ci2 starts bisection 2024-07-18 14:37:54.548149784 +0000 UTC m=+6962.749532418 bisecting fixing commit since 284087d4f7d57502b5a41b423b771f16cc6d157a building syzkaller on c2e0726105cc811a456d900c62443159acc29c32 ensuring issue is reproducible on original commit 284087d4f7d57502b5a41b423b771f16cc6d157a testing commit 284087d4f7d57502b5a41b423b771f16cc6d157a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 106463a7cf52a2aff50da75a8b2e579bb82b9870ab561d850ca7f10b14698f0d run #0: basic kernel testing failed: failed to run command in VM: broken console: Permission denied (publickey) run #1: failed: failed to run command in VM: broken console: Permission denied (publickey) run #2: crashed: possible deadlock in console_unlock run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: possible deadlock in console_unlock run #5: crashed: possible deadlock in console_unlock run #6: crashed: WARNING in bpf_probe_read_user run #7: crashed: possible deadlock in console_unlock run #8: crashed: WARNING in bpf_probe_read_user run #9: crashed: WARNING in bpf_probe_read_user run #10: crashed: WARNING in bpf_probe_read_user run #11: crashed: WARNING in NUM run #12: crashed: possible deadlock in console_unlock run #13: crashed: WARNING in bpf_probe_read_user run #14: crashed: WARNING in NUM run #15: crashed: possible deadlock in console_unlock run #16: crashed: possible deadlock in console_unlock run #17: crashed: WARNING in bpf_probe_read_user run #18: crashed: WARNING in bpf_probe_read_user run #19: crashed: WARNING in bpf_probe_read_user representative crash: WARNING in bpf_probe_read_user, types: [WARNING LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed testing commit 284087d4f7d57502b5a41b423b771f16cc6d157a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 06b685960b97860296fc66013419333a6da2131a406efa72cf0be0fde41a9118 all runs: OK false negative chance: 0.000 kconfig minimization: base=3703 full=7269 leaves diff=1984 split chunks (needed=false): <1984> split chunk #0 of len 1984 into 5 parts testing without sub-chunk 1/5 testing commit 284087d4f7d57502b5a41b423b771f16cc6d157a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c3e073f6b9e00009b82655934711f15d4515f139228b19905bbb3a43966b7db0 run #0: crashed: possible deadlock in console_unlock run #1: crashed: possible deadlock in console_unlock run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: WARNING in NUM run #4: crashed: possible deadlock in console_unlock run #5: crashed: WARNING in bpf_probe_read_user run #6: crashed: possible deadlock in console_unlock run #7: crashed: WARNING in NUM run #8: crashed: WARNING in bpf_probe_read_user run #9: crashed: possible deadlock in console_unlock representative crash: possible deadlock in console_unlock, types: [LOCKDEP WARNING] the chunk can be dropped testing without sub-chunk 2/5 testing commit 284087d4f7d57502b5a41b423b771f16cc6d157a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: aeeef7b2a8a0fd10cce2a898a61cb7e25046ed58b97579dd0b541ae143bc7ca9 all runs: crashed: WARNING in bpf_probe_read_user representative crash: WARNING in bpf_probe_read_user, types: [WARNING] the chunk can be dropped testing without sub-chunk 3/5 testing commit 284087d4f7d57502b5a41b423b771f16cc6d157a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 57eca253b7c4a236c3920cd5e84449135f4cd4a6cf17d9f1a92df16541c773c9 run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: WARNING in bpf_probe_read_user run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: WARNING in bpf_probe_read_user, types: [WARNING] testing without sub-chunk 4/5 testing commit 284087d4f7d57502b5a41b423b771f16cc6d157a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a05cc62bab9c3aa2f998dcb842a45bc15b7569c1a3987faf3b2acbeccb25dfb7 all runs: crashed: WARNING in bpf_probe_read_user representative crash: WARNING in bpf_probe_read_user, types: [WARNING] the chunk can be dropped testing without sub-chunk 5/5 testing commit 