ci2 starts bisection 2025-05-08 05:52:17.435958054 +0000 UTC m=+47275.767530086 bisecting fixing commit since 09996673e3139a6d86fc3d95c852b3a020e2fe5f building syzkaller on 924768299f97ac88b84f09eb979919305c8af5bb ensuring issue is reproducible on original commit 09996673e3139a6d86fc3d95c852b3a020e2fe5f testing commit 09996673e3139a6d86fc3d95c852b3a020e2fe5f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 15923ad88edd3c1cb327aa5eee8de4bcd4a3283827f333c708ee3023c7d2380f run #0: crashed: possible deadlock in j1939_sk_queue_drop_all run #1: crashed: possible deadlock in j1939_sk_queue_drop_all run #2: crashed: possible deadlock in j1939_sk_queue_drop_all run #3: crashed: possible deadlock in j1939_sk_queue_drop_all run #4: crashed: possible deadlock in j1939_sk_queue_drop_all run #5: crashed: possible deadlock in j1939_session_activate run #6: crashed: possible deadlock in j1939_session_activate run #7: crashed: possible deadlock in j1939_session_activate run #8: crashed: possible deadlock in j1939_sk_queue_drop_all run #9: crashed: possible deadlock in j1939_session_activate run #10: crashed: possible deadlock in j1939_sk_queue_drop_all run #11: crashed: possible deadlock in j1939_sk_queue_drop_all run #12: crashed: possible deadlock in j1939_sk_queue_drop_all run #13: crashed: possible deadlock in j1939_session_activate run #14: crashed: possible deadlock in j1939_sk_queue_drop_all run #15: crashed: possible deadlock in j1939_session_activate run #16: crashed: possible deadlock in j1939_session_activate run #17: crashed: possible deadlock in j1939_session_activate run #18: crashed: possible deadlock in j1939_sk_queue_drop_all run #19: crashed: possible deadlock in j1939_session_activate representative crash: possible deadlock in j1939_sk_queue_drop_all, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [LEAK UBSAN BUG KASAN ATOMIC_SLEEP HANG], they are not needed testing commit 09996673e3139a6d86fc3d95c852b3a020e2fe5f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4f15e0b23ad7263236aeef14bce4e4278dfad76311bf698bc3bd7c577eea785f run #0: crashed: possible deadlock in j1939_sk_queue_drop_all run #1: crashed: possible deadlock in j1939_sk_queue_drop_all run #2: crashed: possible deadlock in j1939_sk_queue_drop_all run #3: crashed: possible deadlock in j1939_sk_queue_drop_all run #4: crashed: possible deadlock in j1939_session_activate run #5: crashed: possible deadlock in j1939_sk_queue_drop_all run #6: crashed: possible deadlock in j1939_sk_queue_drop_all run #7: crashed: possible deadlock in j1939_sk_queue_drop_all run #8: crashed: possible deadlock in j1939_sk_queue_drop_all run #9: crashed: possible deadlock in j1939_sk_queue_drop_all representative crash: possible deadlock in j1939_sk_queue_drop_all, types: [LOCKDEP] the bug reproduces without the instrumentation disabling configs for [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed kconfig minimization: base=3707 full=7267 leaves diff=1988 split chunks (needed=false): <1988> split chunk #0 of len 1988 into 5 parts testing without sub-chunk 1/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 09996673e3139a6d86fc3d95c852b3a020e2fe5f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e6c3f50856a03e0b832c726a6bbf5a17676f961e240ab0d4ebb9dc1503700033 all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 09996673e3139a6d86fc3d95c852b3a020e2fe5f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b88f9e010c60ae4032319729fae5c2a50310ea5985ec2638cd03212bc2b30541 run #0: crashed: possible deadlock in j1939_sk_queue_drop_all run #1: crashed: possible deadlock in j1939_sk_queue_drop_all run #2: crashed: possible deadlock in j1939_sk_queue_drop_all run #3: crashed: possible deadlock in j1939_sk_queue_drop_all run #4: crashed: possible deadlock in j1939_sk_queue_drop_all run #5: crashed: possible deadlock in j1939_sk_queue_drop_all run #6: crashed: possible deadlock