ci2 starts bisection 2023-09-14 02:07:27.95462965 +0000 UTC m=+64179.983803753 bisecting fixing commit since 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 building syzkaller on f325deb023e4e2fb9197004be1b3da738680429c ensuring issue is reproducible on original commit 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 testing commit 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0d0361806a289685f359d0950642d59f765bd0369a4e583e48f20a6d28e5ae78 all runs: crashed: KASAN: use-after-free Write in xfs_trans_committed_bulk representative crash: KASAN: use-after-free Write in xfs_trans_committed_bulk, types: [KASAN] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f25a2f4df8b6eb2a27aa31ccc627bd725a86c56bf82cfd4007639f86d9c383db all runs: crashed: KASAN: use-after-free Write in xfs_trans_committed_bulk representative crash: KASAN: use-after-free Write in xfs_trans_committed_bulk, types: [KASAN] the bug reproduces without the instrumentation disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed kconfig minimization: base=3703 full=7269 leaves diff=1979 split chunks (needed=false): <1979> split chunk #0 of len 1979 into 5 parts testing without sub-chunk 1/5 disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 52d2536aea01ad56e994f685cd6f3cab281959d5fb2546eeea0c23156166fe14 all runs: crashed: KASAN: use-after-free Write in xfs_trans_committed_bulk representative crash: KASAN: use-after-free Write in xfs_trans_committed_bulk, types: [KASAN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8448fc26f3631c9ff0e7c6981461b02855dc22ba262d77fd831c91bc7af2f189 all runs: crashed: KASAN: use-after-free Write in xfs_trans_committed_bulk representative crash: KASAN: use-after-free Write in xfs_trans_committed_bulk, 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 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5ab9b6c562d2e90dcdf1c02deb13f3eff9e403ece7037c665991a34a04bbf048 all runs: crashed: KASAN: use-after-free Write in xfs_trans_committed_bulk representative crash: KASAN: use-after-free Write in xfs_trans_committed_bulk, types: [KASAN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d4166c6349e4bdc3046c8ffc1ef4d13774feaba4d6e08ce65c2e63464fede2b6 all runs: 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 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5af7aaae81f3e6de102c40b7c3bc8ca3f0a24d8a7f1515b5f8d35f648f55f138 all runs: OK false negative chance: 0.000 minimized to 791 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ASYMMETRIC_TPM_KEY_SUBTYPE ATM AX25 BCMA BLK_DEV_ZONED BPF_SYSCALL 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_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 IP_SCTP L2TP LIBCRC32C LIBNVDIMM MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_COMMON_OPTIONS MEDIA_CONTROLLER MEDIA_DIGITAL_TV_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_RETU MFD_VIPERBOARD MMC MTD MTD_UBI NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 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_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 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_SI470X RADIO_SI4713 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 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USB_SERIAL_AIRCABLE USB_SERIAL_ARK3116 USB_SERIAL_BELKIN USB_SERIAL_CH341 USB_SERIAL_CONSOLE USB_SERIAL_CP210X USB_SERIAL_CYBERJACK USB_SERIAL_CYPRESS_M8 USB_SERIAL_DEBUG USB_SERIAL_DIGI_ACCELEPORT USB_SERIAL_EDGEPORT USB_SERIAL_EDGEPORT_TI USB_SERIAL_EMPEG USB_SERIAL_F81232 USB_SERIAL_F8153X USB_SERIAL_FTDI_SIO USB_SERIAL_GARMIN USB_SERIAL_GENERIC USB_SERIAL_IPAQ USB_SERIAL_IPW USB_SERIAL_IR