284087d4f7d57502b5a41b423b771f16cc6d157a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9ba63d2558d3da91ac7d6c8c284de818a11787dd2872d860346cba66488b816e all runs: OK false negative chance: 0.000 minimized to 793 configs; suspects: [ARCH_ENABLE_MEMORY_HOTREMOVE ATM AX25 BCMA BLK_DEV_ZONED BPF_SYSCALL BRIDGE BRIDGE_NETFILTER CAN CARDBUS CFG80211 CFG80211_WEXT CHECKPOINT_RESTORE CMA CONTIG_ALLOC CPU_MITIGATIONS CRYPTO_842 CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_LZO CRYPTO_ZSTD DVB_CORE EXTCON FB FRONTSWAP FSCACHE GPIOLIB HAMRADIO HID_ZEROPLUS HSR I2C_MUX IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_USER_ACCESS INPUT_JOYSTICK INPUT_MOUSE IP6_NF_RAW IPV6_MULTIPLE_TABLES IP_NF_RAW IP_SET IP_VS IRQ_REMAP IR_STREAMZAP IR_TTUSBIR ISDN ISDN_CAPI_MIDDLEWARE JFFS2_CMODE_PRIORITY JFFS2_COMPRESSION_OPTIONS JFFS2_FS JFFS2_FS_POSIX_ACL JFFS2_FS_SECURITY JFFS2_FS_WRITEBUFFER JFFS2_FS_XATTR JFFS2_LZO JFFS2_RTIME JFFS2_RUBIN JFFS2_SUMMARY JFFS2_ZLIB JFS_DEBUG JFS_FS JFS_POSIX_ACL JFS_SECURITY JOYSTICK_IFORCE JOYSTICK_IFORCE_USB JOYSTICK_XPAD JOYSTICK_XPAD_FF JOYSTICK_XPAD_LEDS KARMA_PARTITION KCOV KCOV_ENABLE_COMPARISONS KCOV_INSTRUMENT_ALL KEYS_REQUEST_CACHE KEY_DH_OPERATIONS KEY_NOTIFICATIONS KSM KVM KVM_AMD KVM_ASYNC_PF KVM_COMPAT KVM_GENERIC_DIRTYLOG_READ_PROTECT KVM_INTEL KVM_MMIO KVM_VFIO KVM_XEN KVM_XFER_TO_GUEST_WORK L2TP L2TP_ETH L2TP_IP L2TP_V3 LAPB LAPBETHER LDM_PARTITION LEDS_TRIGGER_AUDIO LEGACY_PTYS LIBNVDIMM LINEAR_RANGES LLC LLC2 LOGIG940_FF LOGIRUMBLEPAD2_FF LOGO LOGO_LINUX_MONO LOGO_LINUX_VGA16 LPC_ICH LWTUNNEL 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NETFILTER_XT_MATCH_CONNBYTES NETFILTER_XT_MATCH_CONNLABEL NETFILTER_XT_MATCH_CONNLIMIT NETFILTER_XT_MATCH_CONNMARK NETFILTER_XT_MATCH_CPU NETFILTER_XT_MATCH_DCCP NETFILTER_XT_MATCH_DEVGROUP NETFILTER_XT_MATCH_DSCP NETFILTER_XT_MATCH_ECN NETFILTER_XT_MATCH_ESP NETFILTER_XT_MATCH_HASHLIMIT NETFILTER_XT_MATCH_HELPER NETFILTER_XT_MATCH_HL NETFILTER_XT_MATCH_IPCOMP NETFILTER_XT_MATCH_IPRANGE NETFILTER_XT_MATCH_IPVS NETFILTER_XT_MATCH_L2TP NETFILTER_XT_MATCH_LENGTH NETFILTER_XT_MATCH_LIMIT NETFILTER_XT_MATCH_MAC NETFILTER_XT_MATCH_MARK NETFILTER_XT_MATCH_MULTIPORT NETFILTER_XT_MATCH_NFACCT NETFILTER_XT_MATCH_OSF NETFILTER_XT_MATCH_OWNER NETFILTER_XT_MATCH_PHYSDEV NETFILTER_XT_MATCH_PKTTYPE NETFILTER_XT_MATCH_QUOTA NETFILTER_XT_MATCH_RATEEST NETFILTER_XT_MATCH_REALM NETFILTER_XT_MATCH_RECENT NETFILTER_XT_MATCH_SCTP NETFILTER_XT_MATCH_SOCKET NETFILTER_XT_MATCH_STATISTIC NETFILTER_XT_MATCH_STRING NETFILTER_XT_MATCH_TCPMSS NETFILTER_XT_MATCH_TIME NETFILTER_XT_MATCH_U32 NETFILTER_XT_SET 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USB_RTL8153_ECM USB_S2255 USB_SERIAL USB_SERIAL_AIRCABLE USB_SERIAL_ARK3116 USB_SERIAL_BELKIN USB_SERIAL_CH341 USB_SERIAL_CONSOLE USB_SERIAL_CP210X USB_SERIAL_CYBERJACK USB_SERIAL_CYPRESS_M8 USB_SERIAL_DEBUG USB_SERIAL_DIGI_ACCELEPORT USB_SERIAL_EDGEPORT USB_SERIAL_EDGEPORT_TI USB_SERIAL_EMPEG USB_SERIAL_F81232 USB_SERIAL_F8153X USB_SERIAL_FTDI_SIO USB_SERIAL_GARMIN USB_SERIAL_GENERIC USB_SERIAL_IPAQ USB_SERIAL_IPW USB_SERIAL_IR USB_SERIAL_IUU USB_SERIAL_KEYSPAN USB_SERIAL_KEYSPAN_PDA USB_SERIAL_KLSI USB_SERIAL_KOBIL_SCT USB_SERIAL_MCT_U232 USB_SERIAL_METRO USB_SERIAL_MOS7715_PARPORT USB_SERIAL_MOS7720 USB_SERIAL_MOS7840 USB_SERIAL_MXUPORT USB_SERIAL_NAVMAN USB_SERIAL_OMNINET USB_SERIAL_OPTICON USB_SERIAL_OPTION USB_SERIAL_OTI6858 USB_SERIAL_PL2303 USB_SERIAL_QCAUX USB_SERIAL_QT2 USB_SERIAL_QUALCOMM USB_SERIAL_SAFE USB_SERIAL_SIERRAWIRELESS USB_SERIAL_SIMPLE USB_SERIAL_SPCP8X5 USB_SERIAL_SSU100 USB_SERIAL_SYMBOL USB_SERIAL_TI USB_SERIAL_UPD78F0730 USB_SERIAL_VISOR USB_SERIAL_WHITEHEAT USB_SERIAL_WISHBONE USB_SERIAL_WWAN USB_SERIAL_XR USB_SERIAL_XSENS_MT USB_SEVSEG USB_SI470X USB_SI4713 USB_SIERRA_NET USB_SISUSBVGA USB_SL811_CS USB_SL811_HCD USB_SL811_HCD_ISO USB_SNP_CORE USB_SPEEDTOUCH USB_STKWEBCAM USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_ENE_UB6250 USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_STV06XX USB_TEST USB_TMC USB_TRANCEVIBRATOR USB_U132_HCD