ci starts bisection 2025-01-25 16:53:09.775521387 +0000 UTC m=+66987.695110890 bisecting fixing commit since f92f4749861b06fed908d336b4dee1326003291b building syzkaller on ff949d2512c5ac33d0407d26d80f1df77b2de0e7 ensuring issue is reproducible on original commit f92f4749861b06fed908d336b4dee1326003291b testing commit f92f4749861b06fed908d336b4dee1326003291b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a6b15bfc567607605e8f485c72379c4b6305194b31f03ae087e2622dbf0aa2e8 all runs: crashed: general protection fault in exfat_get_dentry_cached representative crash: general protection fault in exfat_get_dentry_cached, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit f92f4749861b06fed908d336b4dee1326003291b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ec45a8c512ffbfc046e8f766f9047e65dd01a0c1d1047c5602bfd4f9d95a41ff all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in exfat_init_ext_entry representative crash: BUG: unable to handle kernel NULL pointer dereference in exfat_init_ext_entry, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed kconfig minimization: base=4047 full=8243 leaves diff=2123 split chunks (needed=false): <2123> split chunk #0 of len 2123 into 5 parts testing without sub-chunk 1/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit f92f4749861b06fed908d336b4dee1326003291b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 740ad5d37eabe2990c2e7b5260d5bcfa9e70899a999e8b3f0d4e00d4c3140585 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in exfat_init_ext_entry representative crash: BUG: unable to handle kernel NULL pointer dereference in exfat_init_ext_entry, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit f92f4749861b06fed908d336b4dee1326003291b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 failed building f92f4749861b06fed908d336b4dee1326003291b: 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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit f92f4749861b06fed908d336b4dee1326003291b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1d303a487879050d13e166acb820a0428803b6bf9cd57de41c51eb885c2c22d5 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in exfat_init_ext_entry representative crash: BUG: unable to handle kernel NULL pointer dereference in exfat_init_ext_entry, 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 f92f4749861b06fed908d336b4dee1326003291b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9689fd2778563ecef335ff75217b18c0600cb321f7e7bcdc45f834e28746a363 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in exfat_init_ext_entry representative crash: BUG: unable to handle kernel NULL pointer dereference in exfat_init_ext_entry, 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 f92f4749861b06fed908d336b4dee1326003291b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 72fd0d6f92bab1fb743c8e3fa56dffffad420bf71bf43adb26c20ca2ecec938b all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in exfat_init_ext_entry representative crash: BUG: unable to handle kernel NULL pointer dereference in exfat_init_ext_entry, types: [UNKNOWN] 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_I915 DRM_I915_USERPTR DRM_KMS_HELPER DRM_MIPI_DSI 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_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 [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing current HEAD b46c89c08f4146e7987fc355941a93b12e2c03ef testing commit b46c89c08f4146e7987fc355941a93b12e2c03ef gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a755519cfc31f7209664b72ed6d7de3e1b03a4ec4ea7be3a35393b460492d3b0 all runs: OK false negative chance: 0.000 # git bisect start b46c89c08f4146e7987fc355941a93b12e2c03ef f92f4749861b06fed908d336b4dee1326003291b Bisecting: 4550 revisions left to test after this (roughly 12 steps) [5f537664e705b0bf8b7e329861f20128534f6a83] cachestat: fix page cache statistics permission checking determine whether the revision contains the guilty commit revision f92f4749861b06fed908d336b4dee1326003291b crashed and is reachable testing commit 5f537664e705b0bf8b7e329861f20128534f6a83 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a1b79a36720db2b747206405adde1aa8a9e1aecedbfc20292ae4fa21586604d9 all runs: OK false negative chance: 0.000 # git bisect bad 5f537664e705b0bf8b7e329861f20128534f6a83 Bisecting: 2022 revisions left to test after this (roughly 11 steps) [24c61d553302ee49e9c21dd251275ba8c36dcfe4] Merge tag 'drm-msm-next-2025-01-07' of gitlab.freedesktop.org:drm/msm into drm-next determine whether the revision contains the guilty commit revision f92f4749861b06fed908d336b4dee1326003291b crashed and is reachable testing commit 