ci starts bisection 2023-12-05 19:17:17.951160507 +0000 UTC m=+488347.351059907 bisecting cause commit starting from bee0e7762ad2c6025b9f5245c040fcc36ef2bde8 building syzkaller on f819d6f7cb99737851dcaaa51f11190138fd48d5 ensuring issue is reproducible on original commit bee0e7762ad2c6025b9f5245c040fcc36ef2bde8 testing commit bee0e7762ad2c6025b9f5245c040fcc36ef2bde8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: aa90272c93b97b7f82ab16c2416695c07f84ea319cdaeb57752c5a56b74461eb run #0: crashed: KASAN: slab-out-of-bounds Write in sco_sock_timeout run #1: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #2: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #3: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #4: crashed: KASAN: slab-out-of-bounds Write in sco_sock_timeout run #5: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #6: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #7: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #8: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #9: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #10: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #11: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #12: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #13: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #14: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #15: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #16: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #17: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #18: basic kernel testing failed: failed to copy binary to VM: timedout after 1m0s ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor3970224912" "root@10.128.15.200:./syz-executor3970224912"] Executing: program /usr/bin/ssh host 10.128.15.200, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.15.200 [10.128.15.200] port 22. debug1: fd 3 clearing O_NONBLOCK debug1: Connection established. debug1: identity file /root/.ssh/id_rsa type -1 debug1: identity file /root/.ssh/id_rsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa type -1 debug1: identity file /root/.ssh/id_ecdsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa_sk type -1 debug1: identity file /root/.ssh/id_ecdsa_sk-cert type -1 debug1: identity file /root/.ssh/id_ed25519 type -1 debug1: identity file /root/.ssh/id_ed25519-cert type -1 debug1: identity file /root/.ssh/id_ed25519_sk type -1 debug1: identity file /root/.ssh/id_ed25519_sk-cert type -1 debug1: identity file /root/.ssh/id_xmss type -1 debug1: identity file /root/.ssh/id_xmss-cert type -1 debug1: identity file /root/.ssh/id_dsa type -1 debug1: identity file /root/.ssh/id_dsa-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_9.2p1 Debian-2 debug1: Remote protocol version 2.0, remote software version OpenSSH_9.1 debug1: compat_banner: match: OpenSSH_9.1 pat OpenSSH* compat 0x04000000 debug1: Authenticating to 10.128.15.200:22 as 'root' debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: algorithm: sntrup761x25519-sha512@openssh.com debug1: kex: host key algorithm: ssh-ed25519 debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: compression: none debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: compression: none debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: SSH2_MSG_KEX_ECDH_REPLY received debug1: Server host key: ssh-ed25519 SHA256:88IuL3orPAmVsyjIy2DvkKzVRHqGoDXxazNYOfOHasg debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory Warning: Permanently added '10.128.15.200' (ED25519) to the list of known hosts. debug1: rekey out after 134217728 blocks debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: rekey in after 134217728 blocks debug1: Will attempt key: /root/.ssh/id_rsa debug1: Will attempt key: /root/.ssh/id_ecdsa debug1: Will attempt key: /root/.ssh/id_ecdsa_sk debug1: Will attempt key: /root/.ssh/id_ed25519 debug1: Will attempt key: /root/.ssh/id_ed25519_sk debug1: Will attempt key: /root/.ssh/id_xmss debug1: Will attempt key: /root/.ssh/id_dsa debug1: SSH2_MSG_EXT_INFO received debug1: kex_input_ext_info: server-sig-algs= debug1: kex_input_ext_info: publickey-hostbound@openssh.com=<0> debug1: SSH2_MSG_SERVICE_ACCEPT received Authenticated to 10.128.15.200 ([10.128.15.200]:22) using "none". debug1: channel 0: new session [client-session] (inactive timeout: 0) debug1: Requesting no-more-sessions@openssh.com debug1: Entering interactive session. debug1: pledge: network debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0 debug1: Sending subsystem: sftp debug1: pledge: fork scp: debug1: stat remote: No such file or directory run #19: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout representative crash: KASAN: slab-out-of-bounds Write in sco_sock_timeout, 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 bee0e7762ad2c6025b9f5245c040fcc36ef2bde8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d139897a75ef637445da0a8d1c498bcd86348a4d13bdf7099840ae34b731dfea all runs: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout representative crash: KASAN: slab-use-after-free Write in