ci starts bisection 2023-11-16 01:38:38.00685459 +0000 UTC m=+201680.982020553 bisecting cause commit starting from 1fda5bb66ad8fb24ecb3858e61a13a6548428898 building syzkaller on cb976f63e0177b96eb9ce1c631cc5e2c4b4b0759 ensuring issue is reproducible on original commit 1fda5bb66ad8fb24ecb3858e61a13a6548428898 testing commit 1fda5bb66ad8fb24ecb3858e61a13a6548428898 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ceadb9935bb41faf203cda97746524b34b5df7aabbe7391e351f58da4e523547 all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, 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 1fda5bb66ad8fb24ecb3858e61a13a6548428898 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8cf8f60b7f98156ef2ba474f07bb82189b0bff5f7e341dd78bea58a223b9e594 all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, 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=3923 full=7659 leaves diff=2007 split chunks (needed=false): <2007> split chunk #0 of len 2007 into 5 parts testing without sub-chunk 1/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 1fda5bb66ad8fb24ecb3858e61a13a6548428898 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bc28332bd0947d4b06c81b90b1e1a3311efefa8f5870c0354fb3db92996c8b66 all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 1fda5bb66ad8fb24ecb3858e61a13a6548428898 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e85ff682e338474e16afa99f2198f392ffd00bb8229af23a18322b2003846ac6 all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, 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 1fda5bb66ad8fb24ecb3858e61a13a6548428898 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0703d8c5418cb2396187fe387296b48be014ddafbc9da911906465024faf1d6c all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 1fda5bb66ad8fb24ecb3858e61a13a6548428898 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 186d417f4a11674371dbda90f8ce605cca82ef1828bf9fd4554e746bc937225a all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 1fda5bb66ad8fb24ecb3858e61a13a6548428898 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b25330619362d28e114bb8f600795644edb937730eb08a9d31b2b66e03d56d5f all runs: OK false negative chance: 0.000 minimized to 399 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_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 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_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 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_ZSMALLOC] disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed picked [v6.6 v6.5 v6.4 v6.2 v6.0 v5.18 v5.16 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 29 release tags testing release v6.6 testing commit ffc253263a1375a65fa6c9f62a893e9767fbebfa gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8f2b4213c757fdf2f6b76d2367e0ef42cde77adc4656c4b1568bab9e8e828efa all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] 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: bb4924f1a103979553c3b7fba8144890d6edfacf339ac96679a0a41c993cfc0c all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] testing release v6.4 testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 63e0fe23ccac39f3f0c5ad687f212964e7f0943e39624a3564e796be43f07095 all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] testing release v6.2 testing commit c9c3395d5e3dcc6daee66c6908354d47bf98cb0c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 05c2ae85caa240c795e1431fb01a982028a4f6ca7282733c0ee5f47131699dfd all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] testing release v6.0 testing commit 4fe89d07dcc2804c8b562f6c7896a45643d34b2f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b5d69ac84376335ee4f540d93c6029ceaef1b82206a3966594a54ed85b58c94b