24c61d553302ee49e9c21dd251275ba8c36dcfe4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eaa32cfaa189fdc783da2b2b1209e5ede7b4f93a94c4cff6936c97f9fbda6b77 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in exfat_init_ext_entry representative crash: BUG: unable to handle kernel NULL pointer dereference in exfat_init_ext_entry, types: [UNKNOWN] # git bisect good 24c61d553302ee49e9c21dd251275ba8c36dcfe4 Bisecting: 1111 revisions left to test after this (roughly 10 steps) [5d8a4bd6b251216acc532801f6a5258903aead42] Merge tag 'pstore-v6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux determine whether the revision contains the guilty commit revision f92f4749861b06fed908d336b4dee1326003291b crashed and is reachable testing commit 5d8a4bd6b251216acc532801f6a5258903aead42 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d15d47ef7eb73a1c5e0375ac5fa54d09a74f20fda9dab95ba1f7b900a13f1b1f all runs: OK false negative chance: 0.000 # git bisect bad 5d8a4bd6b251216acc532801f6a5258903aead42 Bisecting: 455 revisions left to test after this (roughly 9 steps) [e426286cfa6f85e51006f6151b309a395ada6540] btrfs: configure read policy via module parameter determine whether the revision contains the guilty commit revision f92f4749861b06fed908d336b4dee1326003291b crashed and is reachable testing commit e426286cfa6f85e51006f6151b309a395ada6540 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6e0ab81007622c8a8597d1243667ddd2113433b7ebcc7eab0c37328d90a5ef56 all runs: OK false negative chance: 0.000 # git bisect bad e426286cfa6f85e51006f6151b309a395ada6540 Bisecting: 229 revisions left to test after this (roughly 8 steps) [58624e4bc876198a5dc41be1d7dd39e7c944b9c6] Merge tag 'cgroup-for-6.13-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup determine whether the revision contains the guilty commit revision f92f4749861b06fed908d336b4dee1326003291b crashed and is reachable testing commit 58624e4bc876198a5dc41be1d7dd39e7c944b9c6 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0ddd928cbdc47a9f0ceaafb0e564d746d3c739e9a238e9970fb5c1a268b02fbe all runs: OK false negative chance: 0.000 # git bisect bad 58624e4bc876198a5dc41be1d7dd39e7c944b9c6 Bisecting: 99 revisions left to test after this (roughly 7 steps) [c77cd47cee041bc1664b8e5fcd23036e5aab8e2a] Merge tag 'net-6.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net determine whether the revision contains the guilty commit revision f92f4749861b06fed908d336b4dee1326003291b crashed and is reachable testing commit c77cd47cee041bc1664b8e5fcd23036e5aab8e2a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1bc5e39174cf4fc020cdc5afbb20171ea12e8708a3522cba45e32e7d3440517f all runs: OK false negative chance: 0.000 # git bisect bad c77cd47cee041bc1664b8e5fcd23036e5aab8e2a Bisecting: 62 revisions left to test after this (roughly 6 steps) [2664bc9c7d59086e27415b66245f7d83b6c36b40] Merge branch 'net-sysctl-avoid-using-current-nsproxy' determine whether the revision contains the guilty commit revision f92f4749861b06fed908d336b4dee1326003291b crashed and is reachable testing commit 2664bc9c7d59086e27415b66245f7d83b6c36b40 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f8bed7ccb362d5a66b94c692b9e4a099e172450ef960c7dac4010c3f3b3a5535 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in exfat_init_ext_entry representative crash: BUG: unable to handle kernel NULL pointer dereference in exfat_init_ext_entry, types: [UNKNOWN] # git bisect good 2664bc9c7d59086e27415b66245f7d83b6c36b40 Bisecting: 35 revisions left to test after this (roughly 5 steps) [368fcc5d3f8bf645a630a44e65f5eb008aba7082] Merge patch series "Fix encoding overlayfs fid for fanotify delete events" determine whether the revision contains the guilty commit checking the merge base 40384c840ea1944d7c5a392e8975ed088ecf0b37 no existing result, test the revision testing commit 40384c840ea1944d7c5a392e8975ed088ecf0b37 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 116b29e02f3e3ede1c7d1e5042c333db58ea52a3edf14f42c9e20abb70153a00 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in exfat_init_ext_entry representative crash: BUG: unable to handle kernel NULL pointer dereference in exfat_init_ext_entry, types: [UNKNOWN] testing commit 368fcc5d3f8bf645a630a44e65f5eb008aba7082 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bdcb39817520d75065a629cb6222e8d3a5e583be446c6d3026dde7aefe98745c all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in exfat_init_ext_entry representative crash: BUG: unable to handle kernel NULL pointer dereference in exfat_init_ext_entry, types: [UNKNOWN] # git bisect good 368fcc5d3f8bf645a630a44e65f5eb008aba7082 Bisecting: 16 