ci starts bisection 2025-01-24 03:35:00.105238907 +0000 UTC m=+139.393486116 bisecting cause commit starting from d1bf27c4e1768d4733143f26962a5c68ea8bd03c building syzkaller on 40f469132918c1122058244e85c86f7ec6d033aa ensuring issue is reproducible on original commit d1bf27c4e1768d4733143f26962a5c68ea8bd03c testing commit d1bf27c4e1768d4733143f26962a5c68ea8bd03c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 53e1706b91a3fe3af6a7d5da519e7e141b39d63a2639183169cf66871dc6bff6 all runs: crashed: WARNING in mptcp_pm_nl_set_flags representative crash: WARNING in mptcp_pm_nl_set_flags, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit d1bf27c4e1768d4733143f26962a5c68ea8bd03c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 974e19d198523c3f57eb57077ac047a90d616bfd1dc44125a9a3536e9dd73961 all runs: crashed: WARNING in mptcp_pm_nl_set_flags representative crash: WARNING in mptcp_pm_nl_set_flags, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed kconfig minimization: base=4045 full=8243 leaves diff=2124 split chunks (needed=false): <2124> split chunk #0 of len 2124 into 5 parts testing without sub-chunk 1/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit d1bf27c4e1768d4733143f26962a5c68ea8bd03c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a4bf7eeab19a604d5dbb2788e0b247eafbf872b74176a96a12519a7476e98f8b all runs: crashed: WARNING in mptcp_pm_nl_set_flags representative crash: WARNING in mptcp_pm_nl_set_flags, types: [WARNING] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit d1bf27c4e1768d4733143f26962a5c68ea8bd03c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building d1bf27c4e1768d4733143f26962a5c68ea8bd03c: drivers/gpu/drm/bridge/aux-bridge.c:116: undefined reference to `devm_drm_of_get_bridge' testing without sub-chunk 3/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit d1bf27c4e1768d4733143f26962a5c68ea8bd03c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 19db457f841a4e9012927df24e8f75482ffb38a90ecf3fe03f353854c5754d44 all runs: crashed: WARNING in mptcp_pm_nl_set_flags representative crash: WARNING in mptcp_pm_nl_set_flags, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit d1bf27c4e1768d4733143f26962a5c68ea8bd03c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 91b06b4a42d6138f96e5d3402571312f3f6b5328eb87bb6c3b6901477397ab89 all runs: crashed: WARNING in mptcp_pm_nl_set_flags representative crash: WARNING in mptcp_pm_nl_set_flags, types: [WARNING] 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 d1bf27c4e1768d4733143f26962a5c68ea8bd03c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 207861aad370b0ef33dc812ace84a8a333aa974c76c8d5d771d2d239441b23eb all runs: crashed: WARNING in mptcp_pm_nl_set_flags representative crash: WARNING in mptcp_pm_nl_set_flags, types: [WARNING] the chunk can be dropped minimized to 425 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI CHARGER_BQ24190 CMA COMMON_CLK DAX DLM DRM DRM_BRIDGE