ci starts bisection 2024-01-21 01:52:15.855572703 +0000 UTC m=+82273.162172148 bisecting fixing commit since e1df5202e879bce09845ac62bae30206e1edfb80 building syzkaller on 5b429f39ae82dfd954322d3f42c830cf560f51d2 ensuring issue is reproducible on original commit e1df5202e879bce09845ac62bae30206e1edfb80 testing commit e1df5202e879bce09845ac62bae30206e1edfb80 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f93cb61b41d1e3bc835d172ac161e7cd1940498a3103b419bf6fe4ab990d13b7 all runs: crashed: kernel BUG in prog_array_map_poke_run representative crash: kernel BUG in prog_array_map_poke_run, types: [BUG] check whether we can drop unnecessary instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit e1df5202e879bce09845ac62bae30206e1edfb80 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e4f941eafaad0e1e9bccccb98d7c0a38bfbb2235af51ebd371e70dd51dece1b7 all runs: crashed: kernel BUG in prog_array_map_poke_run representative crash: kernel BUG in prog_array_map_poke_run, types: [BUG] the bug reproduces without the instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed kconfig minimization: base=3923 full=7658 leaves diff=2007 split chunks (needed=false): <2007> split chunk #0 of len 2007 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit e1df5202e879bce09845ac62bae30206e1edfb80 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f25f269b54e8c29a6e311deb9b474c07472f6c333c342b34ea6c5750e365a3d7 all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit e1df5202e879bce09845ac62bae30206e1edfb80 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 815a1cf9e0aa0703712593cba1a9ac5b0fe9ec5a130461e5510e4edd41dd1d2a all runs: crashed: kernel BUG in prog_array_map_poke_run representative crash: kernel BUG in prog_array_map_poke_run, types: [BUG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit e1df5202e879bce09845ac62bae30206e1edfb80 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4e509ee618f00c9b3bda31170e027cf1eb57fee8ab4d85211fdebc9961d14306 all runs: crashed: kernel BUG in prog_array_map_poke_run representative crash: kernel BUG in prog_array_map_poke_run, types: [BUG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit e1df5202e879bce09845ac62bae30206e1edfb80 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e270a3cf1bfa631eebd1dd2b08fd713dd9fc2ed45f2bf69c0e4458e299a3101d all runs: crashed: kernel BUG in prog_array_map_poke_run representative crash: kernel BUG in prog_array_map_poke_run, types: [BUG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit e1df5202e879bce09845ac62bae30206e1edfb80 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a6e16391397aa2979753ede50378dee30c6f16a504dae41de9eb2df7cbcddaa6 all runs: crashed: kernel BUG in prog_array_map_poke_run representative crash: kernel BUG in prog_array_map_poke_run, types: [BUG] 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 BCACHEFS_DEBUG BCACHEFS_FS BCACHEFS_QUOTA BCMA BCMA_HOST_PCI_POSSIBLE BEFS_FS