ci starts bisection 2025-05-15 17:13:47.297562871 +0000 UTC m=+28010.249361079 bisecting fixing commit since 27eddbf3449026a73d6ed52d55b192bfcf526a03 building syzkaller on 0808a665bc75ab0845906bfeca0d12fb520ae6eb ensuring issue is reproducible on original commit 27eddbf3449026a73d6ed52d55b192bfcf526a03 testing commit 27eddbf3449026a73d6ed52d55b192bfcf526a03 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4d21d0f7cb6aaea2a13fab8fa532233cf91845baac2b307f7f9d63f165fe7129 all runs: crashed: KASAN: use-after-free Read in check_dirent representative crash: KASAN: use-after-free Read in check_dirent, 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 27eddbf3449026a73d6ed52d55b192bfcf526a03 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d7a259dabd14bfbdfe261b511a16047cea51b4e83846e0091219b2291a268530 all runs: crashed: KASAN: use-after-free Read in check_dirent representative crash: KASAN: use-after-free Read in check_dirent, 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=4082 full=8265 leaves diff=2131 split chunks (needed=false): <2131> split chunk #0 of len 2131 into 5 parts testing without sub-chunk 1/5 disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 27eddbf3449026a73d6ed52d55b192bfcf526a03 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 19d7d3ed673904e95f0a1bdf533df71b0981cc81730054874125ed1fcc8e4e1f all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed testing commit 27eddbf3449026a73d6ed52d55b192bfcf526a03 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d9c4affdb4e56501d5a679603bd2dbb3dd893ad0011dd673bbbb8cc1444dea10 all runs: crashed: KASAN: use-after-free Read in check_dirent representative crash: KASAN: use-after-free Read in check_dirent, 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 27eddbf3449026a73d6ed52d55b192bfcf526a03 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c397e628e8b34acaa7eacc8384dc901f20ea7296f1fcb369eb5fb477b59e4b83 all runs: crashed: KASAN: use-after-free Read in check_dirent representative crash: KASAN: use-after-free Read in check_dirent, types: [KASAN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 27eddbf3449026a73d6ed52d55b192bfcf526a03 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c1048e9f6c91a9b1822ae93c71329e0443dd4880b2f05e1cede7d8aa743c02ba all runs: crashed: KASAN: use-after-free Read in check_dirent representative crash: KASAN: use-after-free Read in check_dirent, 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 27eddbf3449026a73d6ed52d55b192bfcf526a03 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eb4ed0f5d9e38ab9c7b248a5e5b460ad410e658c6db798577a69a87eba2977f9 all runs: crashed: KASAN: use-after-free Read in check_dirent representative crash: KASAN: use-after-free Read in check_dirent, types: [KASAN] the chunk can be dropped minimized to 427 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_NHLT ACPI_PLATFORM_PROFILE ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMD_SFH_HID AMIGA_PARTITION ANDROID_BINDER_IPC ANON_VMA_NAME APERTURE_HELPERS APPLE_MFI_FASTCHARGE AR5523 ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ARCH_HAS_USER_SHADOW_STACK ARCH_SUPPORTS_HUGE_PFNMAP ARCH_SUPPORTS_PMD_PFNMAP ARCH_SUPPORTS_PUD_PFNMAP ARCH_WANT_PMD_MKWRITE ASM_MODVERSIONS ASUS_TF103C_DOCK