ci starts bisection 2023-09-08 02:33:44.414966547 +0000 UTC m=+116555.914246381 bisecting cause commit starting from 7733171926cc336ddf0c8f847eefaff569dbff86 building syzkaller on 8bc9053e88dacf57f5ce550da040d31895eb9626 ensuring issue is reproducible on original commit 7733171926cc336ddf0c8f847eefaff569dbff86 testing commit 7733171926cc336ddf0c8f847eefaff569dbff86 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: af0f4c9962d335f4a9aceb57939f8c874577cd51ddd591194243fe39b28b262b all runs: crashed: general protection fault in usb_hub_create_port_device representative crash: general protection fault in usb_hub_create_port_device, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 7733171926cc336ddf0c8f847eefaff569dbff86 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d307c704d526ae25705d09813a3943b3bb28cda1e8c3fc27ce556161adfb3f27 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in usb_hub_create_port_device representative crash: BUG: unable to handle kernel NULL pointer dereference in usb_hub_create_port_device, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=3883 full=7692 leaves diff=2019 split chunks (needed=false): <2019> split chunk #0 of len 2019 into 5 parts testing without sub-chunk 1/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 7733171926cc336ddf0c8f847eefaff569dbff86 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: aedc142a137adaad6367519b7d50c11a27520a723bab2570e53ad161dc331e9c all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in usb_hub_create_port_device representative crash: BUG: unable to handle kernel NULL pointer dereference in usb_hub_create_port_device, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 7733171926cc336ddf0c8f847eefaff569dbff86 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ab15ee89757538ad5ea3d89ee119143d359db0edcf71bff17116685684de4303 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in usb_hub_create_port_device representative crash: BUG: unable to handle kernel NULL pointer dereference in usb_hub_create_port_device, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 7733171926cc336ddf0c8f847eefaff569dbff86 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4003e5062ca6eb4873c3f5f14810d82b623f18d627f93f97bcee95564136c4ad all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in usb_hub_create_port_device representative crash: BUG: unable to handle kernel NULL pointer dereference in usb_hub_create_port_device, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 7733171926cc336ddf0c8f847eefaff569dbff86 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cdf416bc491295241076632a5384214fa5901243fb69daa709b04413d38aed64 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in usb_hub_create_port_device representative crash: BUG: unable to handle kernel NULL pointer dereference in usb_hub_create_port_device, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 7733171926cc336ddf0c8f847eefaff569dbff86 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: aa3e2deafd0de9ced9b57d219cbb03ffb51650dceef38562895c6b8830389562 all runs: OK false negative chance: 0.000 minimized to 403 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_LZO CRYPTO_ZSTD DVB_CORE EXTCON FB GPIOLIB HID_ZEROPLUS 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_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_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_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_ASYNC V4L2_FWNODE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VDPA_SIM VDPA_SIM_BLOCK VDPA_SIM_NET VDPA_USER VETH VFIO VFIO_GROUP 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 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_CAMERA_SENSOR VIDEO_CMDLINE 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_NOMODESET 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 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 XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZBUD ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZBUD] disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed picked [%!d(string=v6.5) %!d(string=v6.4) %!d(string=v6.3) %!d(string=v6.1) %!d(string=v5.19) %!d(string=v5.17) %!d(string=v5.15) %!d(string=v5.13) %!d(string=v5.10) %!d(string=v5.7) %!d(string=v5.4) %!d(string=v5.1) %!d(string=v4.19)] out of %!d(MISSING) release tags testing release v6.5 testing commit 2dde18cd1d8fac735875f2e4987f11817cc0bc2c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5bb19fd898658dd486c7b0ac5130751b7948c8bbe1a6059ab7f99b7ea34f4218 all runs: OK false negative chance: 0.000 # git bisect start 7733171926cc336ddf0c8f847eefaff569dbff86 2dde18cd1d8fac735875f2e4987f11817cc0bc2c Bisecting: 5435 revisions left to test after this (roughly 13 steps) [461f35f014466c4e26dca6be0f431f57297df3f2] Merge tag 'drm-next-2023-08-30' of git://anongit.freedesktop.org/drm/drm testing commit 461f35f014466c4e26dca6be0f431f57297df3f2 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1581a6f0feffe4a19bb39ce70e594a8619ac29e6f655df27d2ced508404db58a all runs: OK false negative chance: 0.000 # git bisect good 461f35f014466c4e26dca6be0f431f57297df3f2 Bisecting: 2716 revisions left to test after this (roughly 11 steps) [87dfd85c38923acd9517e8df4afc908565df0961] Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm testing commit 87dfd85c38923acd9517e8df4afc908565df0961 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ee2883b0447a6c3d1ecd0692b597f54154b13d7fad2277bda7b04e421e1993bc all runs: OK false negative chance: 0.000 # git bisect good 87dfd85c38923acd9517e8df4afc908565df0961 Bisecting: 1248 revisions left to test after this (roughly 10 steps) [307d59039fb26212a84a9aa6a134a7d2bdea34ca] Merge tag 'media/v6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media testing commit 307d59039fb26212a84a9aa6a134a7d2bdea34ca gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 29b0baeca31826519a3b0db709c820f4386d7bf19ca9aeabac6a4c7d3a40d8b8 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in usb_hub_create_port_device representative crash: BUG: unable to handle kernel NULL pointer dereference in usb_hub_create_port_device, types: [UNKNOWN] # git bisect bad 307d59039fb26212a84a9aa6a134a7d2bdea34ca Bisecting: 683 revisions left to test after this (roughly 10 steps) [8e1e49550dc85694abd04d86a8ee36bc98bd8b9e] Merge tag 'tty-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty testing commit 8e1e49550dc85694abd04d86a8ee36bc98bd8b9e gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b3eb66f498756944a575b55376985ff336e353d706a5aac1251aa200536f56eb all runs: OK false negative chance: 0.000 # git bisect good 8e1e49550dc85694abd04d86a8ee36bc98bd8b9e Bisecting: 341 revisions left to test after this (roughly 9 steps) [54921a8f31d81ee13bdce9c3b488cbc34c74740d] media: vivid: fix the racy dev->radio_tx_rds_owner testing commit 54921a8f31d81ee13bdce9c3b488cbc34c74740d gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 30ef88eb59585f3c4bff766098d42f08e405fd1e2964623ecd9dacc2750a8e40 all runs: OK false negative chance: 0.000 # git bisect good 54921a8f31d81ee13bdce9c3b488cbc34c74740d Bisecting: 180 revisions left to test after this (roughly 8 steps) [b587cb726467a9d1c62b4b61c284966fe677c040] fsi: i2cr: Switch to use struct i2c_driver's .probe() testing commit b587cb726467a9d1c62b4b61c284966fe677c040 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4bd97ae96bb1260a661a612778a7124d6bab9f3380c5b033bcffa827a5c656e4 all runs: OK false negative chance: 0.000 # git bisect good b587cb726467a9d1c62b4b61c284966fe677c040 Bisecting: 106 revisions left to test after this (roughly 7 steps) [eb176cb46191f20314878222d8186106e23cb711] nvmem: core: Notify when a new layout is registered testing commit eb176cb46191f20314878222d8186106e23cb711 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e1cd9b5b2e310d29123926bca5e07d47a5b3ab1d0993ec95ae57acc224a3a81e all runs: OK false negative chance: 0.000 # git bisect good eb176cb46191f20314878222d8186106e23cb711 Bisecting: 56 revisions left to test after this (roughly 6 steps) [704e2c6107f1a5353a1038bac137dda0df2a6dd0] Merge tag 'icc-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/djakov/icc into char-misc-next testing commit 704e2c6107f1a5353a1038bac137dda0df2a6dd0 