revisions left to test after this (roughly 4 steps) [0b7958fa05d562e514fd0abe2a4800042abf868b] Merge tag 'for-6.13/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm determine whether the revision contains the guilty commit revision 40384c840ea1944d7c5a392e8975ed088ecf0b37 crashed and is reachable testing commit 0b7958fa05d562e514fd0abe2a4800042abf868b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1c77b7193495322c720e3c2d9816023b1e53a6c7db8815dadef695e39931f03b all runs: OK false negative chance: 0.000 # git bisect bad 0b7958fa05d562e514fd0abe2a4800042abf868b Bisecting: 9 revisions left to test after this (roughly 3 steps) [fbfd64d25c7af3b8695201ebc85efe90be28c5a3] Merge tag 'vfs-6.13-rc7.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs determine whether the revision contains the guilty commit revision f92f4749861b06fed908d336b4dee1326003291b crashed and is reachable testing commit fbfd64d25c7af3b8695201ebc85efe90be28c5a3 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2fb9e202ab6dcfab99e21c0d99939f4f5a7562bdefe949479ef00242a6cbd71e all runs: OK false negative chance: 0.000 # git bisect bad fbfd64d25c7af3b8695201ebc85efe90be28c5a3 Bisecting: 4 revisions left to test after this (roughly 2 steps) [a5324b3a488d883aa2d42f72260054e87d0940a0] exfat: fix the infinite loop in __exfat_free_cluster() determine whether the revision contains the guilty commit revision 40384c840ea1944d7c5a392e8975ed088ecf0b37 crashed and is reachable testing commit a5324b3a488d883aa2d42f72260054e87d0940a0 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2f38a40d5a35dbd7b2aad3dc593f3ba841ea8e3f3602bb98a051f440456df12a all runs: OK false negative chance: 0.000 # git bisect bad a5324b3a488d883aa2d42f72260054e87d0940a0 Bisecting: 1 revision left to test after this (roughly 1 step) [fee873761bd978d077d8c55334b4966ac4cb7b59] exfat: fix the infinite loop in exfat_readdir() determine whether the revision contains the guilty commit revision 40384c840ea1944d7c5a392e8975ed088ecf0b37 crashed and is reachable testing commit fee873761bd978d077d8c55334b4966ac4cb7b59 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c30319316bfda02640c84572777a0af1ffa81f8b675041ca82d7c25d0445a928 all runs: OK false negative chance: 0.000 # git bisect bad fee873761bd978d077d8c55334b4966ac4cb7b59 Bisecting: 0 revisions left to test after this (roughly 0 steps) [70465acbb0ce1bb69447acf32f136c8153cda0de] exfat: fix exfat_find_empty_entry() not returning error on failure determine whether the revision contains the guilty commit revision 40384c840ea1944d7c5a392e8975ed088ecf0b37 crashed and is reachable testing commit 70465acbb0ce1bb69447acf32f136c8153cda0de gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 09ebc505f594b323349c1c18db991977342dbb25d9fa78f71f76cbc2e3c94755 all runs: OK false negative chance: 0.000 # git bisect bad 70465acbb0ce1bb69447acf32f136c8153cda0de 70465acbb0ce1bb69447acf32f136c8153cda0de is the first bad commit commit 70465acbb0ce1bb69447acf32f136c8153cda0de Author: Yuezhang Mo Date: Mon Dec 2 09:53:17 2024 +0800 exfat: fix exfat_find_empty_entry() not returning error on failure On failure, "dentry" is the error code. If the error code indicates that there is no space, a new cluster may need to be allocated; for other errors, it should be returned directly. Only on success, "dentry" is the index of the directory entry, and it needs to be converted into the directory entry index within the cluster where it is located. Fixes: 8a3f5711ad74 ("exfat: reduce FAT chain traversal") Reported-by: syzbot+6f6c9397e0078ef60bce@syzkaller.appspotmail.com Tested-by: syzbot+6f6c9397e0078ef60bce@syzkaller.appspotmail.com Signed-off-by: Yuezhang Mo Reviewed-by: Sungjong Seo Signed-off-by: Namjae Jeon fs/exfat/namei.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) accumulated error probability: 0.00 parent commit feffde684ac29a3b7aec82d2df850fbdbdee55e4 wasn't tested testing commit feffde684ac29a3b7aec82d2df850fbdbdee55e4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f1eb3762df5bd7becb0bd37160e0c164d3165ea68d73cad041ad414e90ac61d0 culprit signature: 09ebc505f594b323349c1c18db991977342dbb25d9fa78f71f76cbc2e3c94755 parent signature: f1eb3762df5bd7becb0bd37160e0c164d3165ea68d73cad041ad414e90ac61d0 revisions tested: 21, total time: 5h1m41.908916027s (build: 2h22m52.81431993s, test: 2h22m4.75568541s) first good commit: 70465acbb0ce1bb69447acf32f136c8153cda0de exfat: fix exfat_find_empty_entry() not returning error on failure recipients (to): ["linkinjeon@kernel.org" "sj1557.seo@samsung.com" "syzbot+6f6c9397e0078ef60bce@syzkaller.appspotmail.com" "yuezhang.mo@sony.com"] recipients (cc): []