ci starts bisection 2023-07-31 02:19:09.932022958 +0000 UTC m=+42240.099140275 bisecting cause commit starting from d7b3af5a77e8d8da28f435f313e069aea5bcf172 building syzkaller on 2a0d0f29e37863d5cdb8e95c9fa2a83251ba3972 ensuring issue is reproducible on original commit d7b3af5a77e8d8da28f435f313e069aea5bcf172 testing commit d7b3af5a77e8d8da28f435f313e069aea5bcf172 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cbf0268fd5aa492271c716abef1f87b1d5fe615805ffaa732f0afd8712056a2c run #0: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #1: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #2: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #3: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #4: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #5: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #6: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #7: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #8: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #9: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #10: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #11: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #12: crashed: KASAN: slab-use-after-free Read in grab_super run #13: crashed: KASAN: slab-use-after-free Read in grab_super run #14: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #15: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #16: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #17: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #18: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #19: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #20: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #21: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #22: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #23: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #24: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #25: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #26: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #27: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #28: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #29: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #30: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #31: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #32: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #33: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #34: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #35: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #36: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #37: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #38: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc run #39: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc representative crash: KASAN: slab-use-after-free Read in test_bdev_super_fc, types: [KASAN] check whether we can drop unnecessary instrumentation disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit d7b3af5a77e8d8da28f435f313e069aea5bcf172 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 404e10e2896f0f4ce3f4125f2144777fd5e04ddd1cbfdafa249772d057b3c183 all runs: crashed: KASAN: slab-use-after-free Read in test_bdev_super_fc representative crash: KASAN: slab-use-after-free Read in test_bdev_super_fc, types: [KASAN] the bug reproduces without the instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed kconfig minimization: base=3883 full=7666 leaves diff=2009 split chunks (needed=false): <2009> split chunk #0 of len 2009 into 5 parts testing without sub-chunk 1/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit d7b3af5a77e8d8da28f435f313e069aea5bcf172 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ee04539cc0676ec874469a6b9da9df5d1271072a59cb6867218b74b6b3cfcdf3 all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit d7b3af5a77e8d8da28f435f313e069aea5bcf172 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b1c17a24ac27b07d6918ec532ac1d345c85b8b0fe20e5fa942a8f4fb52c0eb4a all runs: crashed: WARNING: lock held when returning to user space in get_tree_bdev representative crash: WARNING: lock held when returning to user space in get_tree_bdev, types: [LOCKDEP] 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 d7b3af5a77e8d8da28f435f313e069aea5bcf172 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 82484f65522352838f4a8dd5c8e65d8d1d31c964c35f1fa5244e7849ee460fb1 all runs: crashed: WARNING: lock held when returning to user space in get_tree_bdev representative crash: WARNING: lock held when returning to user space in get_tree_bdev, types: [LOCKDEP] 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 d7b3af5a77e8d8da28f435f313e069aea5bcf172 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 841f17523e8bd10befc57737f14587b2f8387174b9d43459a9e861614a47a1ae all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed testing commit d7b3af5a77e8d8da28f435f313e069aea5bcf172 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cac5036ba5f147b71cf09b1d1ee15e90a2d721b645860430eb87e016dca64a1f all runs: crashed: WARNING: lock held when returning to user space in get_tree_bdev representative crash: WARNING: lock held when returning to user space in get_tree_bdev, types: [LOCKDEP] the chunk can be dropped minimized to 804 configs; suspects: [6LOWPAN 6LOWPAN_GHC_EXT_HDR_DEST 6LOWPAN_GHC_EXT_HDR_FRAG 6LOWPAN_GHC_EXT_HDR_HOP 6LOWPAN_GHC_EXT_HDR_ROUTE 6LOWPAN_GHC_ICMPV6 6LOWPAN_GHC_UDP 6LOWPAN_NHC 6LOWPAN_NHC_DEST 6LOWPAN_NHC_FRAGMENT 6LOWPAN_NHC_HOP 6LOWPAN_NHC_IPV6 6LOWPAN_NHC_MOBILITY 6LOWPAN_NHC_ROUTING 6LOWPAN_NHC_UDP 6PACK 842_COMPRESS 842_DECOMPRESS 9P_FSCACHE 9P_FS_POSIX_ACL 9P_FS_SECURITY ACORN_PARTITION ACORN_PARTITION_ADFS ACORN_PARTITION_CUMANA ACORN_PARTITION_EESOX ACORN_PARTITION_ICS ACORN_PARTITION_POWERTEC ACORN_PARTITION_RISCIX ACPI_NFIT ACPI_PLATFORM_PROFILE ADDRESS_MASKING ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMIGA_PARTITION ANDROID_BINDERFS ANDROID_BINDER_IPC ANON_VMA_NAME APERTURE_HELPERS AR5523 ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ARCH_SUPPORTS_CRASH_DUMP ARCH_SUPPORTS_KEXEC ARCH_SUPPORTS_KEXEC_BZIMAGE_VERIFY_SIG ARCH_SUPPORTS_KEXEC_FILE ARCH_SUPPORTS_KEXEC_JUMP ARCH_SUPPORTS_KEXEC_SIG ARCH_SUPPORTS_KEXEC_SIG_FORCE ARCH_WANT_OPTIMIZE_DAX_VMEMMAP ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP ASM_MODVERSIONS ASYNC_CORE ASYNC_MEMCPY ASYNC_PQ ASYNC_RAID6_RECOV ASYNC_TX_DMA ASYNC_XOR ATARI_PARTITION ATA_GENERIC ATA_OVER_ETH ATH10K ATH10K_CE ATH10K_PCI ATH10K_USB ATH11K ATH6KL ATH6KL_USB ATH9K ATH9K_AHB ATH9K_BTCOEX_SUPPORT ATH9K_CHANNEL_CONTEXT ATH9K_COMMON ATH9K_COMMON_DEBUG ATH9K_DEBUGFS ATH9K_DYNACK ATH9K_HTC ATH9K_HTC_DEBUGFS ATH9K_HW ATH9K_PCI ATH9K_PCOEM ATH9K_RFKILL ATH_COMMON ATM ATM_BR2684 ATM_CLIP ATM_DRIVERS ATM_LANE ATM_MPOA ATM_TCP AUXILIARY_BUS AX25 AX25_DAMA_SLAVE AX88796B_PHY BAREUDP BATMAN_ADV BATMAN_ADV_BATMAN_V BATMAN_ADV_BLA BATMAN_ADV_DAT BATMAN_ADV_MCAST BATMAN_ADV_NC BCACHE BCMA BCMA_HOST_PCI_POSSIBLE BEFS_FS BFQ_CGROUP_DEBUG BFQ_GROUP_IOSCHED BFS_FS BIG_KEYS BLK_CGROUP_PUNT_BIO BLK_CGROUP_RWSTAT BLK_DEBUG_FS_ZONED BLK_DEV_BSGLIB BLK_DEV_FD BLK_DEV_INTEGRITY BLK_DEV_INTEGRITY_T10 BLK_DEV_NBD BLK_DEV_NULL_BLK BLK_DEV_NULL_BLK_FAULT_INJECTION BLK_DEV_NVME BLK_DEV_PMEM BLK_DEV_RAM BLK_DEV_RNBD BLK_DEV_RNBD_CLIENT BLK_DEV_THROTTLING BLK_ICQ BLK_INLINE_ENCRYPTION BLK_INLINE_ENCRYPTION_FALLBACK BLK_WBT BLK_WBT_MQ BONDING BOOT_VESA_SUPPORT BPF_EVENTS BPF_JIT BPF_JIT_ALWAYS_ON BPF_JIT_DEFAULT_ON BPF_LSM BPF_PRELOAD BPF_PRELOAD_UMD BPF_STREAM_PARSER BPF_SYSCALL BPQETHER BRIDGE BRIDGE_CFM BRIDGE_EBT_802_3 BRIDGE_EBT_AMONG BRIDGE_EBT_ARP BRIDGE_EBT_ARPREPLY BRIDGE_EBT_BROUTE BRIDGE_EBT_DNAT BRIDGE_EBT_IP BRIDGE_EBT_IP6 BRIDGE_EBT_LIMIT BRIDGE_EBT_LOG BRIDGE_EBT_MARK BRIDGE_EBT_MARK_T BRIDGE_EBT_NFLOG BRIDGE_EBT_PKTTYPE BRIDGE_EBT_REDIRECT BRIDGE_EBT_SNAT BRIDGE_EBT_STP BRIDGE_EBT_T_FILTER BRIDGE_EBT_T_NAT BRIDGE_EBT_VLAN BRIDGE_IGMP_SNOOPING BRIDGE_MRP BRIDGE_NF_EBTABLES BRIDGE_VLAN_FILTERING BSD_DISKLABEL BSD_PROCESS_ACCT_V3 BT BTRFS_ASSERT BTRFS_FS BTRFS_FS_POSIX_ACL BTRFS_FS_REF_VERIFY BTT BT_6LOWPAN BT_ATH3K BT_BCM BT_BNEP BT_BNEP_MC_FILTER BT_BNEP_PROTO_FILTER BT_BREDR BT_CMTP BT_HCIBCM203X BT_HCIBFUSB BT_HCIBPA10X BT_HCIBTUSB BT_HCIBTUSB_BCM BT_HCIBTUSB_MTK BT_HCIBTUSB_POLL_SYNC BT_HCIBTUSB_RTL BT_HCIUART BT_HCIUART_3WIRE BT_HCIUART_AG6XX BT_HCIUART_BCSP BT_HCIUART_H4 BT_HCIUART_LL BT_HCIUART_MRVL BT_HCIUART_QCA BT_HCIUART_SERDEV BT_HCIVHCI BT_HIDP BT_HS BT_INTEL BT_LE BT_LEDS BT_LE_L2CAP_ECRED BT_MSFTEXT BT_MTK BT_QCA BT_RFCOMM BT_RFCOMM_TTY BT_RTL CACHEFILES CAIF CAIF_DEBUG CAIF_DRIVERS CAIF_NETDEV CAIF_TTY CAIF_USB CAIF_VIRTIO CAN CAN_8DEV_USB CAN_BCM CAN_CALC_BITTIMING CAN_DEV CAN_EMS_USB CAN_GS_USB CAN_GW CAN_IFI_CANFD CAN_ISOTP CAN_J1939 CAN_KVASER_USB CAN_MCBA_USB CAN_NETLINK CAN_PEAK_USB CAN_RAW CAN_SLCAN CAN_VCAN CAN_VXCAN CAPI_TRACE CARL9170 CARL9170_HWRNG CARL9170_LEDS CARL9170_WPC CEC_CORE CEPH_FS CEPH_FSCACHE CEPH_FS_POSIX_ACL CEPH_LIB CEPH_LIB_USE_DNS_RESOLVER CFG80211 CFG80211_CRDA_SUPPORT CFG80211_DEBUGFS