ci starts bisection 2023-11-13 01:26:22.118996174 +0000 UTC m=+174107.949160455 bisecting cause commit starting from 3ca112b71f35dd5d99fc4571a56b5fc6f0c15814 building syzkaller on 6d6dbf8ab21a52df701946afac2a86f93a88fdc8 ensuring issue is reproducible on original commit 3ca112b71f35dd5d99fc4571a56b5fc6f0c15814 testing commit 3ca112b71f35dd5d99fc4571a56b5fc6f0c15814 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 75b4d487e1f42462ce4e3e1e2ddfc7092cd62e38d7d9983229decdd0e436fca2 all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, 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 3ca112b71f35dd5d99fc4571a56b5fc6f0c15814 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bd703929c2ade83207c814fc8084afeb62fe2f271ce7e8f777f1818e6e88add4 all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, 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=3938 full=7657 leaves diff=1996 split chunks (needed=false): <1996> split chunk #0 of len 1996 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 3ca112b71f35dd5d99fc4571a56b5fc6f0c15814 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 404dcdc3195e387513bae8251d162561085d5d023d1a53c97390da0b76141864 all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 3ca112b71f35dd5d99fc4571a56b5fc6f0c15814 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 30ec6d8d55c356a2538524ee89d82ea7dfc56228c230571fe3365cdc417a1a8d all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 3ca112b71f35dd5d99fc4571a56b5fc6f0c15814 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2532b9c2a2d00bf4e2db823eecd05ecfd87d911e7c90488cc3879e12378908bb all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 3ca112b71f35dd5d99fc4571a56b5fc6f0c15814 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 77fe978b1c76c6ab2e7d029e732576275e93208d4dd74c2b54a3eacb57012395 all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 3ca112b71f35dd5d99fc4571a56b5fc6f0c15814 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5bb5914a737759ab27224533762d56a874daad8956aa657df10d61c83a64328b all runs: OK false negative chance: 0.000 minimized to 796 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ATM AX25 BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CMA COMMON_CLK CONTIG_ALLOC CRYPTO_842 CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_LZO CRYPTO_ZSTD DAX DLM DVB_CORE ENCRYPTED_KEYS EXTCON FB GENEVE GPIOLIB HAMRADIO HAVE_CLK HID_SENSOR_HUB HID_SMARTJOYPLUS HID_THRUSTMASTER HID_ZEROPLUS I2C_MUX IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN IOMMUFD IP_SCTP IRQ_REMAP KVM KVM_INTEL L2TP LIBNVDIMM MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_COMMON_OPTIONS MEDIA_CONTROLLER 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_RETU MFD_VIPERBOARD MMC MTD MTD_UBI NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 NF_TPROXY_IPV6 NILFS2_FS NLMON NLS_CODEPAGE_1250 NLS_CODEPAGE_1251 NLS_CODEPAGE_737 NLS_CODEPAGE_775 NLS_CODEPAGE_850 NLS_CODEPAGE_852 NLS_CODEPAGE_855 NLS_CODEPAGE_857 NLS_CODEPAGE_860 NLS_CODEPAGE_861 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 NTFS_FS NTFS_RW NULL_TTY NUMA_BALANCING NUMA_BALANCING_DEFAULT_ENABLED NUMA_EMU NUMA_KEEP_MEMINFO NVDIMM_DAX NVDIMM_KEYS NVDIMM_PFN 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 PADATA PAGE_IDLE_FLAG PAGE_POOL PAGE_REPORTING 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 PM_CLK PNFS_BLOCK PNFS_FILE_LAYOUT PNFS_FLEXFILE_LAYOUT PPP PPPOATM PPPOE PPPOE_HASH_BITS_4 PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPT_NOTIFIERS PRISM2_USB PROC_CHILDREN PSI PSTORE PSTORE_COMPRESS QCOM_QMI_HELPERS QNX4FS_FS QNX6FS_FS QRTR QRTR_TUN R8712U RADIO_ADAPTERS RADIO_SHARK RADIO_SHARK2 RADIO_SI470X RADIO_SI4713 RADIO_TEA575X RAID_ATTRS RC_ATI_REMOTE RC_CORE RC_DEVICES 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 REGULATOR 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 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 SERIAL_DEV_BUS SERIAL_DEV_CTRL_TTYPORT SERIAL_MCTRL_GPIO SGI_PARTITION SIGNATURE SIGNED_PE_FILE_VERIFICATION SLHC SLIP SLIP_COMPRESSED