ci starts bisection 2024-11-15 14:51:31.722335663 +0000 UTC m=+39052.796491729 bisecting cause commit starting from ccb35037c48a16dfa377e3af3be2c164e73d54f0 building syzkaller on 3a4654820e658eac4775498511ddef4f1019ed67 ensuring issue is reproducible on original commit ccb35037c48a16dfa377e3af3be2c164e73d54f0 testing commit ccb35037c48a16dfa377e3af3be2c164e73d54f0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ac56b5d270ba21c8b33d8c292bdb6ea4b906e9ca47c91fddf87a0a661ba84a38 run #0: crashed: WARNING in l2tp_exit_net run #1: crashed: WARNING in l2tp_exit_net run #2: crashed: WARNING in l2tp_exit_net run #3: crashed: WARNING in l2tp_exit_net run #4: crashed: WARNING in l2tp_exit_net run #5: crashed: WARNING in l2tp_exit_net run #6: crashed: WARNING in l2tp_exit_net run #7: crashed: WARNING in l2tp_exit_net run #8: crashed: WARNING in l2tp_exit_net run #9: crashed: WARNING in l2tp_exit_net run #10: crashed: WARNING in l2tp_exit_net run #11: crashed: WARNING in l2tp_exit_net run #12: crashed: WARNING in l2tp_exit_net run #13: crashed: WARNING in l2tp_exit_net run #14: crashed: WARNING in l2tp_exit_net run #15: crashed: WARNING in l2tp_exit_net run #16: OK run #17: OK run #18: OK run #19: OK representative crash: WARNING in l2tp_exit_net, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit ccb35037c48a16dfa377e3af3be2c164e73d54f0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3c93a79c52011817bb1bd1b0a033034d7c7596a558fc676f4370f11c611feeb3 run #0: crashed: WARNING in l2tp_exit_net run #1: crashed: WARNING in l2tp_exit_net run #2: crashed: WARNING in l2tp_exit_net run #3: crashed: WARNING in l2tp_exit_net run #4: crashed: WARNING in l2tp_exit_net run #5: crashed: WARNING in l2tp_exit_net run #6: crashed: WARNING in l2tp_exit_net run #7: crashed: WARNING in l2tp_exit_net run #8: OK run #9: crashed: WARNING in l2tp_exit_net representative crash: WARNING in l2tp_exit_net, 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=8196 leaves diff=2112 split chunks (needed=false): <2112> split chunk #0 of len 2112 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 ccb35037c48a16dfa377e3af3be2c164e73d54f0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 92a4958d837b8350c888f9ac9c7c0c52405875a418081de091ae32d9f4fcd819 all runs: crashed: WARNING in l2tp_exit_net representative crash: WARNING in l2tp_exit_net, 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 ccb35037c48a16dfa377e3af3be2c164e73d54f0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0ca5453c08d420c26cac8aa225696033911849e741d5f114cf78a4bf3d236919 run #0: crashed: WARNING in l2tp_exit_net run #1: crashed: WARNING in l2tp_exit_net run #2: crashed: WARNING in l2tp_exit_net run #3: crashed: WARNING in l2tp_exit_net run #4: crashed: WARNING in l2tp_exit_net run #5: crashed: WARNING in l2tp_exit_net run #6: crashed: WARNING in l2tp_exit_net run #7: OK run #8: crashed: WARNING in l2tp_exit_net run #9: OK representative crash: WARNING in l2tp_exit_net, types: [WARNING] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit ccb35037c48a16dfa377e3af3be2c164e73d54f0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8bb79e4b47d7e4c6aa55f2fd2c251078e65d75e1b2964646c4224ff111dc2c44 run #0: crashed: WARNING in l2tp_exit_net run #1: crashed: WARNING in l2tp_exit_net run #2: crashed: WARNING in l2tp_exit_net run #3: crashed: WARNING in l2tp_exit_net run #4: crashed: WARNING in l2tp_exit_net run #5: crashed: WARNING in l2tp_exit_net run #6: crashed: WARNING in l2tp_exit_net run #7: crashed: WARNING in l2tp_exit_net run #8: crashed: WARNING in l2tp_exit_net run #9: OK representative crash: WARNING in l2tp_exit_net, types: [WARNING] 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 ccb35037c48a16dfa377e3af3be2c164e73d54f0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6d55142364359716987a8ccf7487e4285e0824580b8f0c8d91cb128b60991564 all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit ccb35037c48a16dfa377e3af3be2c164e73d54f0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building ccb35037c48a16dfa377e3af3be2c164e73d54f0: drivers/gpu/drm/bridge/aux-bridge.c:116: undefined reference to `devm_drm_of_get_bridge' minimized to 843 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ATM AX25 BCMA BLK_DEV_ZONED BPF_SYSCALL BT BT_BREDR BT_HIDP BXT_WC_PMIC_OPREGION CARDBUS CFG80211 CFG80211_WEXT CMA COMMON_CLK CONTIG_ALLOC DAX DLM DRM DVB_CORE ENCRYPTED_KEYS EXTCON FB GENEVE GPIOLIB HAMRADIO HAVE_CLK HID_NVIDIA_SHIELD HID_PLAYSTATION HID_SENSOR_HUB HID_SMARTJOYPLUS HID_STEAM HID_THRUSTMASTER HID_ZEROPLUS I2C_MUX IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN INTEL_SCU_IPC INTEL_SOC_PMIC_BXTWC IOMMUFD IP_SCTP IRQ_REMAP KVM KVM_INTEL L2TP LEDS_CLASS_MULTICOLOR LIBNVDIMM MAC80211 MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_COMMON_OPTIONS MEDIA_CONTROLLER MEDIA_DIGITAL_TV_SUPPORT MEDIA_PLATFORM_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_INTEL_PMC_BXT MFD_MT6360 MFD_MT6370 MFD_RETU MFD_VIPERBOARD MMC MTD MTD_UBI NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 NLS_CODEPAGE_862 NLS_CODEPAGE_863 NLS_CODEPAGE_864 NLS_CODEPAGE_865 NLS_CODEPAGE_866 NLS_CODEPAGE_869 NLS_CODEPAGE_874 NLS_CODEPAGE_932 NLS_CODEPAGE_936 NLS_CODEPAGE_949 NLS_CODEPAGE_950 NLS_ISO8859_13 NLS_ISO8859_14 NLS_ISO8859_15 NLS_ISO8859_2 NLS_ISO8859_3 NLS_ISO8859_4 NLS_ISO8859_5 NLS_ISO8859_6 NLS_ISO8859_7 NLS_ISO8859_8 NLS_ISO8859_9 NLS_KOI8_R NLS_KOI8_U NLS_MAC_CELTIC NLS_MAC_CENTEURO NLS_MAC_CROATIAN NLS_MAC_CYRILLIC NLS_MAC_GAELIC NLS_MAC_GREEK NLS_MAC_ICELAND NLS_MAC_INUIT NLS_MAC_ROMAN NLS_MAC_ROMANIAN NLS_MAC_TURKISH NLS_UCS2_UTILS NOP_USB_XCEIV NOZOMI NTFS3_FS NTFS3_FS_POSIX_ACL NTFS3_LZX_XPRESS NULL_TTY NUMA_BALANCING NUMA_BALANCING_DEFAULT_ENABLED NUMA_EMU NUMA_KEEP_MEMINFO NVDIMM_DAX NVDIMM_KEYS NVDIMM_PFN NVIDIA_SHIELD_FF NVME_CORE NVME_FABRICS NVME_FC NVME_MULTIPATH NVME_RDMA NVME_TARGET NVME_TARGET_FC NVME_TARGET_FCLOOP NVME_TARGET_LOOP NVME_TARGET_RDMA NVME_TARGET_TCP NVME_TCP N_GSM N_HDLC OCFS2_DEBUG_FS OCFS2_FS OCFS2_FS_O2CB OCFS2_FS_STATS OCFS2_FS_USERSPACE_CLUSTER OF_GPIO OF_PMEM OMFS_FS OPENVSWITCH OPENVSWITCH_GENEVE OPENVSWITCH_GRE OPENVSWITCH_VXLAN ORANGEFS_FS OSF_PARTITION OVERLAY_FS OVERLAY_FS_DEBUG OVERLAY_FS_INDEX OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW OVERLAY_FS_REDIRECT_DIR PACKET_DIAG PAGE_IDLE_FLAG PAGE_REPORTING PAHOLE_HAS_BTF_TAG PAHOLE_HAS_LANG_EXCLUDE PAHOLE_HAS_SPLIT_BTF PARPORT PARPORT_NOT_PC PARTITION_ADVANCED PCCARD PCCARD_NONSTATIC PCIEAER PCI_ENDPOINT PCI_IOV PCMCIA PCMCIA_LOAD_CIS PERCPU_STATS PERSISTENT_KEYRINGS PHONET PHYLINK PHY_CPCAP_USB PHY_QCOM_USB_HS PHY_QCOM_USB_HSIC PHY_SAMSUNG_USB2 PHY_TUSB1210 PKCS7_TEST_KEY PKCS8_PRIVATE_KEY_PARSER PLAYSTATION_FF PLFXLC PMIC_OPREGION PM_CLK PNFS_BLOCK PNFS_FILE_LAYOUT PNFS_FLEXFILE_LAYOUT PPP PPPOATM PPPOE PPPOE_HASH_BITS_1 PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPT_NOTIFIERS PROC_CHILDREN PSAMPLE PSI PSTORE PSTORE_COMPRESS PTP_1588_CLOCK_VMCLOCK QCOM_QMI_HELPERS QNX4FS_FS QNX6FS_FS QRTR QRTR_TUN R8712U RADIO_ADAPTERS RADIO_SHARK RADIO_SHARK2 RADIO_SI470X RADIO_SI4713 RADIO_TEA575X RAID6_PQ RAID_ATTRS RC_ATI_REMOTE RC_CORE RC_DEVICES RC_XBOX_DVD RDMA_RXE RDMA_SIW RDS RDS_RDMA RDS_TCP READ_ONLY_THP_FOR_FS REALTEK_AUTOPM