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fd851341f58f7594f3777f676cee330c6972d69c3e27eadb4f0c8d26552c9e3b all runs: OK false negative chance: 0.000 # git bisect good 704e2c6107f1a5353a1038bac137dda0df2a6dd0 Bisecting: 28 revisions left to test after this (roughly 5 steps) [f7bb242601deae2bb62db40ce4edea9a6193d0d2] drivers: base: test: Add missing MODULE_* macros to root device tests testing commit f7bb242601deae2bb62db40ce4edea9a6193d0d2 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 150efa5a56715b6c16d05486421b5d9b6aebdd10f496c02b1bdd85a9c14e10a0 all runs: OK false negative chance: 0.000 # git bisect good f7bb242601deae2bb62db40ce4edea9a6193d0d2 Bisecting: 14 revisions left to test after this (roughly 4 steps) [f5f17f0cb5abefc7e0341d3257a8b9fc39f81700] media: bttv: use audio defaults for winfast2000 testing commit f5f17f0cb5abefc7e0341d3257a8b9fc39f81700 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4726d6a0820c5448464bc57b93646239b6265eabf2be74df509d74cbad609250 all runs: OK false negative chance: 0.000 # git bisect good f5f17f0cb5abefc7e0341d3257a8b9fc39f81700 Bisecting: 8 revisions left to test after this (roughly 3 steps) [1c9f8dff62d85ce00b0e99f774a84bd783af7cac] Merge tag 'char-misc-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc testing commit 1c9f8dff62d85ce00b0e99f774a84bd783af7cac gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 639597c4606b5c3792ad9e11381d890a768db0b63bdd197beaca06c657c4f1be all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in usb_hub_create_port_device representative crash: BUG: unable to handle kernel NULL pointer dereference in usb_hub_create_port_device, types: [UNKNOWN] # git bisect bad 1c9f8dff62d85ce00b0e99f774a84bd783af7cac Bisecting: 2 revisions left to test after this (roughly 2 steps) [d21fdd07cea418c0d98c8a15fc95b8b8970801e7] driver core: Return proper error code when dev_set_name() fails testing commit d21fdd07cea418c0d98c8a15fc95b8b8970801e7 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dfb11558db07f104e48144b65724ea841dda0928e1929227d09152349561e285 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in usb_hub_create_port_device representative crash: BUG: unable to handle kernel NULL pointer dereference in usb_hub_create_port_device, types: [UNKNOWN] # git bisect bad d21fdd07cea418c0d98c8a15fc95b8b8970801e7 Bisecting: 0 revisions left to test after this (roughly 1 step) [1b28cb81dab7c1eedc6034206f4e8d644046ad31] kobject: Remove redundant checks for whether ktype is NULL testing commit 1b28cb81dab7c1eedc6034206f4e8d644046ad31 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9a9be54b5cecfa932f108e2ee0684eb2a781c112287a1e1a29086345b272d44f all runs: OK false negative chance: 0.000 # git bisect good 1b28cb81dab7c1eedc6034206f4e8d644046ad31 d21fdd07cea418c0d98c8a15fc95b8b8970801e7 is the first bad commit commit d21fdd07cea418c0d98c8a15fc95b8b8970801e7 Author: Andy Shevchenko Date: Thu Aug 17 12:12:21 2023 +0300 driver core: Return proper error code when dev_set_name() fails Whe device_add() tries to assign a device name with help of dev_set_name() the error path explicitly uses -EINVAL, while the function may return something different. Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20230817091221.463721-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman drivers/base/core.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) accumulated error probability: 0.00 culprit signature: dfb11558db07f104e48144b65724ea841dda0928e1929227d09152349561e285 parent signature: 9a9be54b5cecfa932f108e2ee0684eb2a781c112287a1e1a29086345b272d44f revisions tested: 21, total time: 8h34m43.922463943s (build: 4h38m15.968435341s, test: 3h40m43.479317246s) first bad commit: d21fdd07cea418c0d98c8a15fc95b8b8970801e7 driver core: Return proper error code when dev_set_name() fails recipients (to): ["andriy.shevchenko@linux.intel.com" "gregkh@linuxfoundation.org" "gregkh@linuxfoundation.org" "linux-kernel@vger.kernel.org"] recipients (cc): ["rafael@kernel.org"] crash: BUG: unable to handle kernel NULL pointer dereference in usb_hub_create_port_device RAX: ffffffffffffffda RBX: 00007fa22877ff80 RCX: 00007fa228660ae9 RDX: 0000000020000040 RSI: 00000000c0105512 RDI: 0000000000000003 RBP: 00007fa2281e3120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 000000000000000b R14: 00007fa22877ff80 R15: 00007ffd42e1ae68 BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 10e7c9067 P4D 10e7c9067 PUD 106ac0067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 2600 Comm: syz-executor.0 Not tainted 6.5.