ci starts bisection 2024-11-29 00:47:02.806826174 +0000 UTC m=+108875.574624028 bisecting cause commit starting from 445d9f05fa149556422f7fdd52dacf487cc8e7be building syzkaller on 52b38cc1f0ef7be017dc51c45e16a1054254f95f ensuring issue is reproducible on original commit 445d9f05fa149556422f7fdd52dacf487cc8e7be testing commit 445d9f05fa149556422f7fdd52dacf487cc8e7be gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 35935b4dc96e2e1129c0b7ed56b112749c6604857d7af64e218ca801ebb02dd8 all runs: crashed: KASAN: null-ptr-deref Write in fuse_copy_do representative crash: KASAN: null-ptr-deref Write in fuse_copy_do, types: [KASAN] check whether we can drop unnecessary instrumentation disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 445d9f05fa149556422f7fdd52dacf487cc8e7be gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2faab82acb6ac7bf61aead9aa8cd8aaabb3f751c3fd4dba5dda47072dae11119 all runs: crashed: KASAN: null-ptr-deref Write in fuse_copy_do representative crash: KASAN: null-ptr-deref Write in fuse_copy_do, types: [KASAN] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=4046 full=8233 leaves diff=2122 split chunks (needed=false): <2122> split chunk #0 of len 2122 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 445d9f05fa149556422f7fdd52dacf487cc8e7be gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f22b3c03c686b0a0350c6089f79aae8fad85a2ed8688183b4b71a18a873a82bc all runs: crashed: KASAN: null-ptr-deref Write in fuse_copy_do representative crash: KASAN: null-ptr-deref Write in fuse_copy_do, types: [KASAN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 445d9f05fa149556422f7fdd52dacf487cc8e7be gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 failed building 445d9f05fa149556422f7fdd52dacf487cc8e7be: drivers/gpu/drm/bridge/aux-bridge.c:116: undefined reference to `devm_drm_of_get_bridge' testing without sub-chunk 3/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 445d9f05fa149556422f7fdd52dacf487cc8e7be gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6099cee88e285970c85e2ec7105907a56f93c42bf31df07b8a965d5f347c4acf all runs: crashed: KASAN: null-ptr-deref Write in fuse_copy_do representative crash: KASAN: null-ptr-deref Write in fuse_copy_do, types: [KASAN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 445d9f05fa149556422f7fdd52dacf487cc8e7be gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0cbe2b63e52697becd39855bb81afa49997512d5b2b88819885614b681098401 all runs: crashed: KASAN: null-ptr-deref Write in fuse_copy_do representative crash: KASAN: null-ptr-deref Write in fuse_copy_do, types: [KASAN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed testing commit 445d9f05fa149556422f7fdd52dacf487cc8e7be gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5ec645501a8d908fa46f02fb4452fe25e9634d3c08ac28b984828084e6017186 all runs: crashed: KASAN: null-ptr-deref Write in fuse_copy_do representative crash: KASAN: null-ptr-deref Write in fuse_copy_do, types: [KASAN] the chunk can be dropped minimized to 425 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI CHARGER_BQ24190 CMA COMMON_CLK DAX DLM DRM DRM_BRIDGE 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_VIRTIO_GPU_KMS DRM_VKMS DRM_VMWGFX 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_BACKED_BY_FILE 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_CORE FB_DEFERRED_IO FB_DEVICE FB_IOMEM_FOPS FB_IOMEM_HELPERS FB_NOTIFY FB_SYSMEM_FOPS FB_SYSMEM_HELPERS FB_SYSMEM_HELPERS_DEFERRED FB_SYS_COPYAREA FB_SYS_FILLRECT 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 FS_DAX FS_DAX_PMD FS_ENCRYPTION