ci starts bisection 2023-11-26 04:25:04.426689667 +0000 UTC m=+176873.542343460 bisecting cause commit starting from 8c9660f6515396aba78d1168d2e17951d653ebf2 building syzkaller on 5b429f39ae82dfd954322d3f42c830cf560f51d2 ensuring issue is reproducible on original commit 8c9660f6515396aba78d1168d2e17951d653ebf2 testing commit 8c9660f6515396aba78d1168d2e17951d653ebf2 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3a45123c4bb96c0cfb8aafc72d8ca84a03c7b98fef81483c132308215be396bc all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] check whether we can drop unnecessary instrumentation disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 8c9660f6515396aba78d1168d2e17951d653ebf2 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8fa1a5152f116c0b7f3df793a7ee6420331c4f7f9409690d98472ec85063c40e all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] the bug reproduces without the instrumentation disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed kconfig minimization: base=3923 full=7667 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 [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 8c9660f6515396aba78d1168d2e17951d653ebf2 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d63b2c706978158f6546d823cc26f8ee860efddd364d94a686b8d8c85b7fb088 all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 8c9660f6515396aba78d1168d2e17951d653ebf2 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eabed1dca161395de493aefc4cf9737149df59fa192db774fd018bbefc7758b9 all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 8c9660f6515396aba78d1168d2e17951d653ebf2 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e1fc96a414582335f20eb1a95228b90766659ae1d6f22bc00adb34d68274006b all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 8c9660f6515396aba78d1168d2e17951d653ebf2 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3dc6cf9f1112243f4994315259066ea70657c57fe1bf6cc0449431133b3e1006 all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 8c9660f6515396aba78d1168d2e17951d653ebf2 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 79dc5b8eb60334cf96c06bbe2ccedfd6bb10083fdf39abab12df9c1c63425ebb all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] 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 ACPI_THERMAL_LIB 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 BCACHEFS_SIX_OPTIMISTIC_SPIN 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 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 [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], 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: ad2badf01a70affd0bb1c3d6b1ed27376de9d3585ee18b5ccbc091aee8ce60e0 all runs: OK false negative chance: 0.000 # git bisect start 8c9660f6515396aba78d1168d2e17951d653ebf2 ffc253263a1375a65fa6c9f62a893e9767fbebfa Bisecting: 9729 revisions left to test after this (roughly 13 steps) [c035f0268b87fc21f517f638b3bad26c81babc85] Merge tag 'soc-dt-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc testing commit c035f0268b87fc21f517f638b3bad26c81babc85 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4008401d0bedad0c6e59fd5bb5147c4b2438208716114f6b489c6a7df712110b all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] # git bisect bad c035f0268b87fc21f517f638b3bad26c81babc85 Bisecting: 3994 revisions left to test after this (roughly 12 steps) [89ed67ef126c4160349c1b96fdb775ea6170ac90] Merge tag 'net-next-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next testing commit 89ed67ef126c4160349c1b96fdb775ea6170ac90 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bd59ff987b4ed9041aab2413ce9f6e757595d07c8cede3d7443699317af4d236 all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] # git bisect bad 89ed67ef126c4160349c1b96fdb775ea6170ac90 Bisecting: 3061 revisions left to test after this (roughly 12 steps) [b827ac419721a106ae2fccaa40576b0594edad92] exportfs: Change bcachefs fid_type enum to avoid conflicts testing commit b827ac419721a106ae2fccaa40576b0594edad92 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 111cd0a5597ad6c0a7e5829ecff54d2dd813cfd6f339ef4ff7a79abe39b260b6 all runs: OK false negative chance: 0.000 # git bisect good b827ac419721a106ae2fccaa40576b0594edad92 Bisecting: 1530 revisions left to test after this (roughly 11 