ci starts bisection 2023-12-15 17:15:37.357225942 +0000 UTC m=+162466.706912499 bisecting fixing commit since 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 building syzkaller on 0b6a67ac4b0dc26f43030c5edd01c9175f13b784 ensuring issue is reproducible on original commit 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 testing commit 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8e8972a3a9390a11eb2519d97d92d9ede670054eef221c7a14c7b03a45191ab5 all runs: crashed: BUG: sleeping function called from invalid context in hci_cmd_sync_submit representative crash: BUG: sleeping function called from invalid context in hci_cmd_sync_submit, types: [ATOMIC_SLEEP] check whether we can drop unnecessary instrumentation disabling configs for [KASAN LOCKDEP HANG LEAK UBSAN BUG], they are not needed testing commit 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7cdb80029ae6841aaf696e3f8944ebb923cb12ce2d197f00e5d60ea7e46a5cea all runs: crashed: BUG: sleeping function called from invalid context in hci_cmd_sync_submit representative crash: BUG: sleeping function called from invalid context in hci_cmd_sync_submit, types: [ATOMIC_SLEEP] the bug reproduces without the instrumentation disabling configs for [KASAN LOCKDEP HANG LEAK UBSAN BUG], they are not needed kconfig minimization: base=3915 full=7686 leaves diff=2008 split chunks (needed=false): <2008> split chunk #0 of len 2008 into 5 parts testing without sub-chunk 1/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP HANG], they are not needed testing commit 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 93847eea543dbe23a8bcabcbc62f3a29e37181945e382bed8557509baaa69eb0 all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4e4927cd166f7eca7b7d121947cd8e2abe4367c05ba83593269b14abccc7358a all runs: crashed: BUG: sleeping function called from invalid context in hci_cmd_sync_submit representative crash: BUG: sleeping function called from invalid context in hci_cmd_sync_submit, types: [ATOMIC_SLEEP] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 67bbe94e04979e96fde6b2b71d0e733db9cc74c6f454bd83baa0840d1e557c83 all runs: crashed: BUG: sleeping function called from invalid context in hci_cmd_sync_submit representative crash: BUG: sleeping function called from invalid context in hci_cmd_sync_submit, types: [ATOMIC_SLEEP] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP HANG], they are not needed testing commit 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0fd2fbc8763a88fc1e7c5551764d989ad82030e7542509806efa81a1569c0a5f all runs: crashed: BUG: sleeping function called from invalid context in hci_cmd_sync_submit representative crash: BUG: sleeping function called from invalid context in hci_cmd_sync_submit, types: [ATOMIC_SLEEP] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LOCKDEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0c7de8db8f5ebda1a252b3be352591b71e86dd04f043f7b5841a0247fc0c6112 all runs: crashed: BUG: sleeping function called from invalid context in hci_cmd_sync_submit representative crash: BUG: sleeping function called from invalid context in hci_cmd_sync_submit, types: [ATOMIC_SLEEP] the chunk can be dropped minimized to 402 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 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_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_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 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 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 DRM_DEBUG_MM 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_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 HANG LEAK UBSAN BUG KASAN], they are not needed testing current HEAD 3f7168591ebf7bbdb91797d02b1afaf00a4289b1 testing commit 3f7168591ebf7bbdb91797d02b1afaf00a4289b1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 68b6c216474d0a2063f89107c1ccd810e1f67730f71342f4da86e0e85aabbc84 all runs: OK false negative chance: 0.000 # git bisect start 3f7168591ebf7bbdb91797d02b1afaf00a4289b1 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 Bisecting: 9081 revisions left to test after this (roughly 13 steps) [7d461b291e65938f15f56fe58da2303b07578a76] Merge tag 'drm-next-2023-10-31-1' of git://anongit.freedesktop.org/drm/drm determine whether the revision contains the guilty commit revision 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 crashed and is reachable testing commit 7d461b291e65938f15f56fe58da2303b07578a76 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8b03c3adfc4a941f509d8b3731a0e15e5c85baeffc9dd5c40952967911dfe274 all runs: OK false negative chance: 0.000 # git bisect bad 7d461b291e65938f15f56fe58da2303b07578a76 Bisecting: 5337 revisions left to test after this (roughly 12 steps) [f84a52eef5c35b49947b132ddd9b79d6767469af] Merge tag 'x86_bugs_for_6.7_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip determine whether the revision contains the guilty commit revision 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 crashed and is reachable testing commit f84a52eef5c35b49947b132ddd9b79d6767469af gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1971c66bdab85420c60883950c9e30da4f75f5db33c4d32bdb3d8f48b99d26c2 all runs: OK false negative chance: 0.000 # git bisect bad f84a52eef5c35b49947b132ddd9b79d6767469af Bisecting: 2663 revisions left to test after this (roughly 11 steps) [f854ce4d0a3f7281b5b99b28dd028abe21c1b0c8] bcachefs: six locks: Guard against wakee exiting in __six_lock_wakeup() determine whether the revision contains the guilty commit checking the merge base 0bb80ecc33a8fb5a682236443c1e740d5c917d1d no existing result, test the revision testing commit 0bb80ecc33a8fb5a682236443c1e740d5c917d1d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4ef64d446afb3b69ae77d1cf46a7f83d77fc81b91e14f62a9310e977784cfd5f all runs: crashed: BUG: sleeping function called from invalid context in hci_cmd_sync_submit representative crash: BUG: sleeping function called from invalid context in hci_cmd_sync_submit, types: [ATOMIC_SLEEP] testing commit f854ce4d0a3f7281b5b99b28dd028abe21c1b0c8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: edd395eda43efbad693875a60145fb08e9fcb7b8b8ae471cbd625068aa9036ee all runs: crashed: BUG: sleeping function called from invalid context in hci_cmd_sync_submit representative crash: BUG: sleeping function called from invalid context in hci_cmd_sync_submit, types: [ATOMIC_SLEEP] # git bisect good f854ce4d0a3f7281b5b99b28dd028abe21c1b0c8 Bisecting: 1331 revisions left to test after this (roughly 10 steps) [3439b2a87edcdb86557b5e64787372c6f280dcba] Merge tag 'dmaengine-fix-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine determine whether the revision contains the guilty commit revision 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 crashed and is reachable testing commit 3439b2a87edcdb86557b5e64787372c6f280dcba gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 63fc9c7a9f5f9a16d41b24242ae79c6ef0ee21561e9b381643130f35fbf810e2 all runs: OK false negative chance: 0.000 # git bisect bad 3439b2a87edcdb86557b5e64787372c6f280dcba Bisecting: 665 revisions left to test after this (roughly 9 steps) [71e58659bfc02e4171345f80b13d6485e9cdf687] Merge tag 'gpio-fixes-for-v6.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux determine whether the revision contains the guilty commit revision 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 crashed and is reachable testing commit 71e58659bfc02e4171345f80b13d6485e9cdf687 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e86b33965a4f9d6b9fe849afd5a57e1eeaccefe5b8fe3f3c041f8b63ebee354f all runs: crashed: BUG: sleeping function called from invalid context in hci_cmd_sync_submit representative crash: BUG: sleeping function called from invalid context in hci_cmd_sync_submit, types: [ATOMIC_SLEEP] # git bisect good 71e58659bfc02e4171345f80b13d6485e9cdf687 Bisecting: 332 revisions left to test after this (roughly 8 steps) [b78b18fb8ee19f7a05f20c3abc865b3bfe182884] Merge tag 'erofs-for-6.6-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs determine whether the revision contains the guilty commit revision 71e58659bfc02e4171345f80b13d6485e9cdf687 crashed and is reachable testing commit b78b18fb8ee19f7a05f20c3abc865b3bfe182884 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a34131d86eac86e9b651523f68e762358fa1a4476a0d4056f6d288e5ebac1e23 all runs: OK false negative chance: 0.000 # git bisect bad b78b18fb8ee19f7a05f20c3abc865b3bfe182884 Bisecting: 165 revisions left to test after this (roughly 7 steps) [a9c2be4f3730961fdda03d226d783e444babe6f2] Merge tag 'libnvdimm-fixes-6.