE_ARCH_NODE_DEV_GROUP HAVE_ARCH_USERFAULTFD_MINOR HAVE_ARCH_USERFAULTFD_WP HAVE_BOOTMEM_INFO_NODE HAVE_CLK_PREPARE HAVE_KVM_CPU_RELAX_INTERCEPT HAVE_KVM_DIRTY_RING HAVE_KVM_DIRTY_RING_ACQ_REL HAVE_KVM_DIRTY_RING_TSO HAVE_KVM_EVENTFD HAVE_KVM_IRQCHIP HAVE_KVM_IRQFD HAVE_KVM_IRQ_BYPASS HAVE_KVM_IRQ_ROUTING HAVE_KVM_MSI HAVE_KVM_NO_POLL HAVE_KVM_PFNCACHE HAVE_KVM_PM_NOTIFIER HAVE_SCHED_AVG_IRQ HDLC HDLC_CISCO HDLC_FR HDLC_PPP HDLC_RAW HDLC_RAW_ETH HDLC_X25 HDMI HFSPLUS_FS HFS_FS HID_ACCUTOUCH HID_ACRUX HID_ACRUX_FF HID_ALPS HID_APPLEIR HID_ASUS HID_AUREAL HID_BATTERY_STRENGTH HID_BETOP_FF HID_BIGBEN_FF HID_CMEDIA HID_CORSAIR HID_COUGAR HID_CP2112 HID_CREATIVE_SB0540 HID_DRAGONRISE HID_ELAN HID_ELECOM HID_ELO HID_EMS_FF HID_FT260 HID_GEMBIRD HID_GFRM HID_GLORIOUS HID_GREENASIA HID_GT683R HID_HOLTEK HID_ICADE HID_JABRA HID_KEYTOUCH HID_KYE HID_LCPOWER HID_LED HID_LENOVO HID_LETSKETCH HID_LOGITECH_DJ HID_LOGITECH_HIDPP HID_MACALLY HID_MAGICMOUSE HID_MALTRON HID_MAYFLASH HID_MCP2221 HID_MEGAWORLD_FF HID_MULTITOUCH HID_NTI HID_ORTEK HID_PENMOUNT HID_PICOLCD HID_PICOLCD_BACKLIGHT HID_PICOLCD_CIR HID_PICOLCD_FB HID_PICOLCD_LCD HID_PICOLCD_LEDS HID_PLANTRONICS HID_PRIMAX HID_PRODIKEYS HID_PXRC HID_RAZER HID_RETRODE HID_RMI HID_ROCCAT HID_SAITEK HID_SEMITEK HID_SENSOR_ACCEL_3D HID_SENSOR_ALS HID_SENSOR_CUSTOM_INTEL_HINGE HID_SENSOR_CUSTOM_SENSOR HID_SENSOR_DEVICE_ROTATION HID_SENSOR_GYRO_3D HID_SENSOR_HUB HID_SENSOR_HUMIDITY HID_SENSOR_IIO_COMMON HID_SENSOR_IIO_TRIGGER HID_SENSOR_INCLINOMETER_3D HID_SENSOR_MAGNETOMETER_3D HID_SENSOR_PRESS HID_SENSOR_PROX HID_SENSOR_TEMP HID_SIGMAMICRO HID_SPEEDLINK HID_STEAM HID_STEELSERIES HID_THINGM HID_TIVO HID_TOPRE HID_TWINHAN HID_U2FZERO HID_UCLOGIC HID_UDRAW_PS3 HID_VIEWSONIC HID_VIVALDI HID_VIVALDI_COMMON HID_VRC2 HID_WACOM HID_WALTOP HID_WIIMOTE HID_XIAOMI HID_XINMO HID_ZEROPLUS HID_ZYDACRON HMM_MIRROR HOLTEK_FF HOTPLUG_PCI_PCIE HPET_MMAP HPET_MMAP_DEFAULT HPFS_FS I2C_ALGOBIT I2C_CHARDEV I2C_CP2615 I2C_DESIGNWARE_CORE I2C_DESIGNWARE_PLATFORM I2C_DIOLAN_U2C I2C_DLN2 I2C_MUX I2C_MUX_REG I2C_ROBOTFUZZ_OSIF I2C_SI4713 I2C_SLAVE I2C_SLAVE_EEPROM I2C_TINY_USB I2C_VIPERBOARD IEEE802154 IEEE802154_6LOWPAN IEEE802154_ATUSB IEEE802154_DRIVERS IEEE802154_HWSIM IEEE802154_NL802154_EXPERIMENTAL IEEE802154_SOCKET IFB IIO IIO_BUFFER IIO_KFIFO_BUF IIO_TRIGGER IIO_TRIGGERED_BUFFER IKCONFIG IKCONFIG_PROC IMA IMA_APPRAISE IMA_APPRAISE_MODSIG IMA_DEFAULT_HASH_SHA256 IMA_LSM_RULES IMA_MEASURE_ASYMMETRIC_KEYS IMA_NG_TEMPLATE IMA_QUEUE_EARLY_BOOT_KEYS IMA_READ_POLICY IMA_WRITE_POLICY INET6_ESPINTCP INET6_ESP_OFFLOAD INET6_IPCOMP INET6_TUNNEL INET6_XFRM_TUNNEL INET_AH INET_DCCP_DIAG INET_DIAG INET_DIAG_DESTROY INET_ESP INET_ESPINTCP INET_ESP_OFFLOAD INET_IPCOMP INET_MPTCP_DIAG INET_RAW_DIAG INET_SCTP_DIAG INET_TCP_DIAG INET_UDP_DIAG INET_XFRM_TUNNEL INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_ADDR_TRANS_CONFIGFS INFINIBAND_IPOIB INFINIBAND_IPOIB_CM INFINIBAND_IPOIB_DEBUG INFINIBAND_ISER INFINIBAND_ON_DEMAND_PAGING INFINIBAND_RTRS INFINIBAND_SRP INFINIBAND_USER_ACCESS INFINIBAND_USER_MAD INFINIBAND_USER_MEM INPUT_ATI_REMOTE2 INPUT_CM109 INPUT_IMS_PCU INPUT_JOYDEV INPUT_KEYSPAN_REMOTE INPUT_LEDS INPUT_MOUSEDEV INPUT_MOUSEDEV_PSAUX INPUT_POWERMATE INPUT_UINPUT INPUT_YEALINK INTEGRITY INTEGRITY_ASYMMETRIC_KEYS INTEGRITY_AUDIT INTEGRITY_SIGNATURE INTEGRITY_TRUSTED_KEYRING INTEL_CHTWC_INT33FE INTEL_IDMA64 INTEL_IOATDMA INTEL_IOMMU_DEFAULT_ON INTEL_IOMMU_SVM INTEL_SOC_PMIC_CHTWC INTERVAL_TREE IOMMU_SVA IP6_NF_MATCH_AH IP6_NF_MATCH_EUI64 IP6_NF_MATCH_FRAG IP6_NF_MATCH_HL IP6_NF_MATCH_MH IP6_NF_MATCH_OPTS IP6_NF_MATCH_RPFILTER IP6_NF_MATCH_RT IP6_NF_MATCH_SRH IP6_NF_NAT IP6_NF_RAW