all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] testing release v5.18 testing commit 4b0986a3613c92f4ec1bdc7f60ec66fea135991f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ca1f057ce61236636597ad5b8d26a923cfa7c71c2ef8e722ca6413c7333906bb all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] testing release v5.16 testing commit df0cc57e057f18e44dac8e6c18aba47ab53202f9 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8ee7043333898c30d6961298a4f8584d7ab1e300d11897b1e7781605f95a322d all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] testing release v5.14 testing commit 7d2a07b769330c34b4deabeed939325c77a7ec2f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 409e8a4ceeed2d90159788ca7fa2cd8b5624199f22c7e5c58c97e390a8c5a304 all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] testing release v5.11 testing commit f40ddce88593482919761f74910f42f4b84c004b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 997b2c8419336c8f77ca0c6252913c4fbb5e69d9c0f36db01d356b40755572b9 all runs: OK false negative chance: 0.000 # git bisect start 7d2a07b769330c34b4deabeed939325c77a7ec2f f40ddce88593482919761f74910f42f4b84c004b Bisecting: 24610 revisions left to test after this (roughly 15 steps) [85f3f17b5db2dd9f8a094a0ddc665555135afd22] Merge branch 'md-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md into block-5.13 testing commit 85f3f17b5db2dd9f8a094a0ddc665555135afd22 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8a9c6c4328a3fe35d449a4feed2f3d6ba28e40682ee2c115237b03458acddd67 all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] # git bisect bad 85f3f17b5db2dd9f8a094a0ddc665555135afd22 Bisecting: 11313 revisions left to test after this (roughly 14 steps) [e216674a5b5781694223ff3f0c4f2cc721a36ab0] Merge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue testing commit e216674a5b5781694223ff3f0c4f2cc721a36ab0 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 810b594d4bd8b4a0fbe58cdc921d033330dea1ca832778f320fee47b29bfbd53 all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] # git bisect bad e216674a5b5781694223ff3f0c4f2cc721a36ab0 Bisecting: 5786 revisions left to test after this (roughly 13 steps) [de1617578849acab8e16c9ffdce39b91fb50639d] Merge tag 'media/v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media testing commit de1617578849acab8e16c9ffdce39b91fb50639d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6eea10d8e0fd2475d8530c6b25b3b42b9374a36aff1e07dfcc313e86c0850583 all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] # git bisect bad de1617578849acab8e16c9ffdce39b91fb50639d Bisecting: 2703 revisions left to test after this (roughly 12 steps) [e767b3530acbf651593e3d357fe1168a024d8061] Merge tag 'arm-drivers-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc testing commit e767b3530acbf651593e3d357fe1168a024d8061 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2a2e216a44ba5fcb1bd699ab3833d5ef30d9ac9701002cfa739a08a34bf9ae27 all runs: OK false negative chance: 0.000 # git bisect good e767b3530acbf651593e3d357fe1168a024d8061 Bisecting: 1381 revisions left to test after this (roughly 10 steps) [582cd91f69de8e44857cb610ebca661dac8656b7] Merge tag 'for-5.12/block-2021-02-17' of git://git.kernel.dk/linux-block testing commit 582cd91f69de8e44857cb610ebca661dac8656b7 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 901892d9801629e6927765381d777dec1e24d5c929444f40f663138809acaa6b all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] # git bisect bad 582cd91f69de8e44857cb610ebca661dac8656b7 Bisecting: 669 revisions left to test after this (roughly 9 