ci starts bisection 2024-11-17 08:47:02.463498002 +0000 UTC m=+121349.632226457 bisecting fixing commit since 5847c9777c303a792202c609bd761dceb60f4eed building syzkaller on f39a7eed7e2634a9f836f1922833d4b4d5b0f770 ensuring issue is reproducible on original commit 5847c9777c303a792202c609bd761dceb60f4eed testing commit 5847c9777c303a792202c609bd761dceb60f4eed gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b90a3f2888e89e3732a6c47fa3ae9b59b65bb6da6b2b9974b205eca5abcc4075 all runs: crashed: possible deadlock in rfcomm_sk_state_change representative crash: possible deadlock in rfcomm_sk_state_change, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit 5847c9777c303a792202c609bd761dceb60f4eed gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 309ea784b660dbfb4a6adda44f56b8da13826cc9363e77672ef6e7274a84fdec all runs: crashed: possible deadlock in rfcomm_sk_state_change representative crash: possible deadlock in rfcomm_sk_state_change, types: [LOCKDEP] the bug reproduces without the instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed kconfig minimization: base=4046 full=7962 leaves diff=2012 split chunks (needed=false): <2012> split chunk #0 of len 2012 into 5 parts testing without sub-chunk 1/5 disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit 5847c9777c303a792202c609bd761dceb60f4eed gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0c44a70a2ae1e0b9cf416465f5eff353d4604ae4f3b79a96ca7f749258828c3b 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 5847c9777c303a792202c609bd761dceb60f4eed gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3be1ed498705448fb35437721954e07f5376111e2f20dff6a6e8b984abe48f86 all runs: crashed: possible deadlock in rfcomm_sk_state_change representative crash: possible deadlock in rfcomm_sk_state_change, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 5847c9777c303a792202c609bd761dceb60f4eed gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d538c399228176ba71a74ea0929a101d045b3c26755efe0dd58a7d20345409cb all runs: crashed: possible deadlock in rfcomm_sk_state_change representative crash: possible deadlock in rfcomm_sk_state_change, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 5847c9777c303a792202c609bd761dceb60f4eed gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 48234322885816182a90847d6daa04546b77898d7fb3924b6ac086d19be0912e all runs: crashed: possible deadlock in rfcomm_sk_state_change representative crash: possible deadlock in rfcomm_sk_state_change, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LEAK UBSAN BUG KASAN ATOMIC_SLEEP HANG], they are not needed testing commit 5847c9777c303a792202c609bd761dceb60f4eed gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5f86ce372e44bb11a8f45bc3a65a0fb3d9816f168486345be6db39f11d08ca60 all runs: crashed: possible deadlock in rfcomm_sk_state_change representative crash: possible deadlock in rfcomm_sk_state_change, types: [LOCKDEP] the chunk can be dropped minimized to 403 configs; suspects: [6LOWPAN 6LOWPAN_GHC_EXT_HDR_DEST 6LOWPAN_GHC_EXT_HDR_FRAG 6LOWPAN_GHC_EXT_HDR_HOP 6LOWPAN_GHC_EXT_HDR_ROUTE 6LOWPAN_GHC_ICMPV6 6LOWPAN_GHC_UDP 6LOWPAN_NHC 6LOWPAN_NHC_DEST 6LOWPAN_NHC_FRAGMENT 6LOWPAN_NHC_HOP 6LOWPAN_NHC_IPV6 6LOWPAN_NHC_MOBILITY 6LOWPAN_NHC_ROUTING 6LOWPAN_NHC_UDP 6PACK 842_COMPRESS 