BFQ_CGROUP_DEBUG BFQ_GROUP_IOSCHED BFS_FS BIG_KEYS BLK_CGROUP_PUNT_BIO BLK_CGROUP_RWSTAT BLK_DEBUG_FS_ZONED BLK_DEV_BSGLIB BLK_DEV_INTEGRITY BLK_DEV_INTEGRITY_T10 BLK_DEV_NBD BLK_DEV_NULL_BLK BLK_DEV_NULL_BLK_FAULT_INJECTION BLK_DEV_NVME BLK_DEV_PMEM BLK_DEV_RAM BLK_DEV_RNBD BLK_DEV_RNBD_CLIENT BLK_DEV_THROTTLING BLK_DEV_ZONED BLK_ICQ BLK_INLINE_ENCRYPTION BLK_INLINE_ENCRYPTION_FALLBACK BLK_WBT BLK_WBT_MQ BONDING BOOT_VESA_SUPPORT BPF_EVENTS BPF_JIT BPF_JIT_ALWAYS_ON BPF_JIT_DEFAULT_ON BPF_LSM BPF_PRELOAD BPF_PRELOAD_UMD BPF_STREAM_PARSER BPF_SYSCALL BPQETHER BRIDGE BRIDGE_CFM BRIDGE_EBT_802_3 BRIDGE_EBT_AMONG BRIDGE_EBT_ARP BRIDGE_EBT_ARPREPLY BRIDGE_EBT_BROUTE BRIDGE_EBT_DNAT BRIDGE_EBT_IP BRIDGE_EBT_IP6 BRIDGE_EBT_LIMIT BRIDGE_EBT_LOG BRIDGE_EBT_MARK BRIDGE_EBT_MARK_T BRIDGE_EBT_NFLOG BRIDGE_EBT_PKTTYPE BRIDGE_EBT_REDIRECT BRIDGE_EBT_SNAT BRIDGE_EBT_STP BRIDGE_EBT_T_FILTER BRIDGE_EBT_T_NAT BRIDGE_EBT_VLAN BRIDGE_IGMP_SNOOPING BRIDGE_MRP BRIDGE_NF_EBTABLES BRIDGE_VLAN_FILTERING BSD_DISKLABEL BSD_PROCESS_ACCT_V3 BT BTRFS_ASSERT BTRFS_FS BTRFS_FS_POSIX_ACL BTRFS_FS_REF_VERIFY BTT BT_6LOWPAN BT_ATH3K BT_BCM BT_BNEP BT_BNEP_MC_FILTER BT_BNEP_PROTO_FILTER BT_BREDR BT_CMTP BT_HCIBCM203X BT_HCIBFUSB BT_HCIBPA10X BT_HCIBTUSB BT_HCIBTUSB_BCM BT_HCIBTUSB_MTK BT_HCIBTUSB_POLL_SYNC BT_HCIBTUSB_RTL BT_HCIUART BT_HCIUART_3WIRE BT_HCIUART_AG6XX BT_HCIUART_BCSP BT_HCIUART_H4 BT_HCIUART_LL BT_HCIUART_MRVL BT_HCIUART_QCA BT_HCIUART_SERDEV BT_HCIVHCI BT_HIDP BT_HS BT_INTEL BT_LE BT_LEDS BT_LE_L2CAP_ECRED BT_MSFTEXT BT_MTK BT_QCA BT_RFCOMM BT_RFCOMM_TTY BT_RTL CACHEFILES CAIF CAIF_DEBUG CAIF_DRIVERS CAIF_NETDEV CAIF_TTY CAIF_USB CAIF_VIRTIO CAN CAN_8DEV_USB CAN_BCM CAN_CALC_BITTIMING CAN_DEV CAN_EMS_USB CAN_GS_USB CAN_GW CAN_IFI_CANFD CAN_ISOTP CAN_J1939 CAN_KVASER_USB CAN_MCBA_USB CAN_NETLINK CAN_PEAK_USB CAN_RAW CAN_RX_OFFLOAD CAN_SLCAN CAN_VCAN CAN_VXCAN CAPI_TRACE CARL9170 CARL9170_HWRNG CARL9170_LEDS CARL9170_WPC CEC_CORE CEPH_FS CEPH_FSCACHE CEPH_FS_POSIX_ACL CEPH_LIB CEPH_LIB_USE_DNS_RESOLVER CFG80211 CFG80211_CRDA_SUPPORT CFG80211_DEBUGFS CFG80211_DEFAULT_PS CFG80211_REQUIRE_SIGNED_REGDB CFG80211_USE_KERNEL_REGDB_KEYS CFG80211_WEXT CFS_BANDWIDTH CGROUP_BPF CHARGER_BQ24190 CHARGER_ISP1704 CHR_DEV_ST CIFS CIFS_ALLOW_INSECURE_LEGACY CIFS_DEBUG CIFS_DFS_UPCALL CIFS_FSCACHE CIFS_POSIX CIFS_SMB_DIRECT CIFS_SWN_UPCALL CIFS_UPCALL CIFS_XATTR CLOSURES CLS_U32_MARK CLS_U32_PERF CMA CMA_SIZE_SEL_MBYTES CMDLINE_PARTITION COMEDI COMEDI_DT9812 COMEDI_NI_USB6501 COMEDI_USBDUX COMEDI_USBDUXFAST COMEDI_USBDUXSIGMA COMEDI_USB_DRIVERS COMEDI_VMK80XX COMPAT_NETLINK_MESSAGES COUNTER CRAMFS CRAMFS_BLOCKDEV CRAMFS_MTD CRC4 CRC64 CRC64_ROCKSOFT CRC7 CRC8 CRC_ITU_T CRC_T10DIF CRYPTO_ADIANTUM CRYPTO_AEGIS128 CRYPTO_AEGIS128_AESNI_SSE2 CRYPTO_AES_NI_INTEL CRYPTO_AES_TI CRYPTO_ANSI_CPRNG CRYPTO_ANUBIS CRYPTO_ARC4 CRYPTO_ARCH_HAVE_LIB_BLAKE2S CRYPTO_ARCH_HAVE_LIB_CHACHA CRYPTO_ARCH_HAVE_LIB_CURVE25519 CRYPTO_ARCH_HAVE_LIB_POLY1305 CRYPTO_ARIA