ci2 starts bisection 2025-06-20 10:15:38.420465947 +0000 UTC m=+160398.045485385
bisecting fixing commit since fa93fa65db6e232b5f2226dd86c9f066ec6dfd97
building syzkaller on 1eda0d1459e5ff07903ffa2f8cedf55ae7b24af0
ensuring issue is reproducible on original commit fa93fa65db6e232b5f2226dd86c9f066ec6dfd97

testing commit fa93fa65db6e232b5f2226dd86c9f066ec6dfd97 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: afe3e8792c338ead6b91e051d456d23b91944eb3c6ca7e333bd2e629042bc783
run #0: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #1: crashed: KASAN: use-after-free Write in udf_close_lvid
run #2: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #3: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #4: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #5: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #6: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #7: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #8: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #9: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #10: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #11: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #12: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #13: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #14: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #15: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #16: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #17: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #18: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #19: crashed: KASAN: use-after-free Read in udf_finalize_lvid
representative crash: KASAN: use-after-free Read in udf_finalize_lvid, 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 fa93fa65db6e232b5f2226dd86c9f066ec6dfd97 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: f311f7576c2ef08b299015e018c6274904e18da10e6d0ab01e6aa2a7270f85b0
all runs: crashed: KASAN: use-after-free Read in udf_finalize_lvid
representative crash: KASAN: use-after-free Read in udf_finalize_lvid, types: [KASAN]
the bug reproduces without the instrumentation
disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
kconfig minimization: base=3707 full=7299 leaves diff=2038
split chunks (needed=false): <2038>
split chunk #0 of len 2038 into 5 parts
testing without sub-chunk 1/5
disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit fa93fa65db6e232b5f2226dd86c9f066ec6dfd97 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 8726b9744cae14883c68236f5c131fca6a586a6cf28d4a52a4bffeb4bfa0ea04
run #0: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #1: crashed: KASAN: use-after-free Write in udf_close_lvid
run #2: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #3: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #4: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #5: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #6: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #7: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #8: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #9: crashed: KASAN: use-after-free Write in udf_close_lvid
representative crash: KASAN: use-after-free Read in udf_finalize_lvid, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit fa93fa65db6e232b5f2226dd86c9f066ec6dfd97 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 4722d2d3892ac36587e8afc6c398a3e01cc7a121e3bbcdb1e314ecaec2fd96e7
run #0: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #1: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #2: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #3: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #4: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #5: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #6: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #7: crashed: KASAN: use-after-free Write in udf_close_lvid
run #8: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #9: crashed: KASAN: use-after-free Read in udf_finalize_lvid
representative crash: KASAN: use-after-free Read in udf_finalize_lvid, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit fa93fa65db6e232b5f2226dd86c9f066ec6dfd97 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 4f5dc0b6aded3ac33c290e249487364a18c231ce28ad9c0ade774613641cc64a
all runs: crashed: KASAN: use-after-free Read in udf_finalize_lvid
representative crash: KASAN: use-after-free Read in udf_finalize_lvid, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing commit fa93fa65db6e232b5f2226dd86c9f066ec6dfd97 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: ae0fc11ad0793d9a43ad2401e4752544535b75861fc6cf06b3298758aceae275
run #0: ignore: lost connection to test machine
run #1: ignore: lost connection to test machine
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
false negative chance: 0.000
testing without sub-chunk 5/5
disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit fa93fa65db6e232b5f2226dd86c9f066ec6dfd97 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: d31f59e919d99cb55515e15d2587639d97cd155d0241727f7d601e0a888d7d82
run #0: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #1: crashed: KASAN: use-after-free Write in udf_close_lvid
run #2: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #3: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #4: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #5: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #6: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #7: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #8: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #9: crashed: KASAN: use-after-free Read in udf_finalize_lvid
representative crash: KASAN: use-after-free Read in udf_finalize_lvid, types: [KASAN]
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 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 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_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 VIDEO_V4L2 VXLAN WIRELESS WLAN ZONE_DEVICE]
disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed
testing current HEAD 1c700860e8bc079c5c71d73c55e51865d273943c
testing commit 1c700860e8bc079c5c71d73c55e51865d273943c gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 210346d0fcf4cf42271e8479603794e90b5496a01515d9717762b26d1788970a
run #0: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #1: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #2: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #3: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #4: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #5: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #6: crashed: KASAN: use-after-free Write in udf_close_lvid
run #7: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #8: crashed: KASAN: use-after-free Read in udf_finalize_lvid
run #9: crashed: KASAN: slab-out-of-bounds Read in udf_finalize_lvid
representative crash: KASAN: use-after-free Read in udf_finalize_lvid, types: [KASAN]
crash still not fixed/happens on the oldest tested release
revisions tested: 8, total time: 1h45m35.571157009s (build: 55m6.621440154s, test: 43m22.635193872s)
crash still not fixed or there were kernel test errors
commit msg: Linux 5.15.185
crash: KASAN: use-after-free Read in udf_finalize_lvid
UDF-fs: error (device loop0): udf_read_inode: (ino 817) failed !bh
UDF-fs: error (device loop0): udf_read_inode: (ino 817) failed !bh
==================================================================
BUG: KASAN: use-after-free in crc_itu_t+0x9c/0xc0 lib/crc-itu-t.c:60
Read of size 1 at addr ffff8880651f1000 by task syz-executor/2533