USB_SERIAL_IUU USB_SERIAL_KEYSPAN USB_SERIAL_KEYSPAN_PDA USB_SERIAL_KLSI USB_SERIAL_KOBIL_SCT USB_SERIAL_MCT_U232 USB_SERIAL_METRO USB_SERIAL_MOS7715_PARPORT USB_SERIAL_MOS7720 USB_SERIAL_MOS7840 USB_SERIAL_MXUPORT USB_SERIAL_NAVMAN USB_SERIAL_OMNINET USB_SERIAL_OPTICON USB_SERIAL_OPTION USB_SERIAL_OTI6858 USB_SERIAL_PL2303 USB_SERIAL_QCAUX USB_SERIAL_QT2 USB_SERIAL_QUALCOMM USB_SERIAL_SAFE USB_SERIAL_SIERRAWIRELESS USB_SERIAL_SIMPLE USB_SERIAL_SPCP8X5 USB_SERIAL_SSU100 USB_SERIAL_SYMBOL USB_SERIAL_TI USB_SERIAL_UPD78F0730 USB_SERIAL_VISOR USB_SERIAL_WHITEHEAT USB_SERIAL_WISHBONE USB_SERIAL_WWAN USB_SERIAL_XR USB_SERIAL_XSENS_MT USB_SEVSEG USB_SI470X USB_SI4713 USB_SIERRA_NET USB_SISUSBVGA USB_SL811_CS USB_SL811_HCD USB_SL811_HCD_ISO USB_SNP_CORE USB_SPEEDTOUCH USB_STKWEBCAM USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_ENE_UB6250 USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_REALTEK USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_STV06XX USB_TEST USB_TMC USB_TRANCEVIBRATOR USB_U132_HCD USB_UAS USB_UEAGLEATM USB_ULPI_BUS USB_USBNET USB_USS720 USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_VIDEO_CLASS USB_VIDEO_CLASS_INPUT_EVDEV USB_VL600 USB_WDM USB_XHCI_DBGCAP USB_XHCI_PLATFORM USB_XUSBATM USB_YUREX USB_ZR364XX USERFAULTFD USERIO USERMODE_DRIVER USER_RETURN_NOTIFIER U_SERIAL_CONSOLE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VETH VFIO VFIO_IOMMU_TYPE1 VFIO_PCI VFIO_PCI_CORE VFIO_PCI_INTX VFIO_PCI_MMAP VFIO_VIRQFD VGASTATE VHOST VHOST_CROSS_ENDIAN_LEGACY VHOST_IOTLB VHOST_NET VHOST_RING VHOST_VDPA VHOST_VSOCK VIDEOBUF2_CORE VIDEOBUF2_DMA_CONTIG VIDEOBUF2_DMA_SG VIDEOBUF2_MEMOPS VIDEOBUF2_V4L2 VIDEOBUF2_VMALLOC VIDEOBUF_GEN VIDEOBUF_VMALLOC VIDEO_AU0828 VIDEO_AU0828_RC VIDEO_AU0828_V4L2 VIDEO_CPIA2 VIDEO_CS53L32A VIDEO_CX231XX VIDEO_CX231XX_ALSA VIDEO_CX231XX_DVB VIDEO_CX231XX_RC VIDEO_CX2341X VIDEO_CX25840 VIDEO_DEV VIDEO_EM28XX VIDEO_EM28XX_ALSA VIDEO_EM28XX_DVB VIDEO_EM28XX_RC VIDEO_EM28XX_V4L2 VIDEO_GO7007 VIDEO_GO7007_LOADER VIDEO_GO7007_USB VIDEO_GO7007_USB_S2250_BOARD VIDEO_HDPVR VIDEO_MSP3400 VIDEO_PVRUSB2 VIDEO_PVRUSB2_DVB 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 XFS_SUPPORT_V4 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_ZPOOL_DEFAULT_ZBUD] disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed determining the merge base between 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 and aed8aee11130a954356200afa3f1b8753e8a9482 8bb7eca972ad531c9b149c0a51ab43a417385813/Linux 5.15 is a merge base, check if it has the bug testing commit 8bb7eca972ad531c9b149c0a51ab43a417385813 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 41582f86133b3ee1e439b6a0b1c33fb52bdc27ad434ad7dc9da2b7eb0546566b all runs: crashed: KASAN: use-after-free Write in xfs_trans_committed_bulk representative crash: KASAN: use-after-free Write in xfs_trans_committed_bulk, types: [KASAN] testing current HEAD aed8aee11130a954356200afa3f1b8753e8a9482 testing commit aed8aee11130a954356200afa3f1b8753e8a9482 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2e73b33c6424daf5c494187cdcbd61bced1be789865b81937105f5114c84ed81 all runs: OK false negative chance: 0.000 # git bisect start aed8aee11130a954356200afa3f1b8753e8a9482 8bb7eca972ad531c9b149c0a51ab43a417385813 Bisecting: 85087 revisions left to test after this (roughly 16 steps) [76e45035348c247a70ed50eb29a9906657e4444f] Merge tag 'for-6.1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 76e45035348c247a70ed50eb29a9906657e4444f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 34b86bcd7ea2fe519a963cd2c4c1149d5a192ee09db09a58d8e252908642bc91 all runs: crashed: KASAN: use-after-free Write in xfs_trans_committed_bulk representative crash: KASAN: use-after-free Write in xfs_trans_committed_bulk, types: [KASAN] # git bisect good 76e45035348c247a70ed50eb29a9906657e4444f Bisecting: 42583 revisions left to test after this (roughly 15 steps) [cd02a1a24897ce8a5e32d29a11cb0a926fa6572a] Merge branch 'mlx5e-xdp-extend' determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit cd02a1a24897ce8a5e32d29a11cb0a926fa6572a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4a0659825f47f46730cf1f2721dd33733c555aa8f21e7421a0f92e09e2ef6fec all runs: OK false negative chance: 0.000 # git bisect bad cd02a1a24897ce8a5e32d29a11cb0a926fa6572a Bisecting: 21089 revisions left to test after this (roughly 14 steps) [ba54ff1fb662215de683777f815b9e96276d55cf] Merge tag 'char-misc-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc determine whether the revision contains the guilty commit revision 76e45035348c247a70ed50eb29a9906657e4444f crashed and is reachable testing commit ba54ff1fb662215de683777f815b9e96276d55cf gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 370fecec677d81314f25bc877a87d11c570f1cfc656f5655b1c1238ec89ac85a all runs: OK false negative chance: 0.000 # git bisect bad ba54ff1fb662215de683777f815b9e96276d55cf Bisecting: 10710 revisions left to test after this (roughly 13 steps) [0a1d4434db5f86c50018fe0aab299ac97dc15b76] Merge tag 'timers-core-2022-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 0a1d4434db5f86c50018fe0aab299ac97dc15b76 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 520f57efedc486bf85439b83e4b7f5f3500d5003bb5aa2faf9322cb61ce9d206 all runs: crashed: KASAN: use-after-free Write in xfs_trans_committed_bulk representative crash: KASAN: use-after-free Write in xfs_trans_committed_bulk, types: [KASAN] # git bisect good 0a1d4434db5f86c50018fe0aab299ac97dc15b76 Bisecting: 5351 revisions left to test after this (roughly 12 steps) [a70210f41566131f88d31583f96e36cb7f5d2ad0] Merge tag 'x86_microcode_for_v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip determine whether the revision contains the guilty commit revision 0a1d4434db5f86c50018fe0aab299ac97dc15b76 crashed and is reachable testing commit a70210f41566131f88d31583f96e36cb7f5d2ad0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ca07826cb8a8a3c8abe96f05c0b745b12962227aacbd585dbc1154d88f2de6dd all runs: crashed: KASAN: use-after-free Write in xfs_trans_committed_bulk representative crash: KASAN: use-after-free Write in xfs_trans_committed_bulk, types: [KASAN] # git bisect good a70210f41566131f88d31583f96e36cb7f5d2ad0 Bisecting: 2641 revisions left to test after this (roughly 11 steps) [aa5ad10f6cca6d42f3fef6cb862e03b220ea19a6] Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi determine whether the revision contains the guilty commit revision 0a1d4434db5f86c50018fe0aab299ac97dc15b76 crashed and is reachable testing commit aa5ad10f6cca6d42f3fef6cb862e03b220ea19a6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3b9b6ce29ff6c47ced20cc2186c4fdb9a9400e2aeb37ecb3b39a2f79497b4a5d all runs: crashed: KASAN: use-after-free Write in xfs_trans_committed_bulk representative crash: KASAN: use-after-free Write in xfs_trans_committed_bulk, types: [KASAN] # git bisect good aa5ad10f6cca6d42f3fef6cb862e03b220ea19a6 Bisecting: 1210 revisions left to test after this (roughly 10 steps) [8fa590bf344816c925810331eea8387627bbeb40] Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm determine whether the revision contains the guilty commit revision aa5ad10f6cca6d42f3fef6cb862e03b220ea19a6 crashed and is reachable testing commit 8fa590bf344816c925810331eea8387627bbeb40 