ci2 starts bisection 2025-11-09 05:32:39.456523484 +0000 UTC m=+219249.071987244 bisecting fixing commit since 43bb85222e53926decace01ce6584ca88e09a0a9 building syzkaller on e2beed91937c0ace342f19a2e9afb67adb3a828a ensuring issue is reproducible on original commit 43bb85222e53926decace01ce6584ca88e09a0a9 testing commit 43bb85222e53926decace01ce6584ca88e09a0a9 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 77f570036dbcf1d0e56269638807a89d0731deccdf2c465ee6119f1e88fb0f83 run #0: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #1: crashed: KASAN: slab-out-of-bounds Read in ocfs2_check_dir_entry run #2: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #3: crashed: KASAN: slab-out-of-bounds Read in ocfs2_check_dir_entry run #4: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #5: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #6: crashed: KASAN: out-of-bounds Read in ocfs2_check_dir_entry run #7: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #8: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #9: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #10: crashed: KASAN: out-of-bounds Read in ocfs2_check_dir_entry run #11: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #12: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #13: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #14: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #15: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #16: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #17: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #18: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #19: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry representative crash: KASAN: use-after-free Read in ocfs2_check_dir_entry, types: [KASAN-USE-AFTER-FREE-READ] check whether we can drop unnecessary instrumentation disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning locking], they are not needed testing commit 43bb85222e53926decace01ce6584ca88e09a0a9 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e5ab928f35ef5b34f1a87d4dfd28c30339d0b76d4b1762622c501fd9c02a7f94 run #0: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #1: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #2: crashed: KASAN: out-of-bounds Read in ocfs2_check_dir_entry run #3: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #4: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #5: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #6: crashed: KASAN: out-of-bounds Read in ocfs2_check_dir_entry run #7: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #8: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #9: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry representative crash: KASAN: use-after-free Read in ocfs2_check_dir_entry, types: [KASAN-USE-AFTER-FREE-READ] the bug reproduces without the instrumentation disabling configs for [memleak ubsan bug_or_warning locking atomic_sleep hang], they are not needed kconfig minimization: base=3707 full=7424 leaves diff=2100 split chunks (needed=false): <2100> split chunk #0 of len 2100 into 5 parts testing without sub-chunk 1/5 disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed testing commit 43bb85222e53926decace01ce6584ca88e09a0a9 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d907f55fe952fc15aee41092100708f239d6502be2acde518b54a0cf0bd575c0 run #0: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #1: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #2: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #3: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #4: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #5: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #6: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #7: crashed: KASAN: out-of-bounds Read in ocfs2_check_dir_entry run #8: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #9: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry representative crash: KASAN: use-after-free Read in ocfs2_check_dir_entry, types: [KASAN-USE-AFTER-FREE-READ] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed testing commit 43bb85222e53926decace01ce6584ca88e09a0a9 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7993343f9bddf0715d6baae72cf3cbfb176fc2f43bdc0c1a40ab0656de470a65 run #0: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #1: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #2: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #3: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #4: crashed: KASAN: out-of-bounds Read in ocfs2_check_dir_entry run #5: crashed: KASAN: out-of-bounds Read in ocfs2_check_dir_entry run #6: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #7: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry run #8: crashed: KASAN: out-of-bounds Read in ocfs2_check_dir_entry run #9: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry representative crash: KASAN: use-after-free Read in ocfs2_check_dir_entry, types: [KASAN-USE-AFTER-FREE-READ KASAN-READ] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [ubsan bug_or_warning locking atomic_sleep hang memleak], they are not needed testing commit 43bb85222e53926decace01ce6584ca88e09a0a9 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c8c838d8b255c2b47c71e504ea19422a472263ae560052806f22de1e18b0969d all runs: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry representative crash: KASAN: use-after-free Read in ocfs2_check_dir_entry, types: [KASAN-USE-AFTER-FREE-READ] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning locking], they are not needed testing commit 43bb85222e53926decace01ce6584ca88e09a0a9 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4dccf0d4578aaa0996e02cb7fff5a6192e1dc4d38b623b231fc26bbd429f493b all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed testing commit 43bb85222e53926decace01ce6584ca88e09a0a9 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 50cbafcf605dfd8e5ee6c344596627b647f53a6ab8a79db8bfead8c233b037f6 all runs: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry representative crash: KASAN: use-after-free Read in ocfs2_check_dir_entry, types: [KASAN-USE-AFTER-FREE-READ] the chunk can be dropped minimized to 420 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_ADVANCED NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 NF_CONNTRACK_SNMP NF_NAT_REDIRECT NF_NAT_SNMP_BASIC NF_NAT_TFTP NF_SOCKET_IPV4 NF_SOCKET_IPV6 NF_TABLES NF_TABLES_ARP NF_TPROXY_IPV4 NF_TPROXY_IPV6 NILFS2_FS NLMON NLS_CODEPAGE_1250 NLS_CODEPAGE_1251 NLS_CODEPAGE_737 NLS_CODEPAGE_775 NLS_CODEPAGE_850 NLS_CODEPAGE_852 NLS_CODEPAGE_855 NLS_CODEPAGE_857 NLS_CODEPAGE_860 NLS_CODEPAGE_861 NLS_CODEPAGE_862 NLS_CODEPAGE_863 NLS_CODEPAGE_864 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 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 TOOLS_SUPPORT_RELR 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_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 [memleak ubsan bug_or_warning locking atomic_sleep hang], they are not needed testing current HEAD cc5ec87693063acebb60f587e8a019ba9b94ae0e testing commit cc5ec87693063acebb60f587e8a019ba9b94ae0e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4cc1371801743b3b696a8347849bd9f2a035e049e5821fd4f8c003b28cd566d7 all runs: crashed: KASAN: use-after-free Read in ocfs2_check_dir_entry representative crash: KASAN: use-after-free Read in ocfs2_check_dir_entry, types: [KASAN-USE-AFTER-FREE-READ] crash still not fixed/happens on the oldest tested release revisions tested: 8, total time: 1h49m43.813163147s (build: 50m38.940939746s, test: 56m31.368457763s) crash still not fixed or there were kernel test errors commit msg: Linux 5.15.196 crash: KASAN: use-after-free Read in ocfs2_check_dir_entry WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ocfs2: Mounting device (7,3) on (node local, slot 0) with writeback data mode. ================================================================== BUG: KASAN: use-after-free in ocfs2_check_dir_entry.constprop.0+0x2b6/0x310 fs/ocfs2/dir.c:305 Read of size 2 at addr ffff888067253cf0 by task syz.3.17/3054 CPU: 1 PID: 3054 Comm: syz.3.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x41/0x5e lib/dump_stack.c:106 print_address_description.constprop.0.cold+0x6c/0x309 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report.cold+0x83/0xdf mm/kasan/report.c:451 ocfs2_check_dir_entry.constprop.0+0x2b6/0x310 fs/ocfs2/dir.c:305 ocfs2_dir_foreach_blk_id+0x1aa/0x960 fs/ocfs2/dir.c:1799 ocfs2_dir_foreach_blk fs/ocfs2/dir.c:1927 [inline] ocfs2_readdir+0x36e/0x400 fs/ocfs2/dir.c:1970 iterate_dir+0x1a6/0x6d0 fs/readdir.c:67 __do_sys_getdents fs/readdir.c:286 [inline] __se_sys_getdents fs/readdir.c:271 [inline] __x64_sys_getdents+0x122/0x220 fs/readdir.c:271 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x33/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fc3ab9a8ba9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc3ab819038 EFLAGS: 00000246 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 00007fc3abbeffa0 RCX: 00007fc3ab9a8ba9 RDX: 0000000000000054 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007fc3aba2be19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fc3abbf0038 R14: 00007fc3abbeffa0 R15: 00007fff08fc6128 The buggy address belongs to the page: page:ffffea00019c94c0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x67253 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 ffffea0001a75f88 ffffea0001a44748 0000000000000000 raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as freed page last allocated via order 0, migratetype Movable, gfp_mask 0x1100dca(GFP_HIGHUSER_MOVABLE|__GFP_ZERO), pid 2159, ts 63531237091, free_ts 63541662763 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x1369/0x31f0 mm/page_alloc.c:4192 __alloc_pages+0x1b2/0x440 mm/page_alloc.c:5487 alloc_pages_vma+0xe0/0x650 mm/mempolicy.c:2146 do_anonymous_page mm/memory.c:3838 [inline] handle_pte_fault mm/memory.c:4648 [inline] __handle_mm_fault+0x1d97/0x33a0 mm/memory.c:4785 handle_mm_fault+0x1c5/0x5b0 mm/memory.c:4883 do_user_addr_fault+0x298/0xc80 arch/x86/mm/fault.c:1357 handle_page_fault arch/x86/mm/fault.c:1445 [inline] exc_page_fault+0x5a/0xb0 arch/x86/mm/fault.c:1501 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606 copy_user_enhanced_fast_string+0xe/0x40 arch/x86/lib/copy_user_64.S:205 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline] raw_copy_to_user arch/x86/include/asm/uaccess_64.h:58 [inline] copyout lib/iov_iter.c:157 [inline] copyout lib/iov_iter.c:151 [inline] copy_page_to_iter_iovec lib/iov_iter.c:228 [inline] __copy_page_to_iter lib/iov_iter.c:861 [inline] copy_page_to_iter+0x3d8/0xb60 lib/iov_iter.c:889 filemap_read+0x4e1/0xab0 mm/filemap.c:2698 blkdev_read_iter+0xfb/0x180 block/fops.c:563 call_read_iter include/linux/fs.h:2167 [inline] new_sync_read+0x35a/0x5f0 fs/read_write.c:404 vfs_read+0x209/0x470 fs/read_write.c:485 ksys_read+0xf4/0x1d0 fs/read_write.c:623 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x33/0x80 arch/x86/entry/common.c:80 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1340 [inline] free_pcp_prepare+0x379/0x850 mm/page_alloc.c:1391 free_unref_page_prepare mm/page_alloc.c:3317 [inline] free_unref_page_list+0x16f/0xbd0 mm/page_alloc.c:3433 release_pages+0xb3a/0x1480 mm/swap.c:963 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline] tlb_flush_mmu_free mm/mmu_gather.c:240 [inline] tlb_flush_mmu mm/mmu_gather.c:247 [inline] tlb_finish_mmu+0x127/0x790 mm/mmu_gather.c:338 unmap_region+0x298/0x390 mm/mmap.c:2669 __do_munmap+0x47e/0x10d0 mm/mmap.c:2899 __vm_munmap+0xd2/0x1a0 mm/mmap.c:2952 __do_sys_munmap mm/mmap.c:2978 [inline] __se_sys_munmap mm/mmap.c:2974 [inline] __x64_sys_munmap+0x5d/0x80 mm/mmap.c:2974 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x33/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 Memory state around the buggy address: ffff888067253b80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff888067253c00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff888067253c80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff888067253d00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff888067253d80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================