in j1939_session_activate run #7: crashed: possible deadlock in j1939_sk_queue_drop_all run #8: crashed: possible deadlock in j1939_sk_queue_drop_all run #9: crashed: possible deadlock in j1939_sk_queue_drop_all representative crash: possible deadlock in j1939_sk_queue_drop_all, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit 09996673e3139a6d86fc3d95c852b3a020e2fe5f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 35d9e7d57c8584e5f1d60afeb7f91bf4934b09773c7dcaea8c85c82a435cd5f5 all runs: crashed: possible deadlock in j1939_sk_queue_drop_all representative crash: possible deadlock in j1939_sk_queue_drop_all, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN BUG KASAN ATOMIC_SLEEP HANG], they are not needed testing commit 09996673e3139a6d86fc3d95c852b3a020e2fe5f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e74acff836eed4557f86311357a472693d9e2833f906395362ffad916efedcfc all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 09996673e3139a6d86fc3d95c852b3a020e2fe5f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e1a5f94c80ed0b59e139dd8fe5d6406c2cc57486468df2afb08d0ce63fa1335a run #0: crashed: possible deadlock in j1939_sk_queue_drop_all run #1: crashed: possible deadlock in j1939_sk_queue_drop_all run #2: crashed: possible deadlock in j1939_sk_queue_drop_all run #3: crashed: possible deadlock in j1939_sk_queue_drop_all run #4: crashed: possible deadlock in j1939_sk_queue_drop_all run #5: crashed: possible deadlock in j1939_sk_queue_drop_all run #6: crashed: possible deadlock in j1939_sk_queue_drop_all run #7: crashed: possible deadlock in j1939_sk_errqueue run #8: crashed: possible deadlock in j1939_sk_queue_drop_all run #9: crashed: possible deadlock in j1939_sk_queue_drop_all representative crash: possible deadlock in j1939_sk_queue_drop_all, types: [LOCKDEP] the chunk can be dropped minimized to 796 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 ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMIGA_PARTITION ANDROID ANDROID_BINDERFS ANDROID_BINDER_IPC AR5523 ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ASHMEM ASM_MODVERSIONS ASN1_ENCODER ASYMMETRIC_TPM_KEY_SUBTYPE 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 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 BLK_CGROUP_IOCOST BLK_CGROUP_IOLATENCY BLK_CGROUP_RWSTAT BLK_DEBUG_FS_ZONED BLK_DEV_BSGLIB BLK_DEV_CRYPTOLOOP 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_DEV_ZONED BLK_INLINE_ENCRYPTION BLK_INLINE_ENCRYPTION_FALLBACK BLK_MQ_RDMA BLK_RQ_ALLOC_TIME BLK_WBT BLK_WBT_MQ BONDING 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_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_MSFTEXT 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_USB2 CAN_GS_USB CAN_GW CAN_IFI_CANFD CAN_ISOTP CAN_J1939 CAN_KVASER_USB CAN_MCBA_USB CAN_PEAK_USB CAN_RAW CAN_SLCAN CAN_VCAN CAN_VXCAN CAPI_TRACE CARL9170 CARL9170_HWRNG CARL9170_LEDS CARL9170_WPC CC_HAS_AUTO_VAR_INIT_ZERO_ENABLER 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 CGROUP_DEVICE CGROUP_HUGETLB CGROUP_NET_CLASSID CGROUP_NET_PRIO CGROUP_PERF CGROUP_RDMA CGROUP_WRITEBACK 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 CRC7 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_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_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_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_LIB_SM4 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_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_SHA3 CRYPTO_SHA512_SSSE3 CRYPTO_SIMD CRYPTO_SM2 CRYPTO_SM3 CRYPTO_SM4 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_XTS CRYPTO_XXHASH CUSE CYPRESS_FIRMWARE DAMON DAMON_DBGFS DAMON_VADDR DAX DCA DCB DEBUG_PREEMPT DEFAULT_PFIFO_FAST DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DEV_PAGEMAP_OPS DIMLIB DLM DLN2_ADC DMABUF_HEAPS DMABUF_HEAPS_CMA DMABUF_HEAPS_SYSTEM DMABUF_MOVE_NOTIFY DMA_CMA