ci2 starts bisection 2023-07-25 18:02:53.924488393 +0000 UTC m=+11873.198103653
bisecting fixing commit since 2f3918bc53fb998fdeed8683ddc61194ceb84edf
building syzkaller on 49519f067f7fc9bfbf869e6851a4d398a9f7863f
ensuring issue is reproducible on original commit 2f3918bc53fb998fdeed8683ddc61194ceb84edf

testing commit 2f3918bc53fb998fdeed8683ddc61194ceb84edf gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 6f42846a17cc8bd3e764eea0f58bb6e3d5b7bc60701b5414d3f8b01c2d6740bd
run #0: crashed: KASAN: use-after-free Read in udf_sync_fs
run #1: crashed: KASAN: use-after-free Read in udf_sync_fs
run #2: crashed: KASAN: use-after-free Read in udf_sync_fs
run #3: crashed: KASAN: use-after-free Read in udf_sync_fs
run #4: crashed: KASAN: use-after-free Read in udf_sync_fs
run #5: crashed: KASAN: use-after-free Read in udf_sync_fs
run #6: crashed: KASAN: use-after-free Read in udf_sync_fs
run #7: crashed: KASAN: use-after-free Read in udf_sync_fs
run #8: crashed: KASAN: use-after-free Write in udf_close_lvid
run #9: crashed: KASAN: use-after-free Write in udf_close_lvid
run #10: crashed: KASAN: use-after-free Read in udf_sync_fs
run #11: crashed: KASAN: use-after-free Read in udf_sync_fs
run #12: crashed: KASAN: use-after-free Write in udf_close_lvid
run #13: crashed: KASAN: use-after-free Write in udf_close_lvid
run #14: crashed: KASAN: use-after-free Read in udf_sync_fs
run #15: crashed: KASAN: use-after-free Read in udf_sync_fs
run #16: crashed: KASAN: use-after-free Read in udf_sync_fs
run #17: crashed: KASAN: use-after-free Read in udf_sync_fs
run #18: crashed: KASAN: use-after-free Read in udf_sync_fs
run #19: crashed: KASAN: use-after-free Read in udf_sync_fs
run #20: crashed: KASAN: use-after-free Read in udf_sync_fs
run #21: crashed: KASAN: use-after-free Read in udf_sync_fs
run #22: crashed: KASAN: use-after-free Write in udf_close_lvid
run #23: crashed: KASAN: use-after-free Write in udf_close_lvid
run #24: crashed: KASAN: use-after-free Write in udf_close_lvid
run #25: crashed: KASAN: use-after-free Write in udf_close_lvid
run #26: crashed: KASAN: use-after-free Write in udf_close_lvid
run #27: crashed: KASAN: use-after-free Write in udf_close_lvid
run #28: crashed: KASAN: use-after-free Read in udf_sync_fs
run #29: crashed: KASAN: use-after-free Read in udf_sync_fs
run #30: crashed: KASAN: use-after-free Read in udf_sync_fs
run #31: crashed: KASAN: use-after-free Read in udf_sync_fs
run #32: crashed: KASAN: use-after-free Read in udf_sync_fs
run #33: crashed: KASAN: use-after-free Read in udf_sync_fs
run #34: crashed: KASAN: use-after-free Read in udf_sync_fs
run #35: crashed: KASAN: use-after-free Read in udf_sync_fs
run #36: crashed: KASAN: use-after-free Read in udf_sync_fs
run #37: crashed: KASAN: use-after-free Read in udf_sync_fs
run #38: crashed: KASAN: use-after-free Write in udf_close_lvid
run #39: crashed: KASAN: use-after-free Write in udf_close_lvid
representative crash: KASAN: use-after-free Read in udf_sync_fs, types: [KASAN]
check whether we can drop unnecessary instrumentation
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit 2f3918bc53fb998fdeed8683ddc61194ceb84edf gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: f2d732898f21c1458bf1606a360685ee52ccec21b10358eef1e43e2e90bd1193
run #0: crashed: KASAN: use-after-free Write in udf_close_lvid
run #1: crashed: KASAN: use-after-free Write in udf_close_lvid
run #2: crashed: KASAN: use-after-free Read in udf_sync_fs
run #3: crashed: KASAN: use-after-free Read in udf_sync_fs
run #4: crashed: KASAN: use-after-free Write in udf_close_lvid
run #5: crashed: KASAN: use-after-free Write in udf_close_lvid
run #6: crashed: KASAN: use-after-free Write in udf_close_lvid
run #7: crashed: KASAN: use-after-free Write in udf_close_lvid
run #8: crashed: KASAN: use-after-free Read in udf_sync_fs
run #9: crashed: KASAN: use-after-free Read in udf_sync_fs
run #10: crashed: KASAN: use-after-free Read in udf_sync_fs
run #11: crashed: KASAN: use-after-free Read in udf_sync_fs
run #12: crashed: KASAN: use-after-free Read in udf_sync_fs
run #13: crashed: KASAN: use-after-free Read in udf_sync_fs
run #14: crashed: KASAN: use-after-free Read in udf_sync_fs
run #15: crashed: KASAN: use-after-free Read in udf_sync_fs
run #16: crashed: KASAN: use-after-free Write in udf_close_lvid