CPU: 0 PID: 2533 Comm: syz-executor Not tainted 5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 __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
 crc_itu_t+0x9c/0xc0 lib/crc-itu-t.c:60
 udf_finalize_lvid+0xdb/0x1d0 fs/udf/super.c:2048
 udf_sync_fs+0xc9/0x130 fs/udf/super.c:2404
 sync_filesystem.part.0+0x63/0x170 fs/sync.c:56
 generic_shutdown_super+0x64/0x3a0 fs/super.c:448
 kill_block_super+0x93/0xd0 fs/super.c:1427
 deactivate_locked_super+0x7b/0x130 fs/super.c:335
 cleanup_mnt+0x2b8/0x3e0 fs/namespace.c:1139
 task_work_run+0xb8/0x140 kernel/task_work.c:188
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0x904/0x2200 kernel/exit.c:874
 do_group_exit+0xe7/0x290 kernel/exit.c:996
 __do_sys_exit_group kernel/exit.c:1007 [inline]
 __se_sys_exit_group kernel/exit.c:1005 [inline]
 __x64_sys_exit_group+0x35/0x40 kernel/exit.c:1005
 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: 0033:0x7f61f7a48eb9
Code: Unable to access opcode bytes at RIP 0x7f61f7a48e8f.
RSP: 002b:00007fffe5b82c58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f61f7ab6801 RCX: 00007f61f7a48eb9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000005 R08: 00007fffe5b809f7 R09: 00007fffe5b83f10
R10: 0000000000000009 R11: 0000000000000246 R12: 00007fffe5b83f10
R13: 00007f61f7ab67dc R14: 000000000001494c R15: 00007fffe5b84fd0
 </TASK>

The buggy address belongs to the page:
page:ffffea0001947c40 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x651f1
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 ffffea00019c7a48 ffffea0001947e08 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 2953, ts 84754120763, free_ts 84759470401
 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:5474
 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:2166 [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:2657
 __do_munmap+0x47e/0x10d0 mm/mmap.c:2887
 __vm_munmap+0xd2/0x1a0 mm/mmap.c:2940
 __do_sys_munmap mm/mmap.c:2966 [inline]
 __se_sys_munmap mm/mmap.c:2962 [inline]
 __x64_sys_munmap+0x5d/0x80 mm/mmap.c:2962
 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:
 ffff8880651f0f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8880651f0f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8880651f1000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                   ^
 ffff8880651f1080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8880651f1100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================