ci starts bisection 2025-02-08 20:10:13.060041741 +0000 UTC m=+45815.630552146 bisecting cause commit starting from 7ee983c850b40043ac4751836fbd9a2b4d0c5937 building syzkaller on ef44b750e8fab8d6d5cb84920680581b13e0d470 ensuring issue is reproducible on original commit 7ee983c850b40043ac4751836fbd9a2b4d0c5937 testing commit 7ee983c850b40043ac4751836fbd9a2b4d0c5937 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d28df24ace132a6786180a409f62ade5f581baf349a0d5e6e8587a812b21e497 all runs: crashed: WARNING in __ext4_iget representative crash: WARNING in __ext4_iget, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 7ee983c850b40043ac4751836fbd9a2b4d0c5937 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0b86e1302aa9c00a4262cc0309642891d89e96719b4f8a4cd75ba6fb2ce1b53c all runs: crashed: WARNING in __ext4_iget representative crash: WARNING in __ext4_iget, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed kconfig minimization: base=4065 full=8264 leaves diff=2114 split chunks (needed=false): <2114> split chunk #0 of len 2114 into 5 parts testing without sub-chunk 1/5 disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 7ee983c850b40043ac4751836fbd9a2b4d0c5937 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 519ee107ff6ab18043654b7e92abebaf19a34e4e1c48467c2abf3f8a361eb36d all runs: crashed: WARNING in __ext4_iget representative crash: WARNING in __ext4_iget, types: [WARNING] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed testing commit 7ee983c850b40043ac4751836fbd9a2b4d0c5937 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 failed building 7ee983c850b40043ac4751836fbd9a2b4d0c5937: 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], they are not needed testing commit 7ee983c850b40043ac4751836fbd9a2b4d0c5937 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fcb0640fba881ae0cf883c5f9ecfd6654073ce5c6cd7cc244c0aa06763d776d0 all runs: crashed: WARNING in __ext4_iget representative crash: WARNING in __ext4_iget, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed testing commit 7ee983c850b40043ac4751836fbd9a2b4d0c5937 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 33211780c8cf5701cec4cf501438a7f8b845808e9b5b9950085e3da509221f05 all runs: crashed: WARNING in __ext4_iget representative crash: WARNING in __ext4_iget, types: [WARNING] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 7ee983c850b40043ac4751836fbd9a2b4d0c5937 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 40d9e209ebea60f8a0120908d4a656dffcea53b33ca4b3b6169ace413455e327 all runs: crashed: WARNING in __ext4_iget representative crash: WARNING in __ext4_iget, types: [WARNING] the chunk can be dropped minimized to 423 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI CHARGER_BQ24190 CMA COMMON_CLK DAX DLM DRM DRM_BRIDGE DRM_GUD DRM_I915 DRM_I915_CAPTURE_ERROR DRM_I915_COMPRESS_ERROR 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 EFS_FS ENCRYPTED_KEYS EQUALIZER EROFS_FS 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 GENDWARFKSYMS 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 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 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 MODVERSIONS 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 KASAN LOCKDEP ATOMIC_SLEEP], they are not needed picked [v6.13 v6.12 v6.11 v6.9 v6.7 v6.5 v6.3 v6.1 v5.18 v5.15 v5.12 v5.9 v5.6 v5.3 v5.0 v4.19] out of 36 release tags testing release v6.13 testing commit ffd294d346d185b70e28b1a28abe367bbfe53c04 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 60cdfb365bcfd85e911900b00f1c4ecdaf9de9d50348c9092668300733f0d882 all runs: OK false negative chance: 0.000 # git bisect start 7ee983c850b40043ac4751836fbd9a2b4d0c5937 ffd294d346d185b70e28b1a28abe367bbfe53c04 Bisecting: 5086 revisions left to test after this (roughly 12 steps) [b477ff98d903618a1ab8247861f2ea6e70c0f0f8] Merge tag 'xfs-merge-6.14' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux testing commit b477ff98d903618a1ab8247861f2ea6e70c0f0f8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2d3a26fdae749cd5271edb53847deb123f82f05f660547c507b8a4880ae67e70 all runs: OK false negative chance: 0.000 # git bisect good b477ff98d903618a1ab8247861f2ea6e70c0f0f8 Bisecting: 2538 revisions left to test after this (roughly 11 steps) [40648d246fa4307ef11d185933cb0d79fc9ff46c] Merge tag 'trace-tools-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace testing commit 40648d246fa4307ef11d185933cb0d79fc9ff46c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 561fb5a80dd2ee3edee8182930ca2e39b69f3e02b495e008a8c418fee4acf77e all runs: OK false negative chance: 