CRYPTO_ARIA_AESNI_AVX_X86_64 CRYPTO_BLAKE2B CRYPTO_BLAKE2S_X86 CRYPTO_BLOWFISH CRYPTO_BLOWFISH_COMMON CRYPTO_BLOWFISH_X86_64 CRYPTO_CAMELLIA CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 CRYPTO_CAMELLIA_AESNI_AVX_X86_64 CRYPTO_CAMELLIA_X86_64 CRYPTO_CAST5 CRYPTO_CAST5_AVX_X86_64 CRYPTO_CAST6 CRYPTO_CAST6_AVX_X86_64 CRYPTO_CAST_COMMON CRYPTO_CFB CRYPTO_CHACHA20 CRYPTO_CHACHA20POLY1305 CRYPTO_CHACHA20_X86_64 CRYPTO_CRC32 CRYPTO_CRC32C_INTEL CRYPTO_CRC32_PCLMUL CRYPTO_CRC64_ROCKSOFT CRYPTO_CRCT10DIF CRYPTO_CRCT10DIF_PCLMUL CRYPTO_CRYPTD CRYPTO_CTS CRYPTO_CURVE25519 CRYPTO_CURVE25519_X86 CRYPTO_DEFLATE CRYPTO_DES CRYPTO_DES3_EDE_X86_64 CRYPTO_DEV_CCP CRYPTO_DEV_CCP_DD CRYPTO_DEV_PADLOCK CRYPTO_DEV_PADLOCK_AES CRYPTO_DEV_PADLOCK_SHA CRYPTO_DEV_QAT CRYPTO_DEV_QAT_C3XXX CRYPTO_DEV_QAT_C3XXXVF CRYPTO_DEV_QAT_C62X CRYPTO_DEV_QAT_C62XVF CRYPTO_DEV_QAT_DH895xCC CRYPTO_DEV_QAT_DH895xCCVF CRYPTO_DEV_VIRTIO CRYPTO_DH CRYPTO_DRBG_CTR CRYPTO_DRBG_HASH CRYPTO_ECC CRYPTO_ECDH CRYPTO_ECRDSA CRYPTO_ENGINE CRYPTO_ESSIV CRYPTO_FCRYPT CRYPTO_GHASH_CLMUL_NI_INTEL CRYPTO_HCTR2 CRYPTO_KDF800108_CTR CRYPTO_KEYWRAP CRYPTO_KHAZAD CRYPTO_KPP CRYPTO_LIB_ARC4 CRYPTO_LIB_CHACHA CRYPTO_LIB_CHACHA20POLY1305 CRYPTO_LIB_CHACHA_GENERIC CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_DES CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LRW CRYPTO_MICHAEL_MIC CRYPTO_NHPOLY1305 CRYPTO_NHPOLY1305_AVX2 CRYPTO_NHPOLY1305_SSE2 CRYPTO_OFB CRYPTO_PCBC CRYPTO_PCRYPT CRYPTO_POLY1305 CRYPTO_POLY1305_X86_64 CRYPTO_POLYVAL CRYPTO_POLYVAL_CLMUL_NI CRYPTO_RMD160 CRYPTO_SEED CRYPTO_SERPENT CRYPTO_SERPENT_AVX2_X86_64 CRYPTO_SERPENT_AVX_X86_64 CRYPTO_SERPENT_SSE2_X86_64 CRYPTO_SHA1_SSSE3 CRYPTO_SHA256_SSSE3 CRYPTO_SHA512_SSSE3 CRYPTO_SIMD CRYPTO_SM2 CRYPTO_SM3 CRYPTO_SM3_AVX_X86_64 CRYPTO_SM4 CRYPTO_SM4_AESNI_AVX2_X86_64 CRYPTO_SM4_AESNI_AVX_X86_64 CRYPTO_SM4_GENERIC CRYPTO_STREEBOG CRYPTO_TEA CRYPTO_TWOFISH CRYPTO_TWOFISH_AVX_X86_64 CRYPTO_TWOFISH_COMMON CRYPTO_TWOFISH_X86_64 CRYPTO_TWOFISH_X86_64_3WAY CRYPTO_USER CRYPTO_USER_API CRYPTO_USER_API_AEAD CRYPTO_USER_API_ENABLE_OBSOLETE CRYPTO_USER_API_HASH CRYPTO_USER_API_RNG CRYPTO_USER_API_SKCIPHER CRYPTO_VMAC CRYPTO_WP512 CRYPTO_XCBC CRYPTO_XCTR CRYPTO_XTS CRYPTO_XXHASH CUSE CYPRESS_FIRMWARE DAMON DAMON_DBGFS DAMON_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEFAULT_PFIFO_FAST DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DIMLIB DLN2_ADC DMABUF_HEAPS DMABUF_HEAPS_CMA DMABUF_HEAPS_SYSTEM DMABUF_MOVE_NOTIFY DMA_CMA DMA_ENGINE_RAID DM_AUDIT DM_BIO_PRISON DM_BUFIO DM_CACHE DM_CACHE_SMQ DM_CLONE DM_CRYPT DM_FLAKEY DM_INTEGRITY DM_MULTIPATH DM_MULTIPATH_QL DM_MULTIPATH_ST DM_PERSISTENT_DATA DM_RAID DM_SNAPSHOT DM_THIN_PROVISIONING DM_UEVENT DM_VERITY DM_VERITY_FEC DM_WRITECACHE DM_ZONED DRAGONRISE_FF DRM DRM_BOCHS DRM_BUDDY DRM_CIRRUS_QEMU ENCRYPTED_KEYS EXTCON FSCACHE FUSE_FS GPIOLIB HAMRADIO HID_DRAGONRISE IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOSCHED_BFQ ISDN ISDN_CAPI LIBNVDIMM MAC80211 MAC80211_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 [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing current HEAD 736b5545d39ca59d4332a60e56cc8a1a5e264a8e testing commit 736b5545d39ca59d4332a60e56cc8a1a5e264a8e gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 343e7765e8895c5881a2e51cf954105df5471db5b26e21ac0677c0cca6f0a295 all runs: OK false negative chance: 0.000 # git bisect start 736b5545d39ca59d4332a60e56cc8a1a5e264a8e e1df5202e879bce09845ac62bae30206e1edfb80 Bisecting: 6728 revisions left to test after this (roughly 13 steps) [c4101e55974cc7d835fbd2d8e01553a3f61e9e75] Merge tag 'soc-dt-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc determine whether the revision contains the guilty commit revision e1df5202e879bce09845ac62bae30206e1edfb80 crashed and is reachable testing commit c4101e55974cc7d835fbd2d8e01553a3f61e9e75 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6fe651e14ff02596095e77314f54c7257be1dffd90de294a067a503cbec7d7ec all runs: OK false negative chance: 0.000 # git bisect bad c4101e55974cc7d835fbd2d8e01553a3f61e9e75 Bisecting: 3467 revisions left to test after this (roughly 12 steps) [32720aca900b226653c843bb4e06b8125312f214] Merge tag 'fsnotify_for_v6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs determine whether the revision contains the guilty commit checking the merge base d3fa86b1a7b4cdc4367acacea16b72e0a200b3d7 no existing result, test the revision testing commit d3fa86b1a7b4cdc4367acacea16b72e0a200b3d7 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 000a7a5376f0abf0f32fbefbcddef2cf6543c7404797a88c8e0d77f07a4959f7 all runs: crashed: kernel BUG in prog_array_map_poke_run representative crash: kernel BUG in prog_array_map_poke_run, types: [BUG] testing commit 32720aca900b226653c843bb4e06b8125312f214 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ab43ac1d4f290f3ccfa4390bd02b9cd92c715988a246e292c2aa8dfccb7b072b all runs: OK false negative chance: 0.000 # git bisect bad 32720aca900b226653c843bb4e06b8125312f214 Bisecting: 1730 revisions left to test after this (roughly 11 steps) [95c8a35f1c017327eab3b6a2ff5c04255737c856] Merge tag 'mm-hotfixes-stable-2024-01-05-11-35' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm determine whether the revision contains the guilty commit revision d3fa86b1a7b4cdc4367acacea16b72e0a200b3d7 crashed and is reachable testing commit 95c8a35f1c017327eab3b6a2ff5c04255737c856 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f4401d775fd3c342ebe233b9ec56b1fe7bfaac272030c66de03784dc0122a8b2 all runs: OK false negative chance: 0.000 # git bisect bad 95c8a35f1c017327eab3b6a2ff5c04255737c856 Bisecting: 864 revisions left to test after this (roughly 10 steps) [b10a3ccaf6e39f6290ca29d7c24604082eacaea0] Merge tag 'loongarch-fixes-6.