ci2 starts bisection 2025-05-29 20:50:37.211366773 +0000 UTC m=+104227.339243666 bisecting fixing commit since 584a40a22cb9bf5a03135869f11c3106b6200453 building syzkaller on cd6fc0a3018e5d793bdcca6530622493f5e88307 ensuring issue is reproducible on original commit 584a40a22cb9bf5a03135869f11c3106b6200453 testing commit 584a40a22cb9bf5a03135869f11c3106b6200453 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8c76feedd03f4b65784e2ec48a6aed57546e62432ba75f6403d2dbbcd3a44a41 run #0: crashed: KASAN: use-after-free Write in inode2sd run #1: crashed: KASAN: use-after-free Write in inode2sd run #2: crashed: KASAN: use-after-free Write in inode2sd run #3: crashed: KASAN: use-after-free Write in inode2sd run #4: crashed: KASAN: use-after-free Write in inode2sd run #5: crashed: KASAN: use-after-free Write in inode2sd run #6: crashed: KASAN: use-after-free Write in inode2sd run #7: crashed: KASAN: use-after-free Write in inode2sd run #8: crashed: KASAN: use-after-free Write in inode2sd run #9: crashed: KASAN: use-after-free Write in inode2sd run #10: crashed: KASAN: use-after-free Write in inode2sd run #11: crashed: KASAN: use-after-free Write in inode2sd run #12: crashed: KASAN: use-after-free Write in inode2sd run #13: crashed: KASAN: use-after-free Write in inode2sd run #14: crashed: KASAN: use-after-free Write in inode2sd run #15: crashed: KASAN: use-after-free Write in inode2sd run #16: crashed: KASAN: use-after-free Write in inode2sd run #17: OK run #18: OK run #19: OK representative crash: KASAN: use-after-free Write in inode2sd, types: [KASAN] check whether we can drop unnecessary instrumentation disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 584a40a22cb9bf5a03135869f11c3106b6200453 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dfccb81ee5a931bb8a674b7a80945b72cb606b5b7a0b81a7c7c469a21d1ec7c8 run #0: crashed: KASAN: use-after-free Write in inode2sd run #1: crashed: KASAN: use-after-free Write in inode2sd run #2: crashed: KASAN: use-after-free Write in inode2sd run #3: crashed: KASAN: use-after-free Write in inode2sd run #4: crashed: KASAN: use-after-free Write in inode2sd run #5: crashed: KASAN: use-after-free Write in inode2sd run #6: crashed: KASAN: use-after-free Write in inode2sd run #7: crashed: KASAN: use-after-free Write in inode2sd run #8: crashed: KASAN: use-after-free Write in inode2sd run #9: OK representative crash: KASAN: use-after-free Write in inode2sd, types: [KASAN] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=3707 full=7302 leaves diff=2039 split chunks (needed=false): <2039> split chunk #0 of len 2039 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 584a40a22cb9bf5a03135869f11c3106b6200453 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e6d7d2ba17c3f3814f00d63e3ff5cd46c8a72e500dad6b8de084515364abcc36 run #0: crashed: KASAN: use-after-free Write in inode2sd run #1: crashed: KASAN: use-after-free Write in inode2sd run #2: crashed: KASAN: use-after-free Write in inode2sd run #3: crashed: KASAN: use-after-free Write in inode2sd run #4: crashed: KASAN: use-after-free Write in inode2sd run #5: crashed: KASAN: use-after-free Write in inode2sd run #6: crashed: KASAN: use-after-free Write in inode2sd run #7: crashed: KASAN: use-after-free Write in inode2sd run #8: OK run #9: OK representative crash: KASAN: use-after-free Write in inode2sd, types: [KASAN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 