run #17: crashed: KASAN: use-after-free Write in udf_close_lvid
run #18: crashed: KASAN: use-after-free Write in udf_close_lvid
run #19: crashed: KASAN: use-after-free Write in udf_close_lvid
representative crash: KASAN: use-after-free Write in udf_close_lvid, types: [KASAN]
the bug reproduces without the instrumentation
disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed
kconfig minimization: base=3820 full=7523 leaves diff=1994
split chunks (needed=false): <1994>
split chunk #0 of len 1994 into 5 parts
testing without sub-chunk 1/5
testing commit 2f3918bc53fb998fdeed8683ddc61194ceb84edf gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5af166ff06e635905d389417b386d27c5bfd2d7b30176ae156f076e548c8f645
run #0: crashed: KASAN: use-after-free Write in udf_close_lvid
run #1: crashed: KASAN: use-after-free Write in udf_close_lvid
run #2: crashed: KASAN: use-after-free Read in udf_sync_fs
run #3: crashed: KASAN: use-after-free Read in udf_sync_fs
run #4: crashed: KASAN: use-after-free Read in udf_sync_fs
run #5: crashed: KASAN: use-after-free Read in udf_sync_fs
run #6: crashed: KASAN: use-after-free Read in udf_sync_fs
run #7: crashed: KASAN: use-after-free Read in udf_sync_fs
run #8: crashed: KASAN: use-after-free Read in udf_sync_fs
run #9: crashed: KASAN: use-after-free Read in udf_sync_fs
run #10: crashed: KASAN: use-after-free Read in udf_sync_fs
run #11: crashed: KASAN: use-after-free Read in udf_sync_fs
run #12: crashed: KASAN: use-after-free Write in udf_close_lvid
run #13: crashed: KASAN: use-after-free Write in udf_close_lvid
run #14: crashed: KASAN: use-after-free Write in udf_close_lvid
run #15: crashed: KASAN: use-after-free Write in udf_close_lvid
run #16: crashed: KASAN: use-after-free Read in udf_sync_fs
run #17: crashed: KASAN: use-after-free Read in udf_sync_fs
run #18: crashed: KASAN: use-after-free Read in udf_sync_fs
run #19: crashed: KASAN: use-after-free Read in udf_sync_fs
representative crash: KASAN: use-after-free Write in udf_close_lvid, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 2/5
testing commit 2f3918bc53fb998fdeed8683ddc61194ceb84edf gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: b022021e7d3c4182002b342436ee8621c599c6f15859676fcad1beed0182a844
run #0: crashed: KASAN: use-after-free Read in udf_sync_fs
run #1: crashed: KASAN: use-after-free Read in udf_sync_fs
run #2: crashed: KASAN: use-after-free Read in udf_sync_fs
run #3: crashed: KASAN: use-after-free Read in udf_sync_fs
run #4: crashed: KASAN: use-after-free Read in udf_sync_fs
run #5: crashed: KASAN: use-after-free Read in udf_sync_fs
run #6: crashed: KASAN: use-after-free Read in udf_sync_fs
run #7: crashed: KASAN: use-after-free Read in udf_sync_fs
run #8: crashed: KASAN: use-after-free Read in udf_sync_fs
run #9: crashed: KASAN: use-after-free Read in udf_sync_fs
run #10: crashed: KASAN: use-after-free Read in udf_sync_fs
run #11: crashed: KASAN: use-after-free Read in udf_sync_fs
run #12: crashed: KASAN: use-after-free Read in udf_sync_fs
run #13: crashed: KASAN: use-after-free Read in udf_sync_fs
run #14: crashed: KASAN: use-after-free Write in udf_close_lvid
run #15: crashed: KASAN: use-after-free Write in udf_close_lvid
run #16: crashed: KASAN: use-after-free Write in udf_close_lvid
run #17: crashed: KASAN: use-after-free Write in udf_close_lvid
run #18: crashed: KASAN: use-after-free Write in udf_close_lvid
run #19: crashed: KASAN: use-after-free Write in udf_close_lvid
representative crash: KASAN: use-after-free Read in udf_sync_fs, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 3/5
testing commit 2f3918bc53fb998fdeed8683ddc61194ceb84edf gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: df0600e7913a8a0f2dd1316fb843feb31c5f08403d9826dfe7c822d4d46ebcad
run #0: crashed: KASAN: use-after-free Read in udf_sync_fs
run #1: crashed: KASAN: use-after-free Read in udf_sync_fs
run #2: crashed: KASAN: use-after-free Read in udf_sync_fs
run #3: crashed: KASAN: use-after-free Read in udf_sync_fs
run #4: crashed: KASAN: out-of-bounds Read in udf_sync_fs
run #5: crashed: KASAN: out-of-bounds Read in udf_sync_fs
run #6: crashed: KASAN: use-after-free Read in udf_sync_fs
run #7: crashed: KASAN: use-after-free Read in udf_sync_fs
run #8: crashed: KASAN: use-after-free Write in udf_close_lvid
run #9: crashed: KASAN: use-after-free Write in udf_close_lvid