DRM_I915 DRM_I915_USERPTR DRM_KMS_HELPER DRM_MIPI_DSI DRM_PANEL DRM_PANEL_BRIDGE DRM_PANEL_EDP DRM_PANEL_ORIENTATION_QUIRKS DRM_SIMPLEDRM DRM_TTM DRM_TTM_HELPER DRM_UDL DRM_VGEM DRM_VIRTIO_GPU DRM_VIRTIO_GPU_KMS DRM_VKMS DRM_VMWGFX DUMMY DVB_AF9013 DVB_AF9033 DVB_AS102 DVB_AS102_FE DVB_B2C2_FLEXCOP DVB_B2C2_FLEXCOP_USB DVB_CORE DVB_DIB3000MB DVB_DIB3000MC DVB_EC100 DVB_GP8PSK_FE DVB_RTL2830 DVB_RTL2832 DVB_RTL2832_SDR DVB_TEST_DRIVERS DVB_TTUSB_BUDGET DVB_TTUSB_DEC DVB_USB DVB_USB_A800 DVB_USB_AF9005 DVB_USB_AF9005_REMOTE DVB_USB_AF9015 DVB_USB_AF9035 DVB_USB_ANYSEE DVB_USB_AU6610 DVB_USB_AZ6007 DVB_USB_AZ6027 DVB_USB_CE6230 DVB_USB_CINERGY_T2 DVB_USB_CXUSB DVB_USB_CXUSB_ANALOG DVB_USB_DIB0700 DVB_USB_DIB3000MC DVB_USB_DIBUSB_MB DVB_USB_DIBUSB_MC DVB_USB_DIGITV DVB_USB_DTT200U DVB_USB_DTV5100 DVB_USB_DVBSKY DVB_USB_DW2102 DVB_USB_EC168 DVB_USB_GL861 DVB_USB_GP8PSK DVB_USB_LME2510 DVB_USB_M920X DVB_USB_MXL111SF DVB_USB_NOVA_T_USB2 DVB_USB_OPERA1 DVB_USB_PCTV452E DVB_USB_RTL28XXU DVB_USB_TECHNISAT_USB2 DVB_USB_TTUSB2 DVB_USB_UMT_010 DVB_USB_V2 DVB_USB_VP702X DVB_USB_VP7045 DVB_USB_ZD1301 DVB_VIDTV DVB_ZL10353 ECRYPT_FS ECRYPT_FS_MESSAGING EDAC EEPROM_93CX6 EFS_FS ENCRYPTED_KEYS EQUALIZER EROFS_FS EROFS_FS_BACKED_BY_FILE EROFS_FS_POSIX_ACL EROFS_FS_SECURITY EROFS_FS_XATTR EROFS_FS_ZIP EVM EVM_ADD_XATTRS EVM_ATTR_FSUUID EXFAT_FS EXPORTFS_BLOCK_OPS EXT3_FS EXT3_FS_POSIX_ACL EXT3_FS_SECURITY EXTCON EXTCON_INTEL_CHT_WC EXTCON_PTN5150 EXTCON_USBC_TUSB320 F2FS_CHECK_FS F2FS_FAULT_INJECTION F2FS_FS F2FS_FS_COMPRESSION F2FS_FS_LZ4 F2FS_FS_LZ4HC F2FS_FS_LZO F2FS_FS_LZORLE F2FS_FS_POSIX_ACL F2FS_FS_SECURITY F2FS_FS_XATTR F2FS_FS_ZSTD F2FS_STAT_FS FANOTIFY FANOTIFY_ACCESS_PERMISSIONS FB FB_CFB_COPYAREA FB_CFB_FILLRECT FB_CFB_IMAGEBLIT FB_CORE FB_DEFERRED_IO FB_DEVICE FB_IOMEM_FOPS FB_IOMEM_HELPERS FB_NOTIFY FB_SYSMEM_FOPS FB_SYSMEM_HELPERS FB_SYSMEM_HELPERS_DEFERRED FB_SYS_COPYAREA FB_SYS_FILLRECT FB_SYS_IMAGEBLIT FB_TILEBLITTING FB_VESA FB_VGA16 FB_VIRTUAL FDDI FIREWIRE FIREWIRE_NET FIREWIRE_OHCI FIREWIRE_SBP2 FONT_8x16 FONT_8x8 FONT_SUPPORT FRAMEBUFFER_CONSOLE FRAMEBUFFER_CONSOLE_DETECT_PRIMARY FRAMEBUFFER_CONSOLE_ROTATION FS_DAX FS_DAX_PMD FS_ENCRYPTION FS_ENCRYPTION_ALGS FS_STACK FS_VERITY FS_VERITY_BUILTIN_SIGNATURES FTL FUSE_DAX FUSE_FS FW_LOADER_COMPRESS FW_LOADER_PAGED_BUF FW_LOADER_SYSFS FW_LOADER_USER_HELPER FW_LOADER_USER_HELPER_FALLBACK GACT_PROB GARP GENERIC_PHY GET_FREE_REGION GFS2_FS GFS2_FS_LOCKING_DLM GNSS GNSS_USB GOOGLE_COREBOOT_TABLE GOOGLE_FIRMWARE GOOGLE_MEMCONSOLE GOOGLE_MEMCONSOLE_COREBOOT GOOGLE_VPD GPIOLIB GPIOLIB_IRQCHIP GPIO_ACPI GPIO_DLN2 GPIO_LJCA GPIO_VIPERBOARD GREENASIA_FF GREYBUS GREYBUS_BRIDGED_PHY GREYBUS_ES2 GREYBUS_HID GREYBUS_USB GROUP_SCHED_WEIGHT GTP GUEST_PERF_EVENTS GVE HAVE_ARCH_NODE_DEV_GROUP HAVE_ARCH_USERFAULTFD_MINOR HAVE_ARCH_USERFAULTFD_WP HAVE_BOOTMEM_INFO_NODE HAVE_CLK_PREPARE HAVE_KVM_CPU_RELAX_INTERCEPT HAVE_KVM_DIRTY_RING HAVE_KVM_DIRTY_RING_ACQ_REL