REED_SOLOMON REED_SOLOMON_DEC8 REGMAP REGMAP_I2C REGMAP_IRQ REGMAP_MMIO REGMAP_SPI REGULATOR REGULATOR_FIXED_VOLTAGE REGULATOR_TWL4030 REISERFS_FS REISERFS_FS_POSIX_ACL REISERFS_FS_SECURITY REISERFS_FS_XATTR REISERFS_PROC_INFO RESET_CONTROLLER RFKILL RFKILL_INPUT RFKILL_LEDS RMI4_2D_SENSOR RMI4_CORE RMI4_F03 RMI4_F03_SERIO RMI4_F11 RMI4_F12 RMI4_F30 ROMFS_BACKED_BY_BOTH ROMFS_FS ROMFS_ON_BLOCK ROMFS_ON_MTD ROSE RTC_DRV_HID_SENSOR_TIME RXKAD SCHED_CORE SCREEN_INFO SCSI_FC_ATTRS SCSI_HPSA SCSI_ISCSI_ATTRS SCSI_LOGGING SCSI_NETLINK SCSI_SAS_ATA SCSI_SAS_ATTRS SCSI_SAS_LIBSAS SCSI_SCAN_ASYNC SCSI_SRP_ATTRS SCTP_COOKIE_HMAC_MD5 SCTP_COOKIE_HMAC_SHA1 SCTP_DEFAULT_COOKIE_HMAC_MD5 SECONDARY_TRUSTED_KEYRING SECURITY_INFINIBAND SECURITY_NETWORK_XFRM SENSORS_AQUACOMPUTER_D5NEXT SENSORS_CORSAIR_CPRO SENSORS_CORSAIR_PSU SENSORS_GIGABYTE_WATERFORCE SENSORS_NZXT_KRAKEN2 SENSORS_NZXT_SMART2 SENSORS_POWERZ SERIAL_DEV_BUS SERIAL_DEV_CTRL_TTYPORT SERIAL_MCTRL_GPIO SGI_PARTITION SIGNATURE SIGNED_PE_FILE_VERIFICATION SKB_DECRYPTED SLHC SLIP SLIP_COMPRESSED SLIP_MODE_SLIP6 SLIP_SMART SMARTJOYPLUS_FF SMBFS SMC SMC_DIAG SMSC_PHY SMS_SDIO_DRV SMS_SIANO_DEBUGFS SMS_SIANO_MDTV SMS_SIANO_RC SMS_USB_DRV SND SND_ALOOP SND_BCD2000 SND_CTL_FAST_LOOKUP SND_CTL_LED SND_DEBUG SND_DMA_SGBUF SND_DRIVERS SND_DUMMY SND_DYNAMIC_MINORS SND_HDA SND_HDA_CODEC_ANALOG SND_HDA_CODEC_CA0110 SND_HDA_CODEC_CA0132 SND_HDA_CODEC_CIRRUS SND_HDA_CODEC_CMEDIA SND_HDA_CODEC_CONEXANT SND_HDA_CODEC_HDMI SND_HDA_CODEC_REALTEK SND_HDA_CODEC_SI3054 SND_HDA_CODEC_SIGMATEL SND_HDA_CODEC_VIA SND_HDA_COMPONENT SND_HDA_CORE SND_HDA_GENERIC SND_HDA_GENERIC_LEDS SND_HDA_HWDEP SND_HDA_I915 SND_HDA_INPUT_BEEP SND_HDA_INTEL SND_HDA_PATCH_LOADER SND_HDA_RECONFIG SND_HDA_SCODEC_COMPONENT SND_HRTIMER SND_HWDEP SND_INTEL_DSP_CONFIG SND_INTEL_NHLT SND_INTEL_SOUNDWIRE_ACPI SND_JACK SND_JACK_INPUT_DEV SND_MIXER_OSS SND_OSSEMUL SND_PCI SND_PCM SND_PCMCIA SND_PCM_OSS SND_PCM_OSS_PLUGINS SND_PCM_TIMER SND_PCM_XRUN_DEBUG SND_PROC_FS SND_RAWMIDI SND_SEQUENCER SND_SEQUENCER_OSS SND_SEQ_DEVICE SND_SEQ_DUMMY SND_SEQ_HRTIMER_DEFAULT SND_SEQ_MIDI SND_SEQ_MIDI_EVENT SND_SEQ_UMP_CLIENT SND_SEQ_VIRMIDI SND_SOC SND_SOC_I2C_AND_SPI SND_SUPPORT_OLD_API SND_TIMER SND_UMP SND_UMP_LEGACY_RAWMIDI SND_USB SND_USB_6FIRE SND_USB_AUDIO SND_USB_AUDIO_MIDI_V2 SND_USB_AUDIO_USE_MEDIA_CONTROLLER SND_USB_CAIAQ SND_USB_CAIAQ_INPUT SND_USB_HIFACE SND_USB_LINE6 SND_USB_POD SND_USB_PODHD SND_USB_TONEPORT SND_USB_UA101 SND_USB_US122L SND_USB_USX2Y SND_USB_VARIAX SND_VERBOSE_PROCFS SND_VIRMIDI SND_VIRTIO SND_VMASTER SND_X86 SOCK_VALIDATE_XMIT SOLARIS_X86_PARTITION SONY_FF SOUND SOUNDWIRE SOUND_OSS_CORE SOUND_OSS_CORE_PRECLAIM SPI SPI_DLN2 SPI_DYNAMIC SPI_LJCA SPI_MASTER SQUASHFS SQUASHFS_4K_DEVBLK_SIZE SQUASHFS_COMPILE_DECOMP_MULTI SQUASHFS_DECOMP_MULTI SQUASHFS_FILE_DIRECT SQUASHFS_LZ4 SQUASHFS_LZO SQUASHFS_XATTR SQUASHFS_XZ SQUASHFS_ZLIB SQUASHFS_ZSTD SSB SSB_PCIHOST_POSSIBLE SSB_PCMCIAHOST_POSSIBLE SSB_SDIOHOST_POSSIBLE STAGING STEAM_FF STP STREAM_PARSER SUNRPC_BACKCHANNEL SUN_PARTITION SW_SYNC SYSFB SYSV68_PARTITION SYSV_FS TABLET_USB_ACECAD TABLET_USB_AIPTEK TABLET_USB_HANWANG TABLET_USB_KBTAB TABLET_USB_PEGASUS TAHVO_USB TAHVO_USB_HOST_BY_DEFAULT TAP TARGET_CORE TASKS_TRACE_RCU TCG_CRB TCG_TIS TCG_TIS_CORE TCG_TPM TCP_CONG_BBR TCP_CONG_BIC TCP_CONG_CDG TCP_CONG_DCTCP TCP_CONG_HSTCP TCP_CONG_HTCP TCP_CONG_HYBLA TCP_CONG_ILLINOIS TCP_CONG_LP TCP_CONG_NV TCP_CONG_SCALABLE TCP_CONG_VEGAS TCP_CONG_VENO TCP_CONG_WESTWOOD TCP_CONG_YEAH TEE TEXTSEARCH TEXTSEARCH_BM TEXTSEARCH_FSM TEXTSEARCH_KMP THERMAL_NETLINK THP_SWAP THRUSTMASTER_FF TIPC TIPC_CRYPTO