sco_sock_timeout, types: [KASAN] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=3923 full=7659 leaves diff=2005 split chunks (needed=false): <2005> split chunk #0 of len 2005 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 bee0e7762ad2c6025b9f5245c040fcc36ef2bde8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9c5c36bb3c019f4b2e57fd0fd0f2fa43c1e6b7f28d25e9c1ddf1d48107cbc8be all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit bee0e7762ad2c6025b9f5245c040fcc36ef2bde8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9dfd8727c1a416858fb7d8518b988afaa9580875ad5a428e6a50d94757760651 run #0: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #1: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #2: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #3: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #4: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #5: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #6: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #7: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #8: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #9: OK representative crash: KASAN: slab-use-after-free Write in sco_sock_timeout, types: [KASAN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit bee0e7762ad2c6025b9f5245c040fcc36ef2bde8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6b6cdb179d8a56d80abde9209ddbe19fa7e19812be0bfea7fd4d2e1cf686e13f all runs: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout representative crash: KASAN: slab-use-after-free Write in sco_sock_timeout, 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 bee0e7762ad2c6025b9f5245c040fcc36ef2bde8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 84d542a64dce6e76c4321d67ea217f8d9d8279787dd8b1c4ffadd199e69d9b30 run #0: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #1: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #2: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #3: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #4: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #5: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #6: crashed: KASAN: slab-use-after-free Write in sco_conn_del run #7: OK run #8: OK run #9: OK representative crash: KASAN: slab-use-after-free Write in sco_sock_timeout, types: [KASAN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit bee0e7762ad2c6025b9f5245c040fcc36ef2bde8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 76b57041f5936c10d33d99da41b74ebcd6716a67c05adb4f7307fd1de5c42a7b run #0: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #1: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #2: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #3: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #4: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #5: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #6: OK run #7: OK run #8: OK run #9: OK representative crash: KASAN: slab-use-after-free Write in sco_sock_timeout, types: [KASAN] the chunk can be dropped minimized to 401 configs; suspects: [6LOWPAN 6LOWPAN_GHC_EXT_HDR_DEST 6LOWPAN_GHC_EXT_HDR_FRAG 6LOWPAN_GHC_EXT_HDR_HOP 6LOWPAN_GHC_EXT_HDR_ROUTE 6LOWPAN_GHC_ICMPV6 6LOWPAN_GHC_UDP 6LOWPAN_NHC 6LOWPAN_NHC_DEST 6LOWPAN_NHC_FRAGMENT 6LOWPAN_NHC_HOP 6LOWPAN_NHC_IPV6 6LOWPAN_NHC_MOBILITY 6LOWPAN_NHC_ROUTING 6LOWPAN_NHC_UDP 6PACK 842_COMPRESS 842_DECOMPRESS 9P_FSCACHE 9P_FS_POSIX_ACL 9P_FS_SECURITY ACORN_PARTITION ACORN_PARTITION_ADFS ACORN_PARTITION_CUMANA ACORN_PARTITION_EESOX ACORN_PARTITION_ICS ACORN_PARTITION_POWERTEC ACORN_PARTITION_RISCIX ACPI_NFIT ACPI_PLATFORM_PROFILE ADDRESS_MASKING ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMIGA_PARTITION ANDROID_BINDERFS ANDROID_BINDER_IPC ANON_VMA_NAME APERTURE_HELPERS AR5523 ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ARCH_WANT_PMD_MKWRITE ASM_MODVERSIONS ASYNC_CORE ASYNC_MEMCPY ASYNC_PQ ASYNC_RAID6_RECOV ASYNC_TX_DMA ASYNC_XOR ATARI_PARTITION ATA_GENERIC ATA_OVER_ETH ATH10K ATH10K_CE ATH10K_PCI ATH10K_USB ATH11K ATH6KL ATH6KL_USB ATH9K ATH9K_AHB ATH9K_BTCOEX_SUPPORT ATH9K_CHANNEL_CONTEXT ATH9K_COMMON ATH9K_COMMON_DEBUG ATH9K_DEBUGFS ATH9K_DYNACK ATH9K_HTC ATH9K_HTC_DEBUGFS ATH9K_HW ATH9K_PCI ATH9K_PCOEM ATH9K_RFKILL ATH_COMMON ATM ATM_BR2684 ATM_CLIP ATM_DRIVERS ATM_LANE ATM_MPOA ATM_TCP AUXILIARY_BUS AX25 AX25_DAMA_SLAVE AX88796B_PHY BAREUDP BATMAN_ADV BATMAN_ADV_BATMAN_V BATMAN_ADV_BLA BATMAN_ADV_DAT BATMAN_ADV_MCAST BATMAN_ADV_NC BCACHE BCACHEFS_DEBUG BCACHEFS_FS BCACHEFS_QUOTA BCMA BCMA_HOST_PCI_POSSIBLE BEFS_FS BFQ_CGROUP_DEBUG BFQ_GROUP_IOSCHED BFS_FS BIG_KEYS BLK_CGROUP_PUNT_BIO BLK_CGROUP_RWSTAT BLK_DEBUG_FS_ZONED BLK_DEV_BSGLIB BLK_DEV_INTEGRITY BLK_DEV_INTEGRITY_T10 BLK_DEV_NBD BLK_DEV_NULL_BLK BLK_DEV_NULL_BLK_FAULT_INJECTION BLK_DEV_NVME BLK_DEV_PMEM BLK_DEV_RAM BLK_DEV_RNBD BLK_DEV_RNBD_CLIENT BLK_DEV_THROTTLING BLK_DEV_ZONED BLK_ICQ BLK_INLINE_ENCRYPTION BLK_INLINE_ENCRYPTION_FALLBACK BLK_WBT BLK_WBT_MQ BONDING BOOT_VESA_SUPPORT BPF_EVENTS BPF_JIT BPF_JIT_ALWAYS_ON BPF_JIT_DEFAULT_ON BPF_LSM BPF_PRELOAD BPF_PRELOAD_UMD BPF_STREAM_PARSER BPF_SYSCALL