steps) [d1a02ed66fe62aa2edd77bd54e270ebc33bd12ff] tcp: rename tcp_skb_timestamp() testing commit d1a02ed66fe62aa2edd77bd54e270ebc33bd12ff gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e17e7a0bc397e7deb619aa4bb760d17419bd2a7a828fed6975adb0b4d03521b4 all runs: OK false negative chance: 0.000 # git bisect good d1a02ed66fe62aa2edd77bd54e270ebc33bd12ff Bisecting: 770 revisions left to test after this (roughly 10 steps) [5780e39edbb49bb441f1c8eb9e6cb8be92dee31d] Merge tag 'x86-asm-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 5780e39edbb49bb441f1c8eb9e6cb8be92dee31d gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e5eaf9e5ae74a5c027a5798f702a2572ba28b302ca26c62946c6f8eb0aef35be all runs: OK false negative chance: 0.000 # git bisect good 5780e39edbb49bb441f1c8eb9e6cb8be92dee31d Bisecting: 385 revisions left to test after this (roughly 9 steps) [0a3a809089eb1d4a0a2fd0c16b520d603988c859] net/tcp: Verify inbound TCP-AO signed segments testing commit 0a3a809089eb1d4a0a2fd0c16b520d603988c859 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5c6849c3bef482ac9f682edc7e98d1de3ae46d08af4995f2de8c85392bc1e628 all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] # git bisect bad 0a3a809089eb1d4a0a2fd0c16b520d603988c859 Bisecting: 176 revisions left to test after this (roughly 8 steps) [c6f9b7138bf5c6b826175c9e0ad5f5dbfff4fa36] Merge tag 'for-netdev' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next testing commit c6f9b7138bf5c6b826175c9e0ad5f5dbfff4fa36 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ead8066fbc106c3386827760e3f7cf595c0c574f1665d598349e5cbb993d9db3 all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] # git bisect bad c6f9b7138bf5c6b826175c9e0ad5f5dbfff4fa36 Bisecting: 103 revisions left to test after this (roughly 7 steps) [d0110443cf4a15267322f84210007943f5b01ae0] amd/pds_core: core: No need for Null pointer check before kfree testing commit d0110443cf4a15267322f84210007943f5b01ae0 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5e9813acacf3356ad29c8331dd9ae0bbd1b199609e39a87fc9b6e0ed9b4dce37 all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] # git bisect bad d0110443cf4a15267322f84210007943f5b01ae0 Bisecting: 51 revisions left to test after this (roughly 6 steps) [8ab32fa1c7947f4807b1d98af2d411a2587bb841] page_pool: update document about fragment API testing commit 8ab32fa1c7947f4807b1d98af2d411a2587bb841 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3e1c2efe85196448cec79a1d9e7e8db623125bf759e0b3219acd4c29fc5428a3 all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] # git bisect bad 8ab32fa1c7947f4807b1d98af2d411a2587bb841 Bisecting: 25 revisions left to test after this (roughly 5 steps) [f4da3ee15de9944482382181329bb6d7335ca003] Bluetooth: ISO: Copy BASE if service data matches EIR_BAA_SERVICE_UUID testing commit f4da3ee15de9944482382181329bb6d7335ca003 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 453d377ae65ad5b4f06e33c49c534c21d7fec0a3cf37e0e683aaa8f915996671 all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] # git bisect bad f4da3ee15de9944482382181329bb6d7335ca003 Bisecting: 12 revisions left to test after this (roughly 4 steps) [a254b90c9aac3d3d938a07e019773e35a977451b] Bluetooth: ISO: Fix BIS cleanup testing commit a254b90c9aac3d3d938a07e019773e35a977451b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 05e955ebc26154ba6e48716b173a313293d059b884f9a2903ac44ae173d15ff2 all runs: OK false negative chance: 0.000 # git bisect good a254b90c9aac3d3d938a07e019773e35a977451b Bisecting: 6 revisions left to test after this (roughly 3 steps) [02be109d3a405dbc4d53fb4b4473d7a113548088] Bluetooth: btusb: Add RTW8852BE device 13d3:3570 to device tables testing commit 02be109d3a405dbc4d53fb4b4473d7a113548088 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 88a21d799fe8bc0d1c5652a3a1a77cd861b1a10f39c1af9f3c2b71713b6bf691 all runs: OK false negative chance: 0.000 # git bisect good 02be109d3a405dbc4d53fb4b4473d7a113548088 Bisecting: 3 revisions left to test after this (roughly 2 steps) [41c56aa94c647a0f84c5c33fffb3f283e6f0e5bf] Bluetooth: msft: __hci_cmd_sync() doesn't return NULL testing commit 41c56aa94c647a0f84c5c33fffb3f283e6f0e5bf gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 