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson determine whether the revision contains the guilty commit revision d3fa86b1a7b4cdc4367acacea16b72e0a200b3d7 crashed and is reachable testing commit b10a3ccaf6e39f6290ca29d7c24604082eacaea0 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2ebe682f5cf8db7add3d7dd0c0555e4f1a6930cf5ff575721d0aad9f3d4bc6b1 all runs: OK false negative chance: 0.000 # git bisect bad b10a3ccaf6e39f6290ca29d7c24604082eacaea0 Bisecting: 435 revisions left to test after this (roughly 9 steps) [06a3c59f9cf4f550facf16a2f1e48ba364deb293] Merge tag 'sound-6.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound determine whether the revision contains the guilty commit revision d3fa86b1a7b4cdc4367acacea16b72e0a200b3d7 crashed and is reachable testing commit 06a3c59f9cf4f550facf16a2f1e48ba364deb293 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bf33a7a04b7145aa1a91fd6466ce6cae5d720d35dfc2e23ac04a29f2ecb5a12c all runs: crashed: kernel BUG in prog_array_map_poke_run representative crash: kernel BUG in prog_array_map_poke_run, types: [BUG] # git bisect good 06a3c59f9cf4f550facf16a2f1e48ba364deb293 Bisecting: 231 revisions left to test after this (roughly 8 steps) [17894c2a7aa60a6da7495cc8500a53523e64c4b1] Merge tag 'trace-v6.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace determine whether the revision contains the guilty commit revision 06a3c59f9cf4f550facf16a2f1e48ba364deb293 crashed and is reachable testing commit 17894c2a7aa60a6da7495cc8500a53523e64c4b1 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f80fa6e8fa78399a4d20f9b4c8b6ba800249a70993d85abab26422e48e6f38dc all runs: OK false negative chance: 0.000 # git bisect bad 17894c2a7aa60a6da7495cc8500a53523e64c4b1 Bisecting: 112 revisions left to test after this (roughly 7 steps) [9ace34a8e446c1a566f3b0a3e0c4c483987e39a6] Merge tag 'cgroup-for-6.7-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup determine whether the revision contains the guilty commit revision d3fa86b1a7b4cdc4367acacea16b72e0a200b3d7 crashed and is reachable testing commit 9ace34a8e446c1a566f3b0a3e0c4c483987e39a6 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8be048c59dab71aaf64293ab9e5cd18fa44df28e04838f2c90297c9e0e385043 all runs: crashed: kernel BUG in prog_array_map_poke_run representative crash: kernel BUG in prog_array_map_poke_run, types: [BUG] # git bisect good 9ace34a8e446c1a566f3b0a3e0c4c483987e39a6 Bisecting: 57 revisions left to test after this (roughly 6 steps) [c85e5594b7456d55103fa1f1bde47cd4e002e7fb] 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 d3fa86b1a7b4cdc4367acacea16b72e0a200b3d7 crashed and is reachable testing commit c85e5594b7456d55103fa1f1bde47cd4e002e7fb gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9f37eceee92d7852de7a3f7cb2365cc8d772dea15eaf3ccb02f34a21e4d0db9d all runs: OK false negative chance: 0.000 # git bisect bad c85e5594b7456d55103fa1f1bde47cd4e002e7fb Bisecting: 27 revisions left to test after this (roughly 5 steps) [84757d0839451b20b11e993128f0a77393ca50c1] net: hns: fix wrong head when