ci2 starts bisection 2025-07-29 17:18:08.466335218 +0000 UTC m=+42120.147049134 bisecting fixing commit since 75cefdf153f582f9d55ff4f9b55778dc95d55f60 building syzkaller on 4c6ac32f33aa00c680c8f4656d1fbf2887f390f1 ensuring issue is reproducible on original commit 75cefdf153f582f9d55ff4f9b55778dc95d55f60 testing commit 75cefdf153f582f9d55ff4f9b55778dc95d55f60 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: d608a42ed3522fc50a72e24a54fe4959558da29262995d7bd5ee192d2d3cc0ea run #0: crashed: KASAN: use-after-free Read in sysv_new_inode run #1: crashed: KASAN: use-after-free Read in sysv_new_block run #2: crashed: KASAN: use-after-free Read in sysv_new_inode run #3: crashed: KASAN: use-after-free Read in sysv_new_block run #4: crashed: KASAN: use-after-free Read in sysv_new_block run #5: crashed: KASAN: use-after-free Read in sysv_new_inode run #6: crashed: KASAN: use-after-free Read in sysv_new_inode run #7: crashed: KASAN: use-after-free Read in sysv_new_inode run #8: crashed: KASAN: use-after-free Read in sysv_new_inode run #9: crashed: KASAN: use-after-free Read in sysv_new_inode run #10: crashed: KASAN: use-after-free Read in sysv_new_inode run #11: crashed: KASAN: use-after-free Read in sysv_new_block run #12: crashed: KASAN: use-after-free Read in sysv_new_inode run #13: crashed: KASAN: use-after-free Read in sysv_new_inode run #14: crashed: KASAN: use-after-free Read in sysv_new_inode run #15: crashed: KASAN: use-after-free Read in sysv_new_inode run #16: crashed: KASAN: use-after-free Read in sysv_new_block run #17: crashed: KASAN: use-after-free Read in sysv_new_inode run #18: crashed: KASAN: use-after-free Read in sysv_new_block run #19: crashed: KASAN: use-after-free Read in sysv_new_inode representative crash: KASAN: use-after-free Read in sysv_new_inode, types: [KASAN-USE-AFTER-FREE-READ] check whether we can drop unnecessary instrumentation disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed testing commit 75cefdf153f582f9d55ff4f9b55778dc95d55f60 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 71fb8e0aba383925b029f4268d29edce0be54792ba52a9a929a60e554ede7ae1 run #0: crashed: KASAN: use-after-free Read in sysv_new_inode run #1: crashed: KASAN: use-after-free Read in sysv_new_inode run #2: crashed: KASAN: use-after-free Read in sysv_new_inode run #3: crashed: KASAN: use-after-free Read in sysv_new_block run #4: crashed: KASAN: use-after-free Read in sysv_new_inode run #5: crashed: KASAN: use-after-free Read in sysv_new_inode run #6: crashed: KASAN: use-after-free Read in sysv_new_inode run #7: crashed: KASAN: use-after-free Read in sysv_new_block run #8: crashed: KASAN: use-after-free Read in sysv_new_inode run #9: crashed: KASAN: use-after-free Read in sysv_new_inode representative crash: KASAN: use-after-free Read in sysv_new_inode, types: [KASAN-USE-AFTER-FREE-READ] the bug reproduces without the instrumentation disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed kconfig minimization: base=3829 full=7500 leaves diff=2071 split chunks (needed=false): <2071> split chunk #0 of len 2071 into 5 parts testing without sub-chunk 1/5 disabling configs for [bug_or_warning locking atomic_sleep hang memleak ubsan], they are not needed testing commit 75cefdf153f582f9d55ff4f9b55778dc95d55f60 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 6659bbc82984cdeaa40e5992937d38fe6b0bd01e5934b236162640090bbb6afd run #0: crashed: KASAN: use-after-free Read in sysv_new_block run #1: crashed: KASAN: use-after-free Read in sysv_new_inode run #2: crashed: KASAN: use-after-free Read in sysv_new_inode run #3: crashed: KASAN: use-after-free Read in sysv_new_block run #4: crashed: KASAN: use-after-free Read in sysv_new_inode run #5: crashed: KASAN: use-after-free Read in sysv_new_inode run #6: crashed: KASAN: use-after-free Read in sysv_new_block run #7: crashed: KASAN: use-after-free Read in sysv_new_block run #8: crashed: KASAN: use-after-free Read in sysv_new_block run #9: crashed: KASAN: use-after-free Read in sysv_new_inode representative crash: KASAN: use-after-free Read in sysv_new_block, types: [KASAN-USE-AFTER-FREE-READ] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [bug_or_warning locking atomic_sleep hang memleak ubsan], they are not needed testing commit 75cefdf153f582f9d55ff4f9b55778dc95d55f60 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: c4e17ebe5f9a20e2972b4876e60c3e49a127edd29dc8ede8cd6dd5d998e0fb11 run #0: crashed: KASAN: use-after-free Read in sysv_new_inode run #1: crashed: KASAN: use-after-free Read in sysv_new_inode run #2: crashed: KASAN: use-after-free Read in sysv_new_block run #3: crashed: KASAN: use-after-free Read in sysv_new_block run #4: crashed: