ci2 starts bisection 2025-05-11 20:40:27.670106526 +0000 UTC m=+195386.554218724 bisecting fixing commit since 0c935c049b5c196b83b968c72d348ae6fff83ea2 building syzkaller on d34966d146f584d390b49f213d1fccd59548dc6d ensuring issue is reproducible on original commit 0c935c049b5c196b83b968c72d348ae6fff83ea2 testing commit 0c935c049b5c196b83b968c72d348ae6fff83ea2 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6c7caff35ff8e22e838b60882808d48a79d7f37a449511c00ce9673f22da2660 all runs: crashed: possible deadlock in ocfs2_lock_global_qf representative crash: possible deadlock in ocfs2_lock_global_qf, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 0c935c049b5c196b83b968c72d348ae6fff83ea2 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 32bd25b5de5207e8eee3e21f8f8a423c5a86c1570eda9d7922cd522a3743fdbb all runs: crashed: possible deadlock in ocfs2_lock_global_qf representative crash: possible deadlock in ocfs2_lock_global_qf, types: [LOCKDEP] the bug reproduces without the instrumentation disabling configs for [BUG KASAN ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed kconfig minimization: base=3707 full=7305 leaves diff=2040 split chunks (needed=false): <2040> split chunk #0 of len 2040 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 0c935c049b5c196b83b968c72d348ae6fff83ea2 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1b03beed0a0f47757935409e8ba349a171c97476af8d8cb6e96d960c51c629ba all runs: crashed: possible deadlock in ocfs2_lock_global_qf representative crash: possible deadlock in ocfs2_lock_global_qf, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [KASAN ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 0c935c049b5c196b83b968c72d348ae6fff83ea2 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 776c511e5fbcf785175732dd8a7c99d761582f01ae4ba33a1bea8a0f9cf46b69 all runs: crashed: possible deadlock in ocfs2_lock_global_qf representative crash: possible deadlock in ocfs2_lock_global_qf, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 0c935c049b5c196b83b968c72d348ae6fff83ea2 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0fdb54363ca1608008182ffa8fd60af98476a9040232bfa4f56d90b2c15290b6 all runs: crashed: possible deadlock in ocfs2_lock_global_qf representative crash: possible deadlock in ocfs2_lock_global_qf, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 0c935c049b5c196b83b968c72d348ae6fff83ea2 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 25f1dad1673eb4b55e5a37a070f8ceba697895bdd8c4f6c1f5e94b6b233c1e3b all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 0c935c049b5c196b83b968c72d348ae6fff83ea2 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cabfa5b5d3650650a52f9d1c38f170e507422271c2ac00a87352dc4651aa053b all runs: crashed: possible deadlock in ocfs2_lock_global_qf representative crash: possible deadlock in ocfs2_lock_global_qf, types: [LOCKDEP] the chunk can be dropped minimized to 408 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ASYMMETRIC_TPM_KEY_SUBTYPE ATM AX25 BXT_WC_PMIC_OPREGION CFG80211 CMA DAX DLM DVB_CORE ENCRYPTED_KEYS EXTCON GENEVE GPIOLIB HAMRADIO HID_PLAYSTATION HID_SENSOR_HUB HID_SMARTJOYPLUS HID_THRUSTMASTER IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN INTEL_SCU_IPC INTEL_SOC_PMIC_BXTWC IP_SCTP L2TP LIBCRC32C LIBNVDIMM MEDIA_COMMON_OPTIONS MEDIA_DIGITAL_TV_SUPPORT MEDIA_PLATFORM_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_INTEL_PMC_BXT MFD_MT6360 MFD_RETU MMC MTD MTD_UBI NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 NLS_CODEPAGE_865 NLS_CODEPAGE_866 NLS_CODEPAGE_869 NLS_CODEPAGE_874 NLS_CODEPAGE_932 NLS_CODEPAGE_936 NLS_CODEPAGE_949 NLS_CODEPAGE_950 NLS_ISO8859_13 NLS_ISO8859_14 NLS_ISO8859_15 NLS_ISO8859_2 NLS_ISO8859_3 NLS_ISO8859_4 NLS_ISO8859_5 NLS_ISO8859_6 NLS_ISO8859_7 NLS_ISO8859_8 NLS_ISO8859_9 NLS_KOI8_R NLS_KOI8_U NLS_MAC_CELTIC NLS_MAC_CENTEURO NLS_MAC_CROATIAN NLS_MAC_CYRILLIC NLS_MAC_GAELIC NLS_MAC_GREEK NLS_MAC_ICELAND NLS_MAC_INUIT NLS_MAC_ROMAN NLS_MAC_ROMANIAN NLS_MAC_TURKISH NOP_USB_XCEIV NOZOMI NTFS3_FS NTFS3_FS_POSIX_ACL NTFS3_LZX_XPRESS NTFS_FS NTFS_RW NULL_TTY NUMA_BALANCING NUMA_BALANCING_DEFAULT_ENABLED NUMA_EMU NUMA_KEEP_MEMINFO NVDIMM_DAX NVDIMM_KEYS NVDIMM_PFN NVME_CORE NVME_FABRICS NVME_FC NVME_MULTIPATH NVME_RDMA NVME_TARGET NVME_TARGET_FC NVME_TARGET_FCLOOP NVME_TARGET_LOOP NVME_TARGET_RDMA NVME_TARGET_TCP NVME_TCP N_GSM N_HDLC OCFS2_DEBUG_FS OCFS2_FS OCFS2_FS_O2CB OCFS2_FS_STATS OCFS2_FS_USERSPACE_CLUSTER OF_GPIO OF_PMEM OMFS_FS OPENVSWITCH OPENVSWITCH_GENEVE OPENVSWITCH_GRE OPENVSWITCH_VXLAN ORANGEFS_FS OSF_PARTITION OVERLAY_FS OVERLAY_FS_INDEX OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW OVERLAY_FS_REDIRECT_DIR PACKET_DIAG PADATA PAGE_IDLE_FLAG PAGE_REPORTING PAHOLE_HAS_SPLIT_BTF PARPORT PARPORT_NOT_PC PARTITION_ADVANCED PCCARD PCCARD_NONSTATIC PCIEAER PCI_ENDPOINT PCI_IOV PCMCIA PCMCIA_LOAD_CIS PERCPU_STATS PERSISTENT_KEYRINGS PHONET PHYLINK PHY_CPCAP_USB PHY_QCOM_USB_HS PHY_QCOM_USB_HSIC PHY_SAMSUNG_USB2 PHY_TUSB1210 PKCS7_TEST_KEY PKCS8_PRIVATE_KEY_PARSER PLAYSTATION_FF PMIC_OPREGION PNFS_BLOCK PNFS_FILE_LAYOUT PNFS_FLEXFILE_LAYOUT PPP PPPOATM PPPOE PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPT_DYNAMIC PREEMPT_NOTIFIERS PREEMPT_RCU PRISM2_USB PROC_CHILDREN PROC_MEM_ALWAYS_FORCE PSI PSTORE PSTORE_842_COMPRESS PSTORE_COMPRESS PSTORE_DEFLATE_COMPRESS PSTORE_DEFLATE_COMPRESS_DEFAULT PSTORE_LZ4HC_COMPRESS PSTORE_LZ4_COMPRESS PSTORE_LZO_COMPRESS PSTORE_ZSTD_COMPRESS QCOM_QMI_HELPERS QNX4FS_FS QNX6FS_FS QRTR QRTR_TUN R8712U RADIO_ADAPTERS RADIO_SHARK RADIO_SHARK2 RADIO_TEA575X RAID6_PQ RAID_ATTRS RC_ATI_REMOTE RC_CORE RC_DEVICES RC_XBOX_DVD RDMA_RXE RDMA_SIW RDS RDS_RDMA RDS_TCP READ_ONLY_THP_FOR_FS REALTEK_AUTOPM REED_SOLOMON REED_SOLOMON_DEC8 REGMAP REGMAP_I2C REGMAP_IRQ REGMAP_MMIO REGULATOR REGULATOR_FIXED_VOLTAGE REGULATOR_TWL4030 REISERFS_FS REISERFS_FS_POSIX_ACL REISERFS_FS_SECURITY REISERFS_FS_XATTR REISERFS_PROC_INFO RESET_CONTROLLER RFKILL RFKILL_INPUT RFKILL_LEDS RMI4_2D_SENSOR RMI4_CORE RMI4_F03 RMI4_F03_SERIO RMI4_F11 RMI4_F12 RMI4_F30 ROMFS_BACKED_BY_BOTH ROMFS_FS ROMFS_ON_BLOCK ROMFS_ON_MTD ROSE RTC_DRV_HID_SENSOR_TIME RXKAD SCHED_CORE SCSI_FC_ATTRS SCSI_HPSA SCSI_ISCSI_ATTRS SCSI_LOGGING SCSI_NETLINK SCSI_SAS_ATA SCSI_SAS_ATTRS SCSI_SAS_LIBSAS SCSI_SCAN_ASYNC SCSI_SRP_ATTRS SCTP_COOKIE_HMAC_MD5 SCTP_COOKIE_HMAC_SHA1 SCTP_DEFAULT_COOKIE_HMAC_MD5 