0.000 # git bisect good 40648d246fa4307ef11d185933cb0d79fc9ff46c Bisecting: 1260 revisions left to test after this (roughly 10 steps) [7d6e5b525827c69b6d24716fa3e407441edfcf09] Merge tag 'drm-next-2025-01-27' of https://gitlab.freedesktop.org/drm/kernel testing commit 7d6e5b525827c69b6d24716fa3e407441edfcf09 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3834749a6826b769db7506d3c4fa43807e94b8c29d8af8353efa3cd55fe5a3f0 all runs: OK false negative chance: 0.000 # git bisect good 7d6e5b525827c69b6d24716fa3e407441edfcf09 Bisecting: 629 revisions left to test after this (roughly 9 steps) [b4b0881156fb8209bf5ef6cb63211bb0ad6e1a6b] Merge tag 'docs-6.14-2' of git://git.lwn.net/linux testing commit b4b0881156fb8209bf5ef6cb63211bb0ad6e1a6b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e9d6bf69b4b942c1bc48c5486c52d3b2dab54776fdf2f4cc8e760ff160264f13 all runs: OK false negative chance: 0.000 # git bisect good b4b0881156fb8209bf5ef6cb63211bb0ad6e1a6b Bisecting: 310 revisions left to test after this (roughly 8 steps) [fd8c09ad0d87783b9b6a27900d66293be45b7bad] Merge tag 'kbuild-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild testing commit fd8c09ad0d87783b9b6a27900d66293be45b7bad gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8496ab454a9ce5946ebf6455f9948f350a71d2b6246ce4dc511ec8305fa80192 all runs: OK false negative chance: 0.000 # git bisect good fd8c09ad0d87783b9b6a27900d66293be45b7bad Bisecting: 154 revisions left to test after this (roughly 7 steps) [d009de7d54281f5c23d7d82ec5e6e2d54609791a] Merge tag 'livepatching-for-6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching testing commit d009de7d54281f5c23d7d82ec5e6e2d54609791a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 694335a9bd74a2457aed7c43c9d368e9902a0fcc7d5edc9b910b60d5a427f7ec all runs: OK false negative chance: 0.000 # git bisect good d009de7d54281f5c23d7d82ec5e6e2d54609791a Bisecting: 74 revisions left to test after this (roughly 6 steps) [8c67da5bc11a79833d9fd464e82b1b271c67fc87] Merge tag 'vfs-6.14-rc2.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs testing commit 8c67da5bc11a79833d9fd464e82b1b271c67fc87 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8013ce16f4206a8fd608cfe34c44cd9f21177ae8f36eb7460d64d4d8543d371b all runs: crashed: WARNING in __ext4_iget representative crash: WARNING in __ext4_iget, types: [WARNING] # git bisect bad 8c67da5bc11a79833d9fd464e82b1b271c67fc87 Bisecting: 40 revisions left to test after this (roughly 5 steps) [2a64c96356c87aa8af826605943e5524bf45e24d] Revert "net: stmmac: Specify hardware capability value when FIFO size isn't specified" testing commit 2a64c96356c87aa8af826605943e5524bf45e24d gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5f7052dabd7f77a52975dbabf482da9d2fabbff78abe409d4cf202503e5a0790 all runs: OK false negative chance: 0.000 # git bisect good 2a64c96356c87aa8af826605943e5524bf45e24d Bisecting: 22 revisions left to test after this (roughly 4 steps) [1b3291f00013c86a9bb349d6158a9a7a4f0334fe] MAINTAINERS: Remove myself testing commit 1b3291f00013c86a9bb349d6158a9a7a4f0334fe gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5230c3fbfa8823daecd29dbf0fb7d52e6eaa310ebc4f4d9e6c9d8e8baf289288 all runs: OK false negative chance: 0.000 # git bisect good 1b3291f00013c86a9bb349d6158a9a7a4f0334fe Bisecting: 11 revisions left to test after this (roughly 4 steps) [2a42754b3104d78a2bc7a2ad8844427411c76ca6] fsnotify: disable notification by default for all pseudo files testing commit 2a42754b3104d78a2bc7a2ad8844427411c76ca6 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a80fc0415a921235e60e4cf9f7a4316374f9b070d7fbb0e41a6921206e4f4fc8 all runs: OK false negative chance: 0.000 # git bisect good 2a42754b3104d78a2bc7a2ad8844427411c76ca6 Bisecting: 5 revisions left to test after this (roughly 3 steps) [4be214c26936813b636eed2fac906f585ddbf0f9] bcachefs: bch2_bkey_sectors_need_rebalance() now only depends on bch_extent_rebalance testing commit 4be214c26936813b636eed2fac906f585ddbf0f9 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b56e20a343e7f1bc68509a60bd3b21edbb1070aa6a486cc84e7c521d3e6198fc all runs: OK false negative chance: 0.000 # git bisect good 4be214c26936813b636eed2fac906f585ddbf0f9 Bisecting: 2 revisions left to test after this (roughly 2 steps) [091ee63e36e8289f9067f659a48d497911e49d6f] pidfs: improve ioctl handling testing commit 091ee63e36e8289f9067f659a48d497911e49d6f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d6a6e4d29bef72d35bde35fde9e0f71778d50272e013e46ca6210572e8c85e90 all runs: OK false negative chance: 0.000 # git bisect good 091ee63e36e8289f9067f659a48d497911e49d6f