steps) [5d99aa093b566d234b51b7822c67059e2bd3ed8d] Merge tag 'staging-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging testing commit 5d99aa093b566d234b51b7822c67059e2bd3ed8d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9f5c7478ce6ecb923d0e84f619b5f046a2caee36ebf84d04b79f5878b1f3c441 all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] # git bisect bad 5d99aa093b566d234b51b7822c67059e2bd3ed8d Bisecting: 342 revisions left to test after this (roughly 8 steps) [b5a12546e779d4f5586f58e60e0ef5070a833a64] dt-bindings: usb: mediatek: musb: add mt8516 compatbile testing commit b5a12546e779d4f5586f58e60e0ef5070a833a64 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c2f5e62420f617cf521e605f78c0b336100048a7fa764bd7ee74b73fc526e78c all runs: OK false negative chance: 0.000 # git bisect good b5a12546e779d4f5586f58e60e0ef5070a833a64 Bisecting: 171 revisions left to test after this (roughly 8 steps) [588007fb8ff8b09508dbfe39c0a8697b3cc2bfae] staging: rtl8723bs: remove blank line from include/autoconf.h testing commit 588007fb8ff8b09508dbfe39c0a8697b3cc2bfae gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8fb95156cf7cb88abfdc7e7dc0e944744a00454fda8032f11238dd871472bd84 all runs: OK false negative chance: 0.000 # git bisect good 588007fb8ff8b09508dbfe39c0a8697b3cc2bfae Bisecting: 84 revisions left to test after this (roughly 7 steps) [26a30ffff952390499a95a0accad0c49379e5301] Merge tag 'x86_build_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 26a30ffff952390499a95a0accad0c49379e5301 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dcbecd6b01f385c10c133324c7d18f6da47196b08e4a8fc936123a8c146c28df all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] # git bisect bad 26a30ffff952390499a95a0accad0c49379e5301 Bisecting: 45 revisions left to test after this (roughly 6 steps) [1255f44017c02d14e3ad5b63cdf619a734d765a1] Merge tag 'x86_paravirt_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 1255f44017c02d14e3ad5b63cdf619a734d765a1 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 67203c844a7b6a77a0e538932ac9f0cfbe15f71961a53f1a0653d124f6069f86 all runs: OK false negative chance: 0.000 # git bisect good 1255f44017c02d14e3ad5b63cdf619a734d765a1 Bisecting: 21 revisions left to test after this (roughly 5 steps) [40c1fa52cdb7c13ef88232e374b4b8ac8d820c4f] Merge branch 'x86/cleanups' into x86/mm testing commit 40c1fa52cdb7c13ef88232e374b4b8ac8d820c4f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 19713d5815067c1591f8b24f358cfc9f64112b1dc77cbb66f23ec63c285af200 all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] # git bisect bad 40c1fa52cdb7c13ef88232e374b4b8ac8d820c4f Bisecting: 11 revisions left to test after this (roughly 4 steps) [66fcd98883816dba3b66da20b5fc86fa410638b5] x86/fault: Don't look for extable entries for SMEP violations testing commit 66fcd98883816dba3b66da20b5fc86fa410638b5 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c0e84536a8aadee4b9d6b858be865d59c33d80e0e40d56e143f16d81089ccad0 all runs: OK false negative chance: 0.000 # git bisect good 66fcd98883816dba3b66da20b5fc86fa410638b5 Bisecting: 5 revisions left to test after this (roughly 3 steps) [8ece53ef7f428ee3f8eab936268b1a3fe2725e6b] x86/vm86/32: Remove VM86_SCREEN_BITMAP support testing commit 8ece53ef7f428ee3f8eab936268b1a3fe2725e6b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2b7464e9b120ac59addf24c11bff93344e0eb5e4cf59501ca6d62b85897bdc79 all runs: OK false negative chance: 0.000 # git bisect good 8ece53ef7f428ee3f8eab936268b1a3fe2725e6b Bisecting: 2 revisions left to test after this (roughly 2 steps) [3228e1dc80983ee1f5d2e533d010b3bd8b50f0e2] x86/Kconfig: Remove HPET_EMULATE_RTC depends on