DMA_ENGINE_RAID 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 DRM_CIRRUS_QEMU DRM_DEBUG_MM DRM_DP_AUX_CHARDEV DRM_GEM_SHMEM_HELPER DRM_I915 DRM_I915_CAPTURE_ERROR DRM_I915_COMPRESS_ERROR DRM_I915_USERPTR DRM_KMS_HELPER DVB_CORE ENCRYPTED_KEYS EXTCON FSCACHE FUSE_FS GENEVE GPIOLIB HAMRADIO HID_DRAGONRISE 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 LIBCRC32C 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_CONNCOUNT NET_CLS_U32 NET_IPGRE NET_IPGRE_DEMUX NET_SCH_DEFAULT NFS_V4_1 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_REPORTING PAHOLE_HAS_SPLIT_BTF PARPORT PARPORT_NOT_PC PARTITION_ADVANCED PCCARD PCCARD_NONSTATIC PCIEAER PCI_ENDPOINT PCI_IOV PCMCIA PCMCIA_LOAD_CIS PERCPU_STATS PERSISTENT_KEYRINGS PHONET PHYLINK PHY_CPCAP_USB PHY_QCOM_USB_HS PHY_QCOM_USB_HSIC PHY_SAMSUNG_USB2 PHY_TUSB1210 PKCS7_TEST_KEY PKCS8_PRIVATE_KEY_PARSER PNFS_BLOCK PNFS_FILE_LAYOUT PNFS_FLEXFILE_LAYOUT PPP PPPOATM PPPOE PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPTION PREEMPT_DYNAMIC PREEMPT_NOTIFIERS PREEMPT_RCU PRISM2_USB PROC_CHILDREN PSI PSTORE PSTORE_842_COMPRESS PSTORE_COMPRESS PSTORE_DEFLATE_COMPRESS PSTORE_DEFLATE_COMPRESS_DEFAULT PSTORE_LZ4HC_COMPRESS PSTORE_LZ4_COMPRESS PSTORE_LZO_COMPRESS PSTORE_ZSTD_COMPRESS QCOM_QMI_HELPERS QNX4FS_FS QNX6FS_FS QRTR QRTR_TUN R8712U RADIO_ADAPTERS RADIO_SHARK RADIO_SHARK2 RADIO_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_COMMON SMC SMC_DIAG SMSC_PHY SMS_SIANO_MDTV SMS_SIANO_RC SMS_USB_DRV SND SND_ALOOP SND_BCD2000 SND_CTL_LED SND_CTL_VALIDATION 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_CGROUP_DATA SOCK_VALIDATE_XMIT SOLARIS_X86_PARTITION SONY_FF SOUND SOUND_OSS_CORE SOUND_OSS_CORE_PRECLAIM SPECULATION_MITIGATIONS SPI SPI_DLN2 SPI_DYNAMIC SPI_MASTER SQUASHFS SQUASHFS_4K_DEVBLK_SIZE 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 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_RCU TASKS_RCU_GENERIC 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 TPM_KEY_PARSER 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_GENERIC USB_CHIPIDEA_HOST USB_CHIPIDEA_IMX USB_CHIPIDEA_MSM USB_CHIPIDEA_PCI USB_CHIPIDEA_TEGRA USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_CONFIGFS_F_FS USB_CONFIGFS_F_HID USB_CONFIGFS_F_LB_SS USB_CONFIGFS_F_MIDI 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 VIDEO_V4L2 VLAN_8021Q VXLAN WANT_COMPAT_NETLINK_MESSAGES WEXT_CORE WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ATH X86_X32 ZONE_DEVICE] disabling configs for [LEAK UBSAN BUG KASAN ATOMIC_SLEEP HANG], they are not needed testing current HEAD 16fdf2c7111bd6927f16c3e811f5086fecebbf00 testing commit 16fdf2c7111bd6927f16c3e811f5086fecebbf00 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6b89f291349cde2a32a5658acf10bf8039e4eac7ce5f05498ae1c096731ba7e2 all runs: OK false negative chance: 0.000 # git bisect start 16fdf2c7111bd6927f16c3e811f5086fecebbf00 09996673e3139a6d86fc3d95c852b3a020e2fe5f Bisecting: 5444 revisions left to test after this (roughly 12 steps) [cc9ac419351b5cb3fcf21603e7c0697a93245305] bpf: Fix out of bounds access for ringbuf helpers determine whether the revision contains the guilty commit revision 09996673e3139a6d86fc3d95c852b3a020e2fe5f crashed and is reachable testing commit cc9ac419351b5cb3fcf21603e7c0697a93245305 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8de81fac8808e50b4a4f6d1061dfa8118185d46983d10842c795c12f11c8986b run #0: OK run #1: OK run #2: crashed: unregister_netdevice: waiting for DEV to become free run #3: OK run #4: crashed: unregister_netdevice: waiting for DEV to become free run #5: OK run #6: OK run #7: crashed: unregister_netdevice: waiting for DEV to become free run #8: OK run #9: crashed: unregister_netdevice: waiting for DEV to become free representative crash: unregister_netdevice: waiting for DEV to become free, types: [UNKNOWN] # git bisect good cc9ac419351b5cb3fcf21603e7c0697a93245305 Bisecting: 