Bisecting: 1 revision left to test after this (roughly 1 step) [37d11cfc63604b3886308e2111d845d148ced8bc] vfs: sanity check the length passed to inode_set_cached_link() testing commit 37d11cfc63604b3886308e2111d845d148ced8bc gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2d22f0eee0d39ef73b401a6cf9478242535cb84acb43f4c28f0ab36b18a24985 all runs: crashed: WARNING in __ext4_iget representative crash: WARNING in __ext4_iget, types: [WARNING] # git bisect bad 37d11cfc63604b3886308e2111d845d148ced8bc 37d11cfc63604b3886308e2111d845d148ced8bc is the first bad commit commit 37d11cfc63604b3886308e2111d845d148ced8bc Author: Mateusz Guzik Date: Tue Feb 4 22:32:07 2025 +0100 vfs: sanity check the length passed to inode_set_cached_link() This costs a strlen() call when instatianating a symlink. Preferably it would be hidden behind VFS_WARN_ON (or compatible), but there is no such facility at the moment. With the facility in place the call can be patched out in production kernels. In the meantime, since the cost is being paid unconditionally, use the result to a fixup the bad caller. This is not expected to persist in the long run (tm). Sample splat: bad length passed for symlink [/tmp/syz-imagegen43743633/file0/file0] (got 131109, expected 37) [rest of WARN blurp goes here] Signed-off-by: Mateusz Guzik Link: https://lore.kernel.org/r/20250204213207.337980-1-mjguzik@gmail.com Signed-off-by: Christian Brauner include/linux/fs.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) accumulated error probability: 0.00 culprit signature: 2d22f0eee0d39ef73b401a6cf9478242535cb84acb43f4c28f0ab36b18a24985 parent signature: d6a6e4d29bef72d35bde35fde9e0f71778d50272e013e46ca6210572e8c85e90 revisions tested: 20, total time: 10h15m55.220013578s (build: 7h6m22.357054928s, test: 2h37m32.987522355s) first bad commit: 37d11cfc63604b3886308e2111d845d148ced8bc vfs: sanity check the length passed to inode_set_cached_link() recipients (to): ["brauner@kernel.org" "linux-kernel@vger.kernel.org" "mjguzik@gmail.com"] recipients (cc): ["brauner@kernel.org" "jack@suse.cz" "linux-fsdevel@vger.kernel.org" "viro@zeniv.linux.org.uk"] crash: WARNING in __ext4_iget EXT4-fs error (device loop3): htree_dirblock_to_tree:1109: inode #2: block 13: comm syz-executor: bad entry in directory: rec_len % 4 != 0 - offset=108, inode=4294901777, rec_len=65535, size=1024 fake=0 ------------[ cut here ]------------ bad length passed for symlink [/tmp/syz-imagegen2884317625/] (got 39, expected 29) WARNING: CPU: 1 PID: 3127 at ./include/linux/fs.h:802 inode_set_cached_link include/linux/fs.h:802 [inline] WARNING: CPU: 1 PID: 3127 at ./include/linux/fs.h:802 __ext4_iget+0xfd2/0xfe0 fs/ext4/inode.c:5012 Modules linked in: CPU: 1 UID: 0 PID: 3127 Comm: syz-executor Not tainted 6.14.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:inode_set_cached_link include/linux/fs.h:802 [inline] RIP: 0010:__ext4_iget+0xfd2/0xfe0 fs/ext4/inode.c:5012 Code: b7 82 a0 05 00 00 e9 09 fb ff ff 4c 89 55 98 c6 05 6e 21 3b 02 01 90 8b 55 a0 4c 89 e6 48 c7 c7 d0 86 15 83 e8 8f 51 c0 ff 90 <0f> 0b 90 90 4c 8b 55 98 e9 65 ff ff ff 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90001adbb00 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000002 RSI: 00000000ffffdfff RDI: 00000000ffffffff RBP: ffffc90001adbba0 R08: 0000000000000000 R09: 0000000000000003 R10: ffffc90001adb998 R11: ffffffff837dfe88 R12: ffff88817dc90968 R13: 000000000000001d R14: ffffffff82a43740 R15: 0000000000000715 FS: 0000555587839500(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555587864528 CR3: 00000001103bc000 CR4: 0000000000350ef0 Call Trace: ext4_lookup+0xf9/0x250 fs/ext4/namei.c:1813 __lookup_slow+0xfa/0x1c0 fs/namei.c:1793 lookup_slow fs/namei.c:1810 [inline] walk_component+0xf7/0x170 fs/namei.c:2114 lookup_last fs/namei.c:2612 [inline] path_lookupat+0x62/0x1a0 fs/namei.c:2636 filename_lookup+0xf4/0x200 fs/namei.c:2665 user_path_at+0x32/0x50 fs/namei.c:3072 ksys_umount fs/namespace.c:2071 [inline] __do_sys_umount fs/namespace.c:2079 [inline] __se_sys_umount fs/namespace.c:2077 [inline] __x64_sys_umount+0x4e/0x90 fs/namespace.c:2077 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xb4/0x210 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff186d8e117 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007fffb68bb058 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff186d8e117 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffb68bb110 RBP: 00007fffb68bb110 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fffb68bc200 R13: 00007ff186e0e08c R14: 000000000000f8fe R15: 00007fffb68be3c0