ci starts bisection 2024-05-05 22:45:15.666643213 +0000 UTC m=+179957.859895358 bisecting cause commit starting from 7367539ad4b0f8f9b396baf02110962333719a48 building syzkaller on 610f2a54d02f8cf4f2454c03bf679b602e6e59b6 ensuring issue is reproducible on original commit 7367539ad4b0f8f9b396baf02110962333719a48 testing commit 7367539ad4b0f8f9b396baf02110962333719a48 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 37b06eb95377a1559feab3732733052c8eea72725d2af13e702abfaa2d2196b0 all runs: crashed: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text representative crash: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text, types: [KASAN] check whether we can drop unnecessary instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 7367539ad4b0f8f9b396baf02110962333719a48 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d038f23bb0dbded872bdb12ca576e02a3eed55fb7ac2f2a5292bd2b9c68816bb all runs: crashed: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text representative crash: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text, types: [KASAN] the bug reproduces without the instrumentation disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed kconfig minimization: base=3971 full=8000 leaves diff=2012 split chunks (needed=false): <2012> split chunk #0 of len 2012 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 7367539ad4b0f8f9b396baf02110962333719a48 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 03c4c504cfcf62d2d7807b0139c9fe9cff2760ce6512e7d8a91099fd4cf47a64 all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 7367539ad4b0f8f9b396baf02110962333719a48 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 94d87fe3484b4335eba1cf94b33617c24d12e22becfc2d656d86ce158dc5e5ba all runs: crashed: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text representative crash: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text, 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 7367539ad4b0f8f9b396baf02110962333719a48 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 53b4f9f5e0edfe6e05dbd4ec0d82945c26abf0d84527a9fb041aceef668fab2d run #0: crashed: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text run #1: crashed: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text run #2: crashed: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text run #3: crashed: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text run #4: crashed: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text run #5: crashed: KASAN: slab-use-after-free Read in __hci_req_sync run #6: crashed: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text run #7: crashed: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text run #8: crashed: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text run #9: crashed: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text representative crash: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text, 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 7367539ad4b0f8f9b396baf02110962333719a48 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b7331f23a98ca90b12e60ae0c2ea47394ffa79c7bf6a0fe82bee449543438a0e all runs: crashed: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text representative crash: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text, types: [KASAN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 7367539ad4b0f8f9b396baf02110962333719a48 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eca8197fa4739c788a3de21d04394fa3640956b0beb373974827611637e6228d all runs: crashed: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text representative crash: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text, types: [KASAN] the chunk can be dropped minimized to 403 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_CONFIGURES_CPU_MITIGATIONS ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ARCH_HAS_CPU_PASID ARCH_WANT_PMD_MKWRITE 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 BCACHEFS_DEBUG BCACHEFS_ERASURE_CODING BCACHEFS_FS BCACHEFS_POSIX_ACL BCACHEFS_QUOTA BCACHEFS_SIX_OPTIMISTIC_SPIN 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_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_DEV_ZONED 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_NF_EBTABLES_LEGACY 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_INTEL