SLIP_MODE_SLIP6 SLIP_SMART SMARTJOYPLUS_FF SMBFS SMC SMC_DIAG SMSC_PHY 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_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_VIRMIDI SND_SUPPORT_OLD_API SND_TIMER SND_USB SND_USB_6FIRE SND_USB_AUDIO 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 SOUND_OSS_CORE SOUND_OSS_CORE_PRECLAIM SPI SPI_DLN2 SPI_DYNAMIC SPI_MASTER SQUASHFS SQUASHFS_4K_DEVBLK_SIZE SQUASHFS_COMPILE_DECOMP_SINGLE SQUASHFS_DECOMP_SINGLE 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 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 TCP_SIGPOOL 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_FUSB302 TYPEC_TCPCI TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI 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 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_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_HOST 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_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_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_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI USB_DYNAMIC_MINORS USB_EG20T 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_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_GPIO_VBUS 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_LIBCOMPOSITE USB_LINK_LAYER_TEST USB_M5602 USB_MA901 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_AX88179_178A USB_NET_AX8817X USB_NET_CDCETHER USB_NET_CDC_EEM USB_NET_CDC_MBIM USB_NET_CDC_NCM 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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_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 VDPA_USER 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 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_CMDLINE 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_NOMODESET 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 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 YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZEROPLUS_FF ZONEFS_FS ZONE_DEVICE ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZSMALLOC] disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed picked [v6.6 v6.5 v6.4 v6.2 v6.0 v5.18 v5.16 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 29 release tags testing release v6.6 testing commit ffc253263a1375a65fa6c9f62a893e9767fbebfa gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f3861e1f367197edef80c610dc03ebbdb0ba2623d4fe5f8e308cf6806b88610b all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] testing release v6.5 testing commit 2dde18cd1d8fac735875f2e4987f11817cc0bc2c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b46b70a781f15e00423b808ee06fb139bec919c7dea2e75f2d4a292ebada05f1 all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] testing release v6.4 testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 25f4275cfbb836071efe0fd44ca1c51277609cdc2829bc3ab50ed75b90b870ff all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] testing release v6.2 testing commit c9c3395d5e3dcc6daee66c6908354d47bf98cb0c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 48b8d19af96244516e618b6d6c08c2f94747e75acc45a1f84c4b9f279df87590 all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] testing release v6.0 testing commit 4fe89d07dcc2804c8b562f6c7896a45643d34b2f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a8c06316f3c24af77308ffe69fe1880ffe6202443ac9584c6945822e72222388 all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] testing release v5.18 testing commit 4b0986a3613c92f4ec1bdc7f60ec66fea135991f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9a407d993f72eb92cb3183a71179dee8e5625f7f61341affd6ebf55b4ae95d7f all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] testing release v5.16 testing commit df0cc57e057f18e44dac8e6c18aba47ab53202f9 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c120bfd073d6133d245618cb6c82b7fa9dbd33c7918971f162e83672926cbf18 all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] testing release v5.14 testing commit 