TIPC_DIAG TIPC_MEDIA_IB TIPC_MEDIA_UDP TLS TLS_TOE TMPFS_QUOTA TOUCHSCREEN_SUR40 TOUCHSCREEN_USB_3M TOUCHSCREEN_USB_COMPOSITE TOUCHSCREEN_USB_DMC_TSC10 TOUCHSCREEN_USB_E2I TOUCHSCREEN_USB_EASYTOUCH TOUCHSCREEN_USB_EGALAX TOUCHSCREEN_USB_ELO TOUCHSCREEN_USB_ETT_TC45USB TOUCHSCREEN_USB_ETURBO TOUCHSCREEN_USB_GENERAL_TOUCH TOUCHSCREEN_USB_GOTOP TOUCHSCREEN_USB_GUNZE TOUCHSCREEN_USB_IDEALTEK TOUCHSCREEN_USB_IRTOUCH TOUCHSCREEN_USB_ITM TOUCHSCREEN_USB_JASTEC TOUCHSCREEN_USB_NEXIO TOUCHSCREEN_USB_PANJIT TOUCHSCREEN_USB_ZYTRONIC TRANSPARENT_HUGEPAGE TRANSPARENT_HUGEPAGE_MADVISE TTPCI_EEPROM TTY_PRINTK TUN TUN_VNET_CROSS_LE TWL4030_CORE TYPEC TYPEC_ANX7411 TYPEC_DP_ALTMODE TYPEC_FUSB302 TYPEC_HD3SS3220 TYPEC_MT6360 TYPEC_MUX_FSA4480 TYPEC_MUX_GPIO_SBU TYPEC_MUX_INTEL_PMC TYPEC_MUX_NB7VPQ904M TYPEC_MUX_PTN36502 TYPEC_MUX_WCD939X_USBSS TYPEC_NVIDIA_ALTMODE TYPEC_RT1711H TYPEC_RT1719 TYPEC_STUSB160X TYPEC_TCPCI TYPEC_TCPCI_MAXIM TYPEC_TCPCI_MT6370 TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI TYPEC_WCOVE TYPEC_WUSB3801 UBIFS_ATIME_SUPPORT UBIFS_FS UBIFS_FS_ADVANCED_COMPR UBIFS_FS_LZO UBIFS_FS_SECURITY UBIFS_FS_XATTR UBIFS_FS_ZLIB UBIFS_FS_ZSTD UCSI_ACPI UCSI_CCG UCSI_STM32G0 UDF_FS UDMABUF UFS_FS UFS_FS_WRITE UHID ULTRIX_PARTITION UNICODE UNIXWARE_DISKLABEL UNIX_DIAG USB4 USB4_NET USBIP_CORE USBIP_HOST USBIP_VHCI_HCD USBIP_VUDC USBPCWATCHDOG USB_ACM USB_ADUTUX USB_AIRSPY USB_ALI_M5632 USB_AMD5536UDC USB_AN2720 USB_APPLEDISPLAY USB_ARMLINUX USB_ATM USB_BDC_UDC USB_BELKIN USB_C67X00_HCD USB_CATC USB_CDC_PHONET USB_CDNS2_UDC USB_CDNS3 USB_CDNS3_GADGET USB_CDNS3_HOST USB_CDNS3_PCI_WRAP USB_CDNSP_GADGET USB_CDNSP_HOST USB_CDNSP_PCI USB_CDNS_HOST USB_CDNS_SUPPORT USB_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_GENERIC USB_CHIPIDEA_HOST USB_CHIPIDEA_MSM USB_CHIPIDEA_NPCM USB_CHIPIDEA_PCI USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_CONFIGFS_F_FS USB_CONFIGFS_F_HID USB_CONFIGFS_F_LB_SS USB_CONFIGFS_F_MIDI USB_CONFIGFS_F_MIDI2 USB_CONFIGFS_F_PRINTER USB_CONFIGFS_F_TCM USB_CONFIGFS_F_UAC1 USB_CONFIGFS_F_UAC1_LEGACY USB_CONFIGFS_F_UAC2 USB_CONFIGFS_F_UVC USB_CONFIGFS_MASS_STORAGE USB_CONFIGFS_NCM USB_CONFIGFS_OBEX USB_CONFIGFS_PHONET USB_CONFIGFS_RNDIS USB_CONFIGFS_SERIAL USB_CONN_GPIO USB_CXACRU USB_CYPRESS_CY7C63 USB_CYTHERM USB_DSBR USB_DUMMY_HCD USB_DWC2 USB_DWC2_HOST USB_DWC2_PCI USB_DWC3 USB_DWC3_GADGET USB_DWC3_HAPS USB_DWC3_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI USB_DYNAMIC_MINORS USB_EG20T USB_EHCI_FSL USB_EHCI_HCD_PLATFORM USB_EHCI_ROOT_HUB_TT USB_EHSET_TEST_FIXTURE USB_EMI26 USB_EMI62 USB_EPSON2888 USB_EZUSB_FX2 USB_FEW_INIT_RETRIES USB_F_ACM USB_F_ECM USB_F_EEM USB_F_FS USB_F_HID USB_F_MASS_STORAGE USB_F_MIDI USB_F_MIDI2 USB_F_NCM USB_F_OBEX USB_F_PHONET USB_F_PRINTER USB_F_RNDIS USB_F_SERIAL USB_F_SS_LB USB_F_SUBSET USB_F_TCM USB_F_UAC1 USB_F_UAC1_LEGACY USB_F_UAC2 USB_F_UVC USB_GADGET USB_GADGETFS USB_GADGET_DEBUG_FILES USB_GADGET_DEBUG_FS USB_GL860 USB_GOKU USB_GR_UDC USB_GSPCA USB_GSPCA_BENQ USB_GSPCA_CONEX USB_GSPCA_CPIA1 USB_GSPCA_DTCS033 USB_GSPCA_ETOMS USB_GSPCA_FINEPIX USB_GSPCA_JEILINJ USB_GSPCA_JL2005BCD USB_GSPCA_KINECT USB_GSPCA_KONICA USB_GSPCA_MARS USB_GSPCA_MR97310A USB_GSPCA_NW80X USB_GSPCA_OV519 USB_GSPCA_OV534 USB_GSPCA_OV534_9 USB_GSPCA_PAC207 USB_GSPCA_PAC7302 USB_GSPCA_PAC7311 USB_GSPCA_SE401 USB_GSPCA_SN9C2028 USB_GSPCA_SN9C20X USB_GSPCA_SONIXB USB_GSPCA_SONIXJ USB_GSPCA_SPCA1528 USB_GSPCA_SPCA500 USB_GSPCA_SPCA501 USB_GSPCA_SPCA505 USB_GSPCA_SPCA506 USB_GSPCA_SPCA508 USB_GSPCA_SPCA561 USB_GSPCA_SQ905 USB_GSPCA_SQ905C USB_GSPCA_SQ930X USB_GSPCA_STK014 USB_GSPCA_STK1135 USB_GSPCA_STV0680 