ci2 starts bisection 2025-06-10 04:07:31.490837565 +0000 UTC m=+266687.405542431 bisecting cause commit starting from 19272b37aa4f83ca52bdf9c16d5d81bdd1354494 building syzkaller on 4826c28ef2aca1ee7dba7111e48d3b6a9c83d9a8 ensuring issue is reproducible on original commit 19272b37aa4f83ca52bdf9c16d5d81bdd1354494 testing commit 19272b37aa4f83ca52bdf9c16d5d81bdd1354494 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: b96fb8204b72cbcde4e9db6ba0d88e3349549c06439cd2cb21755d9e241c9262 run #0: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #1: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #2: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #3: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #4: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #5: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #6: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #7: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #8: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #9: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #10: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #11: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #12: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #13: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #14: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #15: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #16: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #17: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #18: crashed: KFENCE: use-after-free in bch2_str_hash_repair_key run #19: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key representative crash: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key, 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 19272b37aa4f83ca52bdf9c16d5d81bdd1354494 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 311ee5083b912538d1a640e39516ed5a203b0791f80e0e5f50e4cc14c1865d3c all runs: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key representative crash: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key, 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=4084 full=8356 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 [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 19272b37aa4f83ca52bdf9c16d5d81bdd1354494 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 3709ce3a316d446dd4d4061bcab47ba4174ea039d1545b24341d47a68fed4b8b 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 19272b37aa4f83ca52bdf9c16d5d81bdd1354494 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 32ca4b2b5f228b33ba0d937b0c9bbd49a5b7ea4c36d7e848564d18641ff7a0f0 all runs: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key representative crash: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key, 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 19272b37aa4f83ca52bdf9c16d5d81bdd1354494 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: c9dc9d25da783cde37829016051d8c05c7ecb45d017a16e3a0158c62ddff5c81 all runs: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key representative crash: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key, 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 19272b37aa4f83ca52bdf9c16d5d81bdd1354494 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: a7ec59a56638a70629ea0048dd09b39a36c2c6fb65c55efbe322377caa778b2b all runs: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key representative crash: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key, types: [KASAN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 19272b37aa4f83ca52bdf9c16d5d81bdd1354494 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: adb5b7de59ae2eeb5c3b94c16eb25dc3bb5a69dc03c78524bff81e5b1802fe19 run #0: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #1: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #2: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #3: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #4: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #5: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #6: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #7: crashed: KFENCE: use-after-free in bch2_str_hash_repair_key run #8: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key run #9: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key representative crash: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key, 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_MRRM 