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a4072a445a7f05db2b0ff74a89b45b11eb22ed166b1297002871e7ae834b01e5 all runs: OK false negative chance: 0.000 # git bisect bad 8fa590bf344816c925810331eea8387627bbeb40 Bisecting: 750 revisions left to test after this (roughly 10 steps) [93761c93e9da28d8a020777cee2a84133082b477] Merge tag 'apparmor-pr-2022-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 93761c93e9da28d8a020777cee2a84133082b477 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 78a9f7e78c0d6825b8928f75fdbfd6c4738f04b7916ff26195ec4d3113cc41ab all runs: OK false negative chance: 0.000 # git bisect bad 93761c93e9da28d8a020777cee2a84133082b477 Bisecting: 364 revisions left to test after this (roughly 8 steps) [c7020e1b346d5840e93b58cc4f2c67fc645d8df9] Merge tag 'pci-v6.2-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit c7020e1b346d5840e93b58cc4f2c67fc645d8df9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6f21b94270ed5f6307d557d5ae85b30681c8a8b5883d193148b168437af73f55 all runs: crashed: KASAN: use-after-free Write in xfs_trans_committed_bulk representative crash: KASAN: use-after-free Write in xfs_trans_committed_bulk, types: [KASAN] # git bisect good c7020e1b346d5840e93b58cc4f2c67fc645d8df9 Bisecting: 182 revisions left to test after this (roughly 8 steps) [6c013679eb5c7e0b09cbcb64276f6dd97b473d12] dt-bindings: crypto: Let STM32 define Ux500 CRYP determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 6c013679eb5c7e0b09cbcb64276f6dd97b473d12 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0f43388959c5b468e8f4c3290d81787d086204b782e25eeeffb6f78f72d23d5b all runs: crashed: KASAN: use-after-free Write in xfs_trans_committed_bulk representative crash: KASAN: use-after-free Write in xfs_trans_committed_bulk, types: [KASAN] # git bisect good 6c013679eb5c7e0b09cbcb64276f6dd97b473d12 Bisecting: 101 revisions left to test after this (roughly 7 steps) [ad76bf1ff18e059d64b70047940d298641d4cc2f] Merge tag 'memblock-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock determine whether the revision contains the guilty commit revision aa5ad10f6cca6d42f3fef6cb862e03b220ea19a6 crashed and is reachable testing commit ad76bf1ff18e059d64b70047940d298641d4cc2f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 10e469a72b38736a8b9a076a037b9c23b14c9c08b1211bb94991d7e3b8e298cf all runs: OK false negative chance: 0.000 # git bisect bad ad76bf1ff18e059d64b70047940d298641d4cc2f Bisecting: 36 revisions left to test after this (roughly 5 steps) [7dd73802f97d2a1602b1cf5c1d6623fb08cb15c5] Merge tag 'xfs-iomap-stale-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs into xfs-6.2-mergeB determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 7dd73802f97d2a1602b1cf5c1d6623fb08cb15c5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 36cbf71303f90e07f6341264fc2e1d286804641710989a68674b0ca657a58463 all runs: crashed: KASAN: use-after-free Write in xfs_trans_committed_bulk representative crash: KASAN: use-after-free Write in xfs_trans_committed_bulk, types: [KASAN] # git bisect good 7dd73802f97d2a1602b1cf5c1d6623fb08cb15c5 Bisecting: 18 revisions left to test after this (roughly 4 steps) [87be949912eedb73690d8eaeb086f24bfe17438d] Merge tag 'xfs-6.2-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux determine whether the revision contains the guilty commit revision 76e45035348c247a70ed50eb29a9906657e4444f crashed and is reachable testing commit 87be949912eedb73690d8eaeb086f24bfe17438d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 263fd5086fb8d28dc0a6855c7290b2013912f27c62b2ebac71d20bb72fc2295c all runs: OK false negative chance: 0.000 # git bisect