IP6_NF_SECURITY IP6_NF_TARGET_HL IP6_NF_TARGET_MASQUERADE IP6_NF_TARGET_NPT IP6_NF_TARGET_SYNPROXY IPV6_FOU IPV6_FOU_TUNNEL IPV6_GRE IPV6_ILA IPV6_MIP6 IPV6_MROUTE IPV6_MROUTE_MULTIPLE_TABLES IPV6_MULTIPLE_TABLES IPV6_OPTIMISTIC_DAD IPV6_PIMSM_V2 IPV6_ROUTER_PREF IPV6_ROUTE_INFO IPV6_RPL_LWTUNNEL IPV6_SEG6_BPF IPV6_SEG6_HMAC IPV6_SEG6_LWTUNNEL IPV6_SIT_6RD IPV6_SUBTREES IPV6_TUNNEL IPV6_VTI IPVLAN IPVLAN_L3S IPVTAP IP_DCCP IP_DCCP_CCID3 IP_DCCP_TFRC_LIB IP_FIB_TRIE_STATS IP_MROUTE_MULTIPLE_TABLES IP_NF_ARPFILTER IP_NF_ARPTABLES IP_NF_ARP_MANGLE IP_NF_MATCH_AH IP_NF_MATCH_ECN IP_NF_MATCH_RPFILTER IP_NF_MATCH_TTL IP_NF_RAW IP_SCTP IRQ_REMAP IRQ_TIME_ACCOUNTING KVM KVM_INTEL LAPB LCD_CLASS_DEVICE LIBNVDIMM MAC802154 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_DLN2 MFD_VIPERBOARD MPTCP MTD NETFILTER_ADVANCED NET_ACT_GACT NET_ACT_MIRRED NET_IPGRE_DEMUX NFT_FWD_NETDEV NF_TABLES NF_TABLES_NETDEV NOP_USB_XCEIV PARPORT PCCARD PCMCIA PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RAS RC_CORE REGULATOR RFKILL SND SOUND SPI SSB STAGING TAP TARGET_CORE TRANSPARENT_HUGEPAGE TRUSTED_KEYS TUN TYPEC TYPEC_MUX_PI3USB30532 USB_AMD5536UDC USB_ATM USB_CDNSP_GADGET USB_CDNSP_HOST USB_CDNSP_PCI USB_CDNS_HOST USB_CDNS_SUPPORT USB_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_GENERIC USB_CHIPIDEA_HOST USB_CHIPIDEA_MSM USB_CHIPIDEA_PCI USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET 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_CONN_GPIO 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_HAPS USB_DWC3_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI USB_DYNAMIC_MINORS USB_EG20T USB_EHCI_FSL 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_LGM_PHY USB_LIBCOMPOSITE USB_LINK_LAYER_TEST USB_M5602 USB_MA901 USB_MAX3420_UDC 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_AQC111 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_ROLES_INTEL_XHCI USB_ROLE_SWITCH 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_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_PCI_RENESAS USB_XHCI_PLATFORM USB_XUSBATM USB_YUREX USERFAULTFD USERIO USER_RETURN_NOTIFIER 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_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 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_STK1160_COMMON 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_FS 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 WAN WANT_DEV_COREDUMP WEXT_CORE WEXT_PRIV WEXT_PROC WIREGUARD WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_SILABS X86_SGX X86_SGX_KVM X86_X2APIC 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_ONLINE_REPAIR XFS_ONLINE_SCRUB XFS_POSIX_ACL XFS_QUOTA XFS_RT XILLYBUS_CLASS XILLYUSB XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZBUD ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZONE_DEVICE ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZBUD] disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep memleak], they are not needed testing current HEAD 08889840163ebcdb7e24bf7ec311bc2e6fc3aaea testing commit 08889840163ebcdb7e24bf7ec311bc2e6fc3aaea gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 6a9a38703a88dbf3b3fb2e8fbd867409d04cf9912c3aa470c736498306c68989 all runs: OK false negative chance: 0.000 # git bisect start 08889840163ebcdb7e24bf7ec311bc2e6fc3aaea e4f7d8be268ecf717f94ee2e242afa79ddeacaed Bisecting: 2564 revisions left to test after this (roughly 11 steps) [97b4740a6d620395c7a8729c10f8cd2c0d1815ea] ALSA: usb-audio: Add quirk for Corsair Virtuoso (later revision) determine whether the revision contains the guilty commit revision e4f7d8be268ecf717f94ee2e242afa79ddeacaed