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm determine whether the revision contains the guilty commit revision 0bb80ecc33a8fb5a682236443c1e740d5c917d1d crashed and is reachable testing commit a9c2be4f3730961fdda03d226d783e444babe6f2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6137d1eea642b7e61a937a36fdbb0cd5ee6b0fa510294f4f44e1fbe7280ee5b3 all runs: crashed: BUG: sleeping function called from invalid context in hci_cmd_sync_submit representative crash: BUG: sleeping function called from invalid context in hci_cmd_sync_submit, types: [ATOMIC_SLEEP] # git bisect good a9c2be4f3730961fdda03d226d783e444babe6f2 Bisecting: 82 revisions left to test after this (roughly 6 steps) [513dbc10cfc1da6754e004ea651d6bc480c23eb9] page_pool: fix documentation typos determine whether the revision contains the guilty commit revision 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 crashed and is reachable testing commit 513dbc10cfc1da6754e004ea651d6bc480c23eb9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c1aef1b813998c6092b58d5d5b4c1d0a33ca4cdc8a4d6ca08da9a3141d6feb73 all runs: OK false negative chance: 0.000 # git bisect bad 513dbc10cfc1da6754e004ea651d6bc480c23eb9 Bisecting: 36 revisions left to test after this (roughly 5 steps) [1eb3dee16a52b1a40a0cccbe79f87b453ddbc1a8] Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf determine whether the revision contains the guilty commit revision 0bb80ecc33a8fb5a682236443c1e740d5c917d1d crashed and is reachable testing commit 1eb3dee16a52b1a40a0cccbe79f87b453ddbc1a8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4c597f5eb4acaded912f1d82b708342eea1b222284e8f8da96681f569795a06a all runs: OK false negative chance: 0.000 # git bisect bad 1eb3dee16a52b1a40a0cccbe79f87b453ddbc1a8 Bisecting: 22 revisions left to test after this (roughly 5 steps) [9593c7cb6cf670ef724d17f7f9affd7a8d2ad0c5] ipv6: tcp: add a missing nf_reset_ct() in 3WHS handling determine whether the revision contains the guilty commit revision 0bb80ecc33a8fb5a682236443c1e740d5c917d1d crashed and is reachable testing commit 9593c7cb6cf670ef724d17f7f9affd7a8d2ad0c5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7923d173af1fd0f480cacf9602c0f95bfe2792da39346e07bec1d486e359f63b all runs: OK false negative chance: 0.000 # git bisect bad 9593c7cb6cf670ef724d17f7f9affd7a8d2ad0c5 Bisecting: 10 revisions left to test after this (roughly 4 steps) [c15cd642d437c9f64d397c14ce734e0554d3977b] Merge tag 'for-net-2023-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth determine whether the revision contains the guilty commit revision 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 crashed and is reachable testing commit c15cd642d437c9f64d397c14ce734e0554d3977b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d37fe9a9639816f7aa0353fa8a8e95a84b35934fa8faddb6a341dfd2c1128e50 all runs: OK false negative chance: 0.000 # git bisect bad c15cd642d437c9f64d397c14ce734e0554d3977b Bisecting: 5 revisions left to test after this (roughly 3 steps) [1d8e801422d66e4b8c7b187c52196bef94eed887] Bluetooth: Avoid redundant authentication determine whether the revision contains the guilty commit revision 0bb80ecc33a8fb5a682236443c1e740d5c917d1d crashed and is reachable testing commit 1d8e801422d66e4b8c7b187c52196bef94eed887 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a29d2e1a0e3c553484a5e093344bd321ea678267f82d8c848c3d94292a88b0d0 all runs: OK false negative chance: 0.000 # git bisect bad 1d8e801422d66e4b8c7b187c52196bef94eed887 Bisecting: 2 revisions left to test after this (roughly 2 steps) [941c998b42f5c90384f49da89a6e11233de567cf] Bluetooth: hci_sync: Fix handling of HCI_QUIRK_STRICT_DUPLICATE_FILTER