123d5bbd5ad02eae663eb8fb6d04722c4d45f9d18a57c867d8daea7ec371be12 all runs: OK false negative chance: 0.000 # git bisect good 41c56aa94c647a0f84c5c33fffb3f283e6f0e5bf Bisecting: 1 revision left to test after this (roughly 1 step) [624820f7c8826dd010e8b1963303c145f99816e9] Bluetooth: btusb: Add date->evt_skb is NULL check testing commit 624820f7c8826dd010e8b1963303c145f99816e9 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 99db6f1aac21550a6bbcb0d13014179e7cab657c69d6e9f84547931744b363b9 all runs: OK false negative chance: 0.000 # git bisect good 624820f7c8826dd010e8b1963303c145f99816e9 Bisecting: 0 revisions left to test after this (roughly 0 steps) [181a42edddf51d5d9697ecdf365d72ebeab5afb0] Bluetooth: Make handle of hci_conn be unique testing commit 181a42edddf51d5d9697ecdf365d72ebeab5afb0 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: af8cdbddc193e9fbead40f1f68e4e56ef0ee5147c103d2c055248d6a4a472016 all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] # git bisect bad 181a42edddf51d5d9697ecdf365d72ebeab5afb0 181a42edddf51d5d9697ecdf365d72ebeab5afb0 is the first bad commit commit 181a42edddf51d5d9697ecdf365d72ebeab5afb0 Author: Ziyang Xuan Date: Wed Oct 11 17:57:31 2023 +0800 Bluetooth: Make handle of hci_conn be unique The handle of new hci_conn is always HCI_CONN_HANDLE_MAX + 1 if the handle of the first hci_conn entry in hci_dev->conn_hash->list is not HCI_CONN_HANDLE_MAX + 1. Use ida to manage the allocation of hci_conn->handle to make it be unique. Fixes: 9f78191cc9f1 ("Bluetooth: hci_conn: Always allocate unique handles") Signed-off-by: Ziyang Xuan Signed-off-by: Luiz Augusto von Dentz include/net/bluetooth/hci_core.h | 6 ++++- net/bluetooth/amp.c | 3 +-- net/bluetooth/hci_conn.c | 57 ++++++++++++++++++++++------------------ net/bluetooth/hci_core.c | 3 +++ net/bluetooth/hci_event.c | 38 +++++++++++---------------- 5 files changed, 56 insertions(+), 51 deletions(-) accumulated error probability: 0.00 culprit signature: af8cdbddc193e9fbead40f1f68e4e56ef0ee5147c103d2c055248d6a4a472016 parent signature: 99db6f1aac21550a6bbcb0d13014179e7cab657c69d6e9f84547931744b363b9 revisions tested: 23, total time: 6h48m57.882155275s (build: 3h52m4.432034105s, test: 2h39m31.980183042s) first bad commit: 181a42edddf51d5d9697ecdf365d72ebeab5afb0 Bluetooth: Make handle of hci_conn be unique 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" "william.xuanziyang@huawei.com"] recipients (cc): ["linux-kernel@vger.kernel.org"] crash: KASAN: null-ptr-deref Read in ida_free Bluetooth: hci0: command 0x0409 tx timeout Bluetooth: hci0: Controller not accepting commands anymore: ncmd = 0 Bluetooth: hci0: Injecting HCI hardware error event Bluetooth: hci0: hardware error 0x00 ================================================================== BUG: KASAN: null-ptr-deref in instrument_atomic_read include/linux/instrumented.h:68 [inline] BUG: KASAN: null-ptr-deref in _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] BUG: KASAN: null-ptr-deref in ida_free+0x15b/0x1d0 lib/idr.c:511 Read of size 8 at addr 0000000000000078 by task kworker/u5:1/1269 CPU: 0 PID: 1269 Comm: kworker/u5:1 Not tainted 6.6.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 Workqueue: hci0 hci_error_reset Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x3d/0x60 lib/dump_stack.c:106 kasan_report+0xda/0x110 mm/kasan/report.c:588 check_region_inline mm/kasan/generic.c:181 [inline] kasan_check_range+0xef/0x190 mm/kasan/generic.c:187 instrument_atomic_read include/linux/instrumented.h:68 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] ida_free+0x15b/0x1d0 lib/idr.c:511 hci_conn_cleanup net/bluetooth/hci_conn.c:157 [inline] hci_conn_del+0x64c/0xc60 net/bluetooth/hci_conn.c:1184 hci_conn_hash_flush+0x15e/0x230 net/bluetooth/hci_conn.c:2617 hci_dev_close_sync+0x492/0xf50 net/bluetooth/hci_sync.c:5021 hci_dev_do_close+0x24/0x80 net/bluetooth/hci_core.c:554 hci_error_reset+0x89/0x160 net/bluetooth/hci_core.c:1059 process_one_work+0x72e/0x11b0 kernel/workqueue.c:2630 process_scheduled_works kernel/workqueue.c:2703 [inline] worker_thread+0x6b3/0x1080 kernel/workqueue.c:2784 kthread+0x278/0x330 kernel/kthread.c:388 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 ==================================================================