7d2a07b769330c34b4deabeed939325c77a7ec2f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0b5beabdc4aa5cdb566e79ebdca4a07442c077e9e7e1bc2079e7eb882b15c7ef all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] testing release v5.11 testing commit f40ddce88593482919761f74910f42f4b84c004b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3d4ed1ada25a07fbaccdd2efad55443c92501b76ed6c0fd6b289f41330dd0ef5 all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] testing release v5.8 testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c gcc compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 893beb6c22a5a9179d3e7502212a989321d436f446dcf0b3432542600ce51ca7 all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] testing release v5.5 testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 51d1809e6774a89539338a39b3a33d55fde3b17a218bc9a5ee5332ea0c0802fe all runs: OK false negative chance: 0.000 # git bisect start bcf876870b95592b52519ed4aafcf9d95999bc9c d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 Bisecting: 23175 revisions left to test after this (roughly 15 steps) [a943353d170e286dd3d877ac5aa15c1034cdfefc] Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm testing commit a943353d170e286dd3d877ac5aa15c1034cdfefc gcc compiler: gcc version 8.4.1 20210217 (GCC) failed building a943353d170e286dd3d877ac5aa15c1034cdfefc: scripts/extract-cert.c:46:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations] scripts/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations] scripts/sign-file.c:89:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations] scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations] # git bisect skip a943353d170e286dd3d877ac5aa15c1034cdfefc Bisecting: 23153 revisions left to test after this (roughly 15 steps) [d8836005236425cf3cfcc8967abd1d5c21f607f8] Merge branch 'for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup testing commit d8836005236425cf3cfcc8967abd1d5c21f607f8 gcc compiler: gcc version 8.4.1 20210217 (GCC) failed building d8836005236425cf3cfcc8967abd1d5c21f607f8: scripts/extract-cert.c:46:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations] scripts/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations] scripts/sign-file.c:89:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations] scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations] # git bisect skip d8836005236425cf3cfcc8967abd1d5c21f607f8 Bisecting: 23153 revisions left to test after this (roughly 15 steps) [05a5a7621ce66c142e081ffc24dd6ade6e912061] Btrfs: implement full reflink support for inline extents testing commit 05a5a7621ce66c142e081ffc24dd6ade6e912061 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: ae3e760831b64d9cc68aa174a99b93b9828b4c60a5d3058d384335e81f10e493 all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] # git bisect bad 05a5a7621ce66c142e081ffc24dd6ade6e912061 Bisecting: 5947 revisions left to test after this (roughly 13 steps) [9f68e3655aae6d49d6ba05dd263f99f33c2567af] Merge tag 'drm-next-2020-01-30' of git://anongit.freedesktop.org/drm/drm testing commit 9f68e3655aae6d49d6ba05dd263f99f33c2567af gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 48fc3cd9b5f651e27d8b4c105d12de6a2bb05503f17cb57dd09027cfe158896f all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] # git bisect bad 9f68e3655aae6d49d6ba05dd263f99f33c2567af Bisecting: 3686 revisions left to test after this (roughly 12 steps) [fb95aae6e67c4e319a24b3eea32032d4246a5335] Merge tag 'sound-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound testing commit fb95aae6e67c4e319a24b3eea32032d4246a5335 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 30bd86c10775986d1323e465343dc31e61062af2a835240d1a3608efa8dbc9f3 all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] # git bisect bad fb95aae6e67c4e319a24b3eea32032d4246a5335 Bisecting: 2267 revisions left to test after this (roughly 11 steps) [f76e4c167ea2212e23c15ee7e601a865e822c291] net: phy: add default ARCH_BCM_IPROC for MDIO_BCM_IPROC testing commit f76e4c167ea2212e23c15ee7e601a865e822c291 