run #10: crashed: KASAN: use-after-free Write in udf_close_lvid
run #11: crashed: KASAN: use-after-free Write in udf_close_lvid
run #12: crashed: KASAN: use-after-free Read in udf_sync_fs
run #13: crashed: KASAN: use-after-free Read in udf_sync_fs
run #14: crashed: KASAN: use-after-free Write in udf_close_lvid
run #15: crashed: KASAN: use-after-free Write in udf_close_lvid
run #16: crashed: KASAN: use-after-free Write in udf_close_lvid
run #17: crashed: KASAN: use-after-free Write in udf_close_lvid
run #18: crashed: KASAN: use-after-free Read in udf_sync_fs
run #19: crashed: KASAN: use-after-free Read in udf_sync_fs
representative crash: KASAN: use-after-free Read in udf_sync_fs, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 4/5
testing commit 2f3918bc53fb998fdeed8683ddc61194ceb84edf gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 40174998732bac5439b04ac31e450f576fbe7d71ccb9c4dbb484d66d720d8acd
all runs: OK
false negative chance: 0.000
testing without sub-chunk 5/5
testing commit 2f3918bc53fb998fdeed8683ddc61194ceb84edf gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 64f71450f6330bfe8ba7333101c41d824f8fc05ba2348aec557708dc3fee91e1
run #0: crashed: KASAN: use-after-free Read in udf_sync_fs
run #1: crashed: KASAN: use-after-free Read in udf_sync_fs
run #2: crashed: KASAN: use-after-free Read in udf_sync_fs
run #3: crashed: KASAN: use-after-free Read in udf_sync_fs
run #4: crashed: KASAN: use-after-free Read in udf_sync_fs
run #5: crashed: KASAN: use-after-free Read in udf_sync_fs
run #6: crashed: KASAN: use-after-free Read in udf_sync_fs
run #7: crashed: KASAN: use-after-free Read in udf_sync_fs
run #8: crashed: KASAN: use-after-free Write in udf_close_lvid
run #9: crashed: KASAN: use-after-free Write in udf_close_lvid
run #10: crashed: KASAN: use-after-free Write in udf_close_lvid
run #11: crashed: KASAN: use-after-free Write in udf_close_lvid
run #12: crashed: KASAN: use-after-free Write in udf_close_lvid
run #13: crashed: KASAN: use-after-free Write in udf_close_lvid
run #14: crashed: KASAN: use-after-free Write in udf_close_lvid
run #15: crashed: KASAN: use-after-free Write in udf_close_lvid
run #16: crashed: KASAN: use-after-free Write in udf_close_lvid
run #17: crashed: KASAN: use-after-free Write in udf_close_lvid
run #18: crashed: KASAN: use-after-free Read in udf_sync_fs
run #19: crashed: KASAN: use-after-free Read in udf_sync_fs
representative crash: KASAN: use-after-free Read in udf_sync_fs, types: [KASAN]
the chunk can be dropped
minimized to 399 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ATM AX25 CFG80211 CMA DAX DLM DVB_CORE ENCRYPTED_KEYS EXTCON GENEVE GPIOLIB HAMRADIO HAVE_CLK HID_SENSOR_HUB HID_SMARTJOYPLUS HID_THRUSTMASTER IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN IP_SCTP L2TP LIBNVDIMM MEDIA_COMMON_OPTIONS MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_RETU MMC MTD MTD_UBI NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 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 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_POOL 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 PM_CLK 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_NOTIFIERS PRISM2_USB PROC_CHILDREN 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 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_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 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 SMC SMC_DIAG SMSC_PHY SMS_SIANO_MDTV SMS_SIANO_RC SMS_USB_DRV SND SND_ALOOP SND_BCD2000 SND_CTL_FAST_LOOKUP SND_CTL_LED 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_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 STAGING_MEDIA STP STREAM_PARSER SUNRPC_BACKCHANNEL SUN_PARTITION SW_SYNC SYSFB 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_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 TRANSPARENT_HUGEPAGE TRANSPARENT_HUGEPAGE_MADVISE TTPCI_EEPROM TTY_PRINTK TUN_VNET_CROSS_LE TWL4030_CORE TYPEC TYPEC_FUSB302 TYPEC_TCPCI TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI 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 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_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_HOST USB_CHIPIDEA_PCI USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_CONFIGFS_F_FS USB_CONFIGFS_F_HID USB_CONFIGFS_F_LB_SS USB_DWC2 USB_GADGET USB_MUSB_HDRC USB_NET_CDC_SUBSET USB_ROLE_SWITCH USB_STORAGE_REALTEK USB_ULPI_BUS USB_USBNET VIDEO_DEV VXLAN WIRELESS WLAN ZONE_DEVICE]
disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing current HEAD 5302e81aa2091d7dd59803f0727d1ba35ed2f929
testing commit 5302e81aa2091d7dd59803f0727d1ba35ed2f929 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 086e6d0f892313d84ec96e9148fbc74b3770be844fd4788a54eee856d5f95868
run #0: crashed: KASAN: use-after-free Write in udf_close_lvid
run #1: crashed: KASAN: use-after-free Write in udf_close_lvid
run #2: crashed: KASAN: use-after-free Read in udf_sync_fs
run #3: crashed: KASAN: use-after-free Read in udf_sync_fs
run #4: crashed: KASAN: use-after-free Write in udf_close_lvid
run #5: crashed: KASAN: use-after-free Write in udf_close_lvid
run #6: crashed: KASAN: use-after-free Write in udf_close_lvid
run #7: crashed: KASAN: use-after-free Write in udf_close_lvid
run #8: crashed: KASAN: use-after-free Write in udf_close_lvid
run #9: crashed: KASAN: use-after-free Write in udf_close_lvid
run #10: crashed: KASAN: use-after-free Read in udf_sync_fs
run #11: crashed: KASAN: use-after-free Read in udf_sync_fs
run #12: crashed: KASAN: use-after-free Read in udf_sync_fs
run #13: crashed: KASAN: use-after-free Read in udf_sync_fs
run #14: crashed: KASAN: use-after-free Read in udf_sync_fs
run #15: crashed: KASAN: use-after-free Read in udf_sync_fs
run #16: crashed: KASAN: use-after-free Read in udf_sync_fs
run #17: crashed: KASAN: use-after-free Read in udf_sync_fs
run #18: crashed: KASAN: use-after-free Write in udf_close_lvid
run #19: crashed: KASAN: use-after-free Write in udf_close_lvid
representative crash: KASAN: use-after-free Write in udf_close_lvid, types: [KASAN]
crash still not fixed/happens on the oldest tested release
revisions tested: 8, total time: 2h34m33.30210058s (build: 1h56m44.985770578s, test: 30m58.491076727s)
crash still not fixed on HEAD or HEAD had kernel test errors
commit msg: Linux 6.1.41
crash: KASAN: use-after-free Write in udf_close_lvid
==================================================================
BUG: KASAN: use-after-free in udf_close_lvid+0x5c1/0x930 fs/udf/super.c:2073
Write of size 1 at addr ffff88809f7ce980 by task syz-executor.0/1582

CPU: 1 PID: 1582 Comm: syz-executor.0 Not tainted 6.1.41-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xf4/0x251 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:284 [inline]
 print_report+0x15f/0x4f0 mm/kasan/report.c:395
 kasan_report+0x136/0x160 mm/kasan/report.c:495
 udf_close_lvid+0x5c1/0x930 fs/udf/super.c:2073
 udf_put_super+0xad/0x130 fs/udf/super.c:2360
 generic_shutdown_super+0x107/0x2c0 fs/super.c:501
 kill_block_super+0x75/0xb0 fs/super.c:1450
 deactivate_locked_super+0x71/0xd0 fs/super.c:332
 cleanup_mnt+0x2bd/0x330 fs/namespace.c:1186
 task_work_run+0x206/0x280 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xa4/0xb0 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0x64/0xb0 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x27/0x1c0 kernel/entry/common.c:297
 do_syscall_64+0x49/0x80 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb3be87dc87
Code: b0 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 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffc1f56c218 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fb3be87dc87
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffc1f56c2d0
RBP: 00007ffc1f56c2d0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc1f56d390
R13: 00007fb3be8d7c5a R14: 000000000000d937 R15: 0000000000000006
 </TASK>

The buggy address belongs to the physical page:
page:ffffea00027df380 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x9f7ce
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 ffffea00027df388 ffffea00027df388 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner info is not present (never set?)

Memory state around the buggy address:
 ffff88809f7ce880: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88809f7ce900: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff88809f7ce980: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                   ^
 ffff88809f7cea00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88809f7cea80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================