bad 87be949912eedb73690d8eaeb086f24bfe17438d Bisecting: 8 revisions left to test after this (roughly 3 steps) [1eb52a6a71981b80f9acbd915acd6a05a5037196] xfs: wait iclog complete before tearing down AIL determine whether the revision contains the guilty commit revision 76e45035348c247a70ed50eb29a9906657e4444f crashed and is reachable testing commit 1eb52a6a71981b80f9acbd915acd6a05a5037196 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e4950ab8e8ec7ca482940d76bcec9e3edbe3e03e663a8203930585ecc78e0f0f all runs: crashed: KASAN: use-after-free Write in xfs_trans_committed_bulk representative crash: KASAN: use-after-free Write in xfs_trans_committed_bulk, types: [KASAN] # git bisect good 1eb52a6a71981b80f9acbd915acd6a05a5037196 Bisecting: 4 revisions left to test after this (roughly 2 steps) [948961964b2404ea474a3643fc0e1b77c592bb7c] Merge tag 'maxrefcount-fixes-6.2_2022-12-01' of git://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux into xfs-6.2-mergeD determine whether the revision contains the guilty commit revision 76e45035348c247a70ed50eb29a9906657e4444f crashed and is reachable testing commit 948961964b2404ea474a3643fc0e1b77c592bb7c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b23f33b0a752605a1b237baa7824a3d6f71ec1043255f9d380e839869deb2660 all runs: OK false negative chance: 0.000 # git bisect bad 948961964b2404ea474a3643fc0e1b77c592bb7c Bisecting: 1 revision left to test after this (roughly 1 step) [b25d1984aa884fc91a73a5a407b9ac976d441e9b] xfs: estimate post-merge refcounts correctly determine whether the revision contains the guilty commit revision 7dd73802f97d2a1602b1cf5c1d6623fb08cb15c5 crashed and is reachable testing commit b25d1984aa884fc91a73a5a407b9ac976d441e9b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 79fa98171c3772b3fbb9411bb7bdbb0cbe4ce2889cc4daf928d7b16472cc4ddb all runs: crashed: KASAN: use-after-free Write in xfs_trans_committed_bulk representative crash: KASAN: use-after-free Write in xfs_trans_committed_bulk, types: [KASAN] # git bisect good b25d1984aa884fc91a73a5a407b9ac976d441e9b Bisecting: 0 revisions left to test after this (roughly 0 steps) [575689fc0ffa6c4bb4e72fd18e31a6525a6124e0] xfs: fix super block buf log item UAF during force shutdown determine whether the revision contains the guilty commit revision 76e45035348c247a70ed50eb29a9906657e4444f crashed and is reachable testing commit 575689fc0ffa6c4bb4e72fd18e31a6525a6124e0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d45b60a8e51ee50c8967146c759fc73309d955ee62f0f0687833567b1698e950 all runs: OK false negative chance: 0.000 # git bisect bad 575689fc0ffa6c4bb4e72fd18e31a6525a6124e0 575689fc0ffa6c4bb4e72fd18e31a6525a6124e0 is the first bad commit commit 575689fc0ffa6c4bb4e72fd18e31a6525a6124e0 Author: Guo Xuenan Date: Wed Nov 30 09:25:46 2022 -0800 xfs: fix super block buf log item UAF during force shutdown xfs log io error will trigger xlog shut down, and end_io worker call xlog_state_shutdown_callbacks to unpin and release the buf log item. The race condition is that when there are some thread doing transaction commit and happened not to be intercepted by xlog_is_shutdown, then, these log item will be insert into CIL, when unpin and release these buf log item, UAF will occur. BTW, add delay before `xlog_cil_commit` can increase recurrence probability. The following call graph actually encountered this bad situation. fsstress io end worker kworker/0:1H-216 xlog_ioend_work ->xlog_force_shutdown ->xlog_state_shutdown_callbacks ->xlog_cil_process_committed ->xlog_cil_committed ->xfs_trans_committed_bulk ->xfs_trans_apply_sb_deltas ->li_ops->iop_unpin(lip, 