SECONDARY_TRUSTED_KEYRING SECURITY_INFINIBAND SECURITY_NETWORK_XFRM SENSORS_AQUACOMPUTER_D5NEXT SENSORS_CORSAIR_CPRO SENSORS_CORSAIR_PSU SENSORS_NZXT_KRAKEN2 SERIAL_DEV_BUS SERIAL_DEV_CTRL_TTYPORT SERIAL_MCTRL_GPIO SGI_PARTITION SIGNATURE SIGNED_PE_FILE_VERIFICATION SLHC SLIP SLIP_COMPRESSED SLIP_MODE_SLIP6 SLIP_SMART SMARTJOYPLUS_FF SMBFS_COMMON SMB_SERVER SMC SMC_DIAG SMSC_PHY SMS_SDIO_DRV SMS_SIANO_DEBUGFS SMS_SIANO_MDTV SMS_SIANO_RC SMS_USB_DRV SND SND_ALOOP SND_BCD2000 SND_CTL_LED SND_CTL_VALIDATION SND_DEBUG SND_DMA_SGBUF SND_DRIVERS SND_DUMMY SND_DYNAMIC_MINORS SND_HDA SND_HDA_CODEC_ANALOG SND_HDA_CODEC_CA0110 SND_HDA_CODEC_CA0132 SND_HDA_CODEC_CIRRUS SND_HDA_CODEC_CMEDIA SND_HDA_CODEC_CONEXANT SND_HDA_CODEC_HDMI SND_HDA_CODEC_REALTEK SND_HDA_CODEC_SI3054 SND_HDA_CODEC_SIGMATEL SND_HDA_CODEC_VIA SND_HDA_COMPONENT SND_HDA_CORE SND_HDA_GENERIC SND_HDA_GENERIC_LEDS SND_HDA_HWDEP SND_HDA_I915 SND_HDA_INPUT_BEEP SND_HDA_INTEL SND_HDA_PATCH_LOADER SND_HDA_RECONFIG SND_HRTIMER SND_HWDEP SND_INTEL_DSP_CONFIG SND_INTEL_NHLT SND_INTEL_SOUNDWIRE_ACPI SND_JACK SND_JACK_INPUT_DEV SND_MIXER_OSS SND_OSSEMUL SND_PCI SND_PCM SND_PCMCIA SND_PCM_OSS SND_PCM_OSS_PLUGINS SND_PCM_TIMER SND_PCM_XRUN_DEBUG SND_PROC_FS SND_RAWMIDI SND_SEQUENCER SND_SEQUENCER_OSS SND_SEQ_DEVICE SND_SEQ_DUMMY SND_SEQ_HRTIMER_DEFAULT SND_SEQ_MIDI SND_SEQ_MIDI_EVENT SND_SEQ_VIRMIDI SND_SUPPORT_OLD_API SND_TIMER SND_USB SND_USB_6FIRE SND_USB_AUDIO SND_USB_AUDIO_USE_MEDIA_CONTROLLER SND_USB_CAIAQ SND_USB_CAIAQ_INPUT SND_USB_HIFACE SND_USB_LINE6 SND_USB_POD SND_USB_PODHD SND_USB_TONEPORT SND_USB_UA101 SND_USB_US122L SND_USB_USX2Y SND_USB_VARIAX SND_VERBOSE_PROCFS SND_VIRMIDI SND_VIRTIO SND_VMASTER SND_X86 SOCK_CGROUP_DATA SOCK_VALIDATE_XMIT SOLARIS_X86_PARTITION SONY_FF SOUND SOUND_OSS_CORE SOUND_OSS_CORE_PRECLAIM SPI SPI_DLN2 SPI_DYNAMIC SPI_MASTER SQUASHFS SQUASHFS_4K_DEVBLK_SIZE SQUASHFS_DECOMP_SINGLE SQUASHFS_FILE_DIRECT SQUASHFS_LZ4 SQUASHFS_LZO SQUASHFS_XATTR SQUASHFS_XZ SQUASHFS_ZLIB SQUASHFS_ZSTD SSB SSB_PCIHOST_POSSIBLE SSB_PCMCIAHOST_POSSIBLE SSB_SDIOHOST_POSSIBLE STAGING STP STREAM_PARSER SUNRPC_BACKCHANNEL SUN_PARTITION SW_SYNC SYSV68_PARTITION SYSV_FS TABLET_USB_ACECAD TABLET_USB_AIPTEK TABLET_USB_HANWANG TABLET_USB_KBTAB TABLET_USB_PEGASUS TAHVO_USB TAHVO_USB_HOST_BY_DEFAULT TASKS_RCU TASKS_RCU_GENERIC TASKS_TRACE_RCU TCG_CRB TCG_TIS TCG_TIS_CORE TCG_TPM TCP_CONG_BBR TCP_CONG_BIC TCP_CONG_CDG TCP_CONG_DCTCP TCP_CONG_HSTCP TCP_CONG_HTCP TCP_CONG_HYBLA TCP_CONG_ILLINOIS TCP_CONG_LP TCP_CONG_NV TCP_CONG_SCALABLE TCP_CONG_VEGAS TCP_CONG_VENO TCP_CONG_WESTWOOD TCP_CONG_YEAH TEXTSEARCH TEXTSEARCH_BM TEXTSEARCH_FSM TEXTSEARCH_KMP THERMAL_NETLINK THP_SWAP THRUSTMASTER_FF TIPC TIPC_CRYPTO TIPC_DIAG TIPC_MEDIA_IB TIPC_MEDIA_UDP TLS TLS_TOE TOUCHSCREEN_SUR40 TOUCHSCREEN_USB_3M TOUCHSCREEN_USB_COMPOSITE TOUCHSCREEN_USB_DMC_TSC10 TOUCHSCREEN_USB_E2I TOUCHSCREEN_USB_EASYTOUCH TOUCHSCREEN_USB_EGALAX TOUCHSCREEN_USB_ELO TOUCHSCREEN_USB_ETT_TC45USB TOUCHSCREEN_USB_ETURBO TOUCHSCREEN_USB_GENERAL_TOUCH TOUCHSCREEN_USB_GOTOP TOUCHSCREEN_USB_GUNZE TOUCHSCREEN_USB_IDEALTEK TOUCHSCREEN_USB_IRTOUCH TOUCHSCREEN_USB_ITM TOUCHSCREEN_USB_JASTEC TOUCHSCREEN_USB_NEXIO