CFG80211_DEFAULT_PS CFG80211_REQUIRE_SIGNED_REGDB CFG80211_USE_KERNEL_REGDB_KEYS CFG80211_WEXT CFS_BANDWIDTH CGROUP_BPF CHARGER_BQ24190 CHARGER_ISP1704 CHR_DEV_ST CIFS CIFS_ALLOW_INSECURE_LEGACY CIFS_DEBUG CIFS_DFS_UPCALL CIFS_FSCACHE CIFS_POSIX CIFS_SMB_DIRECT CIFS_SWN_UPCALL CIFS_UPCALL CIFS_XATTR CLS_U32_MARK CLS_U32_PERF CMA CMA_SIZE_SEL_MBYTES CMDLINE_PARTITION COMEDI COMEDI_DT9812 COMEDI_NI_USB6501 COMEDI_USBDUX COMEDI_USBDUXFAST COMEDI_USBDUXSIGMA COMEDI_USB_DRIVERS COMEDI_VMK80XX COMPAT_NETLINK_MESSAGES COUNTER CRAMFS CRAMFS_BLOCKDEV CRAMFS_MTD CRC4 CRC64 CRC64_ROCKSOFT CRC7 CRC8 CRC_ITU_T CRC_T10DIF CRYPTO_ADIANTUM CRYPTO_AEGIS128 CRYPTO_AEGIS128_AESNI_SSE2 CRYPTO_AES_NI_INTEL CRYPTO_AES_TI CRYPTO_ANSI_CPRNG CRYPTO_ANUBIS CRYPTO_ARC4 CRYPTO_ARCH_HAVE_LIB_BLAKE2S CRYPTO_ARCH_HAVE_LIB_CHACHA CRYPTO_ARCH_HAVE_LIB_CURVE25519 CRYPTO_ARCH_HAVE_LIB_POLY1305 CRYPTO_ARIA CRYPTO_ARIA_AESNI_AVX_X86_64 CRYPTO_BLAKE2B CRYPTO_BLAKE2S_X86 CRYPTO_BLOWFISH CRYPTO_BLOWFISH_COMMON CRYPTO_BLOWFISH_X86_64 CRYPTO_CAMELLIA CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 CRYPTO_CAMELLIA_AESNI_AVX_X86_64 CRYPTO_CAMELLIA_X86_64 CRYPTO_CAST5 CRYPTO_CAST5_AVX_X86_64 CRYPTO_CAST6 CRYPTO_CAST6_AVX_X86_64 CRYPTO_CAST_COMMON CRYPTO_CFB CRYPTO_CHACHA20 CRYPTO_CHACHA20POLY1305 CRYPTO_CHACHA20_X86_64 CRYPTO_CRC32 CRYPTO_CRC32C_INTEL CRYPTO_CRC32_PCLMUL CRYPTO_CRC64_ROCKSOFT CRYPTO_CRCT10DIF CRYPTO_CRCT10DIF_PCLMUL CRYPTO_CRYPTD CRYPTO_CTS CRYPTO_CURVE25519 CRYPTO_CURVE25519_X86 CRYPTO_DEFLATE CRYPTO_DES CRYPTO_DES3_EDE_X86_64 CRYPTO_DEV_CCP CRYPTO_DEV_CCP_DD CRYPTO_DEV_PADLOCK CRYPTO_DEV_PADLOCK_AES CRYPTO_DEV_PADLOCK_SHA CRYPTO_DEV_QAT CRYPTO_DEV_QAT_C3XXX CRYPTO_DEV_QAT_C3XXXVF CRYPTO_DEV_QAT_C62X CRYPTO_DEV_QAT_C62XVF CRYPTO_DEV_QAT_DH895xCC CRYPTO_DEV_QAT_DH895xCCVF CRYPTO_DEV_VIRTIO CRYPTO_DH CRYPTO_DRBG_CTR CRYPTO_DRBG_HASH CRYPTO_ECB CRYPTO_ECC CRYPTO_ECDH CRYPTO_ECRDSA CRYPTO_ENGINE CRYPTO_ESSIV CRYPTO_FCRYPT CRYPTO_GHASH_CLMUL_NI_INTEL CRYPTO_HCTR2 CRYPTO_KDF800108_CTR CRYPTO_KEYWRAP CRYPTO_KHAZAD CRYPTO_KPP CRYPTO_LIB_ARC4 CRYPTO_LIB_CHACHA CRYPTO_LIB_CHACHA20POLY1305 CRYPTO_LIB_CHACHA_GENERIC CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_DES CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LRW CRYPTO_MICHAEL_MIC CRYPTO_NHPOLY1305 CRYPTO_NHPOLY1305_AVX2 CRYPTO_NHPOLY1305_SSE2 CRYPTO_OFB CRYPTO_PCBC CRYPTO_PCRYPT CRYPTO_POLY1305 CRYPTO_POLY1305_X86_64 CRYPTO_POLYVAL CRYPTO_POLYVAL_CLMUL_NI CRYPTO_RMD160 CRYPTO_SEED CRYPTO_SERPENT CRYPTO_SERPENT_AVX2_X86_64 CRYPTO_SERPENT_AVX_X86_64 CRYPTO_SERPENT_SSE2_X86_64 CRYPTO_SHA1_SSSE3 CRYPTO_SHA256_SSSE3 CRYPTO_SHA512_SSSE3 CRYPTO_SIMD CRYPTO_SM2 CRYPTO_SM3 CRYPTO_SM3_AVX_X86_64 CRYPTO_SM4 CRYPTO_SM4_AESNI_AVX2_X86_64 CRYPTO_SM4_AESNI_AVX_X86_64 CRYPTO_SM4_GENERIC CRYPTO_STREEBOG CRYPTO_TEA CRYPTO_TWOFISH CRYPTO_TWOFISH_AVX_X86_64 CRYPTO_TWOFISH_COMMON CRYPTO_TWOFISH_X86_64 CRYPTO_TWOFISH_X86_64_3WAY CRYPTO_USER CRYPTO_USER_API CRYPTO_USER_API_AEAD CRYPTO_USER_API_ENABLE_OBSOLETE CRYPTO_USER_API_HASH