1); ->xfs_trans_getsb ->_xfs_trans_bjoin ->xfs_buf_item_init ->if (bip) { return 0;} //relog ->xlog_cil_commit ->xlog_cil_insert_items //insert into CIL ->xfs_buf_ioend_fail(bp); ->xfs_buf_ioend ->xfs_buf_item_done ->xfs_buf_item_relse ->xfs_buf_item_free when cil push worker gather percpu cil and insert super block buf log item into ctx->log_items then uaf occurs. ================================================================== BUG: KASAN: use-after-free in xlog_cil_push_work+0x1c8f/0x22f0 Write of size 8 at addr ffff88801800f3f0 by task kworker/u4:4/105 CPU: 0 PID: 105 Comm: kworker/u4:4 Tainted: G W 6.1.0-rc1-00001-g274115149b42 #136 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 Workqueue: xfs-cil/sda xlog_cil_push_work Call Trace: dump_stack_lvl+0x4d/0x66 print_report+0x171/0x4a6 kasan_report+0xb3/0x130 xlog_cil_push_work+0x1c8f/0x22f0 process_one_work+0x6f9/0xf70 worker_thread+0x578/0xf30 kthread+0x28c/0x330 ret_from_fork+0x1f/0x30 Allocated by task 2145: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 __kasan_slab_alloc+0x54/0x60 kmem_cache_alloc+0x14a/0x510 xfs_buf_item_init+0x160/0x6d0 _xfs_trans_bjoin+0x7f/0x2e0 xfs_trans_getsb+0xb6/0x3f0 xfs_trans_apply_sb_deltas+0x1f/0x8c0 __xfs_trans_commit+0xa25/0xe10 xfs_symlink+0xe23/0x1660 xfs_vn_symlink+0x157/0x280 vfs_symlink+0x491/0x790 do_symlinkat+0x128/0x220 __x64_sys_symlink+0x7a/0x90 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 216: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 kasan_save_free_info+0x2a/0x40 __kasan_slab_free+0x105/0x1a0 kmem_cache_free+0xb6/0x460 xfs_buf_ioend+0x1e9/0x11f0 xfs_buf_item_unpin+0x3d6/0x840 xfs_trans_committed_bulk+0x4c2/0x7c0 xlog_cil_committed+0xab6/0xfb0 xlog_cil_process_committed+0x117/0x1e0 xlog_state_shutdown_callbacks+0x208/0x440 xlog_force_shutdown+0x1b3/0x3a0 xlog_ioend_work+0xef/0x1d0 process_one_work+0x6f9/0xf70 worker_thread+0x578/0xf30 kthread+0x28c/0x330 ret_from_fork+0x1f/0x30 The buggy address belongs to the object at ffff88801800f388 which belongs to the cache xfs_buf_item of size 272 The buggy address is located 104 bytes inside of 272-byte region [ffff88801800f388, ffff88801800f498) The buggy address belongs to the physical page: page:ffffea0000600380 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88801800f208 pfn:0x1800e head:ffffea0000600380 order:1 compound_mapcount:0 compound_pincount:0 flags: 0x1fffff80010200(slab|head|node=0|zone=1|lastcpupid=0x1fffff) raw: 001fffff80010200 ffffea0000699788 ffff88801319db50 ffff88800fb50640 raw: ffff88801800f208 000000000015000a 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88801800f280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88801800f300: fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88801800f380: fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88801800f400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88801800f480: fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== Disabling lock debugging due to kernel taint Signed-off-by: Guo Xuenan Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong fs/xfs/xfs_buf_item.c | 2 ++ 1 file changed, 2 insertions(+) accumulated error probability: 0.00 culprit signature: d45b60a8e51ee50c8967146c759fc73309d955ee62f0f0687833567b1698e950 parent signature: e4950ab8e8ec7ca482940d76bcec9e3edbe3e03e663a8203930585ecc78e0f0f revisions tested: 26, total time: 7h14m42.076102632s (build: 1h42m2.931520067s, test: 5h24m22.624701538s) first good commit: 575689fc0ffa6c4bb4e72fd18e31a6525a6124e0 xfs: fix super block buf log item UAF during force shutdown recipients (to): ["djwong@kernel.org" "guoxuenan@huawei.com"] recipients (cc): []