BPQETHER BRIDGE BRIDGE_CFM BRIDGE_EBT_802_3 BRIDGE_EBT_AMONG BRIDGE_EBT_ARP BRIDGE_EBT_ARPREPLY BRIDGE_EBT_BROUTE BRIDGE_EBT_DNAT BRIDGE_EBT_IP BRIDGE_EBT_IP6 BRIDGE_EBT_LIMIT BRIDGE_EBT_LOG BRIDGE_EBT_MARK BRIDGE_EBT_MARK_T BRIDGE_EBT_NFLOG BRIDGE_EBT_PKTTYPE BRIDGE_EBT_REDIRECT BRIDGE_EBT_SNAT BRIDGE_EBT_STP BRIDGE_EBT_T_FILTER BRIDGE_EBT_T_NAT BRIDGE_EBT_VLAN BRIDGE_IGMP_SNOOPING BRIDGE_MRP BRIDGE_NF_EBTABLES BRIDGE_VLAN_FILTERING BSD_DISKLABEL BSD_PROCESS_ACCT_V3 BT BTRFS_ASSERT BTRFS_FS BTRFS_FS_POSIX_ACL BTRFS_FS_REF_VERIFY BTT BT_6LOWPAN BT_ATH3K BT_BCM BT_BNEP BT_BNEP_MC_FILTER BT_BNEP_PROTO_FILTER BT_BREDR BT_CMTP BT_HCIBCM203X BT_HCIBFUSB BT_HCIBPA10X BT_HCIBTUSB BT_HCIBTUSB_BCM BT_HCIBTUSB_MTK BT_HCIBTUSB_POLL_SYNC BT_HCIBTUSB_RTL BT_HCIUART BT_HCIUART_3WIRE BT_HCIUART_AG6XX BT_HCIUART_BCSP BT_HCIUART_H4 BT_HCIUART_LL BT_HCIUART_MRVL BT_HCIUART_QCA BT_HCIUART_SERDEV BT_HCIVHCI BT_HIDP BT_HS BT_INTEL BT_LE BT_LEDS BT_LE_L2CAP_ECRED BT_MSFTEXT BT_MTK BT_QCA BT_RFCOMM BT_RFCOMM_TTY BT_RTL CACHEFILES CAIF CAIF_DEBUG CAIF_DRIVERS CAIF_NETDEV CAIF_TTY CAIF_USB CAIF_VIRTIO CAN CAN_8DEV_USB CAN_BCM CAN_CALC_BITTIMING CAN_DEV CAN_EMS_USB CAN_GS_USB CAN_GW CAN_IFI_CANFD CAN_ISOTP CAN_J1939 CAN_KVASER_USB CAN_MCBA_USB CAN_NETLINK CAN_PEAK_USB CAN_RAW CAN_RX_OFFLOAD CAN_SLCAN CAN_VCAN CAN_VXCAN CAPI_TRACE CARL9170 CARL9170_HWRNG CARL9170_LEDS CARL9170_WPC CEC_CORE CEPH_FS CEPH_FSCACHE CEPH_FS_POSIX_ACL CEPH_LIB CEPH_LIB_USE_DNS_RESOLVER CFG80211 CFG80211_CRDA_SUPPORT CFG80211_DEBUGFS CFG80211_DEFAULT_PS CFG80211_REQUIRE_SIGNED_REGDB CFG80211_USE_KERNEL_REGDB_KEYS CFG80211_WEXT CFS_BANDWIDTH CGROUP_BPF CHARGER_BQ24190 CHARGER_ISP1704 CHR_DEV_ST CIFS CIFS_ALLOW_INSECURE_LEGACY CIFS_DEBUG CIFS_DFS_UPCALL CIFS_FSCACHE CIFS_POSIX CIFS_SMB_DIRECT CIFS_SWN_UPCALL CIFS_UPCALL CIFS_XATTR CLOSURES CLS_U32_MARK CLS_U32_PERF CMA CMA_SIZE_SEL_MBYTES CMDLINE_PARTITION COMEDI COMEDI_DT9812 COMEDI_NI_USB6501 COMEDI_USBDUX COMEDI_USBDUXFAST COMEDI_USBDUXSIGMA COMEDI_USB_DRIVERS COMEDI_VMK80XX COMPAT_NETLINK_MESSAGES COUNTER CRAMFS CRAMFS_BLOCKDEV CRAMFS_MTD CRC4 CRC64 CRC64_ROCKSOFT CRC7 CRC8 CRC_ITU_T CRC_T10DIF CRYPTO_ADIANTUM CRYPTO_AEGIS128 CRYPTO_AEGIS128_AESNI_SSE2 CRYPTO_AES_NI_INTEL CRYPTO_AES_TI CRYPTO_ANSI_CPRNG CRYPTO_ANUBIS CRYPTO_ARC4 CRYPTO_ARCH_HAVE_LIB_BLAKE2S CRYPTO_ARCH_HAVE_LIB_CHACHA CRYPTO_ARCH_HAVE_LIB_CURVE25519 CRYPTO_ARCH_HAVE_LIB_POLY1305 CRYPTO_ARIA CRYPTO_ARIA_AESNI_AVX_X86_64 CRYPTO_BLAKE2B CRYPTO_BLAKE2S_X86 CRYPTO_BLOWFISH CRYPTO_BLOWFISH_COMMON CRYPTO_BLOWFISH_X86_64 CRYPTO_CAMELLIA CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 CRYPTO_CAMELLIA_AESNI_AVX_X86_64 CRYPTO_CAMELLIA_X86_64 CRYPTO_CAST5 CRYPTO_CAST5_AVX_X86_64 CRYPTO_CAST6 CRYPTO_CAST6_AVX_X86_64 CRYPTO_CAST_COMMON CRYPTO_CFB CRYPTO_CHACHA20 CRYPTO_CHACHA20POLY1305 CRYPTO_CHACHA20_X86_64 CRYPTO_CRC32 CRYPTO_CRC32C_INTEL CRYPTO_CRC32_PCLMUL CRYPTO_CRC64_ROCKSOFT CRYPTO_CRCT10DIF CRYPTO_CRCT10DIF_PCLMUL CRYPTO_CRYPTD CRYPTO_CTS CRYPTO_CURVE25519 CRYPTO_CURVE25519_X86 CRYPTO_DEFLATE CRYPTO_DES CRYPTO_DES3_EDE_X86_64 CRYPTO_DEV_CCP CRYPTO_DEV_CCP_DD CRYPTO_DEV_PADLOCK CRYPTO_DEV_PADLOCK_AES CRYPTO_DEV_PADLOCK_SHA CRYPTO_DEV_QAT CRYPTO_DEV_QAT_C3XXX CRYPTO_DEV_QAT_C3XXXVF CRYPTO_DEV_QAT_C62X CRYPTO_DEV_QAT_C62XVF CRYPTO_DEV_QAT_DH895xCC CRYPTO_DEV_QAT_DH895xCCVF CRYPTO_DEV_VIRTIO CRYPTO_DH CRYPTO_DRBG_CTR CRYPTO_DRBG_HASH CRYPTO_ECC CRYPTO_ECDH CRYPTO_ECRDSA CRYPTO_ENGINE CRYPTO_ESSIV CRYPTO_FCRYPT CRYPTO_GHASH_CLMUL_NI_INTEL CRYPTO_HCTR2 CRYPTO_KDF800108_CTR CRYPTO_KEYWRAP CRYPTO_KHAZAD CRYPTO_KPP CRYPTO_LIB_ARC4 CRYPTO_LIB_CHACHA CRYPTO_LIB_CHACHA20POLY1305 CRYPTO_LIB_CHACHA_GENERIC CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_DES CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LRW CRYPTO_MICHAEL_MIC CRYPTO_NHPOLY1305 CRYPTO_NHPOLY1305_AVX2 CRYPTO_NHPOLY1305_SSE2 CRYPTO_OFB CRYPTO_PCBC CRYPTO_PCRYPT CRYPTO_POLY1305 CRYPTO_POLY1305_X86_64 CRYPTO_POLYVAL CRYPTO_POLYVAL_CLMUL_NI CRYPTO_RMD160 CRYPTO_SEED CRYPTO_SERPENT CRYPTO_SERPENT_AVX2_X86_64 CRYPTO_SERPENT_AVX_X86_64 CRYPTO_SERPENT_SSE2_X86_64 CRYPTO_SHA1_SSSE3 CRYPTO_SHA256_SSSE3 CRYPTO_SHA512_SSSE3 CRYPTO_SIMD CRYPTO_SM2 CRYPTO_SM3 CRYPTO_SM3_AVX_X86_64 CRYPTO_SM4 CRYPTO_SM4_AESNI_AVX2_X86_64 CRYPTO_SM4_AESNI_AVX_X86_64 CRYPTO_SM4_GENERIC CRYPTO_STREEBOG CRYPTO_TEA CRYPTO_TWOFISH CRYPTO_TWOFISH_AVX_X86_64 CRYPTO_TWOFISH_COMMON CRYPTO_TWOFISH_X86_64 CRYPTO_TWOFISH_X86_64_3WAY CRYPTO_USER CRYPTO_USER_API CRYPTO_USER_API_AEAD CRYPTO_USER_API_ENABLE_OBSOLETE CRYPTO_USER_API_HASH CRYPTO_USER_API_RNG CRYPTO_USER_API_SKCIPHER CRYPTO_VMAC CRYPTO_WP512 CRYPTO_XCBC CRYPTO_XCTR CRYPTO_XTS CRYPTO_XXHASH CUSE CYPRESS_FIRMWARE DAMON DAMON_DBGFS DAMON_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEFAULT_PFIFO_FAST DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DIMLIB DLN2_ADC DMABUF_HEAPS DMABUF_HEAPS_CMA DMABUF_HEAPS_SYSTEM DMABUF_MOVE_NOTIFY DMA_CMA DMA_ENGINE_RAID DM_AUDIT DM_BIO_PRISON DM_BUFIO DM_CACHE DM_CACHE_SMQ DM_CLONE DM_CRYPT DM_FLAKEY DM_INTEGRITY DM_MULTIPATH DM_MULTIPATH_QL DM_MULTIPATH_ST DM_PERSISTENT_DATA DM_RAID DM_SNAPSHOT