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 141e9749c739ec75f3d2be168c7227aa4e959bf2a1d41a661592c4a7fb1514b3 all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] # git bisect bad f76e4c167ea2212e23c15ee7e601a865e822c291 Bisecting: 810 revisions left to test after this (roughly 10 steps) [82c64484024af04489bb1870bd1c6b61c603ca78] sfc: move reset workqueue code testing commit 82c64484024af04489bb1870bd1c6b61c603ca78 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 5b9225451af619165aa4d8c090fed0ff75e43ea716a94ad525a67c33ce52326d all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] # git bisect bad 82c64484024af04489bb1870bd1c6b61c603ca78 Bisecting: 404 revisions left to test after this (roughly 9 steps) [9f6cff995e98258b6b81cc864532f633e5b3a081] Merge branch 'Simplify-IPv6-route-offload-API' testing commit 9f6cff995e98258b6b81cc864532f633e5b3a081 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 924f97d6f6da21c6a494824d23607b791ecd4b5a9f6a2b8b28186ec363fc00cc all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] # git bisect bad 9f6cff995e98258b6b81cc864532f633e5b3a081 Bisecting: 202 revisions left to test after this (roughly 8 steps) [206f54b66cbf6f71e9e86f50f60ffdf7f565c3b7] net: bcmgenet: Utilize bcmgenet_set_features() during resume/open testing commit 206f54b66cbf6f71e9e86f50f60ffdf7f565c3b7 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: ff2aea23887d01a64c45986e18885bb77b656292b22121dd7b37a1752d3fe565 all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] # git bisect bad 206f54b66cbf6f71e9e86f50f60ffdf7f565c3b7 Bisecting: 101 revisions left to test after this (roughly 7 steps) [a8674f753e36f566d6c1d992ab85323d784281d9] ipv4: Notify newly added route if should be offloaded testing commit a8674f753e36f566d6c1d992ab85323d784281d9 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: cc5989901f66374a8d3020406e958c7e9d5d33816a00532d03d3a4d9795ee78e all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] # git bisect bad a8674f753e36f566d6c1d992ab85323d784281d9 Bisecting: 50 revisions left to test after this (roughly 6 steps) [1cb89a14c80a87abe1f5bd47b1e7b3171b968f8c] net: sfp: re-attempt probing for phy testing commit 1cb89a14c80a87abe1f5bd47b1e7b3171b968f8c gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: c0444362e360daf931735fa410015873e20c803c343f38167fdaca13dd086d24 all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] # git bisect bad 1cb89a14c80a87abe1f5bd47b1e7b3171b968f8c Bisecting: 24 revisions left to test after this (roughly 5 steps) [16ad3f4022bb53c7541a0bf0410b32d0231ebef9] tipc: introduce variable window congestion control testing commit 16ad3f4022bb53c7541a0bf0410b32d0231ebef9 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: bd243331b793107288f36b8c73360562159171d134f2c8d6d092cac536f867d9 all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] # git bisect bad 16ad3f4022bb53c7541a0bf0410b32d0231ebef9 Bisecting: 12 revisions left to test after this (roughly 4 steps) [718eae277e62a26e5862eb72a830b5e0fe37b04a] NFC: port100: Convert cpu_to_le16(le16_to_cpu(E1) + E2) to use le16_add_cpu(). testing commit 718eae277e62a26e5862eb72a830b5e0fe37b04a gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 6b2f0e6a922dc0050fae021f275b9ecd5efb5f9060abf2559074289e37bdb536 all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] # git bisect bad 718eae277e62a26e5862eb72a830b5e0fe37b04a Bisecting: 5 revisions left to test after this (roughly 3 steps) [3cd9d35ee5f7a23203443f1a0d3c344f034c0dc7] dt-bindings: net: bluetooth: Minor fix in broadcom-bluetooth testing commit 3cd9d35ee5f7a23203443f1a0d3c344f034c0dc7 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 25ac069449bd12b5c342992d26139fef5aececde90066b415ece32ec55c0ac99 all runs: OK false negative chance: 0.000 # git bisect good 3cd9d35ee5f7a23203443f1a0d3c344f034c0dc7 Bisecting: 2 revisions left to test after this (roughly 2 steps) [7ecacafc240638148567742cca41aa7144b4fe1e] Bluetooth: btusb: Disable runtime suspend on Realtek devices testing commit 7ecacafc240638148567742cca41aa7144b4fe1e gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 25ac069449bd12b5c342992d26139fef5aececde90066b415ece32ec55c0ac99 all runs: OK false negative chance: 0.000 # git bisect good 7ecacafc240638148567742cca41aa7144b4fe1e Bisecting: 0 revisions left to test after this (roughly 1 step) [4a63ef710cc3e79ce58b46b122118e415a44b3db] Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next testing commit 4a63ef710cc3e79ce58b46b122118e415a44b3db gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 6b2f0e6a922dc0050fae021f275b9ecd5efb5f9060abf2559074289e37bdb536 all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] # git bisect bad 4a63ef710cc3e79ce58b46b122118e415a44b3db Bisecting: 0 revisions left to test after this (roughly 0 steps) [e7096c131e5161fa3b8e52a650d7719d2857adfd] net: WireGuard secure network tunnel testing commit e7096c131e5161fa3b8e52a650d7719d2857adfd gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 6b2f0e6a922dc0050fae021f275b9ecd5efb5f9060abf2559074289e37bdb536 all runs: crashed: WARNING in __alloc_skb representative crash: WARNING in __alloc_skb, types: [WARNING] # git bisect bad e7096c131e5161fa3b8e52a650d7719d2857adfd e7096c131e5161fa3b8e52a650d7719d2857adfd is the first bad commit commit e7096c131e5161fa3b8e52a650d7719d2857adfd Author: Jason A. Donenfeld Date: Mon Dec 9 00:27:34 2019 +0100 net: WireGuard secure network tunnel WireGuard is a layer 3 secure networking tunnel made specifically for the kernel, that aims to be much simpler and easier to audit than IPsec. Extensive documentation and description of the protocol and considerations, along with formal proofs of the cryptography, are available at: * https://www.wireguard.com/ * https://www.wireguard.com/papers/wireguard.pdf This commit implements WireGuard as a simple network device driver, accessible in the usual RTNL way used by virtual network drivers. It makes use of the udp_tunnel APIs, GRO, GSO, NAPI, and the usual set of networking subsystem APIs. It has a somewhat novel multicore queueing system designed for maximum throughput and minimal latency of encryption operations, but it is implemented modestly using workqueues and NAPI. Configuration is done via generic Netlink, and following a review from the Netlink maintainer a year ago, several high profile userspace tools have already implemented the API. This commit also comes with several different tests, both in-kernel tests and out-of-kernel tests based on network namespaces, taking profit of the fact that sockets used by WireGuard intentionally stay in the namespace the WireGuard interface was originally created, exactly like the semantics of userspace tun devices. See wireguard.com/netns/ for pictures and examples. The source code is fairly short, but rather than combining everything into a single file, WireGuard is developed as cleanly separable files, making auditing and comprehension easier. Things are laid out as follows: * noise.[ch], cookie.[ch], messages.h: These implement the bulk of the cryptographic aspects of the protocol, and are mostly data-only in nature, taking in buffers of bytes and spitting out buffers of bytes. They also handle reference counting for their various shared pieces of data, like keys and key lists. * ratelimiter.[ch]: Used as an integral part of cookie.[ch] for ratelimiting certain types of cryptographic operations in accordance with particular WireGuard semantics. * allowedips.[ch], peerlookup.[ch]: The main lookup structures of WireGuard, the former being trie-like with particular semantics, an integral part of the design of the protocol, and the latter just being nice helper functions around the various hashtables we use. * device.[ch]: Implementation of functions for the netdevice and for rtnl, responsible for maintaining the life of a given interface and wiring it up to the rest of WireGuard. * peer.[ch]: Each interface has a list of peers, with helper functions available here for creation, destruction, and reference counting. * socket.