842_DECOMPRESS 9P_FSCACHE 9P_FS_POSIX_ACL 9P_FS_SECURITY ACORN_PARTITION ACORN_PARTITION_ADFS ACORN_PARTITION_CUMANA ACORN_PARTITION_EESOX ACORN_PARTITION_ICS ACORN_PARTITION_POWERTEC ACORN_PARTITION_RISCIX ACPI_NFIT ACPI_PLATFORM_PROFILE ADDRESS_MASKING ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMIGA_PARTITION ANDROID_BINDERFS ANDROID_BINDER_IPC ANON_VMA_NAME APERTURE_HELPERS AR5523 ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ARCH_USES_PG_UNCACHED 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 BASE_FULL 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_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_MRVL BT_MRVL_SDIO BT_MSFTEXT BT_MTK BT_QCA BT_RFCOMM BT_RFCOMM_TTY BT_RTL CACHEFILES CAIF CAIF_DEBUG CAIF_DRIVERS CAIF_NETDEV CAIF_TTY CAIF_USB CAIF_VIRTIO CALL_DEPTH_TRACKING 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 CC_HAS_ASM_GOTO_OUTPUT CC_HAS_ASM_GOTO_TIED_OUTPUT 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 CPU_IBPB_ENTRY CPU_IBRS_ENTRY CPU_SRSO CPU_UNRET_ENTRY CRAMFS CRAMFS_BLOCKDEV CRAMFS_MTD CRASH_CORE 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_CHACHA20POLY1305 CRYPTO_CHACHA20_X86_64 CRYPTO_CRC32 CRYPTO_CRC32C_INTEL CRYPTO_CRC32_PCLMUL CRYPTO_CRC64_ROCKSOFT CRYPTO_CRCT10DIF CRYPTO_CRCT10DIF_PCLMUL CRYPTO_CRYPTD CRYPTO_CURVE25519 CRYPTO_CURVE25519_X86 CRYPTO_DEFLATE CRYPTO_DES CRYPTO_DES3_EDE_X86_64 CRYPTO_DEV_CCP CRYPTO_DEV_CCP_DD CRYPTO_DEV_PADLOCK CRYPTO_DEV_PADLOCK_AES CRYPTO_DEV_PADLOCK_SHA CRYPTO_DEV_QAT CRYPTO_DEV_QAT_C3XXX CRYPTO_DEV_QAT_C3XXXVF CRYPTO_DEV_QAT_C62X CRYPTO_DEV_QAT_C62XVF CRYPTO_DEV_QAT_DH895xCC CRYPTO_DEV_QAT_DH895xCCVF CRYPTO_DEV_VIRTIO CRYPTO_DH CRYPTO_DRBG_CTR CRYPTO_DRBG_HASH CRYPTO_ECDH CRYPTO_ECRDSA CRYPTO_ENGINE CRYPTO_ESSIV CRYPTO_FCRYPT CRYPTO_GHASH_CLMUL_NI_INTEL CRYPTO_HCTR2 CRYPTO_KDF800108_CTR CRYPTO_KEYWRAP CRYPTO_KHAZAD CRYPTO_KPP CRYPTO_LIB_ARC4 CRYPTO_LIB_CHACHA CRYPTO_LIB_CHACHA20POLY1305 CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LRW CRYPTO_NHPOLY1305 CRYPTO_NHPOLY1305_AVX2 CRYPTO_NHPOLY1305_SSE2 CRYPTO_PCBC CRYPTO_PCRYPT CRYPTO_POLY1305 CRYPTO_POLY1305_X86_64 CRYPTO_POLYVAL CRYPTO_POLYVAL_CLMUL_NI CRYPTO_RMD160 CRYPTO_SEED CRYPTO_SERPENT CRYPTO_SERPENT_AVX2_X86_64 CRYPTO_SERPENT_AVX_X86_64 CRYPTO_SERPENT_SSE2_X86_64 CRYPTO_SHA1_SSSE3 CRYPTO_SHA256_SSSE3 CRYPTO_SHA512_SSSE3 CRYPTO_SIMD CRYPTO_SM2 CRYPTO_SM3_AVX_X86_64 CRYPTO_SM4_AESNI_AVX2_X86_64 CRYPTO_SM4_AESNI_AVX_X86_64 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_XCTR 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 DLN2_ADC DMABUF_HEAPS DMABUF_HEAPS_CMA DMABUF_HEAPS_SYSTEM DMABUF_MOVE_NOTIFY DMA_CMA DMA_ENGINE_RAID DMA_OPS 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 DRM_DEBUG_MM DRM_DISPLAY_DP_HELPER DRM_DISPLAY_HDCP_HELPER DRM_DISPLAY_HDMI_HELPER DRM_DISPLAY_HELPER DRM_DP_AUX_BUS DRM_DP_AUX_CHARDEV ENCRYPTED_KEYS EXTCON FSCACHE FUSE_FS GPIOLIB HAMRADIO HID_DRAGONRISE IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOSCHED_BFQ ISDN ISDN_CAPI LIBNVDIMM MAC80211 MAC80211_DEBUGFS MAC80211_LEDS MEDIA_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MMC MTD NET_CLS_U32 NET_SCH_DEFAULT PARTITION_ADVANCED RETHUNK RETPOLINE RFKILL SERIAL_DEV_BUS SPECULATION_MITIGATIONS 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 [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing current HEAD 4a5df37964673effcd9f84041f7423206a5ae5f2 testing commit 4a5df37964673effcd9f84041f7423206a5ae5f2 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 212073c15561fc7770f346b59b39415c4194ccce4806a4b747e55bb932ccf107 all runs: OK false negative chance: 0.000 # git bisect start 4a5df37964673effcd9f84041f7423206a5ae5f2 5847c9777c303a792202c609bd761dceb60f4eed Bisecting: 30117 revisions left to test after this (roughly 15 steps) [a6ec08beec9ea93f342d6daeac922208709694dc] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net determine whether the revision contains the guilty commit revision 5847c9777c303a792202c609bd761dceb60f4eed crashed and is reachable testing commit a6ec08beec9ea93f342d6daeac922208709694dc gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ebf0ead8e79e2e7eb6a1380f809a0c5c53ead5132b176783e49ffc2ea1e7c64f all runs: crashed: possible deadlock in rfcomm_sk_state_change representative crash: possible deadlock in rfcomm_sk_state_change, types: [LOCKDEP] # git bisect good a6ec08beec9ea93f342d6daeac922208709694dc Bisecting: 15067 revisions left to test after this (roughly 14 steps) [e5899b60f52a7591cfc2a2dec3e83710975117d7] Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue determine whether the revision contains the guilty commit revision 5847c9777c303a792202c609bd761dceb60f4eed crashed and is reachable testing commit e5899b60f52a7591cfc2a2dec3e83710975117d7 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0b2e2366437e45a08f4bd012463737aeded305e5d6ef9e9d2ffe62ac6b72ede6 all runs: crashed: possible deadlock in rfcomm_sk_state_change representative crash: possible deadlock in rfcomm_sk_state_change, types: [LOCKDEP] # git bisect good e5899b60f52a7591cfc2a2dec3e83710975117d7 Bisecting: 7466 revisions left to test after this (roughly 13 steps) [de848da12f752170c2ebe114804a985314fd5a6a] Merge tag 'drm-next-2024-09-19' of https://gitlab.freedesktop.org/drm/kernel determine whether the revision contains the guilty commit revision 5847c9777c303a792202c609bd761dceb60f4eed crashed and is reachable testing commit de848da12f752170c2ebe114804a985314fd5a6a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4808f28ef8da2b5d3d770963d969195cde61e6dc1fe4d6ec8679c00c43ce4bd5 all runs: crashed: possible deadlock in rfcomm_sk_state_change representative crash: possible deadlock in rfcomm_sk_state_change, types: [LOCKDEP] # git bisect good de848da12f752170c2ebe114804a985314fd5a6a Bisecting: 3719 revisions left to test after this (roughly 12 steps) [4965ddb166992557a25848049f1a70e56050eb7a] Merge tag 'usb-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb determine whether the revision contains the guilty commit revision 5847c9777c303a792202c609bd761dceb60f4eed crashed and is reachable testing commit 4965ddb166992557a25848049f1a70e56050eb7a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e581fe2b53a36e16c31bd72507cc8c913cb9f867ab372b72f62bad71f677608f all runs: crashed: possible deadlock in rfcomm_sk_state_change representative crash: possible deadlock in rfcomm_sk_state_change, types: [LOCKDEP] # git bisect good 4965ddb166992557a25848049f1a70e56050eb7a Bisecting: 1860 revisions left to test after this (roughly 11 steps) [126e799602f45e9ce1ded03ee9eadda68bf470e0] net: ravb: Only advertise Rx/Tx timestamps if hardware supports it determine whether the revision contains the guilty commit revision 4965ddb166992557a25848049f1a70e56050eb7a crashed and is reachable testing commit 126e799602f45e9ce1ded03ee9eadda68bf470e0 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ccf04b4140bb135404913ed2d899239c314939a83b1050491e96b886d972aafb all runs: OK false negative chance: 0.000 # git bisect bad 126e799602f45e9ce1ded03ee9eadda68bf470e0 Bisecting: 905 revisions left to test after this (roughly 10 steps) [994aeacbb3c039b4f3e02e76e6d39407920e76c6] Merge tag 'drm-next-2024-09-28' of https://gitlab.freedesktop.org/drm/kernel determine whether the revision contains the guilty commit revision 5847c9777c303a792202c609bd761dceb60f4eed crashed and is reachable testing commit 994aeacbb3c039b4f3e02e76e6d39407920e76c6 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1a0b7d8850f753b2462a0ee3e1badaeb35690ccfbfaeb1a472c23bf6e400c6f9 all runs: crashed: possible deadlock in rfcomm_sk_state_change representative crash: possible deadlock in rfcomm_sk_state_change, types: [LOCKDEP] # git bisect good 994aeacbb3c039b4f3e02e76e6d39407920e76c6 Bisecting: 452 revisions left to test after this (roughly 9 steps) [8e60dbcbaaa177dacef55a61501790e201bf8c88] ice: Fix netif_is_ice() in Safe Mode determine whether the revision contains the guilty commit revision 994aeacbb3c039b4f3e02e76e6d39407920e76c6 crashed and is reachable testing commit 8e60dbcbaaa177dacef55a61501790e201bf8c88 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4bdd146cf6322834c95f817cac9a6506d663a0accedb0677b6ec3807b437d1dd all runs: OK false negative chance: 0.000 # git bisect bad 8e60dbcbaaa177dacef55a61501790e201bf8c88 Bisecting: 228 revisions left to test after this (roughly 8 steps) [9f9a53472452b83d44d5e1d77b6dea6eaa043204] Merge tag 'bcachefs-2024-09-28' of git://evilpiepirate.org/bcachefs determine whether the revision contains the guilty commit revision 5847c9777c303a792202c609bd761dceb60f4eed crashed and is reachable testing commit 9f9a53472452b83d44d5e1d77b6dea6eaa043204 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 74435e514dd5e070a5c957fe401a13ddc1a72072d534bc0d6e1e8116fbe05c9f all runs: crashed: possible deadlock in rfcomm_sk_state_change representative crash: possible deadlock in rfcomm_sk_state_change, types: [LOCKDEP] # git bisect good 9f9a53472452b83d44d5e1d77b6dea6eaa043204 Bisecting: 114 revisions left to test after this (roughly 7 steps) [9c02404b52f56b2c8acc8c0ac16d525b1226dfe5] Merge tag 'v6.12-rc1-ksmbd-fixes' of git://git.samba.org/ksmbd determine whether the revision contains the guilty commit revision de848da12f752170c2ebe114804a985314fd5a6a crashed and is reachable testing commit 9c02404b52f56b2c8acc8c0ac16d525b1226dfe5 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c6614a0c571105c7bab1babcc9f6f7cbe47a45649564e78b6024cc0163dc5312 all runs: crashed: possible deadlock in rfcomm_sk_state_change representative crash: possible deadlock in rfcomm_sk_state_change, types: [LOCKDEP] # git bisect good 9c02404b52f56b2c8acc8c0ac16d525b1226dfe5 Bisecting: 57 revisions left to test after this (roughly 6 steps) [55e802468e1d38dec8e25a2fdb6078d45b647e8c] sfc: Don't invoke xdp_do_flush() from netpoll. determine