KASAN: use-after-free Read in sysv_new_inode run #5: crashed: KASAN: use-after-free Read in sysv_new_inode run #6: crashed: KASAN: use-after-free Read in sysv_new_inode run #7: crashed: KASAN: use-after-free Read in sysv_new_inode run #8: crashed: KASAN: use-after-free Read in sysv_new_inode run #9: crashed: KASAN: use-after-free Read in sysv_new_inode representative crash: KASAN: use-after-free Read in sysv_new_inode, types: [KASAN-USE-AFTER-FREE-READ] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed testing commit 75cefdf153f582f9d55ff4f9b55778dc95d55f60 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 2af26dc13a9edb8e2189b51304dee738b6e33668a5995124ab9b8fd6d8cb237d run #0: crashed: KASAN: use-after-free Read in sysv_new_inode run #1: crashed: KASAN: use-after-free Read in sysv_new_block run #2: crashed: KASAN: use-after-free Read in sysv_new_block run #3: crashed: KASAN: use-after-free Read in sysv_new_block run #4: crashed: KASAN: use-after-free Read in sysv_new_inode run #5: crashed: KASAN: use-after-free Read in sysv_new_inode run #6: crashed: KASAN: use-after-free Read in sysv_new_block run #7: crashed: KASAN: use-after-free Read in sysv_new_block run #8: crashed: KASAN: use-after-free Read in sysv_new_inode run #9: crashed: KASAN: use-after-free Read in sysv_new_inode representative crash: KASAN: use-after-free Read in sysv_new_inode, types: [KASAN-USE-AFTER-FREE-READ] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ubsan bug_or_warning locking atomic_sleep hang memleak], they are not needed testing commit 75cefdf153f582f9d55ff4f9b55778dc95d55f60 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 2f4fa35dec7d38dff83229d6ab31336c8b1567d6455362acca2524bd3466d75e all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [hang memleak ubsan bug_or_warning locking atomic_sleep], they are not needed testing commit 75cefdf153f582f9d55ff4f9b55778dc95d55f60 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 7ce87128a33aa74449c6ed857801acbd6b6e508f01aaaca9785a9282fdb76d16 run #0: crashed: KASAN: use-after-free Read in sysv_new_inode run #1: crashed: KASAN: use-after-free Read in sysv_new_block run #2: crashed: KASAN: use-after-free Read in sysv_new_inode run #3: crashed: KASAN: use-after-free Read in sysv_new_inode run #4: crashed: KASAN: use-after-free Read in sysv_new_inode run #5: crashed: KASAN: use-after-free Read in sysv_new_inode run #6: crashed: KASAN: use-after-free Read in sysv_new_block run #7: crashed: KASAN: use-after-free Read in sysv_new_block run #8: crashed: KASAN: use-after-free Read in sysv_new_inode run #9: crashed: KASAN: use-after-free Read in sysv_new_inode representative crash: KASAN: use-after-free Read in sysv_new_inode, types: [KASAN-USE-AFTER-FREE-READ] the chunk can be dropped minimized to 415 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ATM AX25 BXT_WC_PMIC_OPREGION CFG80211 CMA DAX DLM DRM DVB_CORE ENCRYPTED_KEYS EXTCON GENEVE GPIOLIB HAMRADIO HAVE_CLK 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 LEDS_CLASS_MULTICOLOR LIBNVDIMM MAC80211 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_MT6370 MFD_RETU MMC MTD MTD_UBI NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 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_BTF_TAG PAHOLE_HAS_LANG_EXCLUDE 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 PLFXLC PMIC_OPREGION 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 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 SENSORS_NZXT_SMART2 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 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_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_ANX7411 TYPEC_DP_ALTMODE TYPEC_FUSB302 TYPEC_HD3SS3220 TYPEC_MT6360 TYPEC_MUX_FSA4480 TYPEC_MUX_INTEL_PMC TYPEC_NVIDIA_ALTMODE TYPEC_RT1711H TYPEC_RT1719 TYPEC_STUSB160X TYPEC_TCPCI TYPEC_TCPCI_MAXIM TYPEC_TCPCI_MT6370 TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI TYPEC_WCOVE TYPEC_WUSB3801 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 UCSI_STM32G0 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_MSM USB_CHIPIDEA_PCI USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM 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 WLAN_VENDOR_PURELIFI ZONE_DEVICE] disabling configs for [hang memleak ubsan bug_or_warning locking atomic_sleep], they are not needed testing current HEAD 3594f306da129190de25938b823f353ef7f9e322 testing commit 3594f306da129190de25938b823f353ef7f9e322 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: a68a03718f158ddae5c9c33bc5ab44ec9f1aca1dfc25458f2f22fa72c2ce6d7a run #0: crashed: KASAN: use-after-free Read in sysv_new_inode run #1: crashed: KASAN: use-after-free Read in