USB_UAS USB_UEAGLEATM USB_ULPI_BUS USB_USBNET USB_USS720 USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_VIDEO_CLASS USB_VIDEO_CLASS_INPUT_EVDEV USB_VL600 USB_WDM USB_XHCI_DBGCAP USB_XHCI_PLATFORM USB_XUSBATM USB_YUREX USB_ZR364XX USERFAULTFD USERIO USERMODE_DRIVER USER_RETURN_NOTIFIER U_SERIAL_CONSOLE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VETH VFIO VFIO_IOMMU_TYPE1 VFIO_PCI VFIO_PCI_CORE VFIO_PCI_INTX VFIO_PCI_MMAP VFIO_VIRQFD VGASTATE VHOST VHOST_CROSS_ENDIAN_LEGACY VHOST_IOTLB VHOST_NET VHOST_RING VHOST_VDPA VHOST_VSOCK VIDEOBUF2_CORE VIDEOBUF2_DMA_CONTIG VIDEOBUF2_DMA_SG VIDEOBUF2_MEMOPS VIDEOBUF2_V4L2 VIDEOBUF2_VMALLOC VIDEOBUF_GEN VIDEOBUF_VMALLOC VIDEO_AU0828 VIDEO_AU0828_RC VIDEO_AU0828_V4L2 VIDEO_CPIA2 VIDEO_CS53L32A VIDEO_CX231XX VIDEO_CX231XX_ALSA VIDEO_CX231XX_DVB VIDEO_CX231XX_RC VIDEO_CX2341X VIDEO_CX25840 VIDEO_DEV VIDEO_EM28XX VIDEO_EM28XX_ALSA VIDEO_EM28XX_DVB VIDEO_EM28XX_RC VIDEO_EM28XX_V4L2 VIDEO_GO7007 VIDEO_GO7007_LOADER VIDEO_GO7007_USB VIDEO_GO7007_USB_S2250_BOARD VIDEO_HDPVR VIDEO_MSP3400 VIDEO_PVRUSB2 VIDEO_PVRUSB2_DVB VIDEO_PVRUSB2_SYSFS VIDEO_SAA711X VIDEO_STK1160 VIDEO_STK1160_COMMON VIDEO_TM6000 VIDEO_TM6000_ALSA VIDEO_TM6000_DVB VIDEO_TUNER VIDEO_TVEEPROM VIDEO_USBTV VIDEO_V4L2 VIDEO_V4L2_I2C VIDEO_V4L2_SUBDEV_API VIDEO_V4L2_TPG VIDEO_VICODEC VIDEO_VIM2M VIDEO_VIMC VIDEO_VIVID VIDEO_VIVID_CEC VIDEO_WM8775 VIPERBOARD_ADC VIRTIO_BALLOON VIRTIO_DMA_SHARED_BUFFER VIRTIO_MEM VIRTIO_MMIO VIRTIO_MMIO_CMDLINE_DEVICES VIRTIO_PMEM VIRTIO_VDPA VIRTIO_VSOCKETS VIRTIO_VSOCKETS_COMMON VIRT_WIFI VLAN_8021Q VLAN_8021Q_GVRP VLAN_8021Q_MVRP VMAP_PFN VMWARE_VMCI VMXNET3 VP_VDPA VSOCKETS VSOCKETS_DIAG VSOCKETS_LOOPBACK VSOCKMON VT_HW_CONSOLE_BINDING VXFS_FS WAN WANT_DEV_COREDUMP WATCH_QUEUE WEXT_CORE WEXT_PRIV WEXT_PROC WIREGUARD WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ADMTEK WWAN X25 X86_SGX X86_X2APIC X86_X32 XARRAY_MULTI XDP_SOCKETS XDP_SOCKETS_DIAG XFRM_ESPINTCP XFRM_INTERFACE XFRM_IPCOMP XFRM_MIGRATE XFRM_OFFLOAD XFRM_STATISTICS XFRM_SUB_POLICY XFRM_USER_COMPAT XFS_FS XFS_POSIX_ACL XFS_QUOTA XFS_RT XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZBUD ZEROPLUS_FF ZONEFS_FS ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZBUD] determining the merge base between 284087d4f7d57502b5a41b423b771f16cc6d157a and b1bc554e009e3aeed7e4cfd2e717c7a34a98c683 8bb7eca972ad531c9b149c0a51ab43a417385813/Linux 5.15 is a merge base, check if it has the bug testing commit 8bb7eca972ad531c9b149c0a51ab43a417385813 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3c0065aa434a0e175a737a8587af7d2aa108f9baca1b6f9934fc4b83cc4cc4cd all runs: crashed: WARNING in bpf_probe_read_user representative crash: WARNING in bpf_probe_read_user, types: [WARNING] testing current HEAD b1bc554e009e3aeed7e4cfd2e717c7a34a98c683 testing commit b1bc554e009e3aeed7e4cfd2e717c7a34a98c683 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1c919a81dbe9ce52f16f1b9a49a7e528ebaf6c8125100116162f69b397f50fc0 all runs: OK false negative chance: 0.000 # git bisect start b1bc554e009e3aeed7e4cfd2e717c7a34a98c683 8bb7eca972ad531c9b149c0a51ab43a417385813 Bisecting: 121113 revisions left to test after this (roughly 17 steps) [8395d932d24a9b4c01ab33ed0b4b2de06328afc2] Merge tag 'devicetree-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 8395d932d24a9b4c01ab33ed0b4b2de06328afc2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 73b5355710975d210bbae6854c1b1b64ca1d4eaa68f93509138b009b63b799d9 run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: WARNING in bpf_probe_read_user run #2: crashed: inconsistent lock state in valid_state run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: inconsistent lock state in valid_state run #5: crashed: WARNING in bpf_probe_read_user run #6: crashed: WARNING in bpf_probe_read_user run #7: crashed: WARNING in bpf_probe_read_user run #8: crashed: WARNING in bpf_probe_read_user run #9: crashed: WARNING in bpf_probe_read_user run #10: crashed: WARNING in bpf_probe_read_user run #11: crashed: WARNING in bpf_probe_read_user run #12: crashed: WARNING in bpf_probe_read_user run #13: crashed: inconsistent lock state in valid_state run #14: crashed: WARNING in bpf_probe_read_user run #15: crashed: WARNING in bpf_probe_read_user run #16: crashed: WARNING in bpf_probe_read_user run #17: crashed: WARNING in bpf_probe_read_user run #18: crashed: WARNING in bpf_probe_read_user run #19: crashed: WARNING in bpf_probe_read_user representative crash: WARNING in bpf_probe_read_user, types: [WARNING] # git bisect good 8395d932d24a9b4c01ab33ed0b4b2de06328afc2 Bisecting: 60634 revisions left to test after this (roughly 16 steps) [deefd5024f0772cf56052ace9a8c347dc70bcaf3] Merge tag 'vfio-v6.7-rc1' of https://github.com/awilliam/linux-vfio determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit deefd5024f0772cf56052ace9a8c347dc70bcaf3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8c0b5fe9105b86c737cc268ef3c5ab7ac91dcf4d3ec56d204ce86159a6798bbd all runs: OK false negative chance: 0.000 # git bisect bad deefd5024f0772cf56052ace9a8c347dc70bcaf3 Bisecting: 30233 revisions left to test after this (roughly 15 steps) [533925cb760431cb496a8c965cfd765a1a21d37e] Merge tag 'riscv-for-linus-6.5-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 533925cb760431cb496a8c965cfd765a1a21d37e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b5ac8140f2ce144fa5b6777ef9e830fc2036f7c0f6a2b7ae2f268cb56abb392a all runs: OK false negative chance: 0.000 # git bisect bad 533925cb760431cb496a8c965cfd765a1a21d37e Bisecting: 15213 revisions left to test after this (roughly 14 steps) [556eb8b79190151506187bf0b16dda423c34d9a8] Merge tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 556eb8b79190151506187bf0b16dda423c34d9a8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8ad4c2269ea4ef32d8f48cabbb626ad1c4c38687daeae92889efd1e5d84d9866 all runs: OK false negative chance: 0.000 # git bisect bad 556eb8b79190151506187bf0b16dda423c34d9a8 Bisecting: 7513 revisions left to test after this (roughly 13 steps) [9610a8dc0aaaf146630ff5566b5d8804fcd22d15] Merge branch 'tsnep-xdp-socket-zero-copy-support' determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 9610a8dc0aaaf146630ff5566b5d8804fcd22d15 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e526c32836ab7e2ede7c37d2572fa906cbd12a469c53c24adab805f790950a50 all runs: OK false negative chance: 0.000 # git bisect bad 9610a8dc0aaaf146630ff5566b5d8804fcd22d15 Bisecting: 3759 revisions left to test after this (roughly 12 steps) [ba9c77919045943af677c03f04c778a1c16ae680] Merge branch 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit ba9c77919045943af677c03f04c778a1c16ae680 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8a2bd6b853e86a20f8090957d86aaeed8960a73d9a3ced036cf588097e3ff383 run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: WARNING in bpf_probe_read_user run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: WARNING in bpf_probe_read_user run #5: crashed: inconsistent lock state in valid_state run #6: crashed: WARNING in bpf_probe_read_user run #7: crashed: WARNING in bpf_probe_read_user run #8: crashed: inconsistent lock state in valid_state run #9: crashed: WARNING in bpf_probe_read_user run #10: crashed: WARNING in bpf_probe_read_user run #11: crashed: WARNING in bpf_probe_read_user run #12: crashed: WARNING in bpf_probe_read_user run #13: crashed: WARNING in bpf_probe_read_user run #14: crashed: WARNING in bpf_probe_read_user run #15: crashed: WARNING in bpf_probe_read_user run #16: crashed: WARNING in bpf_probe_read_user run #17: crashed: WARNING in bpf_probe_read_user run #18: crashed: WARNING in bpf_probe_read_user run #19: crashed: WARNING in bpf_probe_read_user representative crash: WARNING in bpf_probe_read_user, types: [WARNING] # git bisect good ba9c77919045943af677c03f04c778a1c16ae680 Bisecting: 1897 revisions left to test after this (roughly 11 steps) [2acbeb5db2b45ebf22ef1197490f07d3813d4e25] Merge tag 'linux-can-next-for-6.4-20230404-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 