584a40a22cb9bf5a03135869f11c3106b6200453 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8db4106e89391c7f00a235d21b0c21ec30a70d0316fab2785e4506dbd049fb04 run #0: crashed: KASAN: use-after-free Write in inode2sd run #1: crashed: KASAN: use-after-free Write in inode2sd run #2: crashed: KASAN: use-after-free Write in inode2sd run #3: crashed: KASAN: use-after-free Write in inode2sd run #4: crashed: KASAN: use-after-free Write in inode2sd run #5: crashed: KASAN: use-after-free Write in inode2sd run #6: crashed: KASAN: use-after-free Write in inode2sd run #7: crashed: KASAN: use-after-free Write in inode2sd run #8: crashed: KASAN: use-after-free Write in inode2sd run #9: OK representative crash: KASAN: use-after-free Write in inode2sd, types: [KASAN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 584a40a22cb9bf5a03135869f11c3106b6200453 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3fa644142780bffc8ac80e5084e8095debbcf5ffe4aed0a28b93cac25be33387 run #0: crashed: KASAN: use-after-free Write in inode2sd run #1: crashed: KASAN: use-after-free Write in inode2sd run #2: crashed: KASAN: use-after-free Write in inode2sd run #3: crashed: KASAN: use-after-free Write in inode2sd run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: KASAN: use-after-free Write in inode2sd, types: [KASAN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 584a40a22cb9bf5a03135869f11c3106b6200453 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4d083c0f4cd1082e637dc4cb5fef1e61f9eac8b9b3cf26305ca6c5b30f99c274 all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 584a40a22cb9bf5a03135869f11c3106b6200453 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dc8f4381a458c0cfd2a5a789d4edc3d6000e8d3a4eb86d1846df76ce3cacda8a run #0: crashed: KASAN: use-after-free Write in inode2sd run #1: crashed: KASAN: use-after-free Write in inode2sd run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: crashed: KASAN: use-after-free Write in inode2sd run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: use-after-free Write in inode2sd, types: [KASAN] minimized to 815 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ASYMMETRIC_TPM_KEY_SUBTYPE ATM AX25 BCMA BLK_DEV_ZONED BPF_SYSCALL BXT_WC_PMIC_OPREGION CARDBUS CFG80211 CFG80211_WEXT CMA CONTIG_ALLOC CRYPTO_842 CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_LZO CRYPTO_ZSTD DAX DLM DVB_CORE ENCRYPTED_KEYS EXTCON FB FRONTSWAP GENEVE GPIOLIB HAMRADIO HID_PLAYSTATION HID_SENSOR_HUB HID_SMARTJOYPLUS HID_THRUSTMASTER HID_ZEROPLUS I2C_MUX 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 IRQ_REMAP L2TP LIBCRC32C LIBNVDIMM MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_COMMON_OPTIONS MEDIA_CONTROLLER MEDIA_DIGITAL_TV_SUPPORT MEDIA_PLATFORM_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTPLUG_SPARSE MEMORY_HOTREMOVE MFD_DLN2 MFD_INTEL_PMC_BXT MFD_MT6360 MFD_RETU MFD_VIPERBOARD 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 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_SI470X RADIO_SI4713 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 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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 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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_CONFIGFS_F_MIDI USB_CONFIGFS_F_PRINTER USB_CONFIGFS_F_TCM USB_CONFIGFS_F_UAC1 