BT_LE BT_LEDS BT_LE_L2CAP_ECRED BT_MRVL BT_MRVL_SDIO 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_RX_OFFLOAD 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 CLOSURES 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_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_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_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_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEFAULT_PFIFO_FAST DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX 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 DM_WRITECACHE DM_ZONED DRAGONRISE_FF DRM DRM_BOCHS ENCRYPTED_KEYS EXTCON FSCACHE FUSE_FS GPIOLIB HAMRADIO HID_DRAGONRISE IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOSCHED_BFQ ISDN ISDN_CAPI LIBNVDIMM MAC80211 MAC80211_DEBUGFS MAC80211_LEDS MEDIA_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MMC MTD NET_CLS_U32 NET_SCH_DEFAULT PARTITION_ADVANCED RFKILL SERIAL_DEV_BUS TLS TLS_DEVICE TRANSPARENT_HUGEPAGE TRUSTED_KEYS USB_GADGET USB_PHY VLAN_8021Q WANT_COMPAT_NETLINK_MESSAGES WEXT_CORE WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ATH X86_X32_ABI ZONE_DEVICE] disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed picked [v6.8 v6.7 v6.6 v6.4 v6.2 v6.0 v5.18 v5.16 v5.13 v5.10 v5.7 v5.4 v5.1 v4.19] out of 31 release tags testing release v6.8 testing commit e8f897f4afef0031fe618a8e94127a0934896aba gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e7b70550fa5abb4d9eff4e2beb30500e1e27e73669d0e89fc1f6881cbd9b4de3 all runs: crashed: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text representative crash: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text, types: [KASAN] testing release v6.7 testing commit 0dd3ee31125508cd67f7e7172247f05b7fd1753a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ea3f6ace324d1394792bfc655e9e2fc5001370212853a4020aa287a32995d227 all runs: crashed: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text representative crash: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text, types: [KASAN] testing release v6.6 testing commit ffc253263a1375a65fa6c9f62a893e9767fbebfa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: befdcdd948602692c0d0f4f0b1d87589ac6503114bdac57b4dc38137a446da90 all runs: OK false negative chance: 0.000 # git bisect start 0dd3ee31125508cd67f7e7172247f05b7fd1753a ffc253263a1375a65fa6c9f62a893e9767fbebfa Bisecting: 9251 revisions left to test after this (roughly 13 steps) [deefd5024f0772cf56052ace9a8c347dc70bcaf3] Merge tag 'vfio-v6.7-rc1' of https://github.com/awilliam/linux-vfio testing commit deefd5024f0772cf56052ace9a8c347dc70bcaf3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 392a7d94dd8eb3bb18e4ff7ac8a6bfd9f76f6ae3b110975cec03b4065a392764 all runs: OK false negative chance: 0.000 # git bisect good deefd5024f0772cf56052ace9a8c347dc70bcaf3 Bisecting: 4695 revisions left to test after this (roughly 12 steps) [1f24458a1071f006e3f7449c08ae0f12af493923] Merge tag 'tty-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty testing commit 1f24458a1071f006e3f7449c08ae0f12af493923 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1fcf884c01267701b09deff912e7c1961f56dc790e1f83a07d6599c085cd10d1 all runs: OK false negative chance: 0.000 # git bisect good 1f24458a1071f006e3f7449c08ae0f12af493923 Bisecting: 2364 revisions left to test after this (roughly 11 steps) [ac347a0655dbc7d885e217c89dddd16e2800bd58] Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux testing commit ac347a0655dbc7d885e217c89dddd16e2800bd58 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 517bf164139ffb3376d2735d7e765cbfd90f7b993649ebe7d71dd286d6166146 all runs: OK false negative chance: 0.000 # git bisect good ac347a0655dbc7d885e217c89dddd16e2800bd58 Bisecting: 1182 revisions left to test after this (roughly 10 steps) [c1bacb02cb2f2c56db10f3d927acb5f91fe4d064] MAINTAINERS: change vmware.com addresses to broadcom.com testing commit c1bacb02cb2f2c56db10f3d927acb5f91fe4d064 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 77c1cb1061e8b55a11d1f1b4adf1a05340c7620e4059f1dd7def1c9babaadfb1 all runs: OK false negative chance: 0.000 # git bisect good c1bacb02cb2f2c56db10f3d927acb5f91fe4d064 Bisecting: 591 revisions left to test after this (roughly 9 