ci starts bisection 2023-10-15 01:54:00.330100863 +0000 UTC m=+166166.826203162 bisecting fixing commit since 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: 7adc051544adcf04307a2c9b5c4cee6cf1264a5448058535525131d120280da8 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 [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: a2c6d98ad12ef647a1e30a6577aca107e29ab896daea4652d1a810082b333fcf 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 [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], 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: bc001e2b6220689cb95b440a5b8c193173d9ed814fd76ac0fc4ca9e8dfa841d3 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: 5722823403d91443dfc5e8898df2503cff8c2d4cbfbbfeb5a0b169aeeaf39d25 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 [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: e9ddd7c0187a00455172656d87997b7c2316f42b6bf011211bbd9828448eab10 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 [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], 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: 7b3fc99d829ac59f49beb4a77d6609e98c730419ca4b4b50600cf948add5dac3 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: 370b598ddc477eba2a1c0cd935ed6c432c7460fc23a1358fcf094d85ae0424e9 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 [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing current HEAD dc9b2e683bcba017588b9aaad80f442ad004a48f testing commit dc9b2e683bcba017588b9aaad80f442ad004a48f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 56d54cdee25c2ef4153a68c3aa29c5321988cfd44cb21d2dd7ffe217a0f9b551 all runs: OK false negative chance: 0.000 # git bisect start dc9b2e683bcba017588b9aaad80f442ad004a48f 7733171926cc336ddf0c8f847eefaff569dbff86 Bisecting: 1423 revisions left to test after this (roughly 11 steps) [aed8aee11130a954356200afa3f1b8753e8a9482] Merge tag 'pmdomain-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm determine whether the revision contains the guilty commit revision 7733171926cc336ddf0c8f847eefaff569dbff86 crashed and is reachable testing commit aed8aee11130a954356200afa3f1b8753e8a9482 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c82a4437fc5854d32093bec94c1ef629aaaf314b1d37928999cd7fd13dac0375 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 good aed8aee11130a954356200afa3f1b8753e8a9482 Bisecting: 714 revisions left to test after this (roughly 10 steps) [71e58659bfc02e4171345f80b13d6485e9cdf687] Merge tag 'gpio-fixes-for-v6.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux determine whether the revision contains the guilty commit revision 7733171926cc336ddf0c8f847eefaff569dbff86 crashed and is reachable testing commit 71e58659bfc02e4171345f80b13d6485e9cdf687 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a0177d3b36444567707ea2c8ba69cfe7d54fd3e5849c40061f912dbf97893dcb all runs: OK false negative chance: 0.000 # git bisect bad 71e58659bfc02e4171345f80b13d6485e9cdf687 Bisecting: 367 revisions left to test after this (roughly 9 steps) [b5cbe7c00aa0f7a81ec40c007f81a3e9c84581e3] Merge tag 'v6.6-rc3.vfs.ctime.revert' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs determine whether the revision contains the guilty commit revision 7733171926cc336ddf0c8f847eefaff569dbff86 crashed and is reachable testing commit b5cbe7c00aa0f7a81ec40c007f81a3e9c84581e3 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 05db50e669be61443e17eaa519ae49a35a563408448b2de51af0880f1cadd5d9 all runs: OK false negative chance: 0.000 # git bisect bad b5cbe7c00aa0f7a81ec40c007f81a3e9c84581e3 Bisecting: 172 revisions left to test after this (roughly 7 steps) [f0b0d403eabbe135d8dbb40ad5e41018947d336c] Merge tag 'kbuild-fixes-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild determine whether the revision contains the guilty commit revision aed8aee11130a954356200afa3f1b8753e8a9482 crashed and is reachable testing commit f0b0d403eabbe135d8dbb40ad5e41018947d336c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c628548a858f510df75a4de0576cfa23319b7eb502a9a6d1edde8d68991cd24d all runs: OK false negative chance: 0.000 # git bisect bad f0b0d403eabbe135d8dbb40ad5e41018947d336c Bisecting: 78 revisions left to test after this (roughly 6 steps) [9608c7b729e29c177525006711966ae0fd399b11] Merge tag 'drm-fixes-2023-09-15' of git://anongit.freedesktop.org/drm/drm determine whether the revision contains the guilty commit revision 7733171926cc336ddf0c8f847eefaff569dbff86 crashed and is reachable testing commit 9608c7b729e29c177525006711966ae0fd399b11 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5102927b6ad81c57332ff562099c457867f6dbd16e3f3983bcda5250de53a986 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 good 9608c7b729e29c177525006711966ae0fd399b11 Bisecting: 36 revisions left to test after this (roughly 5 steps) [c37f8efcbce1e03aaba5278cb8e291955754b020] Merge tag 'i2c-for-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux determine whether the revision contains the guilty commit revision 9608c7b729e29c177525006711966ae0fd399b11 crashed and