DM_THIN_PROVISIONING DM_UEVENT DM_VERITY DM_VERITY_FEC DM_WRITECACHE DM_ZONED DRAGONRISE_FF DRM DRM_BOCHS DRM_BUDDY DRM_CIRRUS_QEMU ENCRYPTED_KEYS EXTCON FSCACHE FUSE_FS GPIOLIB HAMRADIO HID_DRAGONRISE IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOSCHED_BFQ ISDN ISDN_CAPI LIBNVDIMM MAC80211 MAC80211_DEBUGFS MAC80211_LEDS MEDIA_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MTD NET_CLS_U32 NET_SCH_DEFAULT PARTITION_ADVANCED RFKILL SERIAL_DEV_BUS TLS TLS_DEVICE TRANSPARENT_HUGEPAGE TRUSTED_KEYS USB_GADGET USB_PHY VLAN_8021Q WANT_COMPAT_NETLINK_MESSAGES WEXT_CORE WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ATH X86_X32_ABI ZONE_DEVICE] disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed picked [v6.6 v6.5 v6.4 v6.2 v6.0 v5.18 v5.16 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 29 release tags testing release v6.6 testing commit ffc253263a1375a65fa6c9f62a893e9767fbebfa gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 38fa33fed0ebeee4bd3fb05c9a0e58a9ec38bd41c1d9e184d48ee199295493aa run #0: crashed: KASAN: slab-use-after-free Write in sco_conn_del run #1: crashed: KASAN: slab-use-after-free Write in sco_conn_del run #2: crashed: KASAN: slab-use-after-free Write in sco_conn_del run #3: crashed: KASAN: slab-use-after-free Write in sco_conn_del run #4: crashed: KASAN: slab-use-after-free Write in sco_conn_del run #5: crashed: KASAN: slab-use-after-free Write in sco_conn_del run #6: crashed: KASAN: slab-use-after-free Write in sco_conn_del run #7: crashed: KASAN: slab-use-after-free Write in sco_conn_del run #8: OK run #9: OK representative crash: KASAN: slab-use-after-free Write in sco_conn_del, types: [KASAN] testing release v6.5 testing commit 2dde18cd1d8fac735875f2e4987f11817cc0bc2c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 52a5f60952ebd445e2c11078984b20d948484d40a8a93f6fc0f81e313e95c35d run #0: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #1: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: KASAN: slab-use-after-free Write in sco_sock_timeout, types: [KASAN] testing release v6.4 testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7bfc3f5649a42409e9b9c0e8aef8f3cfab6aa54956c1c0ac8e168cb2a34a8591 run #0: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #1: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout 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: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Write in sco_sock_timeout, types: [KASAN] testing release v6.2 testing commit c9c3395d5e3dcc6daee66c6908354d47bf98cb0c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9256e495d282a5eff6240f7225d5b340731cd734e5e1d713804b30cbfb56bdb1 all runs: OK false negative chance: 0.000 # git bisect start 6995e2de6891c724bfeb2db33d7b87775f913ad1 c9c3395d5e3dcc6daee66c6908354d47bf98cb0c Bisecting: 15817 revisions left to test after this (roughly 14 steps) [ce7928f7cf988e3f20ec3cca050838b266e9ef14] Merge tag 'wireless-next-2023-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next testing commit ce7928f7cf988e3f20ec3cca050838b266e9ef14 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 24a44e5920bb323a9371eadba593f923b1e92b289f9e1db599e58d46c1ae9f22 all runs: OK false negative chance: 0.000 # git bisect good ce7928f7cf988e3f20ec3cca050838b266e9ef14 Bisecting: 7904 revisions left to test after this (roughly 13 steps) [34b62f186db9614e55d021f8c58d22fc44c57911] Merge tag 'pci-v6.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci testing commit 34b62f186db9614e55d021f8c58d22fc44c57911 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a5dcdf77395dc2628a2ecb2f4f54a7d469402c9f0bd0f07ba7106e2829a50fd1 run #0: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #1: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #2: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #3: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #4: crashed: KASAN: slab-use-after-free Read in hci_conn_hash_flush run #5: crashed: KASAN: slab-use-after-free Read in hci_conn_hash_flush run #6: crashed: KASAN: slab-use-after-free Read in hci_conn_hash_flush run #7: crashed: KASAN: slab-use-after-free Read in hci_conn_hash_flush run #8: crashed: KASAN: slab-use-after-free Read in hci_conn_hash_flush run #9: crashed: KASAN: slab-use-after-free Read in hci_conn_hash_flush run #10: crashed: KASAN: slab-use-after-free Read in hci_conn_hash_flush run #11: crashed: KASAN: slab-use-after-free Read in hci_conn_hash_flush run #12: crashed: KASAN: slab-use-after-free Read in hci_conn_hash_flush run #13: crashed: KASAN: slab-use-after-free Read in hci_conn_hash_flush run #14: crashed: KASAN: slab-use-after-free Read in hci_conn_hash_flush run #15: crashed: KASAN: slab-use-after-free Read in hci_conn_hash_flush run #16: crashed: KASAN: slab-use-after-free Read in hci_conn_hash_flush run #17: crashed: KASAN: slab-use-after-free Read in hci_conn_hash_flush run #18: crashed: KASAN: slab-use-after-free Read in hci_conn_hash_flush run #19: crashed: KASAN: slab-use-after-free Read in hci_conn_hash_flush representative crash: KASAN: slab-use-after-free