steps) [01a564bab4876007ce35f312e16797dfe40e4823] net: check vlan filter feature in vlan_vids_add_by_dev() and vlan_vids_del_by_dev() testing commit 01a564bab4876007ce35f312e16797dfe40e4823 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a2dc6015b86c3c058fcd5a2681926d32b923067d117db6ca8becb879fe5b1418 all runs: OK false negative chance: 0.000 # git bisect good 01a564bab4876007ce35f312e16797dfe40e4823 Bisecting: 295 revisions left to test after this (roughly 8 steps) [2e957f9c32c154f8b823caa4f0921e0056c0c253] Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue testing commit 2e957f9c32c154f8b823caa4f0921e0056c0c253 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ec0a57ec5799725695746277709bfe4020fb55c02b64d04c22e3686e00035142 all runs: OK false negative chance: 0.000 # git bisect good 2e957f9c32c154f8b823caa4f0921e0056c0c253 Bisecting: 147 revisions left to test after this (roughly 7 steps) [2bd7a06a1208aaacb4e7a2a5436c23bce8d70801] drm/i915/dp: Fix passing the correct DPCD_REV for drm_dp_set_phy_test_pattern testing commit 2bd7a06a1208aaacb4e7a2a5436c23bce8d70801 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1e584dc1081a74bca194f3df7551fb6a6f688e60633a7717ee932098dd735dd3 all runs: OK false negative chance: 0.000 # git bisect good 2bd7a06a1208aaacb4e7a2a5436c23bce8d70801 Bisecting: 72 revisions left to test after this (roughly 6 steps) [5939a693dc6e6d6f293681017c70ff60c3723d43] Merge tag 'drm-fixes-2024-01-04' of git://anongit.freedesktop.org/drm/drm testing commit 5939a693dc6e6d6f293681017c70ff60c3723d43 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 97c948d51b19675ad155792f90a5d483205c7970031cad9adff1a715f8cce31f all runs: crashed: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text representative crash: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text, types: [KASAN] # git bisect bad 5939a693dc6e6d6f293681017c70ff60c3723d43 Bisecting: 36 revisions left to test after this (roughly 5 steps) [453f5db0619e2ad64076aab16ff5a00e0f7c53a2] Merge tag 'trace-v6.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace testing commit 453f5db0619e2ad64076aab16ff5a00e0f7c53a2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0dcc44d4533adcc09b29a7428f2cfc28e6e9edfe18da334ca10f266146f81611 all runs: OK false negative chance: 0.000 # git bisect good 453f5db0619e2ad64076aab16ff5a00e0f7c53a2 Bisecting: 19 revisions left to test after this (roughly 4 steps) [981d04137a4b5ea95133572bdb3d888c9b515850] Merge tag 'bcachefs-2024-01-01' of https://evilpiepirate.org/git/bcachefs testing commit 981d04137a4b5ea95133572bdb3d888c9b515850 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2ac9674bc1b801e0fb04f4835c86a3848643ccc610640f98061b1b32ba7474f9 all runs: crashed: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text representative crash: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text, types: [KASAN] # git bisect bad 981d04137a4b5ea95133572bdb3d888c9b515850 Bisecting: 8 revisions left to test after this (roughly 3 steps) [6b49b0f7e73817265f80c565037ac812df6f1ae3] bcachefs: move BCH_SB_ERRS() to sb-errors_types.h testing commit 6b49b0f7e73817265f80c565037ac812df6f1ae3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f744326f6cffa2fed51bf6870924a87a68a8af776952644e17f164bf36cfb2b4 all runs: OK false negative chance: 0.000 # git bisect good 6b49b0f7e73817265f80c565037ac812df6f1ae3 Bisecting: 4 revisions left to test after this (roughly 2 steps) [84f1638795da1ff2084597de4251e9054f1ad728] bcachefs: bch_sb_field_downgrade testing commit 84f1638795da1ff2084597de4251e9054f1ad728 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4e177839425308fa906a234981f34689ffd17432aca3b7897055442f44f5f992 all runs: crashed: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text representative crash: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text, types: [KASAN] # git bisect bad 84f1638795da1ff2084597de4251e9054f1ad728 Bisecting: 1 revision left to test after this (roughly 1 step) [808c680f2a256188951805f05c907d40919db37a] bcachefs: Add persistent identifiers for recovery passes testing commit 808c680f2a256188951805f05c907d40919db37a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ddff4fb8dd5451b124b910b3b1ecbfafd2d6662b5e99b290f58825b0025dc8ea all runs: OK false negative chance: 0.000 # git bisect good 