crashed and is reachable testing commit 97b4740a6d620395c7a8729c10f8cd2c0d1815ea gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: ba590ac1cc9b7787e5ccffc66e4822e737ba3b46e324db053ceec6fc94f98175 all runs: OK false negative chance: 0.000 # git bisect bad 97b4740a6d620395c7a8729c10f8cd2c0d1815ea Bisecting: 1280 revisions left to test after this (roughly 10 steps) [3118451204a5a2cb80519dd7998d85956326473b] PCI/proc: Warn on writes to kernel-exclusive config space regions determine whether the revision contains the guilty commit revision e4f7d8be268ecf717f94ee2e242afa79ddeacaed crashed and is reachable testing commit 3118451204a5a2cb80519dd7998d85956326473b gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 51c10d55dc2be2994d8f9ae460432140379edec33191499706444731b4200e13 all runs: crashed: INFO: task hung in i2c_tiny_usb_disconnect representative crash: INFO: task hung in i2c_tiny_usb_disconnect, types: [HANG] # git bisect good 3118451204a5a2cb80519dd7998d85956326473b Bisecting: 640 revisions left to test after this (roughly 9 steps) [98201b46f7e33fe11af6f024fecb40fb56634225] HID: synchronize input before cleaning up a failed probe determine whether the revision contains the guilty commit revision e4f7d8be268ecf717f94ee2e242afa79ddeacaed crashed and is reachable testing commit 98201b46f7e33fe11af6f024fecb40fb56634225 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 8d3c87069b771fe0e5e1d2437469d29ff7ca16bd6471f605c87d7e76d0a99955 all runs: OK false negative chance: 0.000 # git bisect bad 98201b46f7e33fe11af6f024fecb40fb56634225 Bisecting: 319 revisions left to test after this (roughly 8 steps) [eddf53f1edb0cf7f302bd15cdb47cca90948c205] wifi: rtw89: fix HE extended capability length check determine whether the revision contains the guilty commit revision 3118451204a5a2cb80519dd7998d85956326473b crashed and is reachable testing commit eddf53f1edb0cf7f302bd15cdb47cca90948c205 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: e2c684a48e8401274f2d7ac402dbe4c39afa16ef3aede0fa1affc84978d5bc84 all runs: OK false negative chance: 0.000 # git bisect bad eddf53f1edb0cf7f302bd15cdb47cca90948c205 Bisecting: 159 revisions left to test after this (roughly 7 steps) [71153d3262517e1c02c3a66aa5094f279b2d1454] KVM: s390: Fix length check __import_wp_info() determine whether the revision contains the guilty commit revision 3118451204a5a2cb80519dd7998d85956326473b crashed and is reachable testing commit 71153d3262517e1c02c3a66aa5094f279b2d1454 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 70baa4733732d446b881b4e8975dab9c4862d25ad482324000ca6b072c640b05 all runs: OK false negative chance: 0.000 # git bisect bad 71153d3262517e1c02c3a66aa5094f279b2d1454 Bisecting: 79 revisions left to test after this (roughly 6 steps) [be0f7745f883386e5263b4e475686a81dfa87175] media: usbtv: keep device alive while ALSA card exists determine whether the revision contains the guilty commit revision e4f7d8be268ecf717f94ee2e242afa79ddeacaed crashed and is reachable testing commit be0f7745f883386e5263b4e475686a81dfa87175 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 4a29854e8a59c145cc55515c51f571511985c1d1c7706b7ba6560ae11becd7bb all runs: crashed: INFO: task hung in i2c_tiny_usb_disconnect representative crash: INFO: task hung in i2c_tiny_usb_disconnect, types: [HANG] # git bisect good be0f7745f883386e5263b4e475686a81dfa87175 Bisecting: 39 revisions left to test after this (roughly 5 steps) [21f063e3c2b11fb9078ccdfd3b23634313ce4f0c] parisc: eisa: Fix infinite loop when parsing invalid IRQ value determine whether the revision contains the guilty commit revision e4f7d8be268ecf717f94ee2e242afa79ddeacaed