ci starts bisection 2023-10-17 11:56:27.34996149 +0000 UTC m=+27004.274916923 bisecting fixing commit since 92901222f83d988617aee37680cb29e1a743b5e4 building syzkaller on 696ea0d2f4fdaa17db929e152edba19bf7666d84 ensuring issue is reproducible on original commit 92901222f83d988617aee37680cb29e1a743b5e4 testing commit 92901222f83d988617aee37680cb29e1a743b5e4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1f43c78cb5d4d4857d8e0fd3f6524354b5093309be074178ef4f283e21335a92 all runs: crashed: general protection fault in hci_register_dev representative crash: general protection fault in hci_register_dev, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 92901222f83d988617aee37680cb29e1a743b5e4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fea56e93ac8a4a1c23c11116582059b02f8122dbeb782af336c46548f24db347 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed kconfig minimization: base=3883 full=7690 leaves diff=2019 split chunks (needed=false): <2019> split chunk #0 of len 2019 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 92901222f83d988617aee37680cb29e1a743b5e4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b059ee458071ec4e86ceb2456bd7a70095107a5e172f251fcaa1a0040a7d4f65 all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 92901222f83d988617aee37680cb29e1a743b5e4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fc48f7f87f5354bbc182ffcb6de957964085478885cbed08ff906b54b2c69905 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 92901222f83d988617aee37680cb29e1a743b5e4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6edc207cc431a8eb2be5a7325c01d1327e660c4bdd90e4b5a07931ec2deaca90 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 92901222f83d988617aee37680cb29e1a743b5e4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 055d9515b69a6b2effb132d69b4a3f186c4a1f74d9a73c3b523ca542d787cd01 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 92901222f83d988617aee37680cb29e1a743b5e4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: aab4c2cd500c0882daa668dea3af37017094b543f44daa5fb3b88f5d73d22f9c all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] the chunk can be dropped minimized to 404 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_SUPPORTS_CRASH_DUMP ARCH_SUPPORTS_CRASH_HOTPLUG ARCH_SUPPORTS_KEXEC ARCH_SUPPORTS_KEXEC_BZIMAGE_VERIFY_SIG ARCH_SUPPORTS_KEXEC_FILE ARCH_SUPPORTS_KEXEC_JUMP ARCH_SUPPORTS_KEXEC_SIG ARCH_SUPPORTS_KEXEC_SIG_FORCE ARCH_WANT_OPTIMIZE_DAX_VMEMMAP ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP 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_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 BUFFER_HEAD 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 CRASH_HOTPLUG 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_ECB 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 DMA_NUMA_CMA 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 ENCRYPTED_KEYS EXTCON FSCACHE FUSE_FS GPIOLIB HAMRADIO 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 [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing current HEAD 213f891525c222e8ed145ce1ce7ae1f47921cb9c testing commit 213f891525c222e8ed145ce1ce7ae1f47921cb9c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 99ec18c537cce43567704679734c4d5007129e96e4e57e03074f8b3a7a1d4213 all runs: OK false negative chance: 0.000 # git bisect start 213f891525c222e8ed145ce1ce7ae1f47921cb9c 92901222f83d988617aee37680cb29e1a743b5e4 Bisecting: 1845 revisions left to test after this (roughly 11 steps) [2d71340ff1d41a5b9fc1b30ded12d638b2e2ae96] iov_iter: Kunit tests for copying to/from an iterator determine whether the revision contains the guilty commit revision 92901222f83d988617aee37680cb29e1a743b5e4 crashed and is reachable testing commit 2d71340ff1d41a5b9fc1b30ded12d638b2e2ae96 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 675c1a7caddafd3faaf173b5433cdb2bf2739afabd9183cca10f3a0583c25958 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] # git bisect good 2d71340ff1d41a5b9fc1b30ded12d638b2e2ae96 Bisecting: 920 revisions left to test after this (roughly 10 steps) [8a511e7efc5a72173f64d191f01cda236d54e27a] Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm determine whether the revision contains the guilty commit revision 2d71340ff1d41a5b9fc1b30ded12d638b2e2ae96 crashed and is reachable testing commit 8a511e7efc5a72173f64d191f01cda236d54e27a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0acb70efb1a37985042b5c8757cad8132fb54cb8c392138d07fa66fea313b724 all runs: OK false negative chance: 0.000 # git bisect bad 8a511e7efc5a72173f64d191f01cda236d54e27a Bisecting: 465 revisions left to test after this (roughly 9 steps) [cc3e5afc6a8c5d9d1c30e7612da80ca327e43552] Merge tag 'ata-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata determine whether the revision contains the guilty commit revision 92901222f83d988617aee37680cb29e1a743b5e4 crashed and is reachable testing commit cc3e5afc6a8c5d9d1c30e7612da80ca327e43552 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 46f44f54afaa1a9c6ce41859caf7825eac699fa008df965cfdf0fa6bd050ce87 all runs: OK false negative chance: 0.000 # git bisect bad cc3e5afc6a8c5d9d1c30e7612da80ca327e43552 Bisecting: 228 revisions left to test after this (roughly 8 steps) [535a265d7f0dd50d8c3a4f8b4f3a452d56bd160f] Merge tag 'perf-tools-for-v6.6-1-2023-09-05' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools determine whether the revision contains the guilty commit revision 92901222f83d988617aee37680cb29e1a743b5e4 crashed and is reachable testing commit 535a265d7f0dd50d8c3a4f8b4f3a452d56bd160f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2412028bfcdd253620845cae501f34b99786f7d48f5703c039211781760ef05a all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] # git bisect good 535a265d7f0dd50d8c3a4f8b4f3a452d56bd160f Bisecting: 102 revisions left to test after this (roughly 7 steps) [9fdfb15a3dbf818e06be514f4abbfc071004cbe7] Merge tag 'net-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net determine whether the revision contains the guilty commit revision 2d71340ff1d41a5b9fc1b30ded12d638b2e2ae96 crashed and is reachable testing commit 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 09aa8e935821459df0329e3c2f7746b9e59323a984f918e4fe1fb7ed2f1a0682 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] # git bisect good 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 Bisecting: 52 revisions left to test after this (roughly 6 steps) [31d8fddb588bc7e3ba40bffa7573b7f7c7c73aa3] Merge tag 'io_uring-6.6-2023-09-15' of git://git.kernel.dk/linux determine whether the revision contains the guilty commit revision 535a265d7f0dd50d8c3a4f8b4f3a452d56bd160f crashed and is reachable testing commit 31d8fddb588bc7e3ba40bffa7573b7f7c7c73aa3 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 25e9bf7d4e7c74eb4da5f25064b2d07bc232bfbaf5cdcd2ee7acea552f86fa8e all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] # git bisect good 31d8fddb588bc7e3ba40bffa7573b7f7c7c73aa3 Bisecting: 26 revisions left to test after this (roughly 5 steps) [d8d7cd656361529c334e3b90535e81d818fc1157] Merge tag 'nfsd-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux determine whether the revision contains the guilty commit revision 2d71340ff1d41a5b9fc1b30ded12d638b2e2ae96 crashed and is reachable testing commit d8d7cd656361529c334e3b90535e81d818fc1157 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ef9f6681e3102c87819e7702142a2fd2d6cb12a8905c51cabc4765778474337f all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] # git bisect good d8d7cd656361529c334e3b90535e81d818fc1157 Bisecting: 12 revisions left to test after this (roughly 4 steps) [fd455e77a67690aab2aae885fa0e2e2a9b98bd2b] Merge tag 'char-misc-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc determine whether the revision contains the guilty commit revision 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 crashed and is reachable testing commit fd455e77a67690aab2aae885fa0e2e2a9b98bd2b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: aa19cfa3f4191cc1e8d844ac075c70493cd207b95b785aaa6a24f59ab946603a all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] # git bisect good fd455e77a67690aab2aae885fa0e2e2a9b98bd2b Bisecting: 6 revisions left to test after this (roughly 3 