ci2 starts bisection 2024-11-10 01:06:23.322152758 +0000 UTC m=+114366.553393566 bisecting fixing commit since 883d1a9562083922c6d293e9adad8cca4626adf3 building syzkaller on cc4a4020ecb6d62110981f597feea0c04a643efa ensuring issue is reproducible on original commit 883d1a9562083922c6d293e9adad8cca4626adf3 testing commit 883d1a9562083922c6d293e9adad8cca4626adf3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b683260c81c8ad28eb8dab8157e54d7f2f206a62a8390bcc70b53ccf8a4274ee run #0: crashed: possible deadlock in vm_mmap_pgoff run #1: crashed: possible deadlock in vm_mmap_pgoff run #2: crashed: possible deadlock in vm_mmap_pgoff run #3: crashed: possible deadlock in vm_mmap_pgoff run #4: crashed: possible deadlock in vm_mmap_pgoff run #5: crashed: possible deadlock in vm_mmap_pgoff run #6: crashed: possible deadlock in vm_mmap_pgoff run #7: crashed: possible deadlock in vm_mmap_pgoff run #8: crashed: possible deadlock in vm_mmap_pgoff run #9: crashed: possible deadlock in vm_mmap_pgoff run #10: crashed: possible deadlock in vm_mmap_pgoff run #11: crashed: possible deadlock in vm_mmap_pgoff run #12: crashed: possible deadlock in vm_mmap_pgoff run #13: crashed: possible deadlock in vm_mmap_pgoff run #14: crashed: possible deadlock in vm_mmap_pgoff run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: possible deadlock in vm_mmap_pgoff, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [LEAK UBSAN BUG KASAN ATOMIC_SLEEP HANG], they are not needed testing commit 883d1a9562083922c6d293e9adad8cca4626adf3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 35911cb1c41a1695bfe20a5cc289dc7bae2c291bbcd8af12d18049b774896f10 all runs: OK false negative chance: 0.000 kconfig minimization: base=3824 full=7526 leaves diff=1998 split chunks (needed=false): <1998> split chunk #0 of len 1998 into 5 parts testing without sub-chunk 1/5 testing commit 883d1a9562083922c6d293e9adad8cca4626adf3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9cfb2387eb43cf0ac30fde9a3c556a67f71b29c57877b0b079182f38ce1d7ccd run #0: crashed: possible deadlock in vm_mmap_pgoff run #1: crashed: possible deadlock in vm_mmap_pgoff run #2: crashed: possible deadlock in vm_mmap_pgoff run #3: crashed: possible deadlock in vm_mmap_pgoff run #4: crashed: possible deadlock in vm_mmap_pgoff run #5: crashed: possible deadlock in vm_mmap_pgoff run #6: crashed: possible deadlock in vm_mmap_pgoff run #7: crashed: possible deadlock in vm_mmap_pgoff run #8: OK run #9: OK representative crash: possible deadlock in vm_mmap_pgoff, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 2/5 testing commit 883d1a9562083922c6d293e9adad8cca4626adf3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 619c97e6b693be147a2115e47bdb996fe19cfb65fc45f71b3b6fb8fbdcddde41 run #0: crashed: possible deadlock in vm_mmap_pgoff run #1: crashed: possible deadlock in vm_mmap_pgoff run #2: crashed: possible deadlock in vm_mmap_pgoff run #3: crashed: possible deadlock in vm_mmap_pgoff run #4: crashed: possible deadlock in vm_mmap_pgoff run #5: crashed: possible deadlock in vm_mmap_pgoff run #6: crashed: possible deadlock in vm_mmap_pgoff run #7: OK run #8: OK run #9: OK representative crash: possible deadlock in vm_mmap_pgoff, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 3/5 testing commit 883d1a9562083922c6d293e9adad8cca4626adf3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1f253ec3e50c7500dfa92876539614d485a2473f78d43af176d05f0080062687 run #0: crashed: possible deadlock in vm_mmap_pgoff run #1: crashed: possible deadlock in vm_mmap_pgoff run #2: crashed: possible deadlock in vm_mmap_pgoff run #3: crashed: possible deadlock in vm_mmap_pgoff run #4: crashed: possible deadlock in vm_mmap_pgoff run #5: crashed: possible deadlock in vm_mmap_pgoff run #6: crashed: possible deadlock in vm_mmap_pgoff run #7: OK run #8: OK run #9: OK representative crash: possible deadlock in vm_mmap_pgoff, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 4/5 testing commit 883d1a9562083922c6d293e9adad8cca4626adf3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 80ab51607462a05becbd20f76f2e42fa0fcef133da94d64378380480071fb02f all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 testing commit 883d1a9562083922c6d293e9adad8cca4626adf3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 86db48f6d19f5c4ebda28b8f4e318c45e985d1354f787f1725bb293aa7c76803 run #0: crashed: possible deadlock in vm_mmap_pgoff run #1: crashed: possible deadlock in vm_mmap_pgoff run #2: crashed: possible deadlock in vm_mmap_pgoff run #3: crashed: possible deadlock in vm_mmap_pgoff run #4: crashed: possible deadlock in vm_mmap_pgoff run #5: crashed: possible deadlock in vm_mmap_pgoff run #6: crashed: possible deadlock in vm_mmap_pgoff run #7: OK run #8: OK run #9: OK representative crash: possible deadlock in vm_mmap_pgoff, types: [LOCKDEP] the chunk can be dropped minimized to 400 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 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_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 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 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 SPECULATION_MITIGATIONS 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 TARGET_CORE 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_CONFIGFS_F_MIDI USB_CONFIGFS_F_PRINTER USB_CONFIGFS_F_TCM 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] testing current HEAD d7039b844a1c0817aef0c66c2f87cd6b29fbd29e testing commit d7039b844a1c0817aef0c66c2f87cd6b29fbd29e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 16cfcc9c45065b805f44e9fa21e34689b9c990d8941cba017d0a79f0a6b5d411 run #0: crashed: possible deadlock in vm_mmap_pgoff run #1: crashed: possible deadlock in vm_mmap_pgoff run #2: crashed: possible deadlock in vm_mmap_pgoff run #3: crashed: possible deadlock in vm_mmap_pgoff run #4: crashed: possible deadlock in vm_mmap_pgoff run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: possible deadlock in vm_mmap_pgoff, types: [LOCKDEP] crash still not fixed/happens on the oldest tested release revisions tested: 8, total time: 2h13m24.755058074s (build: 32m41.476917491s, test: 1h37m15.865357744s) crash still not fixed or there were kernel test errors commit msg: Linux 6.1.116 crash: possible deadlock in vm_mmap_pgoff REISERFS warning (device loop0): vs-13060 reiserfs_update_sd_size: stat data of object [1 2 0x0 SD] (nlink == 4) not found (pos 2) REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. ====================================================== WARNING: possible circular locking dependency detected 6.1.116-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.0/2890 is trying to acquire lock: ffff88800e7bc090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x6c/0xc0 fs/reiserfs/lock.c:27 but task is already holding lock: ffff88800a46d858 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock_killable include/linux/mmap_lock.h:87 [inline] ffff88800a46d858 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x17c/0x280 mm/util.c:518 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&mm->mmap_lock){++++}-{3:3}: lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662 __might_fault+0xa2/0xf0 mm/memory.c:5851 