808c680f2a256188951805f05c907d40919db37a Bisecting: 0 revisions left to test after this (roughly 0 steps) [8b16413cda7c46d47f8071165b3071f8a9369199] bcachefs: bch_sb.recovery_passes_required testing commit 8b16413cda7c46d47f8071165b3071f8a9369199 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 36f506fb0b2e5ceda8fff2a9ff22e3b953e4e5e01d1692549b3604ffc763b0b3 all runs: OK false negative chance: 0.000 # git bisect good 8b16413cda7c46d47f8071165b3071f8a9369199 84f1638795da1ff2084597de4251e9054f1ad728 is the first bad commit commit 84f1638795da1ff2084597de4251e9054f1ad728 Author: Kent Overstreet Date: Fri Dec 29 15:25:07 2023 -0500 bcachefs: bch_sb_field_downgrade Add a new superblock section that contains a list of { minor version, recovery passes, errors_to_fix } that is - a list of recovery passes that must be run when downgrading past a given version, and a list of errors to silently fix. The upcoming disk accounting rewrite is not going to be fully compatible: we're going to have to regenerate accounting both when upgrading to the new version, and also from downgrading from the new version, since the new method of doing disk space accounting is a completely different architecture based on deltas, and synchronizing them for every jounal entry write to maintain compatibility is going to be too expensive and impractical. Signed-off-by: Kent Overstreet fs/bcachefs/Makefile | 1 + fs/bcachefs/bcachefs_format.h | 20 ++++- fs/bcachefs/errcode.h | 2 + fs/bcachefs/recovery.c | 24 +++++- fs/bcachefs/sb-clean.c | 2 - fs/bcachefs/sb-downgrade.c | 188 ++++++++++++++++++++++++++++++++++++++++++ fs/bcachefs/sb-downgrade.h | 10 +++ fs/bcachefs/sb-errors.c | 4 +- fs/bcachefs/super-io.c | 11 ++- fs/bcachefs/super-io.h | 2 +- 10 files changed, 255 insertions(+), 9 deletions(-) create mode 100644 fs/bcachefs/sb-downgrade.c create mode 100644 fs/bcachefs/sb-downgrade.h accumulated error probability: 0.00 culprit signature: 4e177839425308fa906a234981f34689ffd17432aca3b7897055442f44f5f992 parent signature: 36f506fb0b2e5ceda8fff2a9ff22e3b953e4e5e01d1692549b3604ffc763b0b3 revisions tested: 24, total time: 6h30m43.189401138s (build: 3h26m58.802768013s, test: 2h47m33.33411291s) first bad commit: 84f1638795da1ff2084597de4251e9054f1ad728 bcachefs: bch_sb_field_downgrade recipients (to): ["kent.overstreet@linux.dev" "linux-kernel@vger.kernel.org"] recipients (cc): [] crash: KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text loop0: detected capacity change from 0 to 32768 ================================================================== BUG: KASAN: slab-out-of-bounds in bch2_sb_downgrade_to_text+0xe67/0x1e10 fs/bcachefs/sb-downgrade.c:104 Read of size 2 at addr ffff8881772f2000 by task syz-executor.0/2377 CPU: 1 PID: 2377 Comm: syz-executor.0 Not tainted 6.7.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xf8/0x260 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0x167/0x540 mm/kasan/report.c:475 kasan_report+0x142/0x180 mm/kasan/report.c:588 bch2_sb_downgrade_to_text+0xe67/0x1e10 fs/bcachefs/sb-downgrade.c:104 bch2_sb_field_to_text+0x162/0x200 fs/bcachefs/super-io.c:1194 bch2_sb_field_validate+0x1b5/0x270 fs/bcachefs/super-io.c:1168 bch2_sb_validate+0x73d/0x910 fs/bcachefs/super-io.c:489 bch2_read_super+0x69a/0x11a0 fs/bcachefs/super-io.c:823 bch2_fs_open+0x2c7/0x2b10 fs/bcachefs/super.c:1922 bch2_mount+0x561/0x1080 fs/bcachefs/fs.c:1835 legacy_get_tree+0xe9/0x180 fs/fs_context.c:662 vfs_get_tree+0x82/0x190 fs/super.c:1771 do_new_mount+0x1e5/0x930 fs/namespace.c:3337 do_mount fs/namespace.c:3677 [inline] __do_sys_mount fs/namespace.c:3886 [inline] __se_sys_mount+0x242/0x2e0 fs/namespace.c:3863 do_syscall_64+0x4d/0x120 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f596627f3aa Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007f59670c6ef8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f59670c6f80 RCX: 00007f596627f3aa RDX: 0000000020011a00 RSI: 0000000020000000 RDI: 00007f59670c6f40 RBP: 0000000020011a00 R08: 00007f59670c6f80 R09: 0000000003a04000 R10: 0000000003a04000 R11: 0000000000000246 R12: 0000000020000000 R13: 00007f59670c6f40 R14: 0000000000011a04 R15: 0000000020000600 Allocated by task 2377: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4f/0x80 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:198 [inline] __do_kmalloc_node