2acbeb5db2b45ebf22ef1197490f07d3813d4e25 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: df43df44c4d5c877b64bf2782dc873fa85ef593ca58277bd8e8097320a6fb066 run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: WARNING in bpf_probe_read_user run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: WARNING in bpf_probe_read_user run #5: crashed: WARNING in bpf_probe_read_user run #6: crashed: WARNING in bpf_probe_read_user run #7: crashed: WARNING in bpf_probe_read_user run #8: crashed: WARNING in bpf_probe_read_user run #9: crashed: WARNING in bpf_probe_read_user run #10: crashed: WARNING in bpf_probe_read_user run #11: crashed: WARNING in bpf_probe_read_user run #12: crashed: WARNING in bpf_probe_read_user run #13: crashed: WARNING in bpf_probe_read_user run #14: crashed: WARNING in bpf_probe_read_user run #15: crashed: inconsistent lock state in valid_state run #16: crashed: inconsistent lock state in valid_state run #17: crashed: WARNING in bpf_probe_read_user run #18: crashed: WARNING in bpf_probe_read_user run #19: crashed: inconsistent lock state in valid_state representative crash: WARNING in bpf_probe_read_user, types: [WARNING] # git bisect good 2acbeb5db2b45ebf22ef1197490f07d3813d4e25 Bisecting: 948 revisions left to test after this (roughly 10 steps) [30bbfe3236b01b81ed5f4a91cd9d87a236b182e3] selftests/bpf: add missing __weak kfunc log fixup test determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 30bbfe3236b01b81ed5f4a91cd9d87a236b182e3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 69a0ad9c3280987f2d77ab9b7ab049afad7d46ba849d1b2c5e36e2e3b72069cd all runs: OK false negative chance: 0.000 # git bisect bad 30bbfe3236b01b81ed5f4a91cd9d87a236b182e3 Bisecting: 460 revisions left to test after this (roughly 9 steps) [829cca4d1783088e43bace57a555044cc937c554] Merge tag 'net-6.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net determine whether the revision contains the guilty commit revision ba9c77919045943af677c03f04c778a1c16ae680 crashed and is reachable testing commit 829cca4d1783088e43bace57a555044cc937c554 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fed3e2b0a3287247aeb77f1745d36da4dd4568d6a8309f3581281a519239e102 run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: inconsistent lock state in valid_state run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: WARNING in bpf_probe_read_user run #5: crashed: WARNING in bpf_probe_read_user run #6: crashed: inconsistent lock state in valid_state run #7: crashed: WARNING in bpf_probe_read_user run #8: crashed: WARNING in bpf_probe_read_user run #9: crashed: inconsistent lock state in valid_state run #10: crashed: inconsistent lock state in valid_state run #11: crashed: WARNING in bpf_probe_read_user run #12: crashed: WARNING in bpf_probe_read_user run #13: crashed: WARNING in bpf_probe_read_user run #14: crashed: WARNING in bpf_probe_read_user run #15: crashed: WARNING in bpf_probe_read_user run #16: crashed: WARNING in bpf_probe_read_user run #17: crashed: WARNING in bpf_probe_read_user run #18: crashed: WARNING in bpf_probe_read_user run #19: crashed: WARNING in bpf_probe_read_user representative crash: WARNING in bpf_probe_read_user, types: [WARNING] # git bisect good 829cca4d1783088e43bace57a555044cc937c554 Bisecting: 230 revisions left to test after this (roughly 8 steps) [7483a7a70a12d7c00c9f80574d533b01689d39a7] bpftool: Support printing opcodes and source file references in CFG determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 7483a7a70a12d7c00c9f80574d533b01689d39a7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3096a025b3f2339389ed2ca078d13d9e6890bc3c9b5575f624c76ec4d9d2a2a4 run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: WARNING in bpf_probe_read_user run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: inconsistent lock state in valid_state run #5: crashed: WARNING in bpf_probe_read_user run #6: crashed: WARNING in bpf_probe_read_user run #7: crashed: WARNING in