CRYPTO_USER_API_RNG CRYPTO_USER_API_SKCIPHER CRYPTO_VMAC CRYPTO_WP512 CRYPTO_XCBC CRYPTO_XCTR CRYPTO_XTS CRYPTO_XXHASH CUSE CYPRESS_FIRMWARE DAMON DAMON_DBGFS DAMON_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEFAULT_PFIFO_FAST DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DIMLIB DLM DLN2_ADC DMABUF_HEAPS DMABUF_HEAPS_CMA DMABUF_HEAPS_SYSTEM DMABUF_MOVE_NOTIFY DMA_CMA DMA_ENGINE_RAID DM_AUDIT DM_BIO_PRISON DM_BUFIO DM_CACHE DM_CACHE_SMQ DM_CLONE DM_CRYPT DM_FLAKEY DM_INTEGRITY DM_MULTIPATH DM_MULTIPATH_QL DM_MULTIPATH_ST DM_PERSISTENT_DATA DM_RAID DM_SNAPSHOT DM_THIN_PROVISIONING DM_UEVENT DM_VERITY DM_VERITY_FEC DVB_CORE ENCRYPTED_KEYS EXTCON FSCACHE FUSE_FS GENEVE GPIOLIB HAMRADIO HAVE_CLK HID_SENSOR_HUB HID_SMARTJOYPLUS HID_THRUSTMASTER IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_RTRS_CLIENT INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN IOSCHED_BFQ IP_SCTP ISDN ISDN_CAPI L2TP LIBNVDIMM MAC80211 MAC80211_LEDS 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_ADVANCED NETFILTER_CONNCOUNT NET_CLS_U32 NET_IPGRE NET_IPGRE_DEMUX NET_SCH_DEFAULT NFS_V4_1 NF_CONNTRACK_SNMP NF_NAT_PPTP NF_NAT_REDIRECT NF_NAT_SNMP_BASIC NF_NAT_TFTP NF_SOCKET_IPV4 NF_SOCKET_IPV6 NF_TABLES NF_TABLES_ARP NF_TPROXY_IPV4 NF_TPROXY_IPV6 NILFS2_FS 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_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 PPPOE_HASH_BITS_4 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_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 SPI SPI_DLN2 SPI_DYNAMIC SPI_MASTER SQUASHFS SQUASHFS_4K_DEVBLK_SIZE SQUASHFS_COMPILE_DECOMP_SINGLE SQUASHFS_DECOMP_SINGLE SQUASHFS_FILE_DIRECT SQUASHFS_LZ4 SQUASHFS_LZO SQUASHFS_XATTR SQUASHFS_XZ SQUASHFS_ZLIB SQUASHFS_ZSTD SSB SSB_PCIHOST_POSSIBLE SSB_PCMCIAHOST_POSSIBLE SSB_SDIOHOST_POSSIBLE STAGING STP STREAM_PARSER SUNRPC_BACKCHANNEL SUN_PARTITION SW_SYNC 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_DEVICE 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 TRUSTED_KEYS 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_DWC2 USB_GADGET USB_MUSB_HDRC USB_NET_CDC_SUBSET USB_PHY USB_ROLE_SWITCH USB_STORAGE_REALTEK USB_ULPI_BUS USB_USBNET VIDEO_DEV VLAN_8021Q VXLAN WANT_COMPAT_NETLINK_MESSAGES WEXT_CORE WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ATH X86_X32_ABI ZONE_DEVICE] disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing release v6.4 testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 913850672e42d9a499342c074dd6ca0fafd92376d8f420874ada5e282757efd5 all runs: OK false negative chance: 0.000 # git bisect start d7b3af5a77e8d8da28f435f313e069aea5bcf172 6995e2de6891c724bfeb2db33d7b87775f913ad1 Bisecting: 9244 revisions left to test after this (roughly 13 steps) [1546cd4bfda49fd6faad47eb30f4e744e2d79a8f] Merge tag 'ata-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata testing commit 1546cd4bfda49fd6faad47eb30f4e744e2d79a8f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c2d06663b61851abaa72d1505263288486dc5487ab11bb1a80c17e2d0b7c2761 