USB_GSPCA_SUNPLUS USB_GSPCA_T613 USB_GSPCA_TOPRO USB_GSPCA_TOUPTEK USB_GSPCA_TV8532 USB_GSPCA_VC032X USB_GSPCA_VICAM USB_GSPCA_XIRLINK_CIT USB_GSPCA_ZC3XX USB_HACKRF USB_HCD_BCMA USB_HCD_SSB USB_HSIC_USB3503 USB_HSIC_USB4604 USB_HSO USB_HUB_USB251XB USB_IDMOUSE USB_IOWARRIOR USB_IPHETH USB_ISIGHTFW USB_ISP116X_HCD USB_ISP1301 USB_ISP1760 USB_ISP1760_DUAL_ROLE USB_ISP1760_HCD USB_ISP1761_UDC USB_KAWETH USB_KC2190 USB_KEENE USB_LAN78XX USB_LCD USB_LD USB_LEDS_TRIGGER_USBPORT USB_LED_TRIG USB_LEGOTOWER USB_LGM_PHY USB_LIBCOMPOSITE USB_LINK_LAYER_TEST USB_LJCA USB_M5602 USB_MA901 USB_MAX3420_UDC USB_MAX3421_HCD USB_MDC800 USB_MICROTEK USB_MR800 USB_MSI2500 USB_MUSB_DUAL_ROLE USB_MUSB_HDRC USB_MV_U3D USB_MV_UDC USB_NET2272 USB_NET2272_DMA USB_NET2280 USB_NET_AQC111 USB_NET_AX88179_178A USB_NET_AX8817X USB_NET_CDCETHER USB_NET_CDC_EEM USB_NET_CDC_MBIM USB_NET_CDC_NCM USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_CH9200 USB_NET_CX82310_ETH USB_NET_DM9601 USB_NET_GL620A USB_NET_HUAWEI_CDC_NCM USB_NET_INT51X1 USB_NET_KALMIA USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_QMI_WWAN USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_OXU210HP_HCD USB_PEGASUS USB_PULSE8_CEC USB_PWC USB_PWC_INPUT_EVDEV USB_PXA27X USB_R8A66597 USB_R8A66597_HCD USB_RAINSHADOW_CEC USB_RAREMONO USB_RAW_GADGET USB_ROLE_SWITCH USB_RTL8150 USB_RTL8152 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_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_REALTEK USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_STV06XX USB_TEST USB_TMC USB_TRANCEVIBRATOR 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_PCI_RENESAS USB_XHCI_PLATFORM USB_XUSBATM USB_YUREX USERFAULTFD USERIO USERMODE_DRIVER USER_RETURN_NOTIFIER UVC_COMMON U_SERIAL_CONSOLE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VDPA_SIM VDPA_SIM_BLOCK VDPA_SIM_NET VETH VFIO VFIO_DEVICE_CDEV 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_TASK VHOST_VDPA VHOST_VSOCK VIDEO VIDEOBUF2_CORE VIDEOBUF2_DMA_CONTIG VIDEOBUF2_DMA_SG VIDEOBUF2_MEMOPS VIDEOBUF2_V4L2 VIDEOBUF2_VMALLOC VIDEOMODE_HELPERS VIDEO_AU0828 VIDEO_AU0828_RC VIDEO_AU0828_V4L2 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_TUNER VIDEO_TVEEPROM VIDEO_USBTV 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 VXLAN WANT_DEV_COREDUMP WEXT_CORE WEXT_PRIV WEXT_PROC WIREGUARD WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_PURELIFI WLAN_VENDOR_SILABS X86_SGX X86_SGX_KVM X86_USER_SHADOW_STACK X86_X2APIC X86_X32_ABI 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 XILLYBUS_CLASS XILLYUSB XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA Z3FOLD Z3FOLD_DEPRECATED ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZONE_DEVICE ZPOOL ZRAM ZRAM_BACKEND_FORCE_LZO ZRAM_BACKEND_LZO ZRAM_DEF_COMP_LZO ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_842 ZSWAP_DEFAULT_ON ZSWAP_SHRINKER_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_Z3FOLD_DEPRECATED] disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed picked [v6.11 v6.10 v6.9 v6.7 v6.5 v6.3 v6.1 v5.19 v5.16 v5.13 v5.10 v5.7 v5.4 v5.1 v4.19] out of 34 release tags 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: 335b2f4d25803c5e0b4a02cd6b06987108d0991a831ca89bc17e3feeb34bd86f all runs: OK false negative chance: 0.000 # git bisect start ccb35037c48a16dfa377e3af3be2c164e73d54f0 98f7e32f20d28ec452afb208f9cffc08448a2652 Bisecting: 7453 revisions left to test after this (roughly 13 steps) [171754c3808214d4fd8843eab584599a429deb52] Merge tag 'vfs-6.12.blocksize' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs testing commit 171754c3808214d4fd8843eab584599a429deb52 