RTC testing commit 3228e1dc80983ee1f5d2e533d010b3bd8b50f0e2 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1d6a49ce1527c7cc684f8fee9c1942c76dcbd806636bf8db5b3cd732eb9dcc88 all runs: OK false negative chance: 0.000 # git bisect good 3228e1dc80983ee1f5d2e533d010b3bd8b50f0e2 Bisecting: 0 revisions left to test after this (roughly 1 step) [c46f52231e79af025e2c89e889d69ec20a4c024f] x86/{fault,efi}: Fix and rename efi_recover_from_page_fault() testing commit c46f52231e79af025e2c89e889d69ec20a4c024f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a022f418a0caaf6e34dbade3d44913f855d343eccc6863d148055800cf96775a all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] # git bisect bad c46f52231e79af025e2c89e889d69ec20a4c024f Bisecting: 0 revisions left to test after this (roughly 0 steps) [ca247283781d754216395a41c5e8be8ec79a5f1c] x86/fault: Don't run fixups for SMAP violations testing commit ca247283781d754216395a41c5e8be8ec79a5f1c gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a022f418a0caaf6e34dbade3d44913f855d343eccc6863d148055800cf96775a all runs: crashed: BUG: unable to handle kernel paging request in copy_from_kernel_nofault representative crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault, types: [UNKNOWN] # git bisect bad ca247283781d754216395a41c5e8be8ec79a5f1c ca247283781d754216395a41c5e8be8ec79a5f1c is the first bad commit commit ca247283781d754216395a41c5e8be8ec79a5f1c Author: Andy Lutomirski Date: Tue Feb 9 18:33:45 2021 -0800 x86/fault: Don't run fixups for SMAP violations A SMAP-violating kernel access is not a recoverable condition. Imagine kernel code that, outside of a uaccess region, dereferences a pointer to the user range by accident. If SMAP is on, this will reliably generate as an intentional user access. This makes it easy for bugs to be overlooked if code is inadequately tested both with and without SMAP. This was discovered because BPF can generate invalid accesses to user memory, but those warnings only got printed if SMAP was off. Make it so that this type of error will be discovered with SMAP on as well. [ bp: Massage commit message. ] Signed-off-by: Andy Lutomirski Signed-off-by: Borislav Petkov Link: https://lkml.kernel.org/r/66a02343624b1ff46f02a838c497fc05c1a871b3.1612924255.git.luto@kernel.org arch/x86/mm/fault.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) accumulated error probability: 0.00 culprit signature: a022f418a0caaf6e34dbade3d44913f855d343eccc6863d148055800cf96775a parent signature: c0e84536a8aadee4b9d6b858be865d59c33d80e0e40d56e143f16d81089ccad0 revisions tested: 32, total time: 9h50m30.296519778s (build: 5h22m16.059786003s, test: 4h6m2.905547201s) first bad commit: ca247283781d754216395a41c5e8be8ec79a5f1c x86/fault: Don't run fixups for SMAP violations recipients (to): ["bp@suse.de" "dave.hansen@linux.intel.com" "linux-kernel@vger.kernel.org" "luto@kernel.org" "luto@kernel.org" "peterz@infradead.org"] recipients (cc): ["bp@alien8.de" "hpa@zytor.com" "mingo@redhat.com" "tglx@linutronix.de" "x86@kernel.org"] crash: BUG: unable to handle kernel paging request in copy_from_kernel_nofault BUG: unable to handle page fault for address: ffffffffff600000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 2c24067 P4D 2c24067 PUD 2c26067 PMD 2c49067 PTE 0 Oops: 0000 [#1] SMP CPU: 0 PID: 2136 Comm: udevd Not tainted 5.11.