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 RIP: 0010:strchr+0x4/0x30 lib/string.c:329 Code: c0 eb 0d 84 c9 74 18 48 83 c0 01 48 39 d0 74 0f 0f b6 0c 07 3a 0c 06 74 ea 19 c0 83 c8 01 c3 31 c0 c3 0f 1f 40 00 f3 0f 1e fa <0f> b6 07 89 f2 40 38 f0 75 0e eb 13 0f b6 47 01 48 83 c7 01 38 d0 RSP: 0018:ffffc90000ee3ac8 EFLAGS: 00010246 RAX: ffffc90000ee3b30 RBX: 0000000000000000 RCX: 0000000000000007 RDX: ffffc90000ee3b10 RSI: 0000000000000025 RDI: 0000000000000000 RBP: ffffc90000ee3b10 R08: 0000000000000000 R09: 0000000000000000 R10: ffffc90000ee3b60 R11: 0000000000000004 R12: 0000000000000cc0 R13: ffff888109a6c878 R14: ffff888115aae808 R15: 0000000000000000 FS: 00007fa2281e36c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000001135c9000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kvasprintf_const+0x1e/0xa0 lib/kasprintf.c:45 kobject_set_name_vargs+0x20/0x90 lib/kobject.c:272 kobject_add_varg lib/kobject.c:366 [inline] kobject_add+0x84/0x100 lib/kobject.c:424 device_add+0xe4/0x8d0 drivers/base/core.c:3562 usb_hub_create_port_device+0x127/0x3a0 drivers/usb/core/port.c:713 hub_configure drivers/usb/core/hub.c:1662 [inline] hub_probe+0x8e9/0xfc0 drivers/usb/core/hub.c:1899 usb_probe_interface+0xe7/0x2c0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0xb6/0x3c0 drivers/base/dd.c:658 __driver_probe_device+0x73/0x150 drivers/base/dd.c:800 driver_probe_device+0x1a/0x90 drivers/base/dd.c:830 __device_attach_driver+0x75/0xf0 drivers/base/dd.c:958 bus_for_each_drv+0x90/0xe0 drivers/base/bus.c:457 __device_attach+0xaf/0x1b0 drivers/base/dd.c:1030 proc_ioctl+0x1d3/0x230 drivers/usb/core/devio.c:2365 proc_ioctl_default drivers/usb/core/devio.c:2400 [inline] usbdev_do_ioctl drivers/usb/core/devio.c:2756 [inline] usbdev_ioctl+0x14fc/0x1610 drivers/usb/core/devio.c:2816 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x8b/0xc0 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fa228660ae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa2281e30c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fa22877ff80 RCX: 00007fa228660ae9 RDX: 0000000020000040 RSI: 00000000c0105512 RDI: 0000000000000003 RBP: 00007fa2281e3120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 000000000000000b R14: 00007fa22877ff80 R15: 00007ffd42e1ae68 Modules linked in: CR2: 0000000000000000 ---[ end trace 0000000000000000 ]--- RIP: 0010:strchr+0x4/0x30 lib/string.c:329 Code: c0 eb 0d 84 c9 74 18 48 83 c0 01 48 39 d0 74 0f 0f b6 0c 07 3a 0c 06 74 ea 19 c0 83 c8 01 c3 31 c0 c3 0f 1f 40 00 f3 0f 1e fa <0f> b6 07 89 f2 40 38 f0 75 0e eb 13 0f b6 47 01 48 83 c7 01 38 d0 RSP: 0018:ffffc90000ee3ac8 EFLAGS: 00010246 RAX: ffffc90000ee3b30 RBX: 0000000000000000 RCX: 0000000000000007 RDX: ffffc90000ee3b10 RSI: 0000000000000025 RDI: 0000000000000000 RBP: ffffc90000ee3b10 R08: 0000000000000000 R09: 0000000000000000 R10: ffffc90000ee3b60 R11: 0000000000000004 R12: 0000000000000cc0 R13: ffff888109a6c878 R14: ffff888115aae808 R15: 0000000000000000 FS: 00007fa2281e36c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000001135c9000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: c0 eb 0d shr $0xd,%bl 3: 84 c9 test %cl,%cl 5: 74 18 je 0x1f 7: 48 83 c0 01 add $0x1,%rax b: 48 39 d0 cmp %rdx,%rax e: 74 0f je 0x1f 10: 0f b6 0c 07 movzbl (%rdi,%rax,1),%ecx 14: 3a 0c 06 cmp (%rsi,%rax,1),%cl 17: 74 ea je 0x3 19: 19 c0 sbb %eax,%eax 1b: 83 c8 01 or $0x1,%eax 1e: c3 ret 1f: 31 c0 xor %eax,%eax 21: c3 ret 22: 0f 1f 40 00 nopl 0x0(%rax) 26: f3 0f 1e fa endbr64 * 2a: 0f b6 07 movzbl (%rdi),%eax <-- trapping instruction 2d: 89 f2 mov %esi,%edx 2f: 40 38 f0 cmp %sil,%al 32: 75 0e jne 0x42 34: eb 13 jmp 0x49 36: 0f b6 47 01 movzbl 0x1(%rdi),%eax 3a: 48 83 c7 01 add $0x1,%rdi 3e: 38 d0 cmp %dl,%al