HAVE_KVM_DIRTY_RING_TSO HAVE_KVM_IRQCHIP HAVE_KVM_IRQ_BYPASS HAVE_KVM_IRQ_ROUTING HAVE_KVM_MSI HAVE_KVM_NO_POLL HAVE_KVM_PFNCACHE HAVE_KVM_PM_NOTIFIER HAVE_KVM_READONLY_MEM HAVE_SCHED_AVG_IRQ HDLC HDLC_CISCO HDLC_FR HDLC_PPP HDLC_RAW HDLC_RAW_ETH HDLC_X25 HDMI HFSPLUS_FS HFS_FS HID_ACCUTOUCH HID_ACRUX HID_ACRUX_FF HID_ALPS HID_APPLEIR HID_ASUS HID_AUREAL HID_BATTERY_STRENGTH HID_BETOP_FF HID_BIGBEN_FF HID_CMEDIA HID_CORSAIR HID_COUGAR HID_CP2112 HID_CREATIVE_SB0540 HID_ELAN HID_ELECOM HID_ELO HID_EMS_FF HID_EVISION HID_FT260 HID_GEMBIRD HID_GFRM HID_GLORIOUS HID_GOOGLE_STADIA_FF HID_GREENASIA HID_GT683R HID_HOLTEK HID_ICADE HID_JABRA HID_KEYTOUCH HID_KYE HID_LCPOWER HID_LED HID_LENOVO HID_LETSKETCH HID_LOGITECH_DJ HID_LOGITECH_HIDPP HID_MACALLY HID_MAGICMOUSE HID_MALTRON HID_MAYFLASH HID_MCP2200 HID_MCP2221 HID_MEGAWORLD_FF HID_MULTITOUCH HID_NTI HID_ORTEK HID_PENMOUNT HID_PICOLCD HID_PICOLCD_BACKLIGHT HID_PICOLCD_CIR HID_PICOLCD_FB HID_PICOLCD_LCD HID_PICOLCD_LEDS HID_PLANTRONICS HID_PRIMAX HID_PRODIKEYS HID_PXRC HID_RAZER HID_RETRODE HID_RMI HID_ROCCAT HID_SAITEK HID_SEMITEK HID_SENSOR_ACCEL_3D HID_SENSOR_ALS HID_SENSOR_CUSTOM_INTEL_HINGE HID_SENSOR_CUSTOM_SENSOR HID_SENSOR_DEVICE_ROTATION HID_SENSOR_GYRO_3D HID_SENSOR_HUB HID_SENSOR_HUMIDITY HID_SENSOR_IIO_COMMON HID_SENSOR_IIO_TRIGGER HID_SENSOR_INCLINOMETER_3D HID_SENSOR_MAGNETOMETER_3D HID_SENSOR_PRESS HID_SENSOR_PROX HID_SENSOR_TEMP HID_SIGMAMICRO HID_SPEEDLINK HID_STEELSERIES HID_THINGM HID_TIVO HID_TOPRE HID_TWINHAN HID_U2FZERO HID_UCLOGIC HID_UDRAW_PS3 HID_VIEWSONIC HID_VIVALDI HID_VIVALDI_COMMON HID_VRC2 HID_WACOM HID_WALTOP HID_WIIMOTE HID_XIAOMI HID_XINMO HID_ZYDACRON HMM_MIRROR HOLTEK_FF HOTPLUG_PCI_PCIE HPET_MMAP HPET_MMAP_DEFAULT HPFS_FS I2C_ALGOBIT I2C_CHARDEV I2C_CP2615 I2C_DESIGNWARE_CORE I2C_DESIGNWARE_PLATFORM I2C_DIOLAN_U2C I2C_DLN2 I2C_HID_ACPI I2C_HID_CORE I2C_HID_OF I2C_LJCA I2C_MUX I2C_MUX_REG I2C_ROBOTFUZZ_OSIF I2C_SI4713 I2C_SLAVE I2C_SLAVE_EEPROM I2C_TINY_USB I2C_VIPERBOARD IEEE802154 IEEE802154_6LOWPAN IEEE802154_ATUSB IEEE802154_DRIVERS IEEE802154_HWSIM IEEE802154_NL802154_EXPERIMENTAL IEEE802154_SOCKET IFB IIO IIO_BUFFER IIO_KFIFO_BUF IIO_TRIGGER IIO_TRIGGERED_BUFFER IKCONFIG IKCONFIG_PROC IMA IMA_APPRAISE IMA_APPRAISE_MODSIG IMA_DEFAULT_HASH_SHA256 IMA_LSM_RULES IMA_MEASURE_ASYMMETRIC_KEYS IMA_NG_TEMPLATE IMA_QUEUE_EARLY_BOOT_KEYS IMA_READ_POLICY IMA_WRITE_POLICY INET6_ESPINTCP INET6_ESP_OFFLOAD INET6_IPCOMP INET6_TUNNEL INET6_XFRM_TUNNEL INET_AH INET_DCCP_DIAG INET_DIAG INET_DIAG_DESTROY INET_ESP INET_ESPINTCP INET_ESP_OFFLOAD INET_IPCOMP INET_MPTCP_DIAG INET_RAW_DIAG INET_SCTP_DIAG INET_TCP_DIAG INET_UDP_DIAG INET_XFRM_TUNNEL INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_ADDR_TRANS_CONFIGFS INFINIBAND_IPOIB INFINIBAND_IPOIB_CM INFINIBAND_IPOIB_DEBUG INFINIBAND_ISER INFINIBAND_ON_DEMAND_PAGING INFINIBAND_RTRS INFINIBAND_SRP INFINIBAND_USER_ACCESS INFINIBAND_USER_MAD INFINIBAND_USER_MEM