determine whether the revision contains the guilty commit revision 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 crashed and is reachable testing commit 941c998b42f5c90384f49da89a6e11233de567cf gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bb945d1b6fd93d3a355f8690b8d213cabccd4ce4a8c29d9dbdda0c7a87d81453 all runs: crashed: BUG: sleeping function called from invalid context in hci_cmd_sync_submit representative crash: BUG: sleeping function called from invalid context in hci_cmd_sync_submit, types: [ATOMIC_SLEEP] # git bisect good 941c998b42f5c90384f49da89a6e11233de567cf Bisecting: 0 revisions left to test after this (roughly 1 step) [e0275ea52169412b8faccb4e2f4fed8a057844c6] Bluetooth: ISO: Fix handling of listen for unicast determine whether the revision contains the guilty commit revision 941c998b42f5c90384f49da89a6e11233de567cf crashed and is reachable testing commit e0275ea52169412b8faccb4e2f4fed8a057844c6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a4a8ab835101a773ccea3ac7a6d9406ef3e91a855dc2579da7b800396c1a9299 all runs: OK false negative chance: 0.000 # git bisect bad e0275ea52169412b8faccb4e2f4fed8a057844c6 Bisecting: 0 revisions left to test after this (roughly 0 steps) [c7eaf80bfb0c8cef852cce9501b95dd5a6bddcb9] Bluetooth: Fix hci_link_tx_to RCU lock usage determine whether the revision contains the guilty commit revision 0bb80ecc33a8fb5a682236443c1e740d5c917d1d crashed and is reachable testing commit c7eaf80bfb0c8cef852cce9501b95dd5a6bddcb9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a8f357a7459227720669b072bfe6d41e30e7420a199e88fb3c72e81a72b4b82a all runs: OK false negative chance: 0.000 # git bisect bad c7eaf80bfb0c8cef852cce9501b95dd5a6bddcb9 c7eaf80bfb0c8cef852cce9501b95dd5a6bddcb9 is the first bad commit commit c7eaf80bfb0c8cef852cce9501b95dd5a6bddcb9 Author: Ying Hsu Date: Mon Sep 4 14:11:51 2023 +0000 Bluetooth: Fix hci_link_tx_to RCU lock usage Syzbot found a bug "BUG: sleeping function called from invalid context at kernel/locking/mutex.c:580". It is because hci_link_tx_to holds an RCU read lock and calls hci_disconnect which would hold a mutex lock since the commit a13f316e90fd ("Bluetooth: hci_conn: Consolidate code for aborting connections"). Here's an example call trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xfc/0x174 lib/dump_stack.c:106 ___might_sleep+0x4a9/0x4d3 kernel/sched/core.c:9663 __mutex_lock_common kernel/locking/mutex.c:576 [inline] __mutex_lock+0xc7/0x6e7 kernel/locking/mutex.c:732 hci_cmd_sync_queue+0x3a/0x287 net/bluetooth/hci_sync.c:388 hci_abort_conn+0x2cd/0x2e4 net/bluetooth/hci_conn.c:1812 hci_disconnect+0x207/0x237 net/bluetooth/hci_conn.c:244 hci_link_tx_to net/bluetooth/hci_core.c:3254 [inline] __check_timeout net/bluetooth/hci_core.c:3419 [inline] __check_timeout+0x310/0x361 net/bluetooth/hci_core.c:3399 hci_sched_le net/bluetooth/hci_core.c:3602 [inline] hci_tx_work+0xe8f/0x12d0 net/bluetooth/hci_core.c:3652 process_one_work+0x75c/0xba1 kernel/workqueue.c:2310 worker_thread+0x5b2/0x73a kernel/workqueue.c:2457 kthread+0x2f7/0x30b kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 This patch releases RCU read lock before calling hci_disconnect and reacquires it afterward to fix the bug. Fixes: a13f316e90fd ("Bluetooth: hci_conn: Consolidate code for aborting connections") Signed-off-by: Ying Hsu Signed-off-by: Luiz Augusto von Dentz net/bluetooth/hci_core.c | 5 +++++ 1 file changed, 5 insertions(+) accumulated error probability: 0.00 culprit signature: a8f357a7459227720669b072bfe6d41e30e7420a199e88fb3c72e81a72b4b82a parent signature: bb945d1b6fd93d3a355f8690b8d213cabccd4ce4a8c29d9dbdda0c7a87d81453 revisions tested: 24, total time: 5h30m27.697695732s (build: 2h5m55.487881911s, test: 3h9m47.175853265s) first good commit: c7eaf80bfb0c8cef852cce9501b95dd5a6bddcb9 Bluetooth: Fix hci_link_tx_to RCU lock usage recipients (to): ["johan.hedberg@gmail.com" "linux-bluetooth@vger.kernel.org" "luiz.dentz@gmail.com" "luiz.von.dentz@intel.com" "marcel@holtmann.org" "yinghsu@chromium.org"] recipients (cc): ["linux-kernel@vger.kernel.org"]