2723 revisions left to test after this (roughly 11 steps) [a34bed978364114390162c27e50fca50791c568d] ext4: drop ppath from ext4_ext_replay_update_ex() to avoid double-free determine whether the revision contains the guilty commit revision 09996673e3139a6d86fc3d95c852b3a020e2fe5f crashed and is reachable testing commit a34bed978364114390162c27e50fca50791c568d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 82610552ecc956e55491edceacd047f8b3b59c5b8e53553ba49328cb5ff85738 run #0: OK run #1: crashed: unregister_netdevice: waiting for DEV to become free run #2: crashed: unregister_netdevice: waiting for DEV to become free run #3: OK run #4: crashed: unregister_netdevice: waiting for DEV to become free run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: crashed: unregister_netdevice: waiting for DEV to become free run #15: crashed: unregister_netdevice: waiting for DEV to become free run #16: OK run #17: crashed: unregister_netdevice: waiting for DEV to become free run #18: OK run #19: OK representative crash: unregister_netdevice: waiting for DEV to become free, types: [UNKNOWN] # git bisect good a34bed978364114390162c27e50fca50791c568d Bisecting: 1361 revisions left to test after this (roughly 10 steps) [d83ccca9e17eb738cb38292234590a510e8578df] iio: inkern: call iio_device_put() only on mapped devices determine whether the revision contains the guilty commit revision 09996673e3139a6d86fc3d95c852b3a020e2fe5f crashed and is reachable testing commit d83ccca9e17eb738cb38292234590a510e8578df gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 451067d4c6c651a7f1102cf5bc5de6c6e11f89b5901cad686a3011f0dd0408e1 all runs: OK false negative chance: 0.000 # git bisect bad d83ccca9e17eb738cb38292234590a510e8578df Bisecting: 680 revisions left to test after this (roughly 9 steps) [f5558e6b5cbe9699000db818e6480cbe103d6ffa] ASoC: fsl_micfil: fix regmap_write_bits usage determine whether the revision contains the guilty commit revision 09996673e3139a6d86fc3d95c852b3a020e2fe5f crashed and is reachable testing commit f5558e6b5cbe9699000db818e6480cbe103d6ffa gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4731ad8818ad9d11914d4e5852706079377c4488103ed89977b0551134cc1a61 all runs: OK false negative chance: 0.000 # git bisect bad f5558e6b5cbe9699000db818e6480cbe103d6ffa Bisecting: 340 revisions left to test after this (roughly 8 steps) [385e2f3e0d83d18af45971dec1e257159bb6e207] ALSA: hda/realtek: Add subwoofer quirk for Acer Predator G9-593 determine whether the revision contains the guilty commit revision 09996673e3139a6d86fc3d95c852b3a020e2fe5f crashed and is reachable testing commit 385e2f3e0d83d18af45971dec1e257159bb6e207 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 16168a41abc38eeaac4503bbc5be93ef0251ba62ba64f735eae13adca0f85f56 run #0: OK run #1: crashed: unregister_netdevice: waiting for DEV to become free run #2: OK run #3: OK run #4: OK run #5: crashed: unregister_netdevice: waiting for DEV to become free run #6: OK run #7: crashed: unregister_netdevice: waiting for DEV to become free run #8: OK run #9: OK run #10: crashed: unregister_netdevice: waiting for DEV to become free run #11: OK run #12: OK run #13: crashed: unregister_netdevice: waiting for DEV to become free run #14: OK run #15: OK run #16: OK run #17: OK run #18: crashed: unregister_netdevice: waiting for DEV to become free run #19: crashed: unregister_netdevice: waiting for DEV to become free representative crash: unregister_netdevice: waiting for DEV to become free, types: [UNKNOWN] # git bisect good 385e2f3e0d83d18af45971dec1e257159bb6e207 Bisecting: 170 revisions left to test after this (roughly 7 steps) [b3e612bd8f64ce62e731e95f635e06a2efe3c80c] fs: Fix uninitialized value issue in from_kuid and from_kgid determine whether the revision contains the guilty commit revision cc9ac419351b5cb3fcf21603e7c0697a93245305 crashed and is reachable testing commit