INPUT_ATI_REMOTE2 INPUT_CM109 INPUT_IMS_PCU INPUT_JOYDEV INPUT_KEYSPAN_REMOTE INPUT_LEDS INPUT_MOUSEDEV INPUT_MOUSEDEV_PSAUX INPUT_POWERMATE INPUT_UINPUT INPUT_YEALINK INTEGRITY INTEGRITY_ASYMMETRIC_KEYS INTEGRITY_AUDIT INTEGRITY_SIGNATURE INTEGRITY_TRUSTED_KEYRING INTEL_CHTWC_INT33FE INTEL_IDMA64 INTEL_IOATDMA INTEL_IOMMU_DEFAULT_ON INTEL_IOMMU_SVM INTEL_ISHTP_ECLITE INTEL_ISH_FIRMWARE_DOWNLOADER INTEL_ISH_HID INTEL_SOC_PMIC_CHTWC INTERVAL_TREE_SPAN_ITER IOMMUFD IOMMUFD_DRIVER IOMMUFD_DRIVER_CORE IOMMUFD_TEST IP6_NF_MATCH_AH IP6_NF_MATCH_EUI64 IP6_NF_MATCH_FRAG IP6_NF_MATCH_HL IP6_NF_MATCH_MH IP6_NF_MATCH_OPTS IP6_NF_MATCH_RPFILTER IP6_NF_MATCH_RT IP6_NF_MATCH_SRH IP6_NF_NAT IP6_NF_RAW IP6_NF_SECURITY IP6_NF_TARGET_HL IP6_NF_TARGET_MASQUERADE IP6_NF_TARGET_NPT IP6_NF_TARGET_SYNPROXY IPV6_FOU IPV6_FOU_TUNNEL IPV6_GRE IPV6_ILA IPV6_MIP6 IPV6_MROUTE IPV6_MROUTE_MULTIPLE_TABLES IPV6_MULTIPLE_TABLES IPV6_OPTIMISTIC_DAD IPV6_PIMSM_V2 IPV6_ROUTER_PREF IPV6_ROUTE_INFO IPV6_RPL_LWTUNNEL IPV6_SEG6_BPF IPV6_SEG6_HMAC IPV6_SEG6_LWTUNNEL IPV6_SIT_6RD IPV6_SUBTREES IPV6_TUNNEL IPV6_VTI IPVLAN IPVLAN_L3S IPVTAP IP_DCCP IP_DCCP_CCID3 IP_DCCP_TFRC_LIB IP_FIB_TRIE_STATS IP_MROUTE_MULTIPLE_TABLES IP_NF_ARPFILTER IP_NF_ARPTABLES IP_NF_ARP_MANGLE IP_NF_MATCH_AH IP_NF_MATCH_ECN IP_NF_MATCH_RPFILTER IP_NF_MATCH_TTL IP_NF_RAW IP_NF_SECURITY IP_NF_TARGET_ECN IP_NF_TARGET_NETMAP IP_NF_TARGET_REDIRECT IP_NF_TARGET_SYNPROXY IP_NF_TARGET_TTL IP_ROUTE_CLASSID IP_SCTP IP_SET IP_SET_BITMAP_IP IP_SET_BITMAP_IPMAC IP_SET_BITMAP_PORT IP_SET_HASH_IP IP_SET_HASH_IPMAC IP_SET_HASH_IPMARK IP_SET_HASH_IPPORT IP_SET_HASH_IPPORTIP IP_SET_HASH_IPPORTNET IP_SET_HASH_MAC IP_SET_HASH_NET IP_SET_HASH_NETIFACE IP_SET_HASH_NETNET IP_SET_HASH_NETPORT IP_SET_HASH_NETPORTNET IP_SET_LIST_SET IP_VS IP_VS_DH IP_VS_FO IP_VS_FTP IP_VS_PROTO_TCP IRQ_TIME_ACCOUNTING LAPB LCD_CLASS_DEVICE MAC802154 MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_VIPERBOARD MPTCP MTD NETFILTER_ADVANCED NET_ACT_GACT NET_ACT_MIRRED NET_IPGRE_DEMUX NFT_COMPAT NFT_COMPAT_ARP NFT_FWD_NETDEV NF_TABLES NF_TABLES_ARP NF_TABLES_NETDEV RADIO_ADAPTERS RADIO_SI4713 RAS RC_CORE REGULATOR RFKILL SND SOUND STAGING TRANSPARENT_HUGEPAGE TYPEC TYPEC_MUX_PI3USB30532 USB_LJCA USB_ROLES_INTEL_XHCI USB_ROLE_SWITCH VIDEO_DEV VIRTIO_FS WAN ZONE_DEVICE] disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed picked [v6.12 v6.11 v6.10 v6.8 v6.6 v6.4 v6.2 v6.0 v5.17 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 35 release tags testing release v6.12 testing commit adc218676eef25575469234709c2d87185ca223a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 75c1595e59bf14cdc8ef7ac0f4c2d4b61efac172191950234bd6acb29733b4a0 all runs: crashed: WARNING in mptcp_pm_nl_set_flags representative crash: WARNING in mptcp_pm_nl_set_flags, types: [WARNING] testing release v6.11 testing commit 98f7e32f20d28ec452afb208f9cffc08448a2652 