Write in sco_sock_timeout, types: [KASAN] # git bisect bad 34b62f186db9614e55d021f8c58d22fc44c57911 Bisecting: 3798 revisions left to test after this (roughly 12 steps) [c8cc58e289ed3b5bc50258f52776cf3dfa3bad66] Merge tag 'drm-next-2023-04-24' of git://anongit.freedesktop.org/drm/drm testing commit c8cc58e289ed3b5bc50258f52776cf3dfa3bad66 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8bef53242b7921b031a692174c5696e5bf6384893f780ecd16834a679c218b77 run #0: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #1: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #2: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #3: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #4: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout 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: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Write in sco_sock_timeout, types: [KASAN] # git bisect bad c8cc58e289ed3b5bc50258f52776cf3dfa3bad66 Bisecting: 1641 revisions left to test after this (roughly 11 steps) [d53c3eaaef6a05fec04e8b5990d97d7216eb5e42] Merge tag 'soc-dt-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc testing commit d53c3eaaef6a05fec04e8b5990d97d7216eb5e42 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b9aa54f373b1657fc6a5b64cc7c0c03b117ad309411241a29dc59dd64acaaaa2 run #0: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #1: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #2: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #3: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #4: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #5: crashed: KASAN: slab-use-after-free Write in sco_conn_del 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: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Write in sco_sock_timeout, types: [KASAN] # git bisect bad d53c3eaaef6a05fec04e8b5990d97d7216eb5e42 Bisecting: 1232 revisions left to test after this (roughly 10 steps) [e94ee641f9cef2502adfe5e0c264b271420c7ab5] Merge tag 'edac_updates_for_v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras testing commit e94ee641f9cef2502adfe5e0c264b271420c7ab5 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b4a6a70acc1ba6f79788e525d6338e0ce5a5b1b7c166a7fed1f9406c16f03f28 run #0: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #1: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #2: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #3: crashed: KASAN: slab-use-after-free Write in hci_conn_hash_flush run #4: crashed: KASAN: slab-use-after-free Write in hci_conn_hash_flush 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: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Write in sco_sock_timeout, types: [KASAN] # git bisect bad e94ee641f9cef2502adfe5e0c264b271420c7ab5 Bisecting: 613 revisions left to test after this (roughly 9 steps) [40aacb3183ff74e15940189ff9a998a93b5ca76f] Merge tag 'loongarch-fixes-6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson testing commit 40aacb3183ff74e15940189ff9a998a93b5ca76f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5ef6a9c50533d2de6d0693aad555854de3251e45fc4abb582664ab15b97c6745 run #0: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #1: crashed: KASAN: slab-use-after-free Write in hci_conn_hash_flush run #2: crashed: KASAN: slab-use-after-free Write in sco_conn_del 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: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Write in sco_sock_timeout, types: [KASAN] # git bisect bad 40aacb3183ff74e15940189ff9a998a93b5ca76f Bisecting: 309 revisions left to test after this (roughly 8 steps) [aa46fe36bbac623d58817eb12ed0222d88fe6b16] Merge tag 'tty-6.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty testing commit aa46fe36bbac623d58817eb12ed0222d88fe6b16 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8144c7b6947a7f55a812e1f97a3ceab8709761d2967a3a2d465db7fb38f0a0bb all runs: OK false negative chance: 0.006 # git bisect good aa46fe36bbac623d58817eb12ed0222d88fe6b16 Bisecting: 136 revisions left to test after this (roughly 7 steps) [829cca4d1783088e43bace57a555044cc937c554] Merge tag 'net-6.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit 829cca4d1783088e43bace57a555044cc937c554 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0078659d86e1934c08708a632d388dbd529290df5878cf5f72b8d7d88117af90 run #0: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #1: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #2: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #3: OK run #4: crashed: KASAN: slab-use-after-free Write in hci_conn_hash_flush 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: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Write in sco_sock_timeout, types: [KASAN] # git bisect bad 829cca4d1783088e43bace57a555044cc937c554 Bisecting: 84 revisions left to test after this (roughly 7 steps) [b05e0f5e74e48a3e39066794fc1d7df37507953d] Merge tag 'dmaengine-fix-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine testing commit b05e0f5e74e48a3e39066794fc1d7df37507953d gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 