TOUCHSCREEN_USB_PANJIT TOUCHSCREEN_USB_ZYTRONIC TPM_KEY_PARSER TRANSPARENT_HUGEPAGE TRANSPARENT_HUGEPAGE_MADVISE TRUSTED_KEYS TTPCI_EEPROM TTY_PRINTK TUN_VNET_CROSS_LE TWL4030_CORE TYPEC TYPEC_DP_ALTMODE TYPEC_FUSB302 TYPEC_HD3SS3220 TYPEC_MT6360 TYPEC_MUX_INTEL_PMC TYPEC_NVIDIA_ALTMODE TYPEC_RT1711H TYPEC_STUSB160X TYPEC_TCPCI TYPEC_TCPCI_MAXIM TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI TYPEC_WCOVE UBIFS_ATIME_SUPPORT UBIFS_FS UBIFS_FS_ADVANCED_COMPR UBIFS_FS_LZO UBIFS_FS_SECURITY UBIFS_FS_XATTR UBIFS_FS_ZLIB UBIFS_FS_ZSTD UCSI_ACPI UCSI_CCG UDF_FS UDMABUF UFS_FS UFS_FS_WRITE UHID ULTRIX_PARTITION UNICODE UNIXWARE_DISKLABEL UNIX_DIAG USB4 USB4_NET USBIP_CORE USBIP_HOST USBIP_VHCI_HCD USBIP_VUDC USBPCWATCHDOG USB_ACM USB_ADUTUX USB_AIRSPY USB_ALI_M5632 USB_AN2720 USB_APPLEDISPLAY USB_ARMLINUX USB_BDC_UDC USB_BELKIN USB_C67X00_HCD USB_CATC USB_CDC_PHONET USB_CDNS3 USB_CDNS3_GADGET USB_CDNS3_HOST USB_CDNS3_PCI_WRAP USB_CDNSP_GADGET USB_CDNSP_HOST USB_CDNSP_PCI USB_CDNS_HOST USB_CDNS_SUPPORT USB_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_GENERIC USB_CHIPIDEA_HOST USB_CHIPIDEA_IMX USB_CHIPIDEA_MSM USB_CHIPIDEA_PCI USB_CHIPIDEA_TEGRA USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_CONFIGFS_F_FS USB_DWC2 USB_GADGET USB_MUSB_HDRC USB_NET_CDC_SUBSET USB_ROLE_SWITCH USB_STORAGE_REALTEK USB_ULPI_BUS USB_USBNET VIDEO_DEV VIDEO_V4L2 VXLAN WIRELESS WLAN ZONE_DEVICE] disabling configs for [BUG KASAN ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed determining the merge base between 0c935c049b5c196b83b968c72d348ae6fff83ea2 and cd802e7e5f1e77ae68cd98653fb70a97189eb937 8bb7eca972ad531c9b149c0a51ab43a417385813/Linux 5.15 is a merge base, check if it has the bug testing commit 8bb7eca972ad531c9b149c0a51ab43a417385813 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 762f78eb48e61cda0f0245de616fc79d2e7c11552919e336108097748310630c all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in ocfs2_qinfo_lock_res_init representative crash: BUG: unable to handle kernel NULL pointer dereference in ocfs2_qinfo_lock_res_init, types: [UNKNOWN] testing current HEAD cd802e7e5f1e77ae68cd98653fb70a97189eb937 testing commit cd802e7e5f1e77ae68cd98653fb70a97189eb937 gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: 6fea4822a59eb554ba62b2f395e53811bbdb28f52701a4b646402e8336a95315 all runs: OK false negative chance: 0.000 # git bisect start cd802e7e5f1e77ae68cd98653fb70a97189eb937 8bb7eca972ad531c9b149c0a51ab43a417385813 Bisecting: 153918 revisions left to test after this (roughly 17 steps) [15ac468614e5e4fee82e1eb32568f427b0e51adc] Merge tag 'media/v6.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 15ac468614e5e4fee82e1eb32568f427b0e51adc gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: 5cacb5d5b0688ba3e50fcb0660e03b6db58eb7a406caec5a4242471646a6b56c run #0: crashed: VFS: Busy inodes after unmount (use-after-free) run #1: crashed: VFS: Busy inodes after unmount (use-after-free) run #2: crashed: VFS: Busy inodes after unmount (use-after-free) run #3: crashed: VFS: Busy inodes after unmount (use-after-free) run #4: crashed: VFS: Busy inodes after unmount (use-after-free) run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: VFS: Busy inodes after unmount (use-after-free), types: [UNKNOWN] # git bisect good 15ac468614e5e4fee82e1eb32568f427b0e51adc Bisecting: 76995 revisions left to test after this (roughly 16 steps) [7991c92f4cc50b971fcb4d05087e490dc47a6857] Merge tag 'ext4_for_linus-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 7991c92f4cc50b971fcb4d05087e490dc47a6857 gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: 699ab1e9a84a6aaa9cffb97dfcb28ad63aeaf5f27fcd12fb2320645de933d04d run #0: crashed: VFS: Busy inodes after unmount (use-after-free) run #1: crashed: VFS: Busy inodes after unmount (use-after-free) run #2: crashed: VFS: Busy inodes after unmount (use-after-free) run #3: crashed: VFS: Busy inodes after unmount (use-after-free) run #4: crashed: VFS: Busy inodes after unmount (use-after-free) run #5: crashed: VFS: Busy inodes after unmount (use-after-free) run #6: crashed: VFS: Busy inodes after unmount (use-after-free) run #7: crashed: VFS: Busy inodes after unmount (use-after-free) run #8: crashed: VFS: Busy inodes after unmount (use-after-free) run #9: OK representative crash: VFS: Busy inodes after unmount (use-after-free), types: [UNKNOWN] # git bisect good 7991c92f4cc50b971fcb4d05087e490dc47a6857 Bisecting: 38195 revisions left to test after this (roughly 15 steps) [9c39d5ab450f7181775957000f4aff33bfef9f7b] Merge tag 'soc-dt-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc determine whether the revision contains the guilty commit revision 7991c92f4cc50b971fcb4d05087e490dc47a6857 crashed and is reachable testing commit 9c39d5ab450f7181775957000f4aff33bfef9f7b gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: 48427da8e051c980d8f0043be5a06d07c9b445335cadf005123cc9d42dc072a4 all runs: crashed: VFS: Busy inodes after unmount (use-after-free) representative crash: VFS: Busy inodes after unmount (use-after-free), types: [UNKNOWN] # git bisect good 9c39d5ab450f7181775957000f4aff33bfef9f7b Bisecting: 19133 revisions left to test after this (roughly 14 steps) [078eac2b5ba3532ad3ded7c4aa10df8712722c50] Merge tag 'pwm/for-6.14-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 078eac2b5ba3532ad3ded7c4aa10df8712722c50 gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: 3907aac041566e487d990dd2440279a9f9db08cefbcdce240f63cd27be49ade9 all runs: OK false negative chance: 0.000 # git bisect bad 078eac2b5ba3532ad3ded7c4aa10df8712722c50 Bisecting: 9538 revisions left to test after this (roughly 13 steps) [06103dccbbd29408255a409f6f98f7f02387dc93] Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf determine whether the revision contains the guilty commit revision 15ac468614e5e4fee82e1eb32568f427b0e51adc crashed and is reachable testing commit 06103dccbbd29408255a409f6f98f7f02387dc93 gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: 26ca2101e51920fe50a04839e83c0342bcdcf5e83ccffabfae09248c97d3e92b all runs: OK false negative chance: 0.000 # git bisect bad 06103dccbbd29408255a409f6f98f7f02387dc93 Bisecting: 4767 revisions left to test after this (roughly 12 steps) [4dc333c6c28c49943a571f09c3868e5058552016] Merge branch 'thermal-intel' determine whether the revision contains the