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0a5140ca65c5d355c0ff47f7563da96021100d9fb35d4f14bcfc4642b54a9a72 all runs: crashed: WARNING in mptcp_pm_nl_set_flags representative crash: WARNING in mptcp_pm_nl_set_flags, types: [WARNING] testing release v6.10 testing commit 0c3836482481200ead7b416ca80c68a29cfdaabd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 92e4fe465b1fb7a10b420939834f7f642218ff632d2d5ef377b1776ad5cbc4ba all runs: OK false negative chance: 0.000 # git bisect start 98f7e32f20d28ec452afb208f9cffc08448a2652 0c3836482481200ead7b416ca80c68a29cfdaabd Bisecting: 7076 revisions left to test after this (roughly 13 steps) [b3ce7a30847a54a7f96a35e609303d8afecd460b] Merge tag 'drm-next-2024-07-18' of https://gitlab.freedesktop.org/drm/kernel testing commit b3ce7a30847a54a7f96a35e609303d8afecd460b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: baec2dcb1ac0690c77ad17fa35b1ce2a1f1027bf3b94d133fd2d2b32a38bd4fa all runs: OK false negative chance: 0.000 # git bisect good b3ce7a30847a54a7f96a35e609303d8afecd460b Bisecting: 3385 revisions left to test after this (roughly 12 steps) [fbc90c042cd1dc7258ebfebe6d226017e5b5ac8c] Merge tag 'mm-stable-2024-07-21-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm testing commit fbc90c042cd1dc7258ebfebe6d226017e5b5ac8c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 33ad4565b62b57e1c5956c6506316f8dedb6d0a3aa48093c4b2a7294785f9379 all runs: OK false negative chance: 0.000 # git bisect good fbc90c042cd1dc7258ebfebe6d226017e5b5ac8c Bisecting: 1693 revisions left to test after this (roughly 11 steps) [fa63c6434b6f6aaf9d8d599dc899bc0a074cc0ad] net: dsa: vsc73xx: check busy flag in MDIO operations testing commit fa63c6434b6f6aaf9d8d599dc899bc0a074cc0ad gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1070e50d7456aa96a08cc4459cab555193d7f7165c36902198174f38ed0d81e0 all runs: OK false negative chance: 0.000 # git bisect good fa63c6434b6f6aaf9d8d599dc899bc0a074cc0ad Bisecting: 843 revisions left to test after this (roughly 10 steps) [72bea05cb1ad486b1a850f584cc93b651579ad2f] Merge tag 'bcachefs-2024-08-24' of git://evilpiepirate.org/bcachefs testing commit 72bea05cb1ad486b1a850f584cc93b651579ad2f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f0c898aa9a3e93a6e1a85eceaaa76e6690f5d16fd9f83e409d79fff4a26c6a0e all runs: crashed: WARNING in mptcp_pm_nl_set_flags representative crash: WARNING in mptcp_pm_nl_set_flags, types: [WARNING] # git bisect bad 72bea05cb1ad486b1a850f584cc93b651579ad2f Bisecting: 424 revisions left to test after this (roughly 9 steps) [e4a55b555db6d2a006551605ef4404529e878cd2] Merge tag 'libnvdimm-fixes-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm testing commit e4a55b555db6d2a006551605ef4404529e878cd2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 79d831323f2ca6ccb5640d8b652afbe5794e4c664e3e6f86a0097ddda0c76971 all runs: OK false negative chance: 0.000 # git bisect good e4a55b555db6d2a006551605ef4404529e878cd2 Bisecting: 167 revisions left to test after this (roughly 8 steps) [aa0743a229366e8c1963f1b72a1c974a9d15f08f] Merge tag 'net-6.