all runs: OK false negative chance: 0.000 # git bisect good 1546cd4bfda49fd6faad47eb30f4e744e2d79a8f Bisecting: 4550 revisions left to test after this (roughly 12 steps) [fc4593f0096b3bc0c7aebbc8bf0e16429040d35a] Merge branch 'mm-everything' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm testing commit fc4593f0096b3bc0c7aebbc8bf0e16429040d35a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dc3bd5db455e536e9ce8833690e56c1b2cda2d0fd9703e37a150f191aeee75c2 all runs: OK false negative chance: 0.000 # git bisect good fc4593f0096b3bc0c7aebbc8bf0e16429040d35a Bisecting: 2308 revisions left to test after this (roughly 11 steps) [a0354d7dcf7eae972c3cd80e6e291788b4f7a355] Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git testing commit a0354d7dcf7eae972c3cd80e6e291788b4f7a355 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ca42e7e0699cf901292a9b35edfaf08e7a9e8164a46babc2062fd3ddfa638e0b all runs: crashed: WARNING: lock held when returning to user space in get_tree_bdev representative crash: WARNING: lock held when returning to user space in get_tree_bdev, types: [LOCKDEP] # git bisect bad a0354d7dcf7eae972c3cd80e6e291788b4f7a355 Bisecting: 1073 revisions left to test after this (roughly 10 steps) [2f1f233784371134cbb1c76a8365c54717807fac] Merge branch 'vfs.all' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git testing commit 2f1f233784371134cbb1c76a8365c54717807fac gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6d96cf2a66fed6afb558b75c7de69debe1b316a540e2161399fcfc663b0def8a all runs: crashed: WARNING: lock held when returning to user space in get_tree_bdev representative crash: WARNING: lock held when returning to user space in get_tree_bdev, types: [LOCKDEP] # git bisect bad 2f1f233784371134cbb1c76a8365c54717807fac Bisecting: 595 revisions left to test after this (roughly 9 steps) [a18eb749f160cfe097c0622a7230955ef0ea101e] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git testing commit a18eb749f160cfe097c0622a7230955ef0ea101e gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c7c8f948c4a2c3b537329b475a541ac3dba1153561d798b4de0a040fcbca9de1 all runs: OK false negative chance: 0.000 # git bisect good a18eb749f160cfe097c0622a7230955ef0ea101e Bisecting: 332 revisions left to test after this (roughly 8 steps) [e90935cd15af21de704246a57dfede98c1bc4738] Merge branch 'afs-next' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git testing commit e90935cd15af21de704246a57dfede98c1bc4738 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 12b67f91fc1b535a5ea23d5231225d8f4a925c5d2d1738568a9aad55aef404b9 all runs: OK false negative chance: 0.000 # git bisect good e90935cd15af21de704246a57dfede98c1bc4738 Bisecting: 163 revisions left to test after this (roughly 7 steps) [5dcb77615369d7a665e3ddf4afac424a254fb8e9] Merge branch 'overlayfs-next' of git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs.git testing commit 5dcb77615369d7a665e3ddf4afac424a254fb8e9 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 