guilty commit revision 15ac468614e5e4fee82e1eb32568f427b0e51adc crashed and is reachable testing commit 4dc333c6c28c49943a571f09c3868e5058552016 gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: 98ddf109cdaee99f7297febb7d1803e2c83f41581caf310f7396f5396a0f5a65 all runs: crashed: VFS: Busy inodes after unmount (use-after-free) representative crash: VFS: Busy inodes after unmount (use-after-free), types: [UNKNOWN] # git bisect good 4dc333c6c28c49943a571f09c3868e5058552016 Bisecting: 2401 revisions left to test after this (roughly 11 steps) [86f419707c26e802287963f73c27bdaa4b21977e] Merge tag 'spi-fix-v6.13-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi determine whether the revision contains the guilty commit revision 15ac468614e5e4fee82e1eb32568f427b0e51adc crashed and is reachable testing commit 86f419707c26e802287963f73c27bdaa4b21977e gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: c6e46ca2386ba9cbcd73b212c213c4793cbbd5a7ba9539aedd9d6e0247cfbca3 all runs: crashed: VFS: Busy inodes after unmount (use-after-free) representative crash: VFS: Busy inodes after unmount (use-after-free), types: [UNKNOWN] # git bisect good 86f419707c26e802287963f73c27bdaa4b21977e Bisecting: 1203 revisions left to test after this (roughly 10 steps) [04b43ea325d21c4c98e831383a1b7d540721898a] Merge tag 'ubifs-for-linus-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs determine whether the revision contains the guilty commit revision 15ac468614e5e4fee82e1eb32568f427b0e51adc crashed and is reachable testing commit 04b43ea325d21c4c98e831383a1b7d540721898a gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: c795f41c98d5ab528e2a4b4b4c1fb71dd8ba6641881f8fd8f2085e8d333a8244 all runs: crashed: VFS: Busy inodes after unmount (use-after-free) representative crash: VFS: Busy inodes after unmount (use-after-free), types: [UNKNOWN] # git bisect good 04b43ea325d21c4c98e831383a1b7d540721898a Bisecting: 604 revisions left to test after this (roughly 9 steps) [f3ddc438a29f78f0642bfcf84407c236a0b2bdc7] Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux determine whether the revision contains the guilty commit revision 15ac468614e5e4fee82e1eb32568f427b0e51adc crashed and is reachable testing commit f3ddc438a29f78f0642bfcf84407c236a0b2bdc7 gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: 68764c81038605283fcca8533deb3bff429dcac142eb20922b50735441ed336a all runs: crashed: VFS: Busy inodes after unmount (use-after-free) representative crash: VFS: Busy inodes after unmount (use-after-free), types: [UNKNOWN] # git bisect good f3ddc438a29f78f0642bfcf84407c236a0b2bdc7 Bisecting: 300 revisions left to test after this (roughly 8 steps) [f932fb9b40749d1c9a539d89bb3e288c077aafe5] Merge tag 'v6.13-rc2-ksmbd-server-fixes' of git://git.samba.org/ksmbd determine whether the revision contains the guilty commit revision 15ac468614e5e4fee82e1eb32568f427b0e51adc crashed and is reachable testing commit f932fb9b40749d1c9a539d89bb3e288c077aafe5 gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: 07aa0dd028782366a14f199c4d743119c629dcddeb59787882b2bb4aebdb1026 all runs: OK false negative chance: 0.000 # git bisect bad f932fb9b40749d1c9a539d89bb3e288c077aafe5 