ASYNC_CORE ASYNC_MEMCPY ASYNC_PQ ASYNC_RAID6_RECOV ASYNC_TX_DMA ASYNC_XOR AS_SHA1_NI AS_SHA256_NI AS_TPAUSE ATARI_PARTITION ATA_GENERIC ATA_OVER_ETH ATH10K ATH10K_CE ATH10K_LEDS ATH10K_PCI ATH10K_USB ATH11K ATH6KL ATH6KL_USB ATH9K ATH9K_AHB ATH9K_BTCOEX_SUPPORT ATH9K_CHANNEL_CONTEXT ATH9K_COMMON ATH9K_COMMON_DEBUG ATH9K_COMMON_SPECTRAL 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_DEV_BSGLIB BLK_DEV_INTEGRITY 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_HCIBCM203X BT_HCIBFUSB BT_HCIBPA10X BT_HCIBTUSB BT_HCIBTUSB_AUTOSUSPEND 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_INTEL BT_LE BT_LEDS BT_LE_L2CAP_ECRED BT_MRVL BT_MRVL_SDIO BT_MSFTEXT BT_MTK BT_MTKSDIO BT_MTKUART 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_ESD_USB CAN_ETAS_ES58X CAN_F81604 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_UCAN CAN_VCAN CAN_VXCAN CARL9170 CARL9170_HWRNG CARL9170_LEDS CARL9170_WPC CC_HAS_SANE_STACKPROTECTOR 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_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_MAX 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_CCITT CRC_ITU_T CRC_T10DIF CRC_T10DIF_ARCH CRYPTO_842 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 CRYPTO_CRC64_ROCKSOFT 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_ECDH CRYPTO_ECRDSA CRYPTO_ENGINE CRYPTO_ESSIV CRYPTO_FCRYPT CRYPTO_GHASH_CLMUL_NI_INTEL CRYPTO_HCTR2 CRYPTO_KDF800108_CTR 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_LZ4 CRYPTO_LZ4HC 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_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_WP512 CRYPTO_XCBC CRYPTO_XCTR CRYPTO_XTS CRYPTO_XXHASH CRYPTO_ZSTD CUSE CYPRESS_FIRMWARE DAMON DAMON_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEFAULT_CODEL 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_AUX_BRIDGE DRM_BOCHS DRM_BRIDGE DRM_BUDDY DRM_CIRRUS_QEMU DRM_CLIENT DRM_CLIENT_DEFAULT_FBDEV DRM_CLIENT_LIB DRM_CLIENT_SELECTION DRM_CLIENT_SETUP DRM_DEBUG_MM DRM_DISPLAY_DP_AUX_BUS DRM_DISPLAY_DP_HELPER DRM_DISPLAY_DSC_HELPER DRM_DISPLAY_HDCP_HELPER DRM_DISPLAY_HDMI_HELPER DRM_DISPLAY_HELPER DRM_FBDEV_EMULATION DRM_GEM_SHMEM_HELPER ENCRYPTED_KEYS FSCACHE FUSE_FS GPIOLIB HAMRADIO HID_DRAGONRISE IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOSCHED_BFQ LIBNVDIMM MAC80211 MAC80211_DEBUGFS MAC80211_LEDS MCORE2 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 WLAN WLAN_VENDOR_ATH X86_X32_ABI ZONE_DEVICE] disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing current HEAD 088d13246a4672bc03aec664675138e3f5bff68c testing commit 088d13246a4672bc03aec664675138e3f5bff68c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4dff70e6cb5585f53908f8e4d817a4cb6d512344aed7909342edfeef2c0dec4f run #0: crashed: KASAN: use-after-free Read in check_dirent run #1: crashed: KASAN: use-after-free Read in check_dirent run #2: crashed: KASAN: use-after-free Read in check_dirent run #3: crashed: KASAN: use-after-free Read in check_dirent run #4: crashed: KASAN: use-after-free Read in check_dirent run #5: crashed: KASAN: use-after-free Read in check_dirent run #6: OK run #7: OK run #8: OK run #9: OK representative crash: KASAN: use-after-free Read in check_dirent, types: [KASAN] crash still not fixed/happens on the