mm/slab_common.c:1007 [inline] __kmalloc_node_track_caller+0xab/0x1d0 mm/slab_common.c:1027 __do_krealloc mm/slab_common.c:1395 [inline] krealloc+0x7d/0x120 mm/slab_common.c:1428 bch2_sb_realloc+0x1bd/0x370 fs/bcachefs/super-io.c:207 read_one_super+0x6c2/0xd90 fs/bcachefs/super-io.c:670 bch2_read_super+0x54d/0x11a0 fs/bcachefs/super-io.c:756 bch2_fs_open+0x2c7/0x2b10 fs/bcachefs/super.c:1922 bch2_mount+0x561/0x1080 fs/bcachefs/fs.c:1835 legacy_get_tree+0xe9/0x180 fs/fs_context.c:662 vfs_get_tree+0x82/0x190 fs/super.c:1771 do_new_mount+0x1e5/0x930 fs/namespace.c:3337 do_mount fs/namespace.c:3677 [inline] __do_sys_mount fs/namespace.c:3886 [inline] __se_sys_mount+0x242/0x2e0 fs/namespace.c:3863 do_syscall_64+0x4d/0x120 entry_SYSCALL_64_after_hwframe+0x6f/0x77 The buggy address belongs to the object at ffff8881772f0000 which belongs to the cache kmalloc-8k of size 8192 The buggy address is located 0 bytes to the right of allocated 8192-byte region [ffff8881772f0000, ffff8881772f2000) The buggy address belongs to the physical page: page:ffffea0005dcbc00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1772f0 head:ffffea0005dcbc00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0x100000000000840(slab|head|node=0|zone=2) page_type: 0xffffffff() raw: 0100000000000840 ffff888100042280 0000000000000000 0000000000000001 raw: 0000000000000000 0000000000020002 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1451, tgid 1451 (sh), ts 25066330815, free_ts 25029055594 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x10f/0x130 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1544 [inline] get_page_from_freelist+0x3e5f/0x4080 mm/page_alloc.c:3312 __alloc_pages+0x255/0x650 mm/page_alloc.c:4568 alloc_pages_mpol+0x27f/0x4d0 mm/mempolicy.c:2133 alloc_slab_page+0x6a/0x170 mm/slub.c:1870 allocate_slab mm/slub.c:2017 [inline] new_slab+0x70/0x270 mm/slub.c:2070 ___slab_alloc+0x94b/0xee0 mm/slub.c:3223 __slab_alloc mm/slub.c:3322 [inline] __slab_alloc_node mm/slub.c:3375 [inline] slab_alloc_node mm/slub.c:3468 [inline] __kmem_cache_alloc_node+0x1fb/0x2c0 mm/slub.c:3517 kmalloc_trace+0x2a/0xc0 mm/slab_common.c:1098 kmalloc include/linux/slab.h:600 [inline] kzalloc include/linux/slab.h:721 [inline] tomoyo_print_bprm security/tomoyo/audit.c:26 [inline] tomoyo_init_log+0x10ad/0x1fe0 security/tomoyo/audit.c:264 tomoyo_supervisor+0x316/0xfb0 security/tomoyo/common.c:2089 tomoyo_find_next_domain+0x2c7/0x1700 security/tomoyo/domain.c:752 tomoyo_bprm_check_security+0xfa/0x130 security/tomoyo/tomoyo.c:101 security_bprm_check+0x2a/0x80 security/security.c:1103 search_binary_handler fs/exec.c:1725 [inline] exec_binprm fs/exec.c:1779 [inline] bprm_execve+0x87f/0x13b0 fs/exec.c:1854 do_execveat_common+0x44f/0x620 fs/exec.c:1962 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare+0x7e7/0x900 mm/page_alloc.c:2347 free_unref_page+0x37/0x3a0 mm/page_alloc.c:2487 discard_slab mm/slub.c:2116 [inline] __unfreeze_partials+0x1b1/0x200 mm/slub.c:2655 put_cpu_partial+0x150/0x1b0 mm/slub.c:2731 __slab_free+0x26f/0x330 mm/slub.c:3679 qlink_free mm/kasan/quarantine.c:168 [inline] qlist_free_all+0x75/0xe0 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:305 kasan_slab_alloc include/linux/kasan.h:188 [inline] slab_post_alloc_hook+0x67/0x3c0 mm/slab.h:763 slab_alloc_node mm/slub.c:3478 [inline] __kmem_cache_alloc_node+0x1b2/0x2c0 mm/slub.c:3517 kmalloc_trace+0x2a/0xc0 mm/slab_common.c:1098 kmalloc include/linux/slab.h:600 [inline] tomoyo_print_header security/tomoyo/audit.c:156 [inline] tomoyo_init_log+0x1d2/0x1fe0 security/tomoyo/audit.c:255 tomoyo_supervisor+0x316/0xfb0 security/tomoyo/common.c:2089 tomoyo_audit_path_log security/tomoyo/file.c:168 [inline] tomoyo_path_permission security/tomoyo/file.c:587 [inline] tomoyo_check_open_permission+0x679/0x960 security/tomoyo/file.c:780 security_file_open+0x2a/0x90 security/security.c:2836 do_dentry_open+0x2ee/0x11c0 fs/open.c:935 Memory state around the buggy address: ffff8881772f1f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8881772f1f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8881772f2000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8881772f2080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8881772f2100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================