Bisecting: 155 revisions left to test after this (roughly 7 steps) [21e46a79bbe6c4e1aa73b3ed998130f2ff07b128] ksmbd: set ATTR_CTIME flags when setting mtime determine whether the revision contains the guilty commit revision 15ac468614e5e4fee82e1eb32568f427b0e51adc crashed and is reachable testing commit 21e46a79bbe6c4e1aa73b3ed998130f2ff07b128 gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: c3956ab391ce8144295b873cebf5471395ec8896fda8d12c143b6220d5ae097c all runs: OK false negative chance: 0.000 # git bisect bad 21e46a79bbe6c4e1aa73b3ed998130f2ff07b128 Bisecting: 89 revisions left to test after this (roughly 6 steps) [7503345ac5f5e82fd9a36d6e6b447c016376403a] Merge tag 'block-6.13-20241207' of git://git.kernel.dk/linux determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 7503345ac5f5e82fd9a36d6e6b447c016376403a gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: 5ca8bf799bfe903c303edd7daa6a0c54c2f414903130c91cfb23474a74f55b3b all runs: crashed: VFS: Busy inodes after unmount (use-after-free) representative crash: VFS: Busy inodes after unmount (use-after-free), types: [UNKNOWN] # git bisect good 7503345ac5f5e82fd9a36d6e6b447c016376403a Bisecting: 48 revisions left to test after this (roughly 6 steps) [62b5a46999c74497fe10eabd7d19701c505b23e3] Merge tag '6.13-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6 determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 62b5a46999c74497fe10eabd7d19701c505b23e3 gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: 4cc65cc063ddbe96dc75f627e014b38d8c51fce908f56c8be9d9dedb1cb52536 all runs: crashed: VFS: Busy inodes after unmount (use-after-free) representative crash: VFS: Busy inodes after unmount (use-after-free), types: [UNKNOWN] # git bisect good 62b5a46999c74497fe10eabd7d19701c505b23e3 Bisecting: 24 revisions left to test after this (roughly 5 steps) [f1ee5483e40881d8ad5a63aa148b753b5c6a839b] iio: magnetometer: yas530: use signed integer type for clamp limits determine whether the revision contains the guilty commit revision 04b43ea325d21c4c98e831383a1b7d540721898a crashed and is reachable testing commit f1ee5483e40881d8ad5a63aa148b753b5c6a839b gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: a38f3a7d53e41cf8a074b946e58b11b0f637778f996b923dbe5bf1a49d9612eb all runs: OK false negative chance: 0.000 # git bisect bad f1ee5483e40881d8ad5a63aa148b753b5c6a839b Bisecting: 11 revisions left to test after this (roughly 4 steps) [6a7de1bf218d75f27f68d6a3f5ae1eb7332b941e] mm: open-code page_folio() in dump_page() determine whether the revision contains the guilty commit revision 04b43ea325d21c4c98e831383a1b7d540721898a crashed and is reachable testing commit 6a7de1bf218d75f27f68d6a3f5ae1eb7332b941e gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: c959894f660fd9d1297fe7065833fd41a4b091ab3be1dd65bc9ae26e131bfcc0 all runs: OK false negative chance: 0.000 # git bisect bad 6a7de1bf218d75f27f68d6a3f5ae1eb7332b941e Bisecting: 5 revisions left to test after this (roughly 3 steps) [965b5dd1894f4525f38c1b5f99b0106a07dbb5db] ocfs2: free inode when ocfs2_get_init_inode() fails determine whether the revision contains the guilty commit revision 