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit aa0743a229366e8c1963f1b72a1c974a9d15f08f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c6b35747c38f05bff05628f9494b8078e72554db986fbc35f7c73e6e84e7eae2 all runs: crashed: WARNING in mptcp_pm_nl_set_flags representative crash: WARNING in mptcp_pm_nl_set_flags, types: [WARNING] # git bisect bad aa0743a229366e8c1963f1b72a1c974a9d15f08f Bisecting: 126 revisions left to test after this (roughly 7 steps) [6e4436539ae182dc86d57d13849862bcafaa4709] Merge tag 'hid-for-linus-2024081901' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid testing commit 6e4436539ae182dc86d57d13849862bcafaa4709 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0c5203058d51e68cf6174b47eb44dc8d160a6f43d9f0d972ff9165f58dc6d2ff all runs: OK false negative chance: 0.000 # git bisect good 6e4436539ae182dc86d57d13849862bcafaa4709 Bisecting: 63 revisions left to test after this (roughly 6 steps) [b128ed5ab27330deeeaf51ea8bb69f1442a96f7f] udp: fix receiving fraglist GSO packets testing commit b128ed5ab27330deeeaf51ea8bb69f1442a96f7f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fa459db62333d954c92abf8811b6e3882f5c7e4303860deb7ef32e00c7396fc5 all runs: crashed: WARNING in mptcp_pm_nl_set_flags representative crash: WARNING in mptcp_pm_nl_set_flags, types: [WARNING] # git bisect bad b128ed5ab27330deeeaf51ea8bb69f1442a96f7f Bisecting: 30 revisions left to test after this (roughly 5 steps) [1e557246f8dbdb476f7112ab58d2de947f22acc5] Merge branch 'selftests-udpgro-fixes' testing commit 1e557246f8dbdb476f7112ab58d2de947f22acc5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9bbdc50e6d081cf66d092c7d20c4d7fad15bb775c0a78d78cc292681d0cbbc91 all runs: OK false negative chance: 0.000 # git bisect good 1e557246f8dbdb476f7112ab58d2de947f22acc5 Bisecting: 15 revisions left to test after this (roughly 4 steps) [c07ff8592d57ed258afee5a5e04991a48dbaf382] netem: fix return value if duplicate enqueue fails testing commit c07ff8592d57ed258afee5a5e04991a48dbaf382 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b961ec5528445abae74a173966df9d8ad35d983c84470f85370bd99d70eab589 all runs: OK false negative chance: 0.000 # git bisect good c07ff8592d57ed258afee5a5e04991a48dbaf382 Bisecting: 7 revisions left to test after this (roughly 3 steps) [322ea3778965da72862cca2a0c50253aacf65fe6] mptcp: pm: only mark 'subflow' endp as available testing commit 322ea3778965da72862cca2a0c50253aacf65fe6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 13d9c89a24ce10fe77b6252834a5d006f1ddf48fc3b1f8262400600517e834e7 all runs: crashed: WARNING in mptcp_pm_nl_set_flags representative crash: WARNING in mptcp_pm_nl_set_flags, types: [WARNING] # git bisect bad 322ea3778965da72862cca2a0c50253aacf65fe6 Bisecting: 3 revisions left to test after this (roughly 2 steps) [65fb58afa341ad68e71e5c4d816b407e6a683a66] selftests: mptcp: join: check re-using ID of closed subflow testing commit 65fb58afa341ad68e71e5c4d816b407e6a683a66 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 151d8493c7f5a72a69814fb834a30727e77da992e4264d41e6807a76827d61d1 all runs: OK false negative chance: 0.000 # git bisect good 65fb58afa341ad68e71e5c4d816b407e6a683a66 Bisecting: 1 revision left to test after this (roughly 1 step) [e06959e9eebdfea4654390f53b65cff57691872e] selftests: mptcp: join: test for flush/re-add endpoints testing commit e06959e9eebdfea4654390f53b65cff57691872e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7ac805dc2cd83f8f5d95bc11d716cbc4bb91c6cdbb40dcd5e97bc250348f28d5 all runs: OK false negative chance: 0.000 # git bisect good e06959e9eebdfea4654390f53b65cff57691872e Bisecting: 0 revisions left to test after this (roughly 0 steps) [f448451aa62d54be16acb0034223c17e0d12bc69] mptcp: pm: remove mptcp_pm_remove_subflow() testing commit f448451aa62d54be16acb0034223c17e0d12bc69 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 24d85cd491227cdedd7d0807711449e1eb6631510b8cdce43a229ce019a06882 all runs: OK false negative chance: 0.000 # git bisect good f448451aa62d54be16acb0034223c17e0d12bc69 322ea3778965da72862cca2a0c50253aacf65fe6 is the first bad commit commit 322ea3778965da72862cca2a0c50253aacf65fe6 Author: Matthieu Baerts (NGI0) Date: Mon Aug 19 21:45:26 2024 +0200 mptcp: pm: only mark 'subflow' endp as available Adding the following warning ... WARN_ON_ONCE(msk->pm.local_addr_used == 0) ... before decrementing the local_addr_used counter helped to find a bug when running the "remove single address" subtest from the mptcp_join.sh selftests. Removing a 'signal' endpoint will trigger the removal of all subflows linked to this endpoint via mptcp_pm_nl_rm_addr_or_subflow() with rm_type == MPTCP_MIB_RMSUBFLOW. This will decrement the local_addr_used counter, which is wrong in this case because this counter is linked to 'subflow' endpoints, and here it is a 'signal' endpoint that is being removed. Now, the counter is decremented, only if the ID is being used outside of mptcp_pm_nl_rm_addr_or_subflow(), only for 'subflow' endpoints, and if the ID is not 0 -- local_addr_used is not taking into account these ones. This marking of the ID as being available, and the decrement is done no matter if a subflow using this ID is currently available, because the subflow could have been closed before. Fixes: 06faa2271034 ("mptcp: remove multi addresses and subflows in PM") Cc: stable@vger.kernel.org Reviewed-by: Mat Martineau Signed-off-by: Matthieu Baerts (NGI0) Link: https://patch.msgid.link/20240819-net-mptcp-pm-reusing-id-v1-8-38035d40de5b@kernel.org Signed-off-by: Jakub Kicinski net/mptcp/pm_netlink.c | 26 +++++++++++++++++--------- 1 file changed, 17 insertions(+), 9 deletions(-) accumulated error probability: 0.00 culprit signature: 13d9c89a24ce10fe77b6252834a5d006f1ddf48fc3b1f8262400600517e834e7 