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_BINDERFS 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 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 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 CRC64 CRC64_ARCH CRC8 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_ARCH_HAVE_LIB_SHA256 CRYPTO_ARCH_HAVE_LIB_SHA256_SIMD 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_CRC32C 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_HKDF CRYPTO_KDF800108_CTR CRYPTO_KHAZAD CRYPTO_KPP CRYPTO_KRB5 CRYPTO_KRB5ENC CRYPTO_LIB_ARC4 CRYPTO_LIB_CHACHA CRYPTO_LIB_CHACHA20POLY1305 CRYPTO_LIB_CHACHA_GENERIC CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_CURVE25519_INTERNAL CRYPTO_LIB_DES CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LIB_SHA256_GENERIC CRYPTO_LIB_SM3 CRYPTO_LRW CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_MICHAEL_MIC CRYPTO_NHPOLY1305 CRYPTO_NHPOLY1305_AVX2 CRYPTO_NHPOLY1305_SSE2 CRYPTO_PCBC CRYPTO_PCRYPT 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_X86_64 CRYPTO_SHA512_SSSE3 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 DEBUG_VFS 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_HELPER DRM_FBDEV_EMULATION 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 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 ZONE_DEVICE] disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed picked [v6.15 v6.14 v6.13 v6.11 v6.9 v6.7 v6.5 v6.3 v6.0 v5.17 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 38 release tags testing release v6.15 testing commit 0ff41df1cb268fc69e703a08a57ee14ae967d0ca gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 8369bd1603235c8eafbb12fc5d23a9a6023ef11823846951404e59e90c83605e all runs: OK false negative chance: 0.000 # git bisect start 19272b37aa4f83ca52bdf9c16d5d81bdd1354494 0ff41df1cb268fc69e703a08a57ee14ae967d0ca Bisecting: 6191 revisions left to test after this (roughly 13 steps) [1b98f357dadd6ea613a435fbaef1a5dd7b35fd21] Merge tag 'net-next-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next testing commit 1b98f357dadd6ea613a435fbaef1a5dd7b35fd21 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 9283e80146149e3aeb9816c424a1980af8a2341147b23d5e191d1a821dd9dc08 all runs: OK false negative chance: 0.000 # git bisect good 1b98f357dadd6ea613a435fbaef1a5dd7b35fd21 Bisecting: 3103 revisions left to test after this (roughly 12 steps) [00c010e130e58301db2ea0cec1eadc931e1cb8cf] Merge tag 'mm-stable-2025-05-31-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm testing commit 00c010e130e58301db2ea0cec1eadc931e1cb8cf gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 16edff53d2e450a434ec95210ff2f95fb4366119f42fbc81f8cdc99fe6e540c4 all runs: OK false negative chance: 0.000 # git bisect good 00c010e130e58301db2ea0cec1eadc931e1cb8cf Bisecting: 1551 revisions left to test after this (roughly 11 steps) [bfdf35c5dc6267f70f76abddfacface4dd3b9ac0] Merge tag 'dmaengine-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine testing commit bfdf35c5dc6267f70f76abddfacface4dd3b9ac0 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 79af425922e91883d58abffcd3fceccddaca66a2bd31a5184636c7d1ccdc6ab4 all runs: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key representative crash: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key, types: [KASAN] # git bisect bad bfdf35c5dc6267f70f76abddfacface4dd3b9ac0 Bisecting: 749 revisions left to test after this (roughly 10 steps) [29e9359005dd1ac5f9683608891718e6a32a20a3] Merge tag 'cxl-for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl testing commit 29e9359005dd1ac5f9683608891718e6a32a20a3 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 7283e3ca7813a67b0c5b67c26f4e1d6145b8e2e01b562a626552afd16141ea30 all runs: OK false negative chance: 0.000 # git bisect good 29e9359005dd1ac5f9683608891718e6a32a20a3 Bisecting: 450 revisions left to test after this (roughly 9 steps) [1af80d00e1e026c317c6ec19b1072f81ba7af64c] Merge tag 'slab-for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab testing commit 1af80d00e1e026c317c6ec19b1072f81ba7af64c gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 1f8b35dc54b6dea49c467c09a748363051c3bdaa8fc6b7f8a8b7762c4669b235 all runs: OK false negative chance: 0.000 # git bisect good 1af80d00e1e026c317c6ec19b1072f81ba7af64c Bisecting: 202 revisions left to test after this (roughly 8 steps) [ff0905bbf991f4337b5ebc19c0d43525ebb0d96b] Merge tag 'bcachefs-2025-06-04' of git://evilpiepirate.org/bcachefs testing