04b43ea325d21c4c98e831383a1b7d540721898a crashed and is reachable testing commit 965b5dd1894f4525f38c1b5f99b0106a07dbb5db gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: dd863cc50ce63344949d4e7a691ef0e9ce81df764d1779ccc69f2c2fa38695c5 all runs: OK false negative chance: 0.000 # git bisect bad 965b5dd1894f4525f38c1b5f99b0106a07dbb5db Bisecting: 2 revisions left to test after this (roughly 2 steps) [091c1dd2d4df6edd1beebe0e5863d4034ade9572] mm/mempolicy: fix migrate_to_node() assuming there is at least one VMA in a MM determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 091c1dd2d4df6edd1beebe0e5863d4034ade9572 gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: 93d3ad7a2dcc303c9cbf2eee751f482b3e19e54890bafe89d77fe5124a55ee4e all runs: crashed: VFS: Busy inodes after unmount (use-after-free) representative crash: VFS: Busy inodes after unmount (use-after-free), types: [UNKNOWN] # git bisect good 091c1dd2d4df6edd1beebe0e5863d4034ade9572 Bisecting: 0 revisions left to test after this (roughly 1 step) [985ebec4ab0a28bb5910c3b1481a40fbf7f9e61d] nilfs2: fix potential out-of-bounds memory access in nilfs_find_entry() determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 985ebec4ab0a28bb5910c3b1481a40fbf7f9e61d gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: 8fe150ff1e2fe2d9b5f839e4a0b13f6e30f779c75c3f03dba6ddb65fc21745d6 all runs: crashed: VFS: Busy inodes after unmount (use-after-free) representative crash: VFS: Busy inodes after unmount (use-after-free), types: [UNKNOWN] # git bisect good 985ebec4ab0a28bb5910c3b1481a40fbf7f9e61d 965b5dd1894f4525f38c1b5f99b0106a07dbb5db is the first bad commit commit 965b5dd1894f4525f38c1b5f99b0106a07dbb5db Author: Tetsuo Handa Date: Sat Nov 23 22:28:34 2024 +0900 ocfs2: free inode when ocfs2_get_init_inode() fails syzbot is reporting busy inodes after unmount, for commit 9c89fe0af826 ("ocfs2: Handle error from dquot_initialize()") forgot to call iput() when new_inode() succeeded and dquot_initialize() failed. Link: https://lkml.kernel.org/r/e68c0224-b7c6-4784-b4fa-a9fc8c675525@I-love.SAKURA.ne.jp Fixes: 9c89fe0af826 ("ocfs2: Handle error from dquot_initialize()") Signed-off-by: Tetsuo Handa Reported-by: syzbot+0af00f6a2cba2058b5db@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=0af00f6a2cba2058b5db Tested-by: syzbot+0af00f6a2cba2058b5db@syzkaller.appspotmail.com Reviewed-by: Joseph Qi Cc: Mark Fasheh Cc: Joel Becker Cc: Junxiao Bi Cc: Changwei Ge Cc: Jun Piao Signed-off-by: Andrew Morton fs/ocfs2/namei.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) accumulated error probability: 0.00 culprit signature: dd863cc50ce63344949d4e7a691ef0e9ce81df764d1779ccc69f2c2fa38695c5 parent signature: 8fe150ff1e2fe2d9b5f839e4a0b13f6e30f779c75c3f03dba6ddb65fc21745d6 revisions tested: 27, total time: 9h51m24.97475909s (build: 4h10m52.882861457s, test: 5h25m4.515910941s) first good commit: 965b5dd1894f4525f38c1b5f99b0106a07dbb5db ocfs2: free inode when ocfs2_get_init_inode() fails recipients (to): ["akpm@linux-foundation.org" "joseph.qi@linux.alibaba.com" "penguin-kernel@i-love.sakura.ne.jp" "syzbot+0af00f6a2cba2058b5db@syzkaller.appspotmail.com"] recipients (cc): []