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:copy_from_kernel_nofault mm/maccess.c:31 [inline] RIP: 0010:copy_from_kernel_nofault+0x4e/0xf0 mm/maccess.c:25 Code: 25 40 6f 01 00 83 80 f8 14 00 00 01 49 83 fc 07 76 3f 31 c9 eb 12 49 83 ec 08 48 83 c5 08 48 83 c3 08 49 83 fc 07 76 29 89 c8 <48> 8b 13 85 c0 48 89 55 00 74 e1 65 48 8b 04 25 40 6f 01 00 83 a8 RSP: 0018:ffffc90006afbaf0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffffffff600000 RCX: 0000000000000000 RDX: 00007fffffffffff RSI: 0000000000000008 RDI: ffffffffff600000 RBP: ffffc90006afbb70 R08: 0000000000000246 R09: 0000000000000000 R10: 0000000000000000 R11: ffff88810ca19e00 R12: 0000000000000008 R13: ffffffffff600000 R14: ffff88810c7c3000 R15: 0000000000000001 FS: 00007f368af30c80(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600000 CR3: 000000010c822000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bpf_probe_read_kernel_common kernel/trace/bpf_trace.c:225 [inline] ____bpf_probe_read_kernel kernel/trace/bpf_trace.c:237 [inline] bpf_probe_read_kernel+0x2e/0x60 kernel/trace/bpf_trace.c:234 ___bpf_prog_run+0xe0/0x19a0 kernel/bpf/core.c:1513 __bpf_prog_run32+0x34/0x60 kernel/bpf/core.c:1678 bpf_dispatcher_nop_func include/linux/bpf.h:651 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2088 [inline] bpf_trace_run2+0x52/0xc0 kernel/trace/bpf_trace.c:2125 trace_kfree include/trace/events/kmem.h:138 [inline] kfree+0x1e0/0x500 mm/slub.c:4108 tomoyo_realpath_from_path+0x37/0x180 security/tomoyo/realpath.c:253 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0xe9/0x1e0 security/tomoyo/file.c:822 security_inode_getattr+0x25/0x40 security/security.c:1280 vfs_getattr fs/stat.c:121 [inline] vfs_statx+0x80/0x120 fs/stat.c:189 vfs_fstatat fs/stat.c:207 [inline] __do_sys_newfstatat+0x31/0x70 fs/stat.c:376 do_syscall_64+0x2e/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f368b05b5f4 Code: 64 c7 00 09 00 00 00 83 c8 ff c3 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 00 00 00 00 41 89 ca b8 06 01 00 00 0f 05 <45> 31 c0 3d 00 f0 ff ff 76 10 48 8b 15 03 a8 0d 00 f7 d8 41 83 c8 RSP: 002b:00007ffddb88b908 EFLAGS: 00000206 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 00007f368b133460 RCX: 00007f368b05b5f4 RDX: 00007ffddb88b910 RSI: 00007f368b0f8130 RDI: 000000000000000c RBP: 0000559f401c5ea0 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000001000 R11: 0000000000000206 R12: 0000000000000006 R13: 0000000000000006 R14: 0000559f401c5ea0 R15: 0000000000000000 Modules linked in: CR2: ffffffffff600000 ---[ end trace 0b9394f3a8b89183 ]--- RIP: 0010:copy_from_kernel_nofault mm/maccess.c:31 [inline] RIP: 0010:copy_from_kernel_nofault+0x4e/0xf0 mm/maccess.c:25 Code: 25 40 6f 01 00 83 80 f8 14 00 00 01 49 83 fc 07 76 3f 31 c9 eb 12 49 83 ec 08 48 83 c5 08 48 83 c3 08 49 83 fc 07 76 29 89 c8 <48> 8b 13 85 c0 48 89 55 00 74 e1 65 48 8b 04 25 40 6f 01 00 83 a8 RSP: 0018:ffffc90006afbaf0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffffffff600000 RCX: 0000000000000000 RDX: 00007fffffffffff RSI: 0000000000000008 RDI: ffffffffff600000 RBP: ffffc90006afbb70 R08: 0000000000000246 R09: 0000000000000000 R10: 0000000000000000 R11: ffff88810ca19e00 R12: 0000000000000008 R13: ffffffffff600000 R14: ffff88810c7c3000 R15: 0000000000000001 FS: 00007f368af30c80(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600000 CR3: 000000010c822000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 25 40 6f 01 00 and $0x16f40,%eax 5: 83 80 f8 14 00 00 01 addl $0x1,0x14f8(%rax) c: 49 83 fc 07 cmp $0x7,%r12 10: 76 3f jbe 0x51 12: 31 c9 xor %ecx,%ecx 14: eb 12 jmp 0x28 16: 49 83 ec 08 sub $0x8,%r12 1a: 48 83 c5 08 add $0x8,%rbp 1e: 48 83 c3 08 add $0x8,%rbx 22: 49 83 fc 07 cmp $0x7,%r12 26: 76 29 jbe 0x51 28: 89 c8 mov %ecx,%eax * 2a: 48 8b 13 mov (%rbx),%rdx <-- trapping instruction 2d: 85 c0 test %eax,%eax 2f: 48 89 55 00 mov %rdx,0x0(%rbp) 33: 74 e1 je 0x16 35: 65 48 8b 04 25 40 6f mov %gs:0x16f40,%rax 3c: 01 00 3e: 83 .byte 0x83 3f: a8 .byte 0xa8