b3e612bd8f64ce62e731e95f635e06a2efe3c80c gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5c7f8ef8993858c882cf4ecb1e3c4f375a594b083c25f9f7928dc174ba1b806f run #0: OK run #1: OK run #2: OK run #3: crashed: unregister_netdevice: waiting for DEV to become free run #4: crashed: unregister_netdevice: waiting for DEV to become free run #5: crashed: unregister_netdevice: waiting for DEV to become free run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: crashed: unregister_netdevice: waiting for DEV to become free run #13: OK run #14: crashed: unregister_netdevice: waiting for DEV to become free run #15: crashed: unregister_netdevice: waiting for DEV to become free run #16: crashed: unregister_netdevice: waiting for DEV to become free run #17: OK run #18: OK run #19: crashed: unregister_netdevice: waiting for DEV to become free representative crash: unregister_netdevice: waiting for DEV to become free, types: [UNKNOWN] # git bisect good b3e612bd8f64ce62e731e95f635e06a2efe3c80c Bisecting: 85 revisions left to test after this (roughly 7 steps) [061479ca14af9f9c2160a604052d18cc713e3842] nvme: fix metadata handling in nvme-passthrough determine whether the revision contains the guilty commit revision 385e2f3e0d83d18af45971dec1e257159bb6e207 crashed and is reachable testing commit 061479ca14af9f9c2160a604052d18cc713e3842 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 425fcca26b2b034f93bc50f6685b03666dc995a38736e09408caeaabc7acbd8a all runs: OK false negative chance: 0.000 # git bisect bad 061479ca14af9f9c2160a604052d18cc713e3842 Bisecting: 42 revisions left to test after this (roughly 5 steps) [647f416d31ace649df6995abcf8a9b47821a4dea] ocfs2: fix UBSAN warning in ocfs2_verify_volume() determine whether the revision contains the guilty commit revision 09996673e3139a6d86fc3d95c852b3a020e2fe5f crashed and is reachable testing commit 647f416d31ace649df6995abcf8a9b47821a4dea gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3864117c6d1e418d6b00cf099c36b2e05f11d2c0facc489775c4f6c20b2d90b7 run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: crashed: unregister_netdevice: waiting for DEV to become free run #16: crashed: unregister_netdevice: waiting for DEV to become free run #17: crashed: unregister_netdevice: waiting for DEV to become free run #18: OK run #19: OK representative crash: unregister_netdevice: waiting for DEV to become free, types: [UNKNOWN] # git bisect good 647f416d31ace649df6995abcf8a9b47821a4dea Bisecting: 21 revisions left to test after this (roughly 5 steps) [96b04a80541e5f0cc0d415cded17b9fa468c13da] ASoC: Intel: bytcr_rt5640: Add DMI quirk for Vexia Edu Atla 10 tablet determine whether the revision contains the guilty commit revision 09996673e3139a6d86fc3d95c852b3a020e2fe5f crashed and is reachable testing commit 96b04a80541e5f0cc0d415cded17b9fa468c13da gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7527317d7c08dc74d430498b0d4702cf431a7a4721ef0639232f2f9d283887b9 all runs: OK false negative chance: 0.001 # git bisect bad 96b04a80541e5f0cc0d415cded17b9fa468c13da Bisecting: 10 revisions left to test after this (roughly 3 steps) [43e46ee5efc03990b223f7aa8b77aa9c3d3acfdf] NFSD: Limit the number of concurrent async COPY operations determine whether the revision contains the guilty commit revision b3e612bd8f64ce62e731e95f635e06a2efe3c80c crashed and is reachable testing commit 43e46ee5efc03990b223f7aa8b77aa9c3d3acfdf gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c23dd8deaac8b485842c67f00e5ae00e97eab5d4d342b9ce55122598708afee8 run #0: basic kernel testing failed: failed to copy syz-executor to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-executor" "root@10.128.15.195:./syz-executor"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.15.195, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u5, OpenSSL 3.0.15 3 Sep 2024 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.15.195 [10.128.15.195] port 22. debug1: connect to address 10.128.15.195 port 22: Connection timed out ssh: connect to host 10.128.15.195 port 22: Connection timed out scp: Connection closed run #1: basic kernel testing failed: lost connection to test machine run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: crashed: unregister_netdevice: waiting for DEV to become free run #13: OK run #14: OK run #15: OK run #16: OK run #17: crashed: unregister_netdevice: waiting for DEV to become free run #18: crashed: unregister_netdevice: waiting for DEV to become free run #19: OK representative crash: unregister_netdevice: waiting for DEV to become free, types: [UNKNOWN] # git bisect good 43e46ee5efc03990b223f7aa8b77aa9c3d3acfdf Bisecting: 5 revisions left to test after this (roughly 3 steps) [105d04c88e5c6d31cbc431bbc50a82c8efbede7a] mm: avoid unsafe VMA hook invocation when error arises on mmap hook determine whether the revision contains the guilty commit revision cc9ac419351b5cb3fcf21603e7c0697a93245305 crashed and is reachable testing commit 105d04c88e5c6d31cbc431bbc50a82c8efbede7a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5b788238bafabbef2073d0ee98a98f5853caf8c1aa2e33365762a18bc23d4e57 run #0: crashed: unregister_netdevice: waiting for DEV to become free run #1: OK run #2: crashed: unregister_netdevice: waiting for DEV to become free run #3: OK run #4: OK run #5: crashed: unregister_netdevice: waiting for DEV to become free run #6: OK run #7: crashed: unregister_netdevice: waiting for DEV to become free run #8: OK run #9: OK run #10: crashed: unregister_netdevice: waiting for DEV to become free run #11: OK run #12: OK run #13: crashed: unregister_netdevice: waiting for DEV to become free run #14: OK run #15: crashed: unregister_netdevice: waiting for DEV to become free run #16: OK run #17: OK run #18: crashed: unregister_netdevice: waiting for DEV to become free run #19: OK representative crash: unregister_netdevice: waiting for DEV to become free, types: [UNKNOWN] # git bisect good 105d04c88e5c6d31cbc431bbc50a82c8efbede7a Bisecting: 2 revisions left to test after this (roughly 2 steps) [44f48eb9a6051826227bbd375446064fb2a43c6c] mm: resolve faulty mmap_region() error path behaviour determine whether the revision contains the guilty commit revision 43e46ee5efc03990b223f7aa8b77aa9c3d3acfdf crashed and is reachable testing commit 44f48eb9a6051826227bbd375446064fb2a43c6c gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ddc18d5468bd53dbc359885eaac16f04f501e92de2f78cb1ffa589e53e22c2aa all runs: OK false negative chance: 0.006 # git bisect bad 44f48eb9a6051826227bbd375446064fb2a43c6c Bisecting: 0 revisions left to test after this (roughly 1 step) [679d3a53eb02b1f93b59f421dccf52d006df11ec] mm: refactor arch_calc_vm_flag_bits() and arm64 MTE handling determine whether the revision contains the guilty commit revision 385e2f3e0d83d18af45971dec1e257159bb6e207 crashed and is reachable testing commit 679d3a53eb02b1f93b59f421dccf52d006df11ec gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c8b9a6c9261e08497b0fe8850d6c43f788073d570b0233d1e4175c6ed282a8fb run #0: OK run #1: OK run #2: OK run #3: crashed: unregister_netdevice: waiting for DEV to become free run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: crashed: unregister_netdevice: waiting for DEV to become free run #10: OK run #11: OK run #12: crashed: unregister_netdevice: waiting for DEV to become free run #13: OK run #14: crashed: unregister_netdevice: waiting for DEV to become free run #15: OK run #16: OK run #17: OK run #18: OK run #19: crashed: unregister_netdevice: waiting for DEV to become free representative crash: unregister_netdevice: waiting for DEV to become free, types: [UNKNOWN] # git bisect good 679d3a53eb02b1f93b59f421dccf52d006df11ec 44f48eb9a6051826227bbd375446064fb2a43c6c is the first bad commit commit 44f48eb9a6051826227bbd375446064fb2a43c6c Author: Lorenzo Stoakes Date: Fri Nov 15 12:38:16 2024 +0000 mm: resolve faulty mmap_region() error path behaviour [ Upstream commit 5de195060b2e251a835f622759550e6202167641 ] The mmap_region() function is somewhat terrifying, with spaghetti-like control flow and numerous means by which issues can arise and incomplete state, memory leaks and other unpleasantness can occur. A large amount of the complexity arises from trying to handle errors late in the process of mapping a VMA, which forms the basis of recently observed issues with resource leaks and observable inconsistent state. Taking advantage of previous patches in this series we move a number of checks earlier in the code, simplifying things by moving the core of the logic into a static internal function __mmap_region(). Doing this allows us to perform a number of checks up front before we do any real work, and allows us to unwind the writable unmap check unconditionally as required and to perform a CONFIG_DEBUG_VM_MAPLE_TREE validation unconditionally also. We move a number of things here: 1. We preallocate memory for the iterator before we call the file-backed memory hook, allowing us to exit early and avoid having to perform complicated and error-prone close/free logic. We carefully free iterator state on both success and error paths. 2. The enclosing mmap_region() function handles the mapping_map_writable() logic early. Previously the logic had the mapping_map_writable() at the point of mapping a newly allocated file-backed VMA, and a matching mapping_unmap_writable() on success and error paths. We now do this unconditionally if this is a file-backed, shared writable mapping. If a driver changes the flags to eliminate VM_MAYWRITE, however doing so does not invalidate the seal check we just performed, and we in any case always decrement the counter in the wrapper. We perform a debug assert to ensure a driver does not attempt to do the opposite. 3. We also move arch_validate_flags() up into the mmap_region() function. This is only relevant on arm64 and sparc64, and the check is only meaningful for SPARC with ADI enabled. We explicitly add a warning for this arch if a driver invalidates this check, though the code ought eventually to be fixed to eliminate the need for this. With all of these measures in place, we no longer need to explicitly close the VMA on error paths, as we place all checks which might fail prior to a call to any driver mmap hook. This eliminates an entire class of errors, makes the code easier to reason about and more robust. Link: https://lkml.kernel.org/r/6e0becb36d2f5472053ac5d544c0edfe9b899e25.1730224667.git.lorenzo.stoakes@oracle.com Fixes: deb0f6562884 ("mm/mmap: undo ->mmap() when arch_validate_flags() fails") Signed-off-by: Lorenzo Stoakes Reported-by: Jann Horn Reviewed-by: Liam R. Howlett Reviewed-by: Vlastimil Babka Tested-by: Mark Brown Cc: Andreas Larsson Cc: Catalin Marinas Cc: David S. Miller Cc: Helge Deller Cc: James E.J. Bottomley Cc: Linus Torvalds Cc: Peter Xu Cc: Will Deacon Cc: Signed-off-by: Andrew Morton Signed-off-by: Lorenzo Stoakes Signed-off-by: Greg Kroah-Hartman mm/mmap.c | 73 ++++++++++++++++++++++++++++++++++++++++----------------------- 1 file changed, 47 insertions(+), 26 deletions(-) accumulated error probability: 0.01 culprit signature: ddc18d5468bd53dbc359885eaac16f04f501e92de2f78cb1ffa589e53e22c2aa parent signature: c8b9a6c9261e08497b0fe8850d6c43f788073d570b0233d1e4175c6ed282a8fb reproducer is flaky (0.22 repro chance estimate) revisions tested: 21, total time: 6h14m9.316450041s (build: 1h55m32.437973112s, test: 3h51m52.85926004s) first good commit: 44f48eb9a6051826227bbd375446064fb2a43c6c mm: resolve faulty mmap_region() error path behaviour recipients (to): ["akpm@linux-foundation.org" "broonie@kernel.org" "gregkh@linuxfoundation.org" "liam.howlett@oracle.com" "lorenzo.stoakes@oracle.com" "vbabka@suse.cz"] recipients (cc): []