73cd5b2502a08a5f4c096c346de7e2eb3373ae126d2fc228773550799816fd67 all runs: OK false negative chance: 0.000 # git bisect good 5dcb77615369d7a665e3ddf4afac424a254fb8e9 Bisecting: 81 revisions left to test after this (roughly 6 steps) [8d9569aedf2317f451d5f1e8a7d16668b91de48e] xfs: convert to ctime accessor functions testing commit 8d9569aedf2317f451d5f1e8a7d16668b91de48e gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d372eef3d952392fadbc1f9fe7d7188f3e7cafec2b3bd9713258ccdf591a7e37 all runs: OK false negative chance: 0.000 # git bisect good 8d9569aedf2317f451d5f1e8a7d16668b91de48e Bisecting: 40 revisions left to test after this (roughly 5 steps) [b82d19eab09bb467a40a0729f930cc2e93aea98d] Merge branch 'vfs.misc' into vfs.all testing commit b82d19eab09bb467a40a0729f930cc2e93aea98d gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c3545fbbf52c135564c4d4347f073243de33ebc074b9bd95fa487ec20fea0e8c all runs: OK false negative chance: 0.000 # git bisect good b82d19eab09bb467a40a0729f930cc2e93aea98d Bisecting: 20 revisions left to test after this (roughly 4 steps) [a67371b7aee931572eab313384e7fcd93255f6f8] Merge tag 'iomap-per-block-dirty-tracking' of https://github.com/riteshharjani/linux into iomap-6.6-merge testing commit a67371b7aee931572eab313384e7fcd93255f6f8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 315a351d2750065690773032afadad46cc6f97fb0bd3140eca2292d5a03013c4 all runs: OK false negative chance: 0.000 # git bisect good a67371b7aee931572eab313384e7fcd93255f6f8 Bisecting: 9 revisions left to test after this (roughly 3 steps) [91bcc05fab9bb173d6d6da955d2ae213919e2ef0] Merge branch 'vfs.super' into vfs.all testing commit 91bcc05fab9bb173d6d6da955d2ae213919e2ef0 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8ce22e183a3fcb5cbda2720ffd67c830ced9cbbefaaee253a1af32e439ec8fd0 all runs: crashed: WARNING: lock held when returning to user space in get_tree_bdev representative crash: WARNING: lock held when returning to user space in get_tree_bdev, types: [LOCKDEP] # git bisect bad 91bcc05fab9bb173d6d6da955d2ae213919e2ef0 Bisecting: 5 revisions left to test after this (roughly 3 steps) [d3c4d377d2f1716ae9e68219f3d77752cfa84a06] Merge branch 'vfs.fchmodat2' into vfs.all testing commit d3c4d377d2f1716ae9e68219f3d77752cfa84a06 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8aba84d062364e91d4cc637eb3648dfdf3578074da8858e299719345e2c2474a all runs: OK false negative chance: 0.000 # git bisect good d3c4d377d2f1716ae9e68219f3d77752cfa84a06 Bisecting: 2 revisions left to test after this (roughly 2 steps) [ccf61486fe1e1a48e18c638d1813cda77b3c0737] procfs: block chmod on /proc/thread-self/comm testing commit ccf61486fe1e1a48e18c638d1813cda77b3c0737 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 82d743282802365ff0fa615cbd4d6c34ba0aff1473813729f0dced65c5488379 all runs: OK false negative chance: 0.000 # git bisect good ccf61486fe1e1a48e18c638d1813cda77b3c0737 Bisecting: 1 revision left to test after this (roughly 1 