95db02213d4fc2a461d357aa1d30ad06f7328501dabae255342e5513d44ddf26 all runs: OK false negative chance: 0.008 # git bisect good b05e0f5e74e48a3e39066794fc1d7df37507953d Bisecting: 42 revisions left to test after this (roughly 5 steps) [d6a0443733434408f2cbd4c53fea6910599bab9e] mptcp: stricter state check in mptcp_worker testing commit d6a0443733434408f2cbd4c53fea6910599bab9e gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1ac57ec2081fcb3498b27d34b9ac06ca8e994c3e9a51672260206d7a28e4a2bf run #0: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #1: crashed: KASAN: slab-use-after-free Write in sco_conn_del run #2: crashed: KASAN: slab-use-after-free Write in hci_conn_hash_flush run #3: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout 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: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Write in sco_sock_timeout, types: [KASAN] # git bisect bad d6a0443733434408f2cbd4c53fea6910599bab9e Bisecting: 23 revisions left to test after this (roughly 4 steps) [a4506722dc39ca840593f14e3faa4c9ba9408211] net: phy: nxp-c45-tja11xx: add remove callback testing commit a4506722dc39ca840593f14e3faa4c9ba9408211 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e284fc12598c4a01804f6e47a6858909e731be0c2675b5f4df13651316af9c92 all runs: OK false negative chance: 0.010 # git bisect good a4506722dc39ca840593f14e3faa4c9ba9408211 Bisecting: 12 revisions left to test after this (roughly 4 steps) [160c13175e392961fd18a9fdb89e5425b3ac7099] Merge tag 'for-net-2023-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth testing commit 160c13175e392961fd18a9fdb89e5425b3ac7099 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: deaf7b23487f1b89e3afafd0acbf39321cbca7012a7866e635f736f80d54b25f run #0: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #1: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #2: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #3: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #4: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout 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: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Write in sco_sock_timeout, types: [KASAN] # git bisect bad 160c13175e392961fd18a9fdb89e5425b3ac7099 Bisecting: 5 revisions left to test after this (roughly 3 steps) [b76abe4648c1acc791a207e7c08d1719eb9f4ea8] bluetooth: btbcm: Fix logic error in forming the board name. testing commit b76abe4648c1acc791a207e7c08d1719eb9f4ea8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3f5700366b184837299e48ba9001cfe2e9ebc1d1d65663fd0c2f2dc94d50f2d6 all runs: OK false negative chance: 0.010 # git bisect good b76abe4648c1acc791a207e7c08d1719eb9f4ea8 Bisecting: 2 revisions left to test after this (roughly 2 steps) [5dc7d23e167e2882ef118456ceccd57873e876d8] Bluetooth: hci_conn: Fix possible UAF testing commit 5dc7d23e167e2882ef118456ceccd57873e876d8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 843de6731cc42ad65a9399780f60ac001e7133e261a4534534150ee6930d2986 run #0: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #1: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout 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: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Write in sco_sock_timeout, types: [KASAN] # git bisect bad 5dc7d23e167e2882ef118456ceccd57873e876d8 Bisecting: 0 revisions left to test after this (roughly 1 step) [975abc0c90fc485ff9b4a6afa475c3b1398d5d47] Bluetooth: SCO: Fix possible circular locking dependency sco_sock_getsockopt testing commit 975abc0c90fc485ff9b4a6afa475c3b1398d5d47 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 405683f639067aa24cff986108fae33e48dae3e8b455654df3acd2cdd35f5947 run #0: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #1: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #2: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #3: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #4: crashed: KASAN: slab-use-after-free Read in hci_conn_hash_flush 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: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Write in sco_sock_timeout, types: [KASAN] # git bisect bad 975abc0c90fc485ff9b4a6afa475c3b1398d5d47 Bisecting: 0 revisions left to test after this (roughly 0 steps) [9a8ec9e8ebb5a7c0cfbce2d6b4a6b67b2b78e8f3] Bluetooth: SCO: Fix possible circular locking dependency on sco_connect_cfm testing commit 9a8ec9e8ebb5a7c0cfbce2d6b4a6b67b2b78e8f3 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0b2ce73f361e4dbcc4ba7367f7bff9112c765de8aaeb0c09818622850ab72a5f run #0: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #1: crashed: KASAN: slab-use-after-free Write in sco_sock_timeout run #2: OK run #3: crashed: KASAN: slab-use-after-free Read in hci_conn_hash_flush run #4: crashed: KASAN: slab-use-after-free Write in sco_conn_del 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: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Write in sco_sock_timeout, types: [KASAN] # git bisect bad 9a8ec9e8ebb5a7c0cfbce2d6b4a6b67b2b78e8f3 9a8ec9e8ebb5a7c0cfbce2d6b4a6b67b2b78e8f3 