steps) [7a3bc2b3989e05bbaa904a63279049a401491c84] ata: libata-eh: do not thaw the port twice in ata_eh_reset() determine whether the revision contains the guilty commit revision 92901222f83d988617aee37680cb29e1a743b5e4 crashed and is reachable testing commit 7a3bc2b3989e05bbaa904a63279049a401491c84 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: acefc367852aaa644d8f8628cc7af722334e1f6c135f08d6a60b24f3e79ec529 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] # git bisect good 7a3bc2b3989e05bbaa904a63279049a401491c84 Bisecting: 3 revisions left to test after this (roughly 2 steps) [205d0494782ff7062afedf8945c085b49ccada7d] Merge tag 'driver-core-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core determine whether the revision contains the guilty commit revision 9fdfb15a3dbf818e06be514f4abbfc071004cbe7 crashed and is reachable testing commit 205d0494782ff7062afedf8945c085b49ccada7d gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e2b6d82e39730e386a5f4e3bf04c8784fe12dec19fcd138dee4d4b46f78b8e8f all runs: OK false negative chance: 0.000 # git bisect bad 205d0494782ff7062afedf8945c085b49ccada7d Bisecting: 0 revisions left to test after this (roughly 1 step) [139e08188babf7a4c5f0df54b605105852fc347a] Documentation: embargoed-hardware-issues.rst: Add myself for RISC-V determine whether the revision contains the guilty commit revision 92901222f83d988617aee37680cb29e1a743b5e4 crashed and is reachable testing commit 139e08188babf7a4c5f0df54b605105852fc347a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e77e031739c888ed01e64eb5cc37ea4a3c004912e38c6b4ad34e561a8dd97365 all runs: OK false negative chance: 0.000 # git bisect bad 139e08188babf7a4c5f0df54b605105852fc347a Bisecting: 0 revisions left to test after this (roughly 0 steps) [fd6f7ad2fd4d53fa14f4fd190f9b05d043973892] driver core: return an error when dev_set_name() hasn't happened determine whether the revision contains the guilty commit revision 535a265d7f0dd50d8c3a4f8b4f3a452d56bd160f crashed and is reachable testing commit fd6f7ad2fd4d53fa14f4fd190f9b05d043973892 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: df0999429dda0ed508ca23d30cda5bc1afa08e32fb0af7d65e0ccb98c9d1f272 all runs: OK false negative chance: 0.000 # git bisect bad fd6f7ad2fd4d53fa14f4fd190f9b05d043973892 fd6f7ad2fd4d53fa14f4fd190f9b05d043973892 is the first bad commit commit fd6f7ad2fd4d53fa14f4fd190f9b05d043973892 Author: Andy Shevchenko Date: Mon Aug 28 17:58:24 2023 +0300 driver core: return an error when dev_set_name() hasn't happened The commit d21fdd07cea4 ("driver core: Return proper error code when dev_set_name() fails") rewrote the logic of handling the dev_set_name() error codes, but missed the point that initially set error value to -EINVAL might be rewritten and hence the error path can't be triggered at some circumstances. To fix this, make sure that error variable is set to -EINVAL when other conditionals are false. Reported-by: syzbot+bdfb03b1ec8b342c12cb@syzkaller.appspotmail.com Fixes: d21fdd07cea4 ("driver core: Return proper error code when dev_set_name() fails") Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20230828145824.3895288-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman drivers/base/core.c | 2 ++ 1 file changed, 2 insertions(+) accumulated error probability: 0.00 parent commit 0bb80ecc33a8fb5a682236443c1e740d5c917d1d wasn't tested testing commit 0bb80ecc33a8fb5a682236443c1e740d5c917d1d gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e6a5c92cd68ae3ccf303b60f9bd5d24864da8fa830a65db302af17b3dfb1323e culprit signature: df0999429dda0ed508ca23d30cda5bc1afa08e32fb0af7d65e0ccb98c9d1f272 parent signature: e6a5c92cd68ae3ccf303b60f9bd5d24864da8fa830a65db302af17b3dfb1323e revisions tested: 20, total time: 3h55m41.928027112s (build: 1h44m51.946889705s, test: 1h56m50.265226253s) first good commit: fd6f7ad2fd4d53fa14f4fd190f9b05d043973892 driver core: return an error when dev_set_name() hasn't happened recipients (to): ["andriy.shevchenko@linux.intel.com" "gregkh@linuxfoundation.org" "gregkh@linuxfoundation.org" "linux-kernel@vger.kernel.org"] recipients (cc): ["rafael@kernel.org"]