commit ff0905bbf991f4337b5ebc19c0d43525ebb0d96b gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 44ff06e1f9749a5e6b58c89ef43f71a70d3b8c94a77ee1570f4e1b485eba2062 all runs: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key representative crash: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key, types: [KASAN] # git bisect bad ff0905bbf991f4337b5ebc19c0d43525ebb0d96b Bisecting: 123 revisions left to test after this (roughly 7 steps) [c7b9c591245e32b5c7b235f48485497e1e8f9e2a] Merge branch 'pci/controller/mvebu' testing commit c7b9c591245e32b5c7b235f48485497e1e8f9e2a gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 0e9715eac47dd479f4ca13b876fc6308409607a0acbf93954cb2221494326a62 all runs: OK false negative chance: 0.000 # git bisect good c7b9c591245e32b5c7b235f48485497e1e8f9e2a Bisecting: 61 revisions left to test after this (roughly 6 steps) [2bf380c005adcc653464215a5170afa3367c0b22] bcachefs: Fix dirent_casefold_mismatch repair testing commit 2bf380c005adcc653464215a5170afa3367c0b22 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 56fb9bc134a4e54ef28b38322ddf94a60005bf0896b53a9d0d5664b8877006f0 all runs: crashed: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key representative crash: KASAN: slab-use-after-free Read in bch2_str_hash_repair_key, types: [KASAN] # git bisect bad 2bf380c005adcc653464215a5170afa3367c0b22 Bisecting: 30 revisions left to test after this (roughly 5 steps) [642c1aabb001ee8410e6bfb6654b23bcead64e4e] bcachefs: Use bch2_err_matches() for BCH_ERR_fsck_(fix|ignore) testing commit 642c1aabb001ee8410e6bfb6654b23bcead64e4e gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 1b69d52fb4c992e415ccc2f4831e0f70f350acb3f38723b3031685db30f3edff all runs: OK false negative chance: 0.000 # git bisect good 642c1aabb001ee8410e6bfb6654b23bcead64e4e Bisecting: 15 revisions left to test after this (roughly 4 steps) [9cb49fbf734609c79ba29c43d98e1230ecd1361a] bcachefs: CLASS(btree_trans) testing commit 9cb49fbf734609c79ba29c43d98e1230ecd1361a gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 51cdfb70a34de414cc441f50a6017d990504efb9370db9bb2a01027e2b0bf4ca run #0: crashed: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key run #1: crashed: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key run #2: crashed: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key run #3: crashed: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key run #4: crashed: KFENCE: use-after-free in __bch2_str_hash_check_key run #5: crashed: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key run #6: crashed: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key run #7: crashed: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key run #8: crashed: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key run #9: crashed: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key representative crash: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key, types: [KASAN] # git bisect bad 9cb49fbf734609c79ba29c43d98e1230ecd1361a Bisecting: 7 revisions left to test after this (roughly 3 steps) [f402d9710b3e55fa2e47a939f69e4267d6d4406f] bcachefs: bch2_readdir() now calls str_hash_check_key() testing commit f402d9710b3e55fa2e47a939f69e4267d6d4406f gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 1b800adc66c8d9a45cd24141be36056be210a4076f4e5bb8443e2dd9dbb6ac66 run #0: crashed: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key run #1: crashed: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key run #2: crashed: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key run #3: crashed: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key run #4: crashed: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key run #5: crashed: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key run #6: crashed: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key run #7: crashed: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key run #8: crashed: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key run #9: crashed: KFENCE: use-after-free in __bch2_str_hash_check_key representative crash: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key, types: [KASAN] # git bisect bad f402d9710b3e55fa2e47a939f69e4267d6d4406f Bisecting: 3 revisions left to test after this (roughly 2 steps) [d21262d4e35d448cbc80092c91f04cc0a5f2b0b4] bcachefs: bch2_dev_journal_bucket_delete() testing commit d21262d4e35d448cbc80092c91f04cc0a5f2b0b4 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: f684cdc0f727a246e200d331c2728fc1809eebeddd8266698034a164e97e51e4 all runs: OK false negative chance: 0.000 # git bisect good d21262d4e35d448cbc80092c91f04cc0a5f2b0b4 Bisecting: 1 revision left to test after this (roughly 1 step) [cb6f5d0decea51225b297b0ad3c393de12d68bf0] bcachefs: __bch2_insert_snapshot_whiteouts() refactoring testing commit cb6f5d0decea51225b297b0ad3c393de12d68bf0 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 7faadc47cef37f674f37d71a1f44f8f36be97d03642677bad6b68eaafb1546bd all runs: OK false negative chance: 0.000 # git bisect good cb6f5d0decea51225b297b0ad3c393de12d68bf0 Bisecting: 0 revisions left to test after this (roughly 0 steps) [a5922682602788a0f9b37d58e15d7247ad6c54d4] bcachefs: bch2_str_hash_check_key() may now be called without snapshots_seen testing commit a5922682602788a0f9b37d58e15d7247ad6c54d4 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 3ff81b3a33028bf2429beb3221f78e23f99c69b33c321436b0abbc90676e4e21 all runs: OK false negative chance: 0.000 # git bisect good a5922682602788a0f9b37d58e15d7247ad6c54d4 f402d9710b3e55fa2e47a939f69e4267d6d4406f is the first bad commit commit f402d9710b3e55fa2e47a939f69e4267d6d4406f Author: Kent Overstreet Date: Wed May 28 16:34:42 2025 -0400 bcachefs: bch2_readdir() now calls str_hash_check_key() More self healing code: readdir will now notice if there are dirents hashed incorrectly, and it'll repair them if errors=fix_safe. Signed-off-by: Kent Overstreet fs/bcachefs/dirent.c | 9 +++++++-- fs/bcachefs/dirent.h | 2 +- fs/bcachefs/fs.c | 3 ++- 3 files changed, 10 insertions(+), 4 deletions(-) accumulated error probability: 0.00 culprit signature: 1b800adc66c8d9a45cd24141be36056be210a4076f4e5bb8443e2dd9dbb6ac66 parent signature: 3ff81b3a33028bf2429beb3221f78e23f99c69b33c321436b0abbc90676e4e21 revisions tested: 22, total time: 6h23m44.841247166s (build: 3h0m18.592358679s, test: 2h58m38.03752074s) first bad commit: f402d9710b3e55fa2e47a939f69e4267d6d4406f bcachefs: bch2_readdir() now calls str_hash_check_key() recipients (to): ["kent.overstreet@linux.dev"] recipients (cc): [] crash: KASAN: slab-use-after-free Read in __bch2_str_hash_check_key bcachefs (loop2): hash table key at wrong offset: btree dirents inode 4096 offset 4330382808765833931, hashed to 8607060773457356477 u64s 7 type dirent 4096:4330382808765833931:U32_MAX len 0 ver 0:  -> 536870912 type unknown, fixing ================================================================== BUG: KASAN: slab-use-after-free in __bch2_str_hash_check_key+0xb22/0x3ac0 fs/bcachefs/str_hash.c:261 Read of size 8 at addr ffff888176e3e028 by task syz-executor/2959 CPU: 1 UID: 0 PID: 2959 Comm: syz-executor Not tainted 6.15.0-rc4-syzkaller #0 PREEMPT(undef) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace: dump_stack_lvl+0xf4/0x170 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:408 [inline] print_report+0xb4/0x290 mm/kasan/report.c:521 kasan_report+0x118/0x150 mm/kasan/report.c:634 __bch2_str_hash_check_key+0xb22/0x3ac0 fs/bcachefs/str_hash.c:261 bch2_str_hash_check_key fs/bcachefs/str_hash.h:418 [inline] bch2_readdir+0xf10/0x15c0 fs/bcachefs/dirent.c:702 bch2_vfs_readdir+0x3d0/0x530 fs/bcachefs/fs.c:1581 iterate_dir+0x1a7/0x4c0 fs/readdir.c:108 __do_sys_getdents64 fs/readdir.c:403 [inline] __se_sys_getdents64+0xd3/0x1a0 fs/readdir.c:389 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x8f/0x170 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f95105c1293 Code: c1 66 0f 1f 44 00 00 48 83 c4 08 48 89 ef 5b 5d e9 72 3e f8 ff 66 90 b8 ff ff ff 7f 48 39 c2 48 0f 47 d0 b8 d9 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 c7 c2 a8 ff ff ff f7 d8 RSP: 002b:00007ffd1f893688 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9 RAX: ffffffffffffffda RBX: 000055556ad04600 RCX: 00007f95105c1293 RDX: 0000000000008000 RSI: 000055556ad04600 RDI: 0000000000000005 RBP: 000055556ad045d4 R08: 0000000000028a41 R09: 0000000000000000 R10: 00007f9510784ca0 R11: 0000000000000293 R12: ffffffffffffffa8 R13: 0000000000000010 R14: 000055556ad045d0 R15: 00007ffd1f895940 Allocated by task 2959: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4341 [inline] __kmalloc_node_track_caller_noprof+0x25f/0x4f0 mm/slub.c:4360 __do_krealloc mm/slub.c:4918 [inline] krealloc_noprof+0x122/0x300 mm/slub.c:4971 __bch2_trans_kmalloc+0x19d/0x980 fs/bcachefs/btree_iter.c:3187 bch2_trans_kmalloc_nomemzero_ip fs/bcachefs/btree_iter.h:586 [inline] bch2_trans_kmalloc_nomemzero