sysv_new_block run #2: crashed: KASAN: use-after-free Read in sysv_new_inode run #3: crashed: KASAN: use-after-free Read in sysv_new_block run #4: crashed: KASAN: use-after-free Read in sysv_new_inode run #5: crashed: KASAN: use-after-free Read in sysv_new_inode run #6: crashed: KASAN: use-after-free Read in sysv_new_inode run #7: crashed: KASAN: use-after-free Read in sysv_new_block run #8: crashed: KASAN: use-after-free Read in sysv_new_block run #9: crashed: KASAN: use-after-free Read in sysv_new_inode representative crash: KASAN: use-after-free Read in sysv_new_inode, types: [KASAN-USE-AFTER-FREE-READ] crash still not fixed/happens on the oldest tested release revisions tested: 8, total time: 2h36m44.212807223s (build: 1h54m44.507000789s, test: 38m13.107018579s) crash still not fixed or there were kernel test errors commit msg: Linux 6.1.147 crash: KASAN: use-after-free Read in sysv_new_inode loop3: rw=0, sector=6491536, nr_sectors = 2 limit=128 Buffer I/O error on dev loop3, logical block 3245768, async page read ================================================================== BUG: KASAN: use-after-free in sysv_new_inode+0xf09/0x10a0 fs/sysv/ialloc.c:153 Read of size 2 at addr ffff88806affe1ce by task syz.3.16/3080 CPU: 0 PID: 3080 Comm: syz.3.16 Not tainted 6.1.147-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace: dump_stack_lvl+0xdc/0x15b lib/dump_stack.c:106 print_address_description mm/kasan/report.c:316 [inline] print_report+0xa8/0x200 mm/kasan/report.c:418 kasan_report+0x10b/0x140 mm/kasan/report.c:522 sysv_new_inode+0xf09/0x10a0 fs/sysv/ialloc.c:153 sysv_symlink+0x83/0x110 fs/sysv/namei.c:80 vfs_symlink+0x202/0x3a0 fs/namei.c:4471 do_symlinkat+0x185/0x390 fs/namei.c:4500 __do_sys_symlink fs/namei.c:4522 [inline] __se_sys_symlink fs/namei.c:4520 [inline] __x64_sys_symlink+0x75/0x80 fs/namei.c:4520 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fabebf8cda9 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:00007fabecec7038 EFLAGS: 00000246 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 00007fabec1a5fa0 RCX: 00007fabebf8cda9 RDX: 0000000000000000 RSI: 000000002000acc0 RDI: 000000002000ad80 RBP: 00007fabec00e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fabec1a5fa0 R15: 00007fff08e1a018 The buggy address belongs to the physical page: page:ffffea0001abff80 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x6affe flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 ffffea00019018c8 ffffea0001900348 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 0x140cca(GFP_HIGHUSER_MOVABLE|__GFP_COMP), pid 2795, tgid 2795 (modprobe), ts 80998239561, free_ts 81007766551 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x257/0x280 mm/page_alloc.c:2532 prep_new_page mm/page_alloc.c:2539 [inline] get_page_from_freelist+0x2ce1/0x2e20 mm/page_alloc.c:4328 __alloc_pages+0x1df/0x420 mm/page_alloc.c:5614 __folio_alloc+0xe/0x30 mm/page_alloc.c:5646 vma_alloc_folio+0x482/0x9d0 mm/mempolicy.c:2243 alloc_page_vma include/linux/gfp.h:284 [inline] do_cow_fault mm/memory.c:4650 [inline] do_fault mm/memory.c:4762 [inline] handle_pte_fault mm/memory.c:5031 [inline] __handle_mm_fault mm/memory.c:5173 [inline] handle_mm_fault+0x18da/0x3470 mm/memory.c:5294 do_user_addr_fault+0x2ff/0x6e0 arch/x86/mm/fault.c:1340 handle_page_fault arch/x86/mm/fault.c:1431 [inline] exc_page_fault+0x4e/0xb0 arch/x86/mm/fault.c:1487 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:608 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1459 [inline] free_pcp_prepare mm/page_alloc.c:1509 [inline] free_unref_page_prepare+0x821/0x8f0 mm/page_alloc.c:3384 free_unref_page_list+0xb8/0x810 mm/page_alloc.c:3525 release_pages+0x1447/0x15d0 mm/swap.c:1035 tlb_batch_pages_flush mm/mmu_gather.c:59 [inline] tlb_flush_mmu_free mm/mmu_gather.c:254 [inline] tlb_flush_mmu+0xe8/0x1d0 mm/mmu_gather.c:261 tlb_finish_mmu+0xa4/0x180 mm/mmu_gather.c:361 exit_mmap+0x2bf/0x650 mm/mmap.c:3258 __mmput+0x9d/0x2d0 kernel/fork.c:1200 exit_mm+0x12a/0x1b0 kernel/exit.c:565 do_exit+0x66b/0x1f50 kernel/exit.c:867 do_group_exit+0x1ac/0x270 kernel/exit.c:1022 __do_sys_exit_group kernel/exit.c:1033 [inline] __se_sys_exit_group kernel/exit.c:1031 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1031 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 Memory state around the buggy address: ffff88806affe080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88806affe100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff88806affe180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff88806affe200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88806affe280: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================