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6c223a629b82a20477d3e14486fa9d3adfea977d3174d93bf62735dc150d4903 all runs: crashed: WARNING in l2tp_exit_net representative crash: WARNING in l2tp_exit_net, types: [WARNING] # git bisect bad 171754c3808214d4fd8843eab584599a429deb52 Bisecting: 3730 revisions left to test after this (roughly 12 steps) [7b17f5ebd5fc5e9275eaa5af3d0771f2a7b01bbf] Merge tag 'soc-dt-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc testing commit 7b17f5ebd5fc5e9275eaa5af3d0771f2a7b01bbf gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cb3d61b2a3ba1e93bafff03e0b2fc4a7104bacdd6e9faa131e7aac6a5cdcccef all runs: crashed: WARNING in l2tp_exit_net representative crash: WARNING in l2tp_exit_net, types: [WARNING] # git bisect bad 7b17f5ebd5fc5e9275eaa5af3d0771f2a7b01bbf Bisecting: 1828 revisions left to test after this (roughly 11 steps) [64dd3b6a79f0907d36de481b0f15fab323a53e5a] Merge tag 'for-linus-non-x86' of git://git.kernel.org/pub/scm/virt/kvm/kvm testing commit 64dd3b6a79f0907d36de481b0f15fab323a53e5a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a138c6ea94a44926f00acec4b01f83d7ec28a1c57c38e8fcc83f8ffa8bcfb147 run #0: crashed: WARNING in l2tp_exit_net run #1: crashed: WARNING in l2tp_exit_net run #2: crashed: WARNING in l2tp_exit_net run #3: crashed: WARNING in l2tp_exit_net run #4: crashed: WARNING in l2tp_exit_net run #5: crashed: WARNING in l2tp_exit_net run #6: crashed: WARNING in l2tp_exit_net run #7: crashed: WARNING in l2tp_exit_net run #8: crashed: WARNING in l2tp_exit_net run #9: OK representative crash: WARNING in l2tp_exit_net, types: [WARNING] # git bisect bad 64dd3b6a79f0907d36de481b0f15fab323a53e5a Bisecting: 902 revisions left to test after this (roughly 10 steps) [e10034e38e9da2a644f2aa73f2f46bb7beb8620b] netlink: specs: nftables: allow decode of tailscale ruleset testing commit e10034e38e9da2a644f2aa73f2f46bb7beb8620b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fae0a19622a43dcf815201bfe321a161fa5fc698e9e7e3347c2369ba313ce3b7 run #0: crashed: WARNING in l2tp_exit_net run #1: crashed: WARNING in l2tp_exit_net run #2: crashed: WARNING in l2tp_exit_net run #3: crashed: WARNING in l2tp_exit_net run #4: crashed: WARNING in l2tp_exit_net run #5: crashed: WARNING in l2tp_exit_net run #6: crashed: WARNING in l2tp_exit_net run #7: crashed: WARNING in l2tp_exit_net run #8: crashed: WARNING in l2tp_exit_net run #9: OK representative crash: WARNING in l2tp_exit_net, types: [WARNING] # git bisect bad e10034e38e9da2a644f2aa73f2f46bb7beb8620b Bisecting: 447 revisions left to test after this (roughly 9 steps) [e540e3bcf2a26e02cf2d6295a38773c1e415e375] Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next testing commit e540e3bcf2a26e02cf2d6295a38773c1e415e375 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e62d6359d71b0e7a499c276641e1d6dec732183eee86667b1e7cb5bc4efaf0f2 all runs: OK false negative chance: 0.000 # git bisect good e540e3bcf2a26e02cf2d6295a38773c1e415e375 Bisecting: 223 revisions left to test after this (roughly 8 steps) [eb87a1daf6fb3b1ba8f19d94e243a638a844a7cc] octeontx2-pf: Remove setting of RX software timestamp testing commit eb87a1daf6fb3b1ba8f19d94e243a638a844a7cc gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 96e848bea336d0bd5cbf5ddd5c39fc4e4279bf5f738f5162294f9878aeff00db run #0: crashed: WARNING in l2tp_exit_net run #1: crashed: WARNING in l2tp_exit_net run #2: crashed: WARNING in l2tp_exit_net run #3: crashed: WARNING in l2tp_exit_net run #4: crashed: WARNING in l2tp_exit_net run #5: crashed: WARNING in l2tp_exit_net run #6: crashed: WARNING in l2tp_exit_net run #7: crashed: WARNING in l2tp_exit_net run #8: crashed: WARNING in l2tp_exit_net run #9: OK representative crash: WARNING in l2tp_exit_net, types: [WARNING] # git bisect bad eb87a1daf6fb3b1ba8f19d94e243a638a844a7cc Bisecting: 111 revisions left to test after this (roughly 7 steps) [9023fda2f186168e45bb8e7397ad15ff17fd7bf8] net: dsa: realtek: make use of dev_err_cast_probe() testing commit 9023fda2f186168e45bb8e7397ad15ff17fd7bf8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6aae4255a915bc4397a9f4ac4e902f3db05b9a431420badf8c5541149506d010 all runs: crashed: WARNING in l2tp_exit_net representative crash: WARNING in l2tp_exit_net, types: [WARNING] # git bisect bad 9023fda2f186168e45bb8e7397ad15ff17fd7bf8 Bisecting: 55 revisions left to test after this (roughly 6 steps) [299e2aefb159e83f920de79a85100aa4cefec740] dt-bindings: net: Add support for rk3576 dwmac testing commit 299e2aefb159e83f920de79a85100aa4cefec740 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8fdb9991dabba908dd7d6b7139c600131a2e770218a4b217b39f6e7e9b7fedd6 all runs: OK false negative chance: 0.000 # git bisect good 299e2aefb159e83f920de79a85100aa4cefec740 Bisecting: 29 revisions left to test after this (roughly 5 steps) [b3bc5341b04763c78e256503fc4a31019bb03f20] Merge branch 'net-dsa-microchip-add-ksz8895-ksz8864-switch-support' testing commit b3bc5341b04763c78e256503fc4a31019bb03f20 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 09ce7733cd158cd22c59464bd4d37ed3369460473936c1ae6ca9fe9d4397ac4a all runs: crashed: WARNING in l2tp_exit_net representative crash: WARNING in l2tp_exit_net, types: [WARNING] # git bisect bad b3bc5341b04763c78e256503fc4a31019bb03f20 Bisecting: 12 revisions left to test after this (roughly 4 steps) [9a4556862d1f0f4d3a77c5252a616e006a4c3432] net: thunderx: Remove unused declarations testing commit 9a4556862d1f0f4d3a77c5252a616e006a4c3432 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c4aa6629e58cf8538afddb41eaad9a12d17496e81c62b5d1f46d4f22e31ce236 run #0: crashed: WARNING in l2tp_exit_net run #1: crashed: WARNING in l2tp_exit_net run #2: crashed: WARNING in l2tp_exit_net run #3: crashed: WARNING in l2tp_exit_net run #4: crashed: WARNING in l2tp_exit_net run #5: crashed: WARNING in l2tp_exit_net run #6: crashed: WARNING in l2tp_exit_net run #7: crashed: WARNING in l2tp_exit_net run #8: crashed: WARNING in l2tp_exit_net run #9: OK representative crash: WARNING in l2tp_exit_net, types: [WARNING] # git bisect bad 9a4556862d1f0f4d3a77c5252a616e006a4c3432 Bisecting: 6 revisions left to test after this (roughly 3 steps) [bc2468f98221a194769cac80051da6b86cc39c2f] selftests/net: Be consistent in kconfig checks testing commit bc2468f98221a194769cac80051da6b86cc39c2f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 03fe3fe6e5999d643d5a90b84c0e47da3b32eba194ebbc7681f1997b0a944c9d all runs: crashed: WARNING in l2tp_exit_net representative crash: WARNING in l2tp_exit_net, types: [WARNING] # git bisect bad bc2468f98221a194769cac80051da6b86cc39c2f Bisecting: 2 revisions left to test after this (roughly 2 steps) [73d33bd063c4cfef3db17f9bec3d202928ed8631] l2tp: avoid using drain_workqueue in l2tp_pre_exit_net testing commit 73d33bd063c4cfef3db17f9bec3d202928ed8631 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c518c161ccb8c0b70beee38a6720de3f3373fa767f59e12d4d45b3c151e602bf all runs: crashed: WARNING in l2tp_exit_net representative crash: WARNING in l2tp_exit_net, types: [WARNING] # git bisect bad 73d33bd063c4cfef3db17f9bec3d202928ed8631 Bisecting: 0 revisions left to test after this (roughly 1 