FS_ENCRYPTION_ALGS FS_STACK 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_LJCA GPIO_VIPERBOARD GREENASIA_FF GREYBUS GREYBUS_BRIDGED_PHY GREYBUS_ES2 GREYBUS_HID GREYBUS_USB GROUP_SCHED_WEIGHT GTP GUEST_PERF_EVENTS GVE 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_IRQCHIP HAVE_KVM_IRQ_BYPASS HAVE_KVM_IRQ_ROUTING HAVE_KVM_MSI HAVE_KVM_NO_POLL HAVE_KVM_PFNCACHE HAVE_KVM_PM_NOTIFIER HAVE_KVM_READONLY_MEM 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_ELAN HID_ELECOM HID_ELO HID_EMS_FF HID_EVISION HID_FT260 HID_GEMBIRD HID_GFRM HID_GLORIOUS HID_GOOGLE_STADIA_FF 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_MCP2200 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_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_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_HID_ACPI I2C_HID_CORE I2C_HID_OF I2C_LJCA 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_ISHTP_ECLITE INTEL_ISH_FIRMWARE_DOWNLOADER INTEL_ISH_HID INTEL_SOC_PMIC_CHTWC INTERVAL_TREE_SPAN_ITER IOMMUFD IOMMUFD_DRIVER IOMMUFD_DRIVER_CORE IOMMUFD_TEST 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_NF_SECURITY IP_NF_TARGET_ECN IP_NF_TARGET_NETMAP IP_NF_TARGET_REDIRECT IP_NF_TARGET_SYNPROXY IP_NF_TARGET_TTL IP_ROUTE_CLASSID IP_SCTP IP_SET IP_SET_BITMAP_IP IP_SET_BITMAP_IPMAC IP_SET_BITMAP_PORT IP_SET_HASH_IP IP_SET_HASH_IPMAC IP_SET_HASH_IPMARK IP_SET_HASH_IPPORT IP_SET_HASH_IPPORTIP IP_SET_HASH_IPPORTNET IP_SET_HASH_MAC IP_SET_HASH_NET IP_SET_HASH_NETIFACE IP_SET_HASH_NETNET IP_SET_HASH_NETPORT IP_SET_HASH_NETPORTNET IP_SET_LIST_SET IP_VS IP_VS_DH IP_VS_FO IP_VS_FTP IP_VS_IPV6 IP_VS_LBLC IP_VS_LBLCR IP_VS_PROTO_TCP IRQ_TIME_ACCOUNTING LAPB LCD_CLASS_DEVICE MAC802154 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_COMPAT NFT_COMPAT_ARP NFT_FWD_NETDEV NF_TABLES NF_TABLES_ARP NF_TABLES_NETDEV RADIO_ADAPTERS RADIO_SI4713 RAS RC_CORE REGULATOR RFKILL SND SOUND STAGING TRANSPARENT_HUGEPAGE TYPEC TYPEC_MUX_PI3USB30532 USB_LJCA USB_ROLES_INTEL_XHCI USB_ROLE_SWITCH VIDEO_DEV VIRTIO_FS WAN ZONE_DEVICE] disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed picked [v6.12 v6.11 v6.10 v6.8 v6.6 v6.4 v6.2 v6.0 v5.17 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 35 release tags testing release v6.12 testing commit adc218676eef25575469234709c2d87185ca223a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8e0f4c68345f372a27255f08393796886264c868a6f9483326838fbbb2d802c4 all runs: OK false negative chance: 0.000 # git bisect start 445d9f05fa149556422f7fdd52dacf487cc8e7be adc218676eef25575469234709c2d87185ca223a Bisecting: 4253 revisions left to test after this (roughly 12 steps) [fcc79e1714e8c2b8e216dc3149812edd37884eef] Merge tag 'net-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next testing commit fcc79e1714e8c2b8e216dc3149812edd37884eef gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5cdfc3cf077308db3c0d0e1c20ebc07b5ce0cb7451cc65ff88fbc128bd420967 all runs: OK false negative chance: 0.000 # git bisect good fcc79e1714e8c2b8e216dc3149812edd37884eef Bisecting: 1984 revisions left to test after this (roughly 11 steps) [28eb75e178d389d325f1666e422bc13bbbb9804c] Merge tag 'drm-next-2024-11-21' of https://gitlab.freedesktop.org/drm/kernel testing commit 28eb75e178d389d325f1666e422bc13bbbb9804c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 43b9f5301ca69ea236ab947602eb6fc858da9a569903561daccbd856ec2951fc all runs: OK false negative chance: 0.000 # git bisect good 28eb75e178d389d325f1666e422bc13bbbb9804c Bisecting: 977 revisions left to test after this (roughly 10 steps) [42d9e8b7ccddee75989283cf7477305cfe3776ff] Merge