USB_CONFIGFS_F_UAC1_LEGACY USB_CONFIGFS_F_UAC2 USB_CONFIGFS_F_UVC USB_CONFIGFS_MASS_STORAGE USB_CONFIGFS_NCM USB_CONFIGFS_OBEX USB_CONFIGFS_PHONET USB_CONFIGFS_RNDIS USB_CONFIGFS_SERIAL USB_CONN_GPIO USB_CXACRU USB_CYPRESS_CY7C63 USB_CYTHERM USB_DSBR USB_DUMMY_HCD USB_DWC2 USB_DWC2_HOST USB_DWC2_PCI USB_DWC3 USB_DWC3_GADGET USB_DWC3_HAPS USB_DWC3_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI USB_DYNAMIC_MINORS USB_EG20T USB_EHCI_FSL USB_EHCI_HCD_PLATFORM USB_EHCI_ROOT_HUB_TT USB_EHSET_TEST_FIXTURE USB_EMI26 USB_EMI62 USB_EPSON2888 USB_EZUSB_FX2 USB_FEW_INIT_RETRIES USB_FOTG210_HCD USB_FOTG210_UDC USB_FTDI_ELAN USB_F_ACM USB_F_ECM USB_F_EEM USB_F_FS USB_F_HID USB_F_MASS_STORAGE USB_F_MIDI USB_F_NCM USB_F_OBEX USB_F_PHONET USB_F_PRINTER 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VIDEO_PVRUSB2_SYSFS VIDEO_SAA711X VIDEO_STK1160 VIDEO_STK1160_COMMON VIDEO_TM6000 VIDEO_TM6000_ALSA VIDEO_TM6000_DVB VIDEO_TUNER VIDEO_TVEEPROM VIDEO_USBTV VIDEO_V4L2 VIDEO_V4L2_I2C VIDEO_V4L2_SUBDEV_API VIDEO_V4L2_TPG VIDEO_VICODEC VIDEO_VIM2M VIDEO_VIMC VIDEO_VIVID VIDEO_VIVID_CEC VIDEO_WM8775 VIPERBOARD_ADC VIRTIO_BALLOON VIRTIO_DMA_SHARED_BUFFER VIRTIO_MEM VIRTIO_MMIO VIRTIO_MMIO_CMDLINE_DEVICES VIRTIO_PMEM VIRTIO_VDPA VIRTIO_VSOCKETS VIRTIO_VSOCKETS_COMMON VIRT_WIFI VLAN_8021Q VLAN_8021Q_GVRP VLAN_8021Q_MVRP VMAP_PFN VMWARE_VMCI VMXNET3 VP_VDPA VSOCKETS VSOCKETS_DIAG VSOCKETS_LOOPBACK VSOCKMON VT_HW_CONSOLE_BINDING VXFS_FS VXLAN WANT_DEV_COREDUMP WEXT_CORE WEXT_PRIV WEXT_PROC WIREGUARD WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ADMTEK X86_SGX X86_X2APIC X86_X32 XARRAY_MULTI XDP_SOCKETS XDP_SOCKETS_DIAG XFRM_ESPINTCP XFRM_INTERFACE XFRM_IPCOMP XFRM_MIGRATE XFRM_OFFLOAD XFRM_STATISTICS XFRM_SUB_POLICY XFRM_USER_COMPAT XFS_FS XFS_POSIX_ACL XFS_QUOTA XFS_RT XILLYBUS_CLASS XILLYUSB XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZBUD ZEROPLUS_FF ZONEFS_FS ZONE_DEVICE ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZBUD] disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing current HEAD 98f47d0e9b8c557d3063d3ea661cbea1489af330 testing commit 98f47d0e9b8c557d3063d3ea661cbea1489af330 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f98289b21927cc1673b5615fca8fc81098af8ab47722207190ba58b01cadad9e run #0: crashed: KASAN: use-after-free Write in inode2sd run #1: crashed: KASAN: use-after-free Write in inode2sd run #2: crashed: KASAN: use-after-free Write in inode2sd run #3: crashed: KASAN: use-after-free Write in inode2sd run #4: crashed: KASAN: use-after-free Write in inode2sd run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: use-after-free Write in inode2sd, types: [KASAN] crash still not fixed/happens on the oldest tested release reproducer is flaky (0.40 repro chance estimate) revisions tested: 8, total time: 2h35m12.042624066s (build: 29m4.021347583s, test: 2h3m42.109354335s) crash still not fixed or there were kernel test errors commit msg: Linux 5.15.184 crash: KASAN: use-after-free Write in inode2sd ================================================================== BUG: KASAN: use-after-free in inode2sd+0x924/0x990 fs/reiserfs/inode.c:1378 Write of size 2 at addr ffff888065fb4648 by task syz.4.917/7438 CPU: 1 PID: 7438 Comm: syz.4.917 Not tainted 5.15.184-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 inode2sd+0x924/0x990 fs/reiserfs/inode.c:1378 update_stat_data fs/reiserfs/inode.c:1439 [inline] reiserfs_update_sd_size+0x632/0xa80 fs/reiserfs/inode.c:1505 reiserfs_update_sd fs/reiserfs/reiserfs.h:3099 [inline] reiserfs_do_truncate+0x71e/0xea0 fs/reiserfs/stree.c:2036 reiserfs_truncate_file+0x179/0xa20 fs/reiserfs/inode.c:2318 reiserfs_setattr+0x877/0xd20 fs/reiserfs/inode.c:3409 notify_change+0x4b4/0xea0 fs/attr.c:505 do_truncate+0xee/0x1a0 fs/open.c:65 handle_truncate fs/namei.c:3265 [inline] do_open fs/namei.c:3612 [inline] path_openat+0x173d/0x2360 fs/namei.c:3742 do_filp_open+0x199/0x3d0 fs/namei.c:3769 do_sys_openat2+0x11e/0x400 fs/open.c:1253 do_sys_open fs/open.c:1269 [inline] __do_sys_creat fs/open.c:1345 [inline] __se_sys_creat fs/open.c:1339 [inline] __x64_sys_creat+0xc3/0x110 fs/open.c:1339 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x33/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f0922cb2ff9 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:00007f0922734038 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007f0922e6af80 RCX: 00007f0922cb2ff9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000940 RBP: 00007f0922d25296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f0922e6af80 R15: 00007fff2133cd68 The buggy address belongs to the page: page:ffffea000197ed00 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x65fb4 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 ffffea00018a5ec8 ffffea00018aa448 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 0x1100cca(GFP_HIGHUSER_MOVABLE), pid 7409, ts 250770485870, free_ts 251610939601 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:5466 alloc_pages_vma+0xe0/0x650 mm/mempolicy.c:2146 shmem_alloc_page+0x111/0x1c0 mm/shmem.c:1586 shmem_alloc_and_acct_page+0xff/0x730 mm/shmem.c:1611 shmem_getpage_gfp+0x4d1/0x19b0 mm/shmem.c:1906 shmem_getpage mm/shmem.c:151 [inline] shmem_write_begin+0xcc/0x1a0 mm/shmem.c:2474 generic_perform_write+0x1d6/0x430 mm/filemap.c:3785 __generic_file_write_iter+0x2f0/0x560 mm/filemap.c:3912 generic_file_write_iter+0xb9/0x1c0 mm/filemap.c:3944 call_write_iter include/linux/fs.h:2172 [inline] new_sync_write+0x35d/0x5f0 fs/read_write.c:507 vfs_write+0x577/0x7e0 fs/read_write.c:594 ksys_write+0xf4/0x1d0 fs/read_write.c:647 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x33/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 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 __pagevec_release+0x59/0xe0 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] shmem_undo_range+0x507/0xec0 mm/shmem.c:964 shmem_truncate_range mm/shmem.c:1063 [inline] shmem_evict_inode+0x313/0xa40 mm/shmem.c:1145 evict+0x322/0x770 fs/inode.c:647 __dentry_kill+0x315/0x5e0 fs/dcache.c:586 __fput+0x2f1/0x9a0 fs/file_table.c:319 task_work_run+0xb8/0x140 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:181 [inline] exit_to_user_mode_prepare+0x15d/0x160 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x12/0x30 kernel/entry/common.c:307 do_syscall_64+0x40/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 Memory state around the buggy address: ffff888065fb4500: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff888065fb4580: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff888065fb4600: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff888065fb4680: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff888065fb4700: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================