bpf_probe_read_user run #8: crashed: WARNING in bpf_probe_read_user run #9: crashed: WARNING in bpf_probe_read_user run #10: crashed: WARNING in bpf_probe_read_user run #11: crashed: WARNING in bpf_probe_read_user run #12: crashed: WARNING in bpf_probe_read_user run #13: crashed: WARNING in bpf_probe_read_user run #14: crashed: WARNING in bpf_probe_read_user run #15: crashed: WARNING in bpf_probe_read_user run #16: crashed: WARNING in bpf_probe_read_user run #17: crashed: WARNING in bpf_probe_read_user run #18: crashed: inconsistent lock state in valid_state run #19: crashed: WARNING in bpf_probe_read_user representative crash: WARNING in bpf_probe_read_user, types: [WARNING] # git bisect good 7483a7a70a12d7c00c9f80574d533b01689d39a7 Bisecting: 115 revisions left to test after this (roughly 7 steps) [bbda0f0d151cc05b830bb41ed65c4dc2b616c21e] Merge branch 'dsa-trace-events' determine whether the revision contains the guilty commit revision 8395d932d24a9b4c01ab33ed0b4b2de06328afc2 crashed and is reachable testing commit bbda0f0d151cc05b830bb41ed65c4dc2b616c21e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1229c1fd9ce9fb2eaebe8164a6280da847dfe43d9cae6167e5a40f995f40ea34 run #0: crashed: inconsistent lock state in valid_state run #1: crashed: WARNING in bpf_probe_read_user run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: inconsistent lock state in valid_state run #4: crashed: WARNING in bpf_probe_read_user run #5: crashed: WARNING in bpf_probe_read_user run #6: crashed: WARNING in bpf_probe_read_user run #7: crashed: WARNING in bpf_probe_read_user run #8: crashed: WARNING in bpf_probe_read_user run #9: crashed: WARNING in bpf_probe_read_user run #10: crashed: WARNING in bpf_probe_read_user run #11: crashed: inconsistent lock state in valid_state run #12: crashed: WARNING in bpf_probe_read_user run #13: crashed: WARNING in bpf_probe_read_user run #14: crashed: WARNING in bpf_probe_read_user run #15: crashed: WARNING in bpf_probe_read_user run #16: crashed: WARNING in bpf_probe_read_user run #17: crashed: WARNING in bpf_probe_read_user run #18: crashed: WARNING in bpf_probe_read_user run #19: crashed: WARNING in bpf_probe_read_user representative crash: WARNING in bpf_probe_read_user, types: [WARNING] # git bisect good bbda0f0d151cc05b830bb41ed65c4dc2b616c21e Bisecting: 57 revisions left to test after this (roughly 6 steps) [23acb14af1914010dd0aae1bbb7fab28bf518b8e] samples/bpf: Fix fout leak in hbm's run_bpf_prog determine whether the revision contains the guilty commit revision 7483a7a70a12d7c00c9f80574d533b01689d39a7 crashed and is reachable testing commit 23acb14af1914010dd0aae1bbb7fab28bf518b8e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 10db50214bc521d98c647855a2538b278e109e084f1eb6d56ed947bb6ba5e19d all runs: OK false negative chance: 0.000 # git bisect bad 23acb14af1914010dd0aae1bbb7fab28bf518b8e Bisecting: 28 revisions left to test after this (roughly 5 steps) [47a71c1f9af0a334c9dfa97633c41de4feda4287] bpf: Add log_true_size output field to return necessary log buffer size determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 47a71c1f9af0a334c9dfa97633c41de4feda4287 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b9fc1b565dc355b8bf2c708b8e9c3d152023eabf178465c41a0ccc9feaef57af run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: WARNING in bpf_probe_read_user run #2: crashed: inconsistent lock state in valid_state run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: WARNING in bpf_probe_read_user run #5: crashed: WARNING in bpf_probe_read_user run #6: crashed: WARNING in bpf_probe_read_user run #7: crashed: inconsistent lock state in valid_state run #8: crashed: WARNING in bpf_probe_read_user run #9: crashed: WARNING in bpf_probe_read_user run #10: crashed: inconsistent lock state in valid_state run #11: crashed: WARNING in bpf_probe_read_user run #12: crashed: WARNING in bpf_probe_read_user run #13: crashed: WARNING in bpf_probe_read_user run #14: crashed: WARNING in bpf_probe_read_user