step) [aed7136a37148465dcc899b806584fe70fd4ae72] Merge branch 'add-gmac-support-for-rk3576' testing commit aed7136a37148465dcc899b806584fe70fd4ae72 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bbab38763282c56380bf30eebae7045b5793ee860fcf45ca870f083192103554 all runs: OK false negative chance: 0.000 # git bisect good aed7136a37148465dcc899b806584fe70fd4ae72 73d33bd063c4cfef3db17f9bec3d202928ed8631 is the first bad commit commit 73d33bd063c4cfef3db17f9bec3d202928ed8631 Author: James Chapman Date: Fri Aug 23 15:22:57 2024 +0100 l2tp: avoid using drain_workqueue in l2tp_pre_exit_net Recent commit fc7ec7f554d7 ("l2tp: delete sessions using work queue") incorrectly uses drain_workqueue. The use of drain_workqueue in l2tp_pre_exit_net is flawed because the workqueue is shared by all nets and it is therefore possible for new work items to be queued for other nets while drain_workqueue runs. Instead of using drain_workqueue, use __flush_workqueue twice. The first one will run all tunnel delete work items and any work already queued. When tunnel delete work items are run, they may queue new session delete work items, which the second __flush_workqueue will run. In l2tp_exit_net, warn if any of the net's idr lists are not empty. Fixes: fc7ec7f554d7 ("l2tp: delete sessions using work queue") Signed-off-by: James Chapman Link: https://patch.msgid.link/20240823142257.692667-1-jchapman@katalix.com Signed-off-by: Jakub Kicinski net/l2tp/l2tp_core.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) accumulated error probability: 0.00 culprit signature: c518c161ccb8c0b70beee38a6720de3f3373fa767f59e12d4d45b3c151e602bf parent signature: bbab38763282c56380bf30eebae7045b5793ee860fcf45ca870f083192103554 revisions tested: 20, total time: 8h10m40.30891337s (build: 5h6m23.599643271s, test: 2h50m31.496325012s) first bad commit: 73d33bd063c4cfef3db17f9bec3d202928ed8631 l2tp: avoid using drain_workqueue in l2tp_pre_exit_net recipients (to): ["davem@davemloft.net" "edumazet@google.com" "jchapman@katalix.com" "kuba@kernel.org" "kuba@kernel.org" "netdev@vger.kernel.org" "pabeni@redhat.com"] recipients (cc): ["jchapman@katalix.com" "linux-kernel@vger.kernel.org" "tparkin@katalix.com"] crash: WARNING in l2tp_exit_net ------------[ cut here ]------------ WARNING: CPU: 1 PID: 2397 at net/l2tp/l2tp_core.c:1881 l2tp_exit_net+0xe2/0xf0 net/l2tp/l2tp_core.c:1881 Modules linked in: CPU: 1 UID: 0 PID: 2397 Comm: kworker/u8:6 Not tainted 6.11.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 Workqueue: netns cleanup_net RIP: 0010:l2tp_exit_net+0xe2/0xf0 net/l2tp/l2tp_core.c:1881 Code: 75 27 4c 89 f7 31 f6 e8 cc ce 25 00 85 c0 74 19 4c 89 f7 5b 41 5e 41 5f e9 9b d4 25 00 90 0f 0b 90 eb a2 90 0f 0b 90 eb c3 90 <0f> 0b 90 eb e1 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 RSP: 0018:ffffc900094a3d80 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88810dc9c400 RCX: 000000000000001a RDX: 54b62d207d651a57 RSI: 0000000000000000 RDI: ffff88810dc9c530 RBP: ffff8881159f1b28 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffc900094a3db8 R13: ffffffff8118c207 R14: ffff88810dc9c440 R15: ffffffff82cda35e FS: 0000000000000000(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f78ca3b6440 CR3: 000000010d160000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ops_exit_list net/core/net_namespace.c:173 [inline] cleanup_net+0x2f4/0x460 net/core/net_namespace.c:626 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0x2e7/0x6b0 kernel/workqueue.c:3312 worker_thread+0x212/0x2e0 kernel/workqueue.c:3390 kthread+0xf5/0x110 kernel/kthread.c:389 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244