oldest tested release revisions tested: 8, total time: 3h28m32.415682691s (build: 2h8m27.786195598s, test: 59m25.312458742s) crash still not fixed or there were kernel test errors commit msg: Merge tag 'kbuild-fixes-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild crash: KASAN: use-after-free Read in check_dirent bcachefs (loop1): check_extents_to_backpointers... done bcachefs (loop1): check_inodes... done bcachefs (loop1): check_extents... done bcachefs (loop1): check_dirents... bcachefs (loop1): dirent points to missing inode: u64s 8 type dirent 4096:6728544935518790663:U32_MAX len 0 ver 0: lost+found -> 4097 type dir, fixing ================================================================== BUG: KASAN: use-after-free in check_dirent+0x21e7/0x22a0 fs/bcachefs/fsck.c:2247 Read of size 1 at addr ffff888117fa4048 by task syz.1.133/6463 CPU: 0 UID: 0 PID: 6463 Comm: syz.1.133 Not tainted 6.15.0-rc6-syzkaller #0 PREEMPT(undef) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x5a/0x90 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:408 [inline] print_report+0xc3/0x670 mm/kasan/report.c:521 kasan_report+0xe0/0x110 mm/kasan/report.c:634 check_dirent+0x21e7/0x22a0 fs/bcachefs/fsck.c:2247 bch2_check_dirents+0x388/0x6b0 fs/bcachefs/fsck.c:2272 bch2_run_recovery_pass+0x7a/0x160 fs/bcachefs/recovery_passes.c:227 bch2_run_recovery_passes+0x2b5/0x7f0 fs/bcachefs/recovery_passes.c:280 bch2_fs_recovery+0x3087/0x3870 fs/bcachefs/recovery.c:974 bch2_fs_start+0x559/0x9a0 fs/bcachefs/super.c:1096 bch2_fs_get_tree+0xcfd/0x1a10 fs/bcachefs/fs.c:2505 vfs_get_tree+0x88/0x240 fs/super.c:1759 do_new_mount fs/namespace.c:3881 [inline] path_mount+0x8c3/0x19b0 fs/namespace.c:4208 do_mount fs/namespace.c:4221 [inline] __do_sys_mount fs/namespace.c:4432 [inline] __se_sys_mount fs/namespace.c:4409 [inline] __x64_sys_mount+0x20f/0x280 fs/namespace.c:4409 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x6d/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f77a378e84a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f77a45d6e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f77a45d6ef0 RCX: 00007f77a378e84a RDX: 0000400000000000 RSI: 0000400000000040 RDI: 00007f77a45d6eb0 RBP: 0000400000000000 R08: 00007f77a45d6ef0 R09: 0000000001000001 R10: 0000000001000001 R11: 0000000000000246 R12: 0000400000000040 R13: 00007f77a45d6eb0 R14: 000000000000595c R15: 0000400000000140 The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x117fa4 flags: 0x100000000000000(node=0|zone=2) raw: 0100000000000000 0000000000000000 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as freed page last allocated via order 5, migratetype Unmovable, gfp_mask 0x52800(GFP_NOWAIT|__GFP_NORETRY|__GFP_COMP), pid 6463, tgid 6461 (syz.1.133), ts 143672041357, free_ts 143885498486 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x12d/0x150 mm/page_alloc.c:1718 prep_new_page mm/page_alloc.c:1726 [inline] get_page_from_freelist+0x1232/0x4470 mm/page_alloc.c:3688 __alloc_frozen_pages_noprof+0x20c/0x470 mm/page_alloc.c:4970 __alloc_pages_noprof+0xb/0x1b0 mm/page_alloc.c:5004 __alloc_pages_node_noprof include/linux/gfp.h:284 [inline] alloc_pages_node_noprof include/linux/gfp.h:311 [inline] ___kmalloc_large_node+0x85/0x1a0 mm/slub.c:4271 __kmalloc_large_node_noprof+0x18/0xc0 mm/slub.c:4299 __do_kmalloc_node mm/slub.c:4315 [inline] __kvmalloc_node_noprof+0x4a4/0x650 mm/slub.c:5012 btree_bounce_alloc+0x109/0x1f0 fs/bcachefs/btree_io.c:125 btree_node_sort+0x3c5/0x14c0 fs/bcachefs/btree_io.c:324 bch2_btree_post_write_cleanup fs/bcachefs/btree_io.c:2515 [inline] bch2_btree_post_write_cleanup+0x107/0x870 fs/bcachefs/btree_io.c:2489 bch2_btree_node_prep_for_write+0x2b1/0x4a0 fs/bcachefs/btree_trans_commit.c:93 bch2_trans_lock_write+0x52c/0x9f0 fs/bcachefs/btree_trans_commit.c:129 do_bch2_trans_commit fs/bcachefs/btree_trans_commit.c:840 [inline] __bch2_trans_commit+0x2207/0x7120 fs/bcachefs/btree_trans_commit.c:1050 bch2_trans_commit fs/bcachefs/btree_update.h:195 [inline] __bch2_str_hash_check_key+0x1126/0x3410 fs/bcachefs/str_hash.c:292 bch2_str_hash_check_key fs/bcachefs/str_hash.h:414 [inline] check_dirent+0xdf6/0x22a0 fs/bcachefs/fsck.c:2177 bch2_check_dirents+0x388/0x6b0 fs/bcachefs/fsck.c:2272 page last free pid 6463 tgid 6461 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1262 [inline] __free_pages_ok+0x667/0xef0 mm/page_alloc.c:1438 __folio_put+0x257/0x350 mm/swap.c:112 btree_bounce_free fs/bcachefs/btree_io.c:113 [inline] btree_node_sort+0xe53/0x14c0 fs/bcachefs/btree_io.c:381 bch2_btree_post_write_cleanup fs/bcachefs/btree_io.c:2515 [inline] bch2_btree_post_write_cleanup+0x107/0x870 fs/bcachefs/btree_io.c:2489 bch2_btree_node_prep_for_write+0x2b1/0x4a0 fs/bcachefs/btree_trans_commit.c:93 bch2_trans_lock_write+0x52c/0x9f0 fs/bcachefs/btree_trans_commit.c:129 do_bch2_trans_commit fs/bcachefs/btree_trans_commit.c:840 [inline] __bch2_trans_commit+0x2207/0x7120 fs/bcachefs/btree_trans_commit.c:1050 bch2_trans_commit fs/bcachefs/btree_update.h:195 [inline] check_dirent+0xbaf/0x22a0 fs/bcachefs/fsck.c:2242 bch2_check_dirents+0x388/0x6b0 fs/bcachefs/fsck.c:2272 bch2_run_recovery_pass+0x7a/0x160 fs/bcachefs/recovery_passes.c:227 bch2_run_recovery_passes+0x2b5/0x7f0 fs/bcachefs/recovery_passes.c:280 bch2_fs_recovery+0x3087/0x3870 fs/bcachefs/recovery.c:974 bch2_fs_start+0x559/0x9a0 fs/bcachefs/super.c:1096 bch2_fs_get_tree+0xcfd/0x1a10 fs/bcachefs/fs.c:2505 vfs_get_tree+0x88/0x240 fs/super.c:1759 do_new_mount fs/namespace.c:3881 [inline] path_mount+0x8c3/0x19b0 fs/namespace.c:4208 Memory state around the buggy address: ffff888117fa3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff888117fa3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff888117fa4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff888117fa4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff888117fa4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ================================================================== done bcachefs (loop1): resume_logged_ops... done bcachefs (loop1): delete_dead_inodes... done bcachefs (loop1): Second fsck run was not clean bcachefs (loop1): going read-only bcachefs (loop1): finished waiting for writes to stop bcachefs (loop1): flushing journal and stopping allocators, journal seq 24 bcachefs (loop1): flushing journal and stopping allocators complete, journal seq 24 bcachefs (loop1): clean shutdown complete, journal seq 25 bcachefs (loop1): marking filesystem clean bcachefs (loop1): done starting filesystem