run #15: crashed: WARNING in bpf_probe_read_user run #16: crashed: WARNING in bpf_probe_read_user run #17: crashed: inconsistent lock state in valid_state run #18: crashed: WARNING in bpf_probe_read_user run #19: crashed: WARNING in bpf_probe_read_user representative crash: WARNING in bpf_probe_read_user, types: [WARNING] # git bisect good 47a71c1f9af0a334c9dfa97633c41de4feda4287 Bisecting: 14 revisions left to test after this (roughly 4 steps) [ec48599abee3a16fdc93c1c3c3e153a4f4d29420] bpf,docs: Remove references to bpf_cgroup_kptr_get() determine whether the revision contains the guilty commit revision 7483a7a70a12d7c00c9f80574d533b01689d39a7 crashed and is reachable testing commit ec48599abee3a16fdc93c1c3c3e153a4f4d29420 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ae2357e67ce6f95c185c914eb8009b53bf6fa9e22bc1a7f9ba254b91d875e055 run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: WARNING in bpf_probe_read_user run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: WARNING in bpf_probe_read_user run #5: crashed: WARNING in bpf_probe_read_user run #6: crashed: WARNING in bpf_probe_read_user run #7: crashed: WARNING in bpf_probe_read_user run #8: crashed: inconsistent lock state in valid_state run #9: crashed: WARNING in bpf_probe_read_user run #10: crashed: WARNING in bpf_probe_read_user run #11: crashed: WARNING in bpf_probe_read_user run #12: crashed: WARNING in bpf_probe_read_user run #13: crashed: WARNING in bpf_probe_read_user run #14: crashed: WARNING in bpf_probe_read_user run #15: crashed: inconsistent lock state in valid_state run #16: crashed: WARNING in bpf_probe_read_user run #17: crashed: WARNING in bpf_probe_read_user run #18: crashed: WARNING in bpf_probe_read_user run #19: crashed: inconsistent lock state in valid_state representative crash: WARNING in bpf_probe_read_user, types: [WARNING] # git bisect good ec48599abee3a16fdc93c1c3c3e153a4f4d29420 Bisecting: 7 revisions left to test after this (roughly 3 steps) [5a674611d116a5fc28c5429beea2b78c6e2933ef] selftests/bpf: Fix use of uninitialized op_name in log tests determine whether the revision contains the guilty commit revision 7483a7a70a12d7c00c9f80574d533b01689d39a7 crashed and is reachable testing commit 5a674611d116a5fc28c5429beea2b78c6e2933ef gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 43b0c59acf935c235b3c7a0c9a696eac0952ac45f225501401b78aea934691c5 all runs: OK false negative chance: 0.000 # git bisect bad 5a674611d116a5fc28c5429beea2b78c6e2933ef Bisecting: 3 revisions left to test after this (roughly 2 steps) [c50e96099edb134bf107fafc02715fbc4aa2277f] bpf,fou: Add bpf_skb_{set,get}_fou_encap kfuncs determine whether the revision contains the guilty commit revision 8395d932d24a9b4c01ab33ed0b4b2de06328afc2 crashed and is reachable testing commit c50e96099edb134bf107fafc02715fbc4aa2277f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cfd263cf00fc83ee16a59e5b8935eefa07a2d0c1ad1fb5113f468cb78be15416 run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: WARNING in bpf_probe_read_user run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: WARNING in bpf_probe_read_user run #5: crashed: WARNING in bpf_probe_read_user run #6: crashed: WARNING in bpf_probe_read_user run #7: crashed: WARNING in bpf_probe_read_user run #8: crashed: WARNING in bpf_probe_read_user run #9: crashed: WARNING in bpf_probe_read_user run #10: crashed: WARNING in bpf_probe_read_user run #11: crashed: WARNING in bpf_probe_read_user run #12: crashed: WARNING in bpf_probe_read_user run #13: crashed: WARNING in bpf_probe_read_user run #14: crashed: WARNING in bpf_probe_read_user run #15: crashed: inconsistent lock state in valid_state run #16: crashed: WARNING in bpf_probe_read_user run #17: crashed: WARNING in bpf_probe_read_user run #18: crashed: WARNING in bpf_probe_read_user run #19: crashed: inconsistent lock state in valid_state representative crash: WARNING in bpf_probe_read_user, types: [WARNING] # git bisect good c50e96099edb134bf107fafc02715fbc4aa2277f