crashed and is reachable testing commit 21f063e3c2b11fb9078ccdfd3b23634313ce4f0c gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 804914991aa0625ebf671d5512173e9eb22acd472d6eb409441710adce700bde all runs: OK false negative chance: 0.000 # git bisect bad 21f063e3c2b11fb9078ccdfd3b23634313ce4f0c Bisecting: 19 revisions left to test after this (roughly 4 steps) [07e50cef557def076418c67051a336e4c6bd50e1] dmaengine: dw-edma: Initialize IRQ data before requesting IRQs determine whether the revision contains the guilty commit revision 3118451204a5a2cb80519dd7998d85956326473b crashed and is reachable testing commit 07e50cef557def076418c67051a336e4c6bd50e1 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 7741ec977a5c755af76ed4cb3da7f6a56cd4ac706b37bf217e764e6e55a0160e run #0: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #1: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #2: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #3: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #4: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #5: crashed: INFO: task hung in uevent_show run #6: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #7: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #8: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #9: crashed: INFO: task hung in i2c_tiny_usb_disconnect representative crash: INFO: task hung in i2c_tiny_usb_disconnect, types: [HANG] # git bisect good 07e50cef557def076418c67051a336e4c6bd50e1 Bisecting: 9 revisions left to test after this (roughly 3 steps) [1f1bcd4eca6caa3e4258d9a31925112539406eb6] i2c: core: fix debugfs UAF on adapter removal determine whether the revision contains the guilty commit revision be0f7745f883386e5263b4e475686a81dfa87175 crashed and is reachable testing commit 1f1bcd4eca6caa3e4258d9a31925112539406eb6 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 271392eda9846f21efb76803d00272b0b7d29bbed1ab33f11828d6dc9fb13aeb all runs: OK false negative chance: 0.000 # git bisect bad 1f1bcd4eca6caa3e4258d9a31925112539406eb6 Bisecting: 4 revisions left to test after this (roughly 2 steps) [8f406205003f741225f620f0e357ca0de71d45e3] kprobes: Protect kprobe_blacklist with RCU determine whether the revision contains the guilty commit revision be0f7745f883386e5263b4e475686a81dfa87175 crashed and is reachable testing commit 8f406205003f741225f620f0e357ca0de71d45e3 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 8e6ee107acc165d40c6ed2badcdcda9b1095430525345fede4ec94ca420fd4d9 run #0: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #1: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #2: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #3: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #4: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #5: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #6: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #7: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #8: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #9: crashed: INFO: task hung in uevent_show representative crash: INFO: task hung in i2c_tiny_usb_disconnect, types: [HANG] # git bisect good 8f406205003f741225f620f0e357ca0de71d45e3 Bisecting: 2 revisions left to test after this (roughly 1 step) [5b23298457234289e06fd0e5a9d2e685afe03f95] rtc: rzn1: Fix weekday underflow when alarm crosses month boundary determine whether the revision contains the guilty commit revision be0f7745f883386e5263b4e475686a81dfa87175 crashed and is reachable testing commit 5b23298457234289e06fd0e5a9d2e685afe03f95 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 902bfbef06a9bb2f636794025db14462b9c69d841c23517f50a373cbc76de058 