parent signature: 24d85cd491227cdedd7d0807711449e1eb6631510b8cdce43a229ce019a06882 revisions tested: 23, total time: 10h6m57.497521209s (build: 2h41m55.718514607s, test: 2h27m47.608052235s) first bad commit: 322ea3778965da72862cca2a0c50253aacf65fe6 mptcp: pm: only mark 'subflow' endp as available recipients (to): ["kuba@kernel.org" "martineau@kernel.org" "matttbe@kernel.org"] recipients (cc): [] crash: WARNING in mptcp_pm_nl_set_flags ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7324 at net/mptcp/pm_netlink.c:1446 __mark_subflow_endp_available net/mptcp/pm_netlink.c:1446 [inline] WARNING: CPU: 1 PID: 7324 at net/mptcp/pm_netlink.c:1446 mptcp_pm_nl_fullmesh net/mptcp/pm_netlink.c:1927 [inline] WARNING: CPU: 1 PID: 7324 at net/mptcp/pm_netlink.c:1446 mptcp_nl_set_flags net/mptcp/pm_netlink.c:1950 [inline] WARNING: CPU: 1 PID: 7324 at net/mptcp/pm_netlink.c:1446 mptcp_pm_nl_set_flags+0x469/0x4a0 net/mptcp/pm_netlink.c:2011 Modules linked in: CPU: 1 UID: 0 PID: 7324 Comm: syz.6.1498 Not tainted 6.11.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:__mark_subflow_endp_available net/mptcp/pm_netlink.c:1446 [inline] RIP: 0010:mptcp_pm_nl_fullmesh net/mptcp/pm_netlink.c:1927 [inline] RIP: 0010:mptcp_nl_set_flags net/mptcp/pm_netlink.c:1950 [inline] RIP: 0010:mptcp_pm_nl_set_flags+0x469/0x4a0 net/mptcp/pm_netlink.c:2011 Code: 80 00 00 00 83 f8 01 0f 84 d4 fe ff ff 0f 8d d6 fe ff ff 48 83 eb 80 48 89 df be 03 00 00 00 e8 ad 55 12 ff e9 c0 fe ff ff 90 <0f> 0b 90 eb a8 31 c0 65 48 8b 0c 25 28 00 00 00 48 3b 8c 24 90 00 RSP: 0018:ffffc9000305f960 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff888105bc5a00 RCX: 0000000000000001 RDX: 8aa32935f1c69eba RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000305fa28 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: 000000000000000d R14: ffff888105bc6438 R15: ffff8881097ab380 FS: 00007f42afb746c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f42aed6b7e0 CR3: 0000000104704000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0x391/0x3d0 net/netlink/genetlink.c:1210 netlink_rcv_skb+0xe0/0x110 net/netlink/af_netlink.c:2550 genl_rcv+0x23/0x30 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x1de/0x2d0 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x33c/0x3e0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x8e/0xb0 net/socket.c:745 ____sys_sendmsg+0x1a7/0x200 net/socket.c:2597 ___sys_sendmsg net/socket.c:2651 [inline] __sys_sendmsg+0x2c7/0x310 net/socket.c:2680 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xe0/0x1f0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f42aed85d29 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f42afb74038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f42aef75fa0 RCX: 00007f42aed85d29 RDX: 0000000000000000 RSI: 0000000020000480 RDI: 0000000000000007 RBP: 00007f42aee01b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f42aef75fa0 R15: 00007ffda0404768