fs/bcachefs/btree_iter.h:621 [inline] __bch2_bkey_make_mut_noupdate fs/bcachefs/btree_update.h:285 [inline] bch2_bkey_make_mut_noupdate fs/bcachefs/btree_update.h:300 [inline] __bch2_str_hash_check_key+0x1e7c/0x3ac0 fs/bcachefs/str_hash.c:292 bch2_str_hash_check_key fs/bcachefs/str_hash.h:418 [inline] bch2_readdir+0xf10/0x15c0 fs/bcachefs/dirent.c:702 bch2_vfs_readdir+0x3d0/0x530 fs/bcachefs/fs.c:1581 iterate_dir+0x1a7/0x4c0 fs/readdir.c:108 __do_sys_getdents64 fs/readdir.c:403 [inline] __se_sys_getdents64+0xd3/0x1a0 fs/readdir.c:389 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x8f/0x170 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 2959: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x62/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2398 [inline] slab_free mm/slub.c:4656 [inline] kfree+0x179/0x3e0 mm/slub.c:4855 krealloc_noprof+0x1cb/0x300 mm/slub.c:-1 __bch2_trans_kmalloc+0x19d/0x980 fs/bcachefs/btree_iter.c:3187 bch2_trans_kmalloc_ip fs/bcachefs/btree_iter.h:604 [inline] bch2_trans_kmalloc fs/bcachefs/btree_iter.h:616 [inline] bch2_hash_delete_at fs/bcachefs/str_hash.h:363 [inline] __bch2_str_hash_check_key+0x3003/0x3ac0 fs/bcachefs/str_hash.c:310 bch2_str_hash_check_key fs/bcachefs/str_hash.h:418 [inline] bch2_readdir+0xf10/0x15c0 fs/bcachefs/dirent.c:702 bch2_vfs_readdir+0x3d0/0x530 fs/bcachefs/fs.c:1581 iterate_dir+0x1a7/0x4c0 fs/readdir.c:108 __do_sys_getdents64 fs/readdir.c:403 [inline] __se_sys_getdents64+0xd3/0x1a0 fs/readdir.c:389 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x8f/0x170 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff888176e3e000 which belongs to the cache kmalloc-128 of size 128 The buggy address is located 40 bytes inside of freed 128-byte region [ffff888176e3e000, ffff888176e3e080) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x176e3e anon flags: 0x100000000000000(node=0|zone=2) page_type: f5(slab) raw: 0100000000000000 ffff888100041a00 ffffea0005db89c0 dead000000000003 raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 1442, tgid 1442 (udevd), ts 10470055918, free_ts 7418661746 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0xec/0x120 mm/page_alloc.c:1718 prep_new_page mm/page_alloc.c:1726 [inline] get_page_from_freelist+0x3bf8/0x3d50 mm/page_alloc.c:3688 __alloc_frozen_pages_noprof+0x26b/0x460 mm/page_alloc.c:4970 alloc_pages_mpol+0x150/0x320 mm/mempolicy.c:2301 alloc_slab_page mm/slub.c:2468 [inline] allocate_slab+0x8a/0x350 mm/slub.c:2632 new_slab mm/slub.c:2686 [inline] ___slab_alloc+0x9dc/0x10e0 mm/slub.c:3872 __slab_alloc mm/slub.c:3962 [inline] __slab_alloc_node mm/slub.c:4037 [inline] slab_alloc_node mm/slub.c:4198 [inline] __do_kmalloc_node mm/slub.c:4340 [inline] __kmalloc_noprof+0x2e8/0x500 mm/slub.c:4353 kmalloc_noprof include/linux/slab.h:909 [inline] kzalloc_noprof include/linux/slab.h:1039 [inline] tomoyo_encode2 security/tomoyo/realpath.c:45 [inline] tomoyo_encode+0xa5/0x460 security/tomoyo/realpath.c:80 tomoyo_realpath_from_path+0x51a/0x550 security/tomoyo/realpath.c:283 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_check_open_permission+0x1a6/0x520 security/tomoyo/file.c:771 security_file_open+0x45/0xd0 security/security.c:3114 do_dentry_open+0x2fd/0x1060 fs/open.c:933 vfs_open+0x36/0x2b0 fs/open.c:1086 do_open fs/namei.c:3880 [inline] path_openat+0x23e3/0x2bb0 fs/namei.c:4039 do_filp_open+0x1e4/0x3c0 fs/namei.c:4066 do_sys_openat2+0xfa/0x180 fs/open.c:1429 page last free pid 1 tgid 1 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1262 [inline] __free_frozen_pages+0x9f9/0xbe0 mm/page_alloc.c:2725 __free_pages mm/page_alloc.c:5080 [inline] free_contig_range+0x149/0x3b0 mm/page_alloc.c:6936 destroy_args+0x6d/0x360 mm/debug_vm_pgtable.c:1017 debug_vm_pgtable+0x2d0/0x460 mm/debug_vm_pgtable.c:1397 do_one_initcall+0x194/0x4d0 init/main.c:1257 do_initcall_level+0x117/0x1d0 init/main.c:1319 do_initcalls+0x59/0xa0 init/main.c:1335 kernel_init_freeable+0x306/0x460 init/main.c:1567 kernel_init+0x17/0x130 init/main.c:1457 ret_from_fork+0x32/0x70 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Memory state around the buggy address: ffff888176e3df00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888176e3df80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888176e3e000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888176e3e080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888176e3e100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================