all runs: crashed: INFO: task hung in i2c_tiny_usb_disconnect representative crash: INFO: task hung in i2c_tiny_usb_disconnect, types: [HANG] # git bisect good 5b23298457234289e06fd0e5a9d2e685afe03f95 Bisecting: 0 revisions left to test after this (roughly 1 step) [be0628a101ac05b085aaa4f650d48bd3915e80fa] perf/x86/intel: Fix kernel address leakages in LBR stack determine whether the revision contains the guilty commit revision 07e50cef557def076418c67051a336e4c6bd50e1 crashed and is reachable testing commit be0628a101ac05b085aaa4f650d48bd3915e80fa gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: ef9b80cc557818d9311eaa86708b33e9221e97d2c338cea3bf7541fc47e3ef2c run #0: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #1: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #2: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #3: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #4: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #5: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #6: crashed: INFO: task hung in uevent_show run #7: crashed: INFO: task hung in i2c_tiny_usb_disconnect run #8: crashed: INFO: task hung in uevent_show run #9: crashed: INFO: task hung in i2c_tiny_usb_disconnect representative crash: INFO: task hung in i2c_tiny_usb_disconnect, types: [HANG] # git bisect good be0628a101ac05b085aaa4f650d48bd3915e80fa 1f1bcd4eca6caa3e4258d9a31925112539406eb6 is the first bad commit commit 1f1bcd4eca6caa3e4258d9a31925112539406eb6 Author: Vasileios Almpanis Date: Wed Aug 12 11:14:48 2026 +0200 i2c: core: fix debugfs UAF on adapter removal commit b15b548d52b43ba8ac4652bc2c7244a8dd1e9622 upstream. i2c_del_adapter() frees the adapter's debugfs directory before it unregisters the adapter device, but the new_device sysfs attribute stays writable until device_del(). A write racing with removal still reaches i2c_device_probe(), which passes the freed adap->debugfs to debugfs_create_dir() as the new client's parent: BUG: KASAN: slab-use-after-free in lookup_noperm_common+0x407/0x430 Read of size 4 at addr ffff88803ef87810 by task syz.0.61/6090 lookup_noperm_common+0x407/0x430 simple_start_creating+0x9c/0x110 debugfs_start_creating+0xdb/0x1a0 debugfs_create_dir+0x24/0x350 i2c_device_probe+0x814/0xbf0 It's technically possible to create a client after i2c_deregister_clients has run. That client will never be unregistered and make wait_for_completion hang. Close the window by removing the new_device attribute at the start of i2c_del_adapter(). device_remove_file() will drain any clients left. Fixes: 73febd775bdb ("i2c: create debugfs entry per adapter") Reported-by: syzbot+23ad911c819b923238b7@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=23ad911c819b923238b7 Signed-off-by: Vasileios Almpanis Cc: # v6.8+ Tested-by: syzbot+23ad911c819b923238b7@syzkaller.appspotmail.com Signed-off-by: Andi Shyti Link: https://patch.msgid.link/20260812-i2c-v2-1-5efaab4c3334@gmail.com Signed-off-by: Greg Kroah-Hartman drivers/i2c/i2c-core-base.c | 6 ++++++ 1 file changed, 6 insertions(+) accumulated error probability: 0.00 culprit signature: 271392eda9846f21efb76803d00272b0b7d29bbed1ab33f11828d6dc9fb13aeb parent signature: ef9b80cc557818d9311eaa86708b33e9221e97d2c338cea3bf7541fc47e3ef2c revisions tested: 20, total time: 6h23m53.774887823s (build: 1h28m47.576551286s, test: 4h25m38.338967559s) first good commit: 1f1bcd4eca6caa3e4258d9a31925112539406eb6 i2c: core: fix debugfs UAF on adapter removal recipients (to): ["andi.shyti@kernel.org" "gregkh@linuxfoundation.org" "syzbot+23ad911c819b923238b7@syzkaller.appspotmail.com" "vasilisalmpanis@gmail.com"] recipients (cc): []