step) [1dbd9ceb390c4c61d28cf2c9251dd2015946ce51] fs: open block device after superblock creation testing commit 1dbd9ceb390c4c61d28cf2c9251dd2015946ce51 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d919fdcc3a2591f83a18c47dcc405c9fc2e11e5e48a7e3811136dd1c6baab648 all runs: crashed: WARNING: lock held when returning to user space in get_tree_bdev representative crash: WARNING: lock held when returning to user space in get_tree_bdev, types: [LOCKDEP] # git bisect bad 1dbd9ceb390c4c61d28cf2c9251dd2015946ce51 1dbd9ceb390c4c61d28cf2c9251dd2015946ce51 is the first bad commit commit 1dbd9ceb390c4c61d28cf2c9251dd2015946ce51 Author: Jan Kara Date: Mon Jul 24 10:51:45 2023 -0700 fs: open block device after superblock creation Currently get_tree_bdev and mount_bdev open the block device before committing to allocating a super block. That creates problems for restricting the number of writers to a device, and also leads to a unusual and not very helpful holder (the fs_type). Reorganize the super block code to first look whether the superblock for a particular device does already exist and open the block device only if it doesn't. [hch: port to before the bdev_handle changes, duplicate the bdev read-only check from blkdev_get_by_path, extend the fsfree_mutex coverage to protect against freezes, fix an open bdev leak when the bdev is frozen, use the bdev local variable more, rename the s variable to sb to be more descriptive] [brauner: remove references to mounts as they're mostly irrelevant] Signed-off-by: Jan Kara Signed-off-by: Christoph Hellwig Message-Id: <20230724175145.201318-1-hch@lst.de> Signed-off-by: Christian Brauner fs/super.c | 194 +++++++++++++++++++++++++++++++------------------------------ 1 file changed, 98 insertions(+), 96 deletions(-) accumulated error probability: 0.00 parent commit 06c2afb862f9da8dc5efa4b6076a0e48c3fbaaa5 wasn't tested testing commit 06c2afb862f9da8dc5efa4b6076a0e48c3fbaaa5 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f6733909e6c5ad53ed862839b1002889eb4cb14d76fd253c12b2dc83231a2ac4 culprit signature: d919fdcc3a2591f83a18c47dcc405c9fc2e11e5e48a7e3811136dd1c6baab648 parent signature: f6733909e6c5ad53ed862839b1002889eb4cb14d76fd253c12b2dc83231a2ac4 revisions tested: 22, total time: 7h41m50.925465391s (build: 4h36m7.490781551s, test: 2h53m39.395182753s) first bad commit: 1dbd9ceb390c4c61d28cf2c9251dd2015946ce51 fs: open block device after superblock creation recipients (to): ["brauner@kernel.org" "hch@lst.de" "jack@suse.cz"] recipients (cc): [] crash: WARNING: lock held when returning to user space in get_tree_bdev /dev/nullb0: Can't open blockdev ================================================ WARNING: lock held when returning to user space! 6.5.0-rc1-syzkaller #0 Not tainted ------------------------------------------------ syz-executor.2/4779 is leaving the kernel with locks still held! 1 lock held by syz-executor.2/4779: #0: ffff8880187ac0e0 (&type->s_umount_key#54){....}-{3:3}, at: get_tree_bdev+0x30d/0x600 fs/super.c:1343