whether the revision contains the guilty commit revision e5899b60f52a7591cfc2a2dec3e83710975117d7 crashed and is reachable testing commit 55e802468e1d38dec8e25a2fdb6078d45b647e8c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9c7b2983ad2b4a0667ab9149834db4471f2e18de84baa5767ce9aaf4e2472100 all runs: crashed: possible deadlock in rfcomm_sk_state_change representative crash: possible deadlock in rfcomm_sk_state_change, types: [LOCKDEP] # git bisect good 55e802468e1d38dec8e25a2fdb6078d45b647e8c Bisecting: 28 revisions left to test after this (roughly 5 steps) [9f49d14ec41ce7be647028d7d34dea727af55272] selftests: net: no_forwarding: fix VID for $swp2 in one_bridge_two_pvids() test determine whether the revision contains the guilty commit revision 5847c9777c303a792202c609bd761dceb60f4eed crashed and is reachable testing commit 9f49d14ec41ce7be647028d7d34dea727af55272 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dfc8338cf51706fee8d0811e3060e32cca2db22b94665fda9fe813e14674b350 all runs: crashed: possible deadlock in rfcomm_sk_state_change representative crash: possible deadlock in rfcomm_sk_state_change, types: [LOCKDEP] # git bisect good 9f49d14ec41ce7be647028d7d34dea727af55272 Bisecting: 14 revisions left to test after this (roughly 4 steps) [47f9605484a89ea14c41f0aa0e9294b7b94d64c0] net: ethernet: ti: am65-cpsw: prevent WARN_ON upon module removal determine whether the revision contains the guilty commit revision 9c02404b52f56b2c8acc8c0ac16d525b1226dfe5 crashed and is reachable testing commit 47f9605484a89ea14c41f0aa0e9294b7b94d64c0 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 07e023e0a8a49de64e85969145ee8013d85f62f725ce7e0a0f182346eb95b4de all runs: OK false negative chance: 0.000 # git bisect bad 47f9605484a89ea14c41f0aa0e9294b7b94d64c0 Bisecting: 6 revisions left to test after this (roughly 3 steps) [83211ae1640516accae645de82f5a0a142676897] net: ethernet: adi: adin1110: Fix some error handling path in adin1110_read_fifo() determine whether the revision contains the guilty commit revision 9f49d14ec41ce7be647028d7d34dea727af55272 crashed and is reachable testing commit 83211ae1640516accae645de82f5a0a142676897 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 275d9bd20c1f16350364b81e7678b7310c008e04a7e0edee9cfef3f2a3d2a6f8 all runs: crashed: possible deadlock in rfcomm_sk_state_change representative crash: possible deadlock in rfcomm_sk_state_change, types: [LOCKDEP] # git bisect good 83211ae1640516accae645de82f5a0a142676897 Bisecting: 3 revisions left to test after this (roughly 2 steps) [610712298b11b2914be00b35abe9326b5dbb62c8] Bluetooth: btusb: Don't fail external suspend requests determine whether the revision contains the guilty commit revision a6ec08beec9ea93f342d6daeac922208709694dc crashed and is reachable testing commit 610712298b11b2914be00b35abe9326b5dbb62c8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d5173bb63eb7b4cd93936a3f5bdf4a402d44fb66f45ceb573e9571d99506a79e all runs: OK false negative chance: 0.000 # git bisect bad 610712298b11b2914be00b35abe9326b5dbb62c8 Bisecting: 0 revisions left to test after this (roughly 1 step) [18fd04ad856df07733f5bb07e7f7168e7443d393] Bluetooth: hci_conn: Fix UAF in hci_enhanced_setup_sync determine whether the revision contains the guilty commit