Bisecting: 1 revision left to test after this (roughly 1 step) [bbc73e6855b80144cd43d165696f1ff56d6192c9] Merge branch 'Add FOU support for externally controlled ipip devices' determine whether the revision contains the guilty commit revision ec48599abee3a16fdc93c1c3c3e153a4f4d29420 crashed and is reachable testing commit bbc73e6855b80144cd43d165696f1ff56d6192c9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 82afc8748fe357400740cdc01eba6d45bbadb0e3435b5631f660c67443548470 run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: WARNING in bpf_probe_read_user run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: WARNING in bpf_probe_read_user run #5: crashed: inconsistent lock state in valid_state run #6: crashed: WARNING in bpf_probe_read_user run #7: crashed: WARNING in bpf_probe_read_user run #8: crashed: WARNING in bpf_probe_read_user run #9: crashed: WARNING in bpf_probe_read_user run #10: crashed: WARNING in bpf_probe_read_user run #11: crashed: WARNING in bpf_probe_read_user run #12: crashed: WARNING in bpf_probe_read_user run #13: crashed: WARNING in bpf_probe_read_user run #14: crashed: WARNING in bpf_probe_read_user run #15: crashed: WARNING in bpf_probe_read_user run #16: crashed: WARNING in bpf_probe_read_user run #17: crashed: WARNING in bpf_probe_read_user run #18: crashed: WARNING in bpf_probe_read_user run #19: crashed: WARNING in bpf_probe_read_user representative crash: WARNING in bpf_probe_read_user, types: [WARNING] # git bisect good bbc73e6855b80144cd43d165696f1ff56d6192c9 Bisecting: 0 revisions left to test after this (roughly 0 steps) [d319f344561de23e810515d109c7278919bff7b0] mm: Fix copy_from_user_nofault(). determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit d319f344561de23e810515d109c7278919bff7b0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 27a35d4f438e6afd76c7554405b1ae8db923c85cec751e3b883339fec523be03 all runs: OK false negative chance: 0.000 # git bisect bad d319f344561de23e810515d109c7278919bff7b0 d319f344561de23e810515d109c7278919bff7b0 is the first bad commit commit d319f344561de23e810515d109c7278919bff7b0 Author: Alexei Starovoitov Date: Mon Apr 10 19:43:44 2023 +0200 mm: Fix copy_from_user_nofault(). There are several issues with copy_from_user_nofault(): - access_ok() is designed for user context only and for that reason it has WARN_ON_IN_IRQ() which triggers when bpf, kprobe, eprobe and perf on ppc are calling it from irq. - it's missing nmi_uaccess_okay() which is a nop on all architectures except x86 where it's required. The comment in arch/x86/mm/tlb.c explains the details why it's necessary. Calling copy_from_user_nofault() from bpf, [ke]probe without this check is not safe. - __copy_from_user_inatomic() under CONFIG_HARDENED_USERCOPY is calling check_object_size()->__check_object_size()->check_heap_object()->find_vmap_area()->spin_lock() which is not safe to do from bpf, [ke]probe and perf due to potential deadlock. Fix all three issues. At the end the copy_from_user_nofault() becomes equivalent to copy_from_user_nmi() from safety point of view with a difference in the return value. Reported-by: Hsin-Wei Hung Signed-off-by: Alexei Starovoitov Signed-off-by: Florian Lehner Tested-by: Hsin-Wei Hung Tested-by: Florian Lehner Link: https://lore.kernel.org/r/20230410174345.4376-2-dev@der-flo.net Signed-off-by: Alexei Starovoitov mm/maccess.c | 16 +++++++++++----- mm/usercopy.c | 2 +- 2 files changed, 12 insertions(+), 6 deletions(-) accumulated error probability: 0.00 culprit signature: 27a35d4f438e6afd76c7554405b1ae8db923c85cec751e3b883339fec523be03 parent signature: 82afc8748fe357400740cdc01eba6d45bbadb0e3435b5631f660c67443548470 reproducer is flaky (1.00 repro chance estimate) revisions tested: 27, total time: 6h41m46.211995037s (build: 2h53m25.365954528s, test: 3h38m44.164703013s) first good commit: d319f344561de23e810515d109c7278919bff7b0 mm: Fix copy_from_user_nofault(). recipients (to): ["ast@kernel.org" "dev@der-flo.net" "hsinweih@uci.edu"] recipients (cc): []