modify the tx feature when sending packets determine whether the revision contains the guilty commit revision d3fa86b1a7b4cdc4367acacea16b72e0a200b3d7 crashed and is reachable testing commit 84757d0839451b20b11e993128f0a77393ca50c1 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8129b63047a811c7e47ce0f4eb59161c584a8491f908f3ae88738e5c17e673c5 all runs: crashed: kernel BUG in prog_array_map_poke_run representative crash: kernel BUG in prog_array_map_poke_run, types: [BUG] # git bisect good 84757d0839451b20b11e993128f0a77393ca50c1 Bisecting: 13 revisions left to test after this (roughly 4 steps) [2078a341f5f609d55667c2dc6337f90d8f322b8f] Merge branch 'octeontx2-af-miscellaneous-fixes' determine whether the revision contains the guilty commit revision d3fa86b1a7b4cdc4367acacea16b72e0a200b3d7 crashed and is reachable testing commit 2078a341f5f609d55667c2dc6337f90d8f322b8f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c59e77747c9ddc6dde6a56e13781ae02a710010d4a8ce68284278940d0d71406 all runs: crashed: kernel BUG in prog_array_map_poke_run representative crash: kernel BUG in prog_array_map_poke_run, types: [BUG] # git bisect good 2078a341f5f609d55667c2dc6337f90d8f322b8f Bisecting: 5 revisions left to test after this (roughly 3 steps) [803a809d3d85cf06a04770fb04b585364d2d26dc] Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue determine whether the revision contains the guilty commit revision 84757d0839451b20b11e993128f0a77393ca50c1 crashed and is reachable testing commit 803a809d3d85cf06a04770fb04b585364d2d26dc gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8b1fd2ee9d4e79e78c30ac36a418eeb898c643582819ba21de8ff6e3785265d4 all runs: crashed: kernel BUG in prog_array_map_poke_run representative crash: kernel BUG in prog_array_map_poke_run, types: [BUG] # git bisect good 803a809d3d85cf06a04770fb04b585364d2d26dc Bisecting: 2 revisions left to test after this (roughly 2 steps) [4b7de801606e504e69689df71475d27e35336fb3] bpf: Fix prog_array_map_poke_run map poke update determine whether the revision contains the guilty commit revision d3fa86b1a7b4cdc4367acacea16b72e0a200b3d7 crashed and is reachable testing commit 4b7de801606e504e69689df71475d27e35336fb3 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7e219dde31512e19ec3284c61bba8b9a9497a279bb9d27b9fd5f7e106ad14c68 all runs: OK false negative chance: 0.000 # git bisect bad 4b7de801606e504e69689df71475d27e35336fb3 Bisecting: 0 revisions left to test after this (roughly 1 step) [e4d008d49a7135214e0ee70537405b6a069e3a3f] xsk: Skip polling event check for unbound socket determine whether the revision contains the guilty commit revision d3fa86b1a7b4cdc4367acacea16b72e0a200b3d7 crashed and is reachable testing commit e4d008d49a7135214e0ee70537405b6a069e3a3f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bd5f03dd2f3f86e62ba367365c85d33a61847d50fd87a87d3c9b1b8cd74ad04e all runs: crashed: kernel BUG in prog_array_map_poke_run representative