revision 5847c9777c303a792202c609bd761dceb60f4eed crashed and is reachable testing commit 18fd04ad856df07733f5bb07e7f7168e7443d393 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e181d2a0a80182b5efa1876638c114c221fc0095b140863cde6e0847428e67e1 all runs: OK false negative chance: 0.000 # git bisect bad 18fd04ad856df07733f5bb07e7f7168e7443d393 Bisecting: 0 revisions left to test after this (roughly 0 steps) [08d1914293dae38350b8088980e59fbc699a72fe] Bluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change determine whether the revision contains the guilty commit revision e5899b60f52a7591cfc2a2dec3e83710975117d7 crashed and is reachable testing commit 08d1914293dae38350b8088980e59fbc699a72fe gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 47af1f3ad0c656d65fe9b8739f0871f27ebd280b65ec86493a501a246665646d all runs: OK false negative chance: 0.000 # git bisect bad 08d1914293dae38350b8088980e59fbc699a72fe 08d1914293dae38350b8088980e59fbc699a72fe is the first bad commit commit 08d1914293dae38350b8088980e59fbc699a72fe Author: Luiz Augusto von Dentz Date: Mon Sep 30 13:26:21 2024 -0400 Bluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change rfcomm_sk_state_change attempts to use sock_lock so it must never be called with it locked but rfcomm_sock_ioctl always attempt to lock it causing the following trace: ====================================================== WARNING: possible circular locking dependency detected 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted ------------------------------------------------------ syz-executor386/5093 is trying to acquire lock: ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1671 [inline] ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x5b/0x310 net/bluetooth/rfcomm/sock.c:73 but task is already holding lock: ffff88807badfd28 (&d->lock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x226/0x6a0 net/bluetooth/rfcomm/core.c:491 Reported-by: syzbot+d7ce59b06b3eb14fd218@syzkaller.appspotmail.com Tested-by: syzbot+d7ce59b06b3eb14fd218@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=d7ce59b06b3eb14fd218 Fixes: 3241ad820dbb ("[Bluetooth] Add timestamp support to L2CAP, RFCOMM and SCO") Signed-off-by: Luiz Augusto von Dentz net/bluetooth/rfcomm/sock.c | 2 -- 1 file changed, 2 deletions(-) accumulated error probability: 0.00 parent commit 500257db81d067c1ad5a202501a085a8ffea10f1 wasn't tested testing commit 500257db81d067c1ad5a202501a085a8ffea10f1 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 75fbb13d2bf06899e14915a34eb2420946cec8cffc3ae3fbcf723ddc07a9a5e5 culprit signature: 47af1f3ad0c656d65fe9b8739f0871f27ebd280b65ec86493a501a246665646d parent signature: 75fbb13d2bf06899e14915a34eb2420946cec8cffc3ae3fbcf723ddc07a9a5e5 revisions tested: 24, total time: 5h15m42.916755878s (build: 2h44m35.345703854s, test: 2h12m28.621196947s) first good commit: 08d1914293dae38350b8088980e59fbc699a72fe Bluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change recipients (to): ["johan.hedberg@gmail.com" "linux-bluetooth@vger.kernel.org" "luiz.dentz@gmail.com" "luiz.von.dentz@intel.com" "marcel@holtmann.org" "syzbot+d7ce59b06b3eb14fd218@syzkaller.appspotmail.com"] recipients (cc): ["axboe@kernel.dk" "edumazet@google.com" "kuba@kernel.org" "linux-kernel@vger.kernel.org"]