is reachable testing commit c37f8efcbce1e03aaba5278cb8e291955754b020 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bc6bcc0400181be073c4ff20793aba750f854b90fd6229b8e2e86ae81e10e50c 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 good c37f8efcbce1e03aaba5278cb8e291955754b020 Bisecting: 19 revisions left to test after this (roughly 4 steps) [dae40be7a1a72474e225795c0d6f43a4ac596a3f] scsi: lpfc: Prevent use-after-free during rmmod with mapped NVMe rports determine whether the revision contains the guilty commit revision 7733171926cc336ddf0c8f847eefaff569dbff86 crashed and is reachable testing commit dae40be7a1a72474e225795c0d6f43a4ac596a3f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 83a32ff9007b88f00c360f41e404f5b60d4fb4a8f88129de668454efa7c1510e 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 good dae40be7a1a72474e225795c0d6f43a4ac596a3f Bisecting: 12 revisions left to test after this (roughly 3 steps) [5e35a9ac3fe3a0d571b899a16ca84253e53dc70c] ata: libata-core: fetch sense data for successful commands iff CDL enabled determine whether the revision contains the guilty commit revision 7733171926cc336ddf0c8f847eefaff569dbff86 crashed and is reachable testing commit 5e35a9ac3fe3a0d571b899a16ca84253e53dc70c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3b1af32755db43b8a90b5fd457d8db1257c35b7797b159d09249217e04701240 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 good 5e35a9ac3fe3a0d571b899a16ca84253e53dc70c Bisecting: 5 revisions left to test after this (roughly 3 steps) [cce67b6bedd3e28939446508ebd94d91305b8ace] Merge tag 'usb-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb determine whether the revision contains the guilty commit revision 9608c7b729e29c177525006711966ae0fd399b11 crashed and is reachable testing commit cce67b6bedd3e28939446508ebd94d91305b8ace gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2b84df83278c25191554624b52d64fa539d878551ec8002e82115ed4d79763ce all runs: OK false negative chance: 0.000 # git bisect bad cce67b6bedd3e28939446508ebd94d91305b8ace Bisecting: 4 revisions left to test after this (roughly 2 steps) [139e08188babf7a4c5f0df54b605105852fc347a] Documentation: embargoed-hardware-issues.rst: Add myself for RISC-V determine whether the revision contains the guilty commit revision 7733171926cc336ddf0c8f847eefaff569dbff86 crashed and is reachable testing commit 139e08188babf7a4c5f0df54b605105852fc347a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: efb76f50fbf02542f0cefc594c259513aeead1042d5b22a13c98e2c6e452dea2 all runs: OK false negative chance: 0.000 # git bisect bad 139e08188babf7a4c5f0df54b605105852fc347a Bisecting: 0 revisions left to test after this (roughly 0 steps) [fd6f7ad2fd4d53fa14f4fd190f9b05d043973892] driver core: return an error when dev_set_name() hasn't happened determine whether the revision contains the guilty commit revision 7733171926cc336ddf0c8f847eefaff569dbff86 crashed and is reachable testing commit fd6f7ad2fd4d53fa14f4fd190f9b05d043973892 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 45d9029551364649e9ada09f65b6ffb24719fa0cb3582cc1d18ef2371dac1207 all runs: OK false negative chance: 0.000 # git bisect bad fd6f7ad2fd4d53fa14f4fd190f9b05d043973892 fd6f7ad2fd4d53fa14f4fd190f9b05d043973892 is the first bad commit commit fd6f7ad2fd4d53fa14f4fd190f9b05d043973892 Author: Andy Shevchenko Date: Mon Aug 28 17:58:24 2023 +0300 driver core: return an error when dev_set_name() hasn't happened The commit d21fdd07cea4 ("driver core: Return proper error code when dev_set_name() fails") rewrote the logic of handling the dev_set_name() error codes, but missed the point that initially set error value to -EINVAL might be rewritten and hence the error path can't be triggered at some circumstances. To fix this, make sure that error variable is set to -EINVAL when other conditionals are false. Reported-by: syzbot+bdfb03b1ec8b342c12cb@syzkaller.appspotmail.com Fixes: d21fdd07cea4 ("driver core: Return proper error code when dev_set_name() fails") Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20230828145824.3895288-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman drivers/base/core.c | 2 ++ 1 file changed, 2 insertions(+) accumulated error probability: 0.00 parent commit 0bb80ecc33a8fb5a682236443c1e740d5c917d1d wasn't tested testing commit 0bb80ecc33a8fb5a682236443c1e740d5c917d1d gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f9920040cac0555fecf890ccb0a3390f397503b4304a724ed5a0e2c36137d673 culprit signature: 45d9029551364649e9ada09f65b6ffb24719fa0cb3582cc1d18ef2371dac1207 parent signature: f9920040cac0555fecf890ccb0a3390f397503b4304a724ed5a0e2c36137d673 revisions tested: 19, total time: 4h25m5.086890591s (build: 1h39m44.224476036s, test: 2h32m14.438744251s) first good commit: fd6f7ad2fd4d53fa14f4fd190f9b05d043973892 driver core: return an error when dev_set_name() hasn't happened recipients (to): ["andriy.shevchenko@linux.intel.com" "gregkh@linuxfoundation.org" "gregkh@linuxfoundation.org" "linux-kernel@vger.kernel.org"] recipients (cc): ["rafael@kernel.org"]