is the first bad commit commit 9a8ec9e8ebb5a7c0cfbce2d6b4a6b67b2b78e8f3 Author: Luiz Augusto von Dentz Date: Thu Mar 30 14:15:50 2023 -0700 Bluetooth: SCO: Fix possible circular locking dependency on sco_connect_cfm This attempts to fix the following trace: ====================================================== WARNING: possible circular locking dependency detected 6.3.0-rc2-g0b93eeba4454 #4703 Not tainted ------------------------------------------------------ kworker/u3:0/46 is trying to acquire lock: ffff888001fd9130 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: sco_connect_cfm+0x118/0x4a0 but task is already holding lock: ffffffff831e3340 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_sync_conn_complete_evt+0x1ad/0x3d0 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (hci_cb_list_lock){+.+.}-{3:3}: __mutex_lock+0x13b/0xcc0 hci_sync_conn_complete_evt+0x1ad/0x3d0 hci_event_packet+0x55c/0x7c0 hci_rx_work+0x34c/0xa00 process_one_work+0x575/0x910 worker_thread+0x89/0x6f0 kthread+0x14e/0x180 ret_from_fork+0x2b/0x50 -> #1 (&hdev->lock){+.+.}-{3:3}: __mutex_lock+0x13b/0xcc0 sco_sock_connect+0xfc/0x630 __sys_connect+0x197/0x1b0 __x64_sys_connect+0x37/0x50 do_syscall_64+0x42/0x90 entry_SYSCALL_64_after_hwframe+0x70/0xda -> #0 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}: __lock_acquire+0x18cc/0x3740 lock_acquire+0x151/0x3a0 lock_sock_nested+0x32/0x80 sco_connect_cfm+0x118/0x4a0 hci_sync_conn_complete_evt+0x1e6/0x3d0 hci_event_packet+0x55c/0x7c0 hci_rx_work+0x34c/0xa00 process_one_work+0x575/0x910 worker_thread+0x89/0x6f0 kthread+0x14e/0x180 ret_from_fork+0x2b/0x50 other info that might help us debug this: Chain exists of: sk_lock-AF_BLUETOOTH-BTPROTO_SCO --> &hdev->lock --> hci_cb_list_lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(hci_cb_list_lock); lock(&hdev->lock); lock(hci_cb_list_lock); lock(sk_lock-AF_BLUETOOTH-BTPROTO_SCO); *** DEADLOCK *** 4 locks held by kworker/u3:0/46: #0: ffff8880028d1130 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_one_work+0x4c0/0x910 #1: ffff8880013dfde0 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work+0x4c0/0x910 #2: ffff8880025d8070 (&hdev->lock){+.+.}-{3:3}, at: hci_sync_conn_complete_evt+0xa6/0x3d0 #3: ffffffffb79e3340 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_sync_conn_complete_evt+0x1ad/0x3d0 Signed-off-by: Luiz Augusto von Dentz net/bluetooth/sco.c | 69 +++++++++++++++++++++++++++++++---------------------- 1 file changed, 40 insertions(+), 29 deletions(-) accumulated error probability: 0.03 culprit signature: 0b2ce73f361e4dbcc4ba7367f7bff9112c765de8aaeb0c09818622850ab72a5f parent signature: 3f5700366b184837299e48ba9001cfe2e9ebc1d1d65663fd0c2f2dc94d50f2d6 reproducer is flaky (0.15 repro chance estimate) revisions tested: 27, total time: 8h40m24.761860156s (build: 2h34m46.559532235s, test: 5h49m19.249862566s) first bad commit: 9a8ec9e8ebb5a7c0cfbce2d6b4a6b67b2b78e8f3 Bluetooth: SCO: Fix possible circular locking dependency on sco_connect_cfm recipients (to): ["davem@davemloft.net" "edumazet@google.com" "johan.hedberg@gmail.com" "kuba@kernel.org" "linux-bluetooth@vger.kernel.org" "luiz.dentz@gmail.com" "luiz.von.dentz@intel.com" "marcel@holtmann.org" "netdev@vger.kernel.org" "pabeni@redhat.com"] recipients (cc): ["linux-kernel@vger.kernel.org"] crash: KASAN: slab-use-after-free Write in sco_sock_timeout ================================================================== BUG: KASAN: slab-use-after-free in instrument_atomic_read_write include/linux/instrumented.h:102 [inline] BUG: KASAN: slab-use-after-free in atomic_fetch_add_relaxed include/linux/atomic/atomic-instrumented.h:116 [inline] BUG: KASAN: slab-use-after-free in __refcount_add include/linux/refcount.h:193 [inline] BUG: KASAN: slab-use-after-free in __refcount_inc include/linux/refcount.h:250 [inline] BUG: KASAN: slab-use-after-free in refcount_inc include/linux/refcount.h:267 [inline] BUG: KASAN: slab-use-after-free in sock_hold include/net/sock.h:775 [inline] BUG: KASAN: slab-use-after-free in sco_sock_timeout+0x57/0x1f0 net/bluetooth/sco.c:89 Write of size 4 at addr ffff88810ea7b080 by task kworker/0:3/1578 CPU: 0 PID: 1578 Comm: kworker/0:3 Not tainted 6.3.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 Workqueue: events sco_sock_timeout Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x3d/0x60 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:319 [inline] print_report+0xc4/0x620 mm/kasan/report.c:430 kasan_report+0xdc/0x110 mm/kasan/report.c:536 check_region_inline mm/kasan/generic.c:181 [inline] kasan_check_range+0x143/0x190 mm/kasan/generic.c:187 instrument_atomic_read_write include/linux/instrumented.h:102 [inline] atomic_fetch_add_relaxed include/linux/atomic/atomic-instrumented.h:116 [inline] __refcount_add include/linux/refcount.h:193 [inline] __refcount_inc include/linux/refcount.h:250 [inline] refcount_inc include/linux/refcount.h:267 [inline] sock_hold include/net/sock.h:775 [inline] sco_sock_timeout+0x57/0x1f0 net/bluetooth/sco.c:89 process_one_work+0x850/0x1270 kernel/workqueue.c:2390 