crash: kernel BUG in prog_array_map_poke_run, types: [BUG] # git bisect good e4d008d49a7135214e0ee70537405b6a069e3a3f 4b7de801606e504e69689df71475d27e35336fb3 is the first bad commit commit 4b7de801606e504e69689df71475d27e35336fb3 Author: Jiri Olsa Date: Wed Dec 6 09:30:40 2023 +0100 bpf: Fix prog_array_map_poke_run map poke update Lee pointed out issue found by syscaller [0] hitting BUG in prog array map poke update in prog_array_map_poke_run function due to error value returned from bpf_arch_text_poke function. There's race window where bpf_arch_text_poke can fail due to missing bpf program kallsym symbols, which is accounted for with check for -EINVAL in that BUG_ON call. The problem is that in such case we won't update the tail call jump and cause imbalance for the next tail call update check which will fail with -EBUSY in bpf_arch_text_poke. I'm hitting following race during the program load: CPU 0 CPU 1 bpf_prog_load bpf_check do_misc_fixups prog_array_map_poke_track map_update_elem bpf_fd_array_map_update_elem prog_array_map_poke_run bpf_arch_text_poke returns -EINVAL bpf_prog_kallsyms_add After bpf_arch_text_poke (CPU 1) fails to update the tail call jump, the next poke update fails on expected jump instruction check in bpf_arch_text_poke with -EBUSY and triggers the BUG_ON in prog_array_map_poke_run. Similar race exists on the program unload. Fixing this by moving the update to bpf_arch_poke_desc_update function which makes sure we call __bpf_arch_text_poke that skips the bpf address check. Each architecture has slightly different approach wrt looking up bpf address in bpf_arch_text_poke, so instead of splitting the function or adding new 'checkip' argument in previous version, it seems best to move the whole map_poke_run update as arch specific code. [0] https://syzkaller.appspot.com/bug?extid=97a4fe20470e9bc30810 Fixes: ebf7d1f508a7 ("bpf, x64: rework pro/epilogue and tailcall handling in JIT") Reported-by: syzbot+97a4fe20470e9bc30810@syzkaller.appspotmail.com Signed-off-by: Jiri Olsa Signed-off-by: Daniel Borkmann Acked-by: Yonghong Song Cc: Lee Jones Cc: Maciej Fijalkowski Link: https://lore.kernel.org/bpf/20231206083041.1306660-2-jolsa@kernel.org arch/x86/net/bpf_jit_comp.c | 46 +++++++++++++++++++++++++++++++++++ include/linux/bpf.h | 3 +++ kernel/bpf/arraymap.c | 58 ++++++++------------------------------------- 3 files changed, 59 insertions(+), 48 deletions(-) accumulated error probability: 0.00 culprit signature: 7e219dde31512e19ec3284c61bba8b9a9497a279bb9d27b9fd5f7e106ad14c68 parent signature: bd5f03dd2f3f86e62ba367365c85d33a61847d50fd87a87d3c9b1b8cd74ad04e revisions tested: 22, total time: 10h28m25.309378759s (build: 5h55m8.572977569s, test: 3h3m20.189970607s) first good commit: 4b7de801606e504e69689df71475d27e35336fb3 bpf: Fix prog_array_map_poke_run map poke update recipients (to): ["daniel@iogearbox.net" "jolsa@kernel.org" "yonghong.song@linux.dev"] recipients (cc): []