tag 'powerpc-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux testing commit 42d9e8b7ccddee75989283cf7477305cfe3776ff gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2065ea6f181dca28e040f6331301920ca86be297ea0118940f4ae043cdb82cd5 all runs: OK false negative chance: 0.000 # git bisect good 42d9e8b7ccddee75989283cf7477305cfe3776ff Bisecting: 457 revisions left to test after this (roughly 9 steps) [f5f4745a7f057b58c9728ee4e2c5d6d79f382fe7] Merge tag 'mm-nonmm-stable-2024-11-24-02-05' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm testing commit f5f4745a7f057b58c9728ee4e2c5d6d79f382fe7 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a317b1243999b844151ff8b81f36158240ae0df22455596fc2572151d02c818f all runs: OK false negative chance: 0.000 # git bisect good f5f4745a7f057b58c9728ee4e2c5d6d79f382fe7 Bisecting: 186 revisions left to test after this (roughly 8 steps) [0637a68b9c6c1dfffcc1fca003cb7cd3257c3c03] Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi testing commit 0637a68b9c6c1dfffcc1fca003cb7cd3257c3c03 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cea8519d0c9e1c9c53e1c83c43ddc1f983ee0a7ed916b3c4d322c19effbd22b2 all runs: OK false negative chance: 0.000 # git bisect good 0637a68b9c6c1dfffcc1fca003cb7cd3257c3c03 Bisecting: 113 revisions left to test after this (roughly 7 steps) [fb527fc1f36e252cd1f62a26be4906949e7708ff] Merge tag 'fuse-update-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse testing commit fb527fc1f36e252cd1f62a26be4906949e7708ff gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cc607bdd8b07798c4e662463205f92fe536219f00b90089efb93480f22efa8b0 all runs: crashed: KASAN: null-ptr-deref Write in fuse_copy_do representative crash: KASAN: null-ptr-deref Write in fuse_copy_do, types: [KASAN] # git bisect bad fb527fc1f36e252cd1f62a26be4906949e7708ff Bisecting: 30 revisions left to test after this (roughly 5 steps) [ff2a7a064a69069554564f52b6a84fc8a8c7d688] Merge tag 'gfs2-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2 testing commit ff2a7a064a69069554564f52b6a84fc8a8c7d688 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ec77c4d4d6fd695ba881806dbfec091251ac54f6a2e5012d9d109eac839ae0c5 all runs: OK false negative chance: 0.000 # git bisect good ff2a7a064a69069554564f52b6a84fc8a8c7d688 Bisecting: 15 revisions left to test after this (roughly 4 steps) [8807f117be9d15088003e63bfaf0533355371ee8] fuse: convert fuse_notify_store to use folios testing commit 8807f117be9d15088003e63bfaf0533355371ee8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9686650c197a378948eb15a542733237d7ef9b991f2e18a2e054ba89da2d6bc1 all runs: OK false negative chance: 0.000 # git bisect good 8807f117be9d15088003e63bfaf0533355371ee8 Bisecting: 7 revisions left to test after this (roughly 3 steps) [ac1cf6e3bbe3dd371bd61a423437c1f67bba8b2a] fuse: convert ioctls to use folios testing commit ac1cf6e3bbe3dd371bd61a423437c1f67bba8b2a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: df0163974a3154291c7534a9a8d694c88691eb8c9c784ab52a60bf8f1c471034 all runs: OK false negative chance: 0.000 # git bisect good ac1cf6e3bbe3dd371bd61a423437c1f67bba8b2a Bisecting: 3 revisions left to test after this (roughly 2 steps) [3b97c3652d9128ab7f8c9b8adec6108611fdb153] fuse: convert direct io to use folios testing commit 3b97c3652d9128ab7f8c9b8adec6108611fdb153 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 41c24576bbac1f904673ac71113122a5dca57f7a69c89ea78dcd74b8e40504f8 all runs: crashed: KASAN: null-ptr-deref Write in fuse_copy_do representative crash: KASAN: null-ptr-deref Write in fuse_copy_do, types: [KASAN] # git bisect bad 3b97c3652d9128ab7f8c9b8adec6108611fdb153 Bisecting: 1 revision left to test after this (roughly 1 step) [cbe9c115b7441dd790540436118eee4626ec9979] fuse: convert writebacks to use folios testing commit cbe9c115b7441dd790540436118eee4626ec9979 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: de95e3b67ad9514b2094ae7653d2a3d0ef9d2794609eb63362d398a44ce69e6c all runs: OK false negative chance: 0.000 # git bisect good cbe9c115b7441dd790540436118eee4626ec9979 Bisecting: 0 revisions left to test after this (roughly 0 steps) [7fce207af5ec074a9a50e90eb866b17ca4a90f06] mm/writeback: add folio_mark_dirty_lock() testing commit 7fce207af5ec074a9a50e90eb866b17ca4a90f06 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7289f295988b786f7be77ac20f5d45571f554367b9c6469c3087213c6b4e2a79 all runs: OK false negative chance: 0.000 # git bisect good 7fce207af5ec074a9a50e90eb866b17ca4a90f06 3b97c3652d9128ab7f8c9b8adec6108611fdb153 is the first bad commit commit 3b97c3652d9128ab7f8c9b8adec6108611fdb153 Author: Joanne Koong Date: Thu Oct 24 10:18:08 2024 -0700 fuse: convert direct io to use folios Convert direct io requests to use folios instead of pages. No functional changes. Signed-off-by: Joanne Koong Reviewed-by: Josef Bacik Signed-off-by: Miklos Szeredi fs/fuse/file.c | 80 +++++++++++++++++++++++++------------------------------- fs/fuse/fuse_i.h | 22 ---------------- 2 files changed, 35 insertions(+), 67 deletions(-) accumulated error probability: 0.00 culprit signature: 41c24576bbac1f904673ac71113122a5dca57f7a69c89ea78dcd74b8e40504f8 parent signature: 7289f295988b786f7be77ac20f5d45571f554367b9c6469c3087213c6b4e2a79 revisions tested: 19, total time: 6h12m46.400942695s (build: 3h9m9.183914189s, test: 2h38m20.086409292s) first bad commit: 3b97c3652d9128ab7f8c9b8adec6108611fdb153 fuse: convert direct io to use folios recipients (to): ["joannelkoong@gmail.com" "josef@toxicpanda.com" "mszeredi@redhat.com"] recipients (cc): [] crash: KASAN: null-ptr-deref Write in fuse_copy_do ================================================================== BUG: KASAN: null-ptr-deref in fuse_copy_do+0x152/0x340 fs/fuse/dev.c:809 Write of size 5 at addr 0000000000000000 by task syz.3.15/3451 CPU: 0 UID: 0 PID: 3451 Comm: syz.3.15 Not tainted 6.12.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x5a/0x90 lib/dump_stack.c:120 kasan_report+0xd9/0x110 mm/kasan/report.c:601 check_region_inline mm/kasan/generic.c:183 [inline] kasan_check_range+0xef/0x1a0 mm/kasan/generic.c:189 __asan_memcpy+0x3c/0x60 mm/kasan/shadow.c:106 fuse_copy_do+0x152/0x340 fs/fuse/dev.c:809 fuse_copy_one fs/fuse/dev.c:1079 [inline] fuse_copy_args+0x17f/0x920 fs/fuse/dev.c:1097 copy_out_args fs/fuse/dev.c:1981 [inline] fuse_dev_do_write+0x172b/0x2ea0 fs/fuse/dev.c:2067 fuse_dev_write+0x123/0x1a0 fs/fuse/dev.c:2102 new_sync_write fs/read_write.c:590 [inline] vfs_write+0x5fb/0xf70 fs/read_write.c:683 ksys_write+0xf6/0x1d0 fs/read_write.c:736 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x6d/0x170 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc22b57f2bf Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 8d 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 8e 02 00 48 RSP: 002b:00007fc22c395fd0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000020008380 RCX: 00007fc22b57f2bf RDX: 0000000000000015 RSI: 0000000020000540 RDI: 0000000000000003 RBP: 0000000000000050 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000020000c40 R14: 00007fc22b745fa0 R15: 00007fff61543db8 ==================================================================