worker_thread+0xf1/0xdd0 kernel/workqueue.c:2537 kthread+0x22c/0x2b0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Allocated by task 2487: kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0xa2/0xb0 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:196 [inline] __do_kmalloc_node mm/slab_common.c:967 [inline] __kmalloc+0x5d/0x160 mm/slab_common.c:980 kmalloc include/linux/slab.h:584 [inline] sk_prot_alloc+0x14f/0x210 net/core/sock.c:2040 sk_alloc+0x30/0x580 net/core/sock.c:2093 sco_sock_alloc.constprop.0+0x22/0x2f0 net/bluetooth/sco.c:506 sco_sock_create+0xb3/0x160 net/bluetooth/sco.c:545 bt_sock_create+0x11e/0x250 net/bluetooth/af_bluetooth.c:132 __sock_create+0x1fd/0x460 net/socket.c:1545 sock_create net/socket.c:1596 [inline] __sys_socket_create net/socket.c:1633 [inline] __sys_socket+0x114/0x1b0 net/socket.c:1661 __do_sys_socket net/socket.c:1674 [inline] __se_sys_socket net/socket.c:1672 [inline] __x64_sys_socket+0x6d/0xb0 net/socket.c:1672 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x64/0xce Freed by task 2488: kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 kasan_save_free_info+0x2e/0x40 mm/kasan/generic.c:521 ____kasan_slab_free mm/kasan/common.c:236 [inline] ____kasan_slab_free+0x15e/0x1b0 mm/kasan/common.c:200 kasan_slab_free include/linux/kasan.h:162 [inline] slab_free_hook mm/slub.c:1781 [inline] slab_free_freelist_hook+0x10b/0x1e0 mm/slub.c:1807 slab_free mm/slub.c:3787 [inline] __kmem_cache_free+0xab/0x330 mm/slub.c:3800 sk_prot_free net/core/sock.c:2076 [inline] __sk_destruct+0x4a5/0x6b0 net/core/sock.c:2168 sco_sock_release+0x130/0x280 net/bluetooth/sco.c:1275 __sock_release+0xbb/0x280 net/socket.c:653 sock_close+0x13/0x20 net/socket.c:1395 __fput+0x1e3/0x9b0 fs/file_table.c:321 task_work_run+0x114/0x1f0 kernel/task_work.c:179 get_signal+0x194/0x1f00 kernel/signal.c:2635 arch_do_signal_or_restart+0x89/0x5f0 arch/x86/kernel/signal.c:306 exit_to_user_mode_loop kernel/entry/common.c:168 [inline] exit_to_user_mode_prepare+0xc3/0x150 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x17/0x40 kernel/entry/common.c:297 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x64/0xce Last potentially related work creation: kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 __kasan_record_aux_stack+0xbf/0xd0 mm/kasan/generic.c:491 __call_rcu_common.constprop.0+0x8e/0x6b0 kernel/rcu/tree.c:2622 netlink_release+0xc67/0x15e0 net/netlink/af_netlink.c:828 __sock_release+0xbb/0x280 net/socket.c:653 sock_close+0x13/0x20 net/socket.c:1395 __fput+0x1e3/0x9b0 fs/file_table.c:321 task_work_run+0x114/0x1f0 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x141/0x150 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x17/0x40 kernel/entry/common.c:297 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x64/0xce The buggy address belongs to the object at ffff88810ea7b000 which belongs to the cache kmalloc-2k of size 2048 The buggy address is located 128 bytes inside of freed 2048-byte region [ffff88810ea7b000, ffff88810ea7b800) The buggy address belongs to the physical page: page:ffffea00043a9e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10ea78 head:ffffea00043a9e00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0x100000000010200(slab|head|node=0|zone=2) raw: 0100000000010200 ffff888100042000 dead000000000100 dead000000000122 raw: 0000000000000000 0000000000080008 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 1652148147, free_ts 0 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x282/0x300 mm/page_alloc.c:2546 prep_new_page mm/page_alloc.c:2553 [inline] get_page_from_freelist+0xc0a/0x41b0 mm/page_alloc.c:4326 __alloc_pages+0x1d0/0x470 mm/page_alloc.c:5592 alloc_page_interleave+0xf/0x200 mm/mempolicy.c:2116 alloc_slab_page mm/slub.c:1851 [inline] allocate_slab+0x24e/0x360 mm/slub.c:1998 new_slab mm/slub.c:2051 [inline] ___slab_alloc+0x7f6/0xf50 mm/slub.c:3193 __slab_alloc.constprop.0+0x4d/0x90 mm/slub.c:3292 __slab_alloc_node mm/slub.c:3345 [inline] slab_alloc_node mm/slub.c:3442 [inline] __kmem_cache_alloc_node+0x144/0x390 mm/slub.c:3491 kmalloc_trace+0x25/0xb0 mm/slab_common.c:1061 kmalloc include/linux/slab.h:580 [inline] kzalloc include/linux/slab.h:720 [inline] acpi_add_single_object+0xb7/0x1810 drivers/acpi/scan.c:1818 acpi_bus_check_add+0x1a6/0x4a0 drivers/acpi/scan.c:2082 acpi_ns_walk_namespace+0x2e6/0x4b0 drivers/acpi/acpica/nswalk.c:233 acpi_walk_namespace drivers/acpi/acpica/nsxfeval.c:606 [inline] acpi_walk_namespace+0xb4/0xe0 drivers/acpi/acpica/nsxfeval.c:554 acpi_bus_scan+0x119/0x160 drivers/acpi/scan.c:2432 acpi_scan_init+0x1ea/0x630 drivers/acpi/scan.c:2609 acpi_init+0x380/0x870 drivers/acpi/bus.c:1412 page_owner free stack trace missing Memory state around the buggy address: ffff88810ea7af80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88810ea7b000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88810ea7b080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88810ea7b100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88810ea7b180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================