reiserfs_ioctl+0xe8/0x2b0 fs/reiserfs/ioctl.c:96 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xa7/0xf0 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0x80 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 -> #0 (&sbi->lock){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3090 [inline] check_prevs_add kernel/locking/lockdep.c:3209 [inline] validate_chain+0x1661/0x5950 kernel/locking/lockdep.c:3825 __lock_acquire+0x125b/0x1f80 kernel/locking/lockdep.c:5049 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662 __mutex_lock_common kernel/locking/mutex.c:603 [inline] __mutex_lock+0x132/0xd80 kernel/locking/mutex.c:747 reiserfs_write_lock+0x6c/0xc0 fs/reiserfs/lock.c:27 reiserfs_dirty_inode+0xd8/0x1f0 fs/reiserfs/super.c:704 __mark_inode_dirty+0x22d/0xae0 fs/fs-writeback.c:2433 generic_update_time fs/inode.c:1942 [inline] inode_update_time fs/inode.c:1955 [inline] touch_atime+0x324/0x500 fs/inode.c:2027 file_accessed include/linux/fs.h:2600 [inline] generic_file_mmap+0x9e/0xf0 mm/filemap.c:3546 call_mmap include/linux/fs.h:2270 [inline] mmap_region+0xc23/0x17c0 mm/mmap.c:2763 do_mmap+0x6a6/0xb70 mm/mmap.c:1425 vm_mmap_pgoff+0x1b7/0x280 mm/util.c:520 ksys_mmap_pgoff+0x428/0x5c0 mm/mmap.c:1471 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0x80 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&mm->mmap_lock); lock(&sbi->lock); lock(&mm->mmap_lock); lock(&sbi->lock); *** DEADLOCK *** 2 locks held by syz-executor.0/2890: #0: ffff88800a46d858 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock_killable include/linux/mmap_lock.h:87 [inline] #0: ffff88800a46d858 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x17c/0x280 mm/util.c:518 #1: ffff888011f5a448 (sb_writers#13){.+.+}-{0:0}, at: file_accessed include/linux/fs.h:2600 [inline] #1: ffff888011f5a448 (sb_writers#13){.+.+}-{0:0}, at: generic_file_mmap+0x9e/0xf0 mm/filemap.c:3546 stack backtrace: CPU: 1 PID: 2890 Comm: syz-executor.0 Not tainted 6.1.116-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x163/0x213 lib/dump_stack.c:106 check_noncircular+0x2fa/0x3b0 kernel/locking/lockdep.c:2170 check_prev_add kernel/locking/lockdep.c:3090 [inline] check_prevs_add kernel/locking/lockdep.c:3209 [inline] validate_chain+0x1661/0x5950 kernel/locking/lockdep.c:3825 __lock_acquire+0x125b/0x1f80 kernel/locking/lockdep.c:5049 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662 __mutex_lock_common kernel/locking/mutex.c:603 [inline] __mutex_lock+0x132/0xd80 kernel/locking/mutex.c:747 reiserfs_write_lock+0x6c/0xc0 fs/reiserfs/lock.c:27 reiserfs_dirty_inode+0xd8/0x1f0 fs/reiserfs/super.c:704 __mark_inode_dirty+0x22d/0xae0 fs/fs-writeback.c:2433 generic_update_time fs/inode.c:1942 [inline] inode_update_time fs/inode.c:1955 [inline] touch_atime+0x324/0x500 fs/inode.c:2027 file_accessed include/linux/fs.h:2600 [inline] generic_file_mmap+0x9e/0xf0 mm/filemap.c:3546 call_mmap include/linux/fs.h:2270 [inline] mmap_region+0xc23/0x17c0 mm/mmap.c:2763 do_mmap+0x6a6/0xb70 mm/mmap.c:1425 vm_mmap_pgoff+0x1b7/0x280 mm/util.c:520 ksys_mmap_pgoff+0x428/0x5c0 mm/mmap.c:1471 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0x80 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fec9287cda9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fec923ff0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fec929abf80 RCX: 00007fec9287cda9 RDX: 0000000000000001 RSI: 0000000000003000 RDI: 0000000020000000 RBP: 00007fec928c947a R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000010012 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007fec929abf80 R15: 00007ffde630c848