[ch]: Implementation of functions related to udp_socket and the general set of kernel socket APIs, for sending and receiving ciphertext UDP packets, and taking care of WireGuard-specific sticky socket routing semantics for the automatic roaming. * netlink.[ch]: Userspace API entry point for configuring WireGuard peers and devices. The API has been implemented by several userspace tools and network management utility, and the WireGuard project distributes the basic wg(8) tool. * queueing.[ch]: Shared function on the rx and tx path for handling the various queues used in the multicore algorithms. * send.c: Handles encrypting outgoing packets in parallel on multiple cores, before sending them in order on a single core, via workqueues and ring buffers. Also handles sending handshake and cookie messages as part of the protocol, in parallel. * receive.c: Handles decrypting incoming packets in parallel on multiple cores, before passing them off in order to be ingested via the rest of the networking subsystem with GRO via the typical NAPI poll function. Also handles receiving handshake and cookie messages as part of the protocol, in parallel. * timers.[ch]: Uses the timer wheel to implement protocol particular event timeouts, and gives a set of very simple event-driven entry point functions for callers. * main.c, version.h: Initialization and deinitialization of the module. * selftest/*.h: Runtime unit tests for some of the most security sensitive functions. * tools/testing/selftests/wireguard/netns.sh: Aforementioned testing script using network namespaces. This commit aims to be as self-contained as possible, implementing WireGuard as a standalone module not needing much special handling or coordination from the network subsystem. I expect for future optimizations to the network stack to positively improve WireGuard, and vice-versa, but for the time being, this exists as intentionally standalone. We introduce a menu option for CONFIG_WIREGUARD, as well as providing a verbose debug log and self-tests via CONFIG_WIREGUARD_DEBUG. Signed-off-by: Jason A. Donenfeld Cc: David Miller Cc: Greg KH Cc: Linus Torvalds Cc: Herbert Xu Cc: linux-crypto@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller MAINTAINERS | 8 + drivers/net/Kconfig | 41 ++ drivers/net/Makefile | 1 + drivers/net/wireguard/Makefile | 18 + drivers/net/wireguard/allowedips.c | 381 ++++++++++++ drivers/net/wireguard/allowedips.h | 59 ++ drivers/net/wireguard/cookie.c | 236 ++++++++ drivers/net/wireguard/cookie.h | 59 ++ drivers/net/wireguard/device.c | 458 +++++++++++++++ drivers/net/wireguard/device.h | 73 +++ drivers/net/wireguard/main.c | 64 +++ drivers/net/wireguard/messages.h | 128 +++++ drivers/net/wireguard/netlink.c | 642 +++++++++++++++++++++ drivers/net/wireguard/netlink.h | 12 + drivers/net/wireguard/noise.c | 828 +++++++++++++++++++++++++++ drivers/net/wireguard/noise.h | 137 +++++ drivers/net/wireguard/peer.c | 240 ++++++++ drivers/net/wireguard/peer.h | 83 +++ drivers/net/wireguard/peerlookup.c | 221 +++++++ drivers/net/wireguard/peerlookup.h | 64 +++ drivers/net/wireguard/queueing.c | 53 ++ drivers/net/wireguard/queueing.h | 197 +++++++ drivers/net/wireguard/ratelimiter.c | 223 ++++++++ drivers/net/wireguard/ratelimiter.h | 19 + drivers/net/wireguard/receive.c | 595 +++++++++++++++++++ drivers/net/wireguard/selftest/allowedips.c | 683 ++++++++++++++++++++++ drivers/net/wireguard/selftest/counter.c | 104 ++++ drivers/net/wireguard/selftest/ratelimiter.c | 226 ++++++++ drivers/net/wireguard/send.c | 413 +++++++++++++ drivers/net/wireguard/socket.c | 437 ++++++++++++++ drivers/net/wireguard/socket.h | 44 ++ drivers/net/wireguard/timers.c | 243 ++++++++ drivers/net/wireguard/timers.h | 31 + drivers/net/wireguard/version.h | 1 + include/uapi/linux/wireguard.h | 196 +++++++ tools/testing/selftests/wireguard/netns.sh | 537 +++++++++++++++++ 36 files changed, 7755 insertions(+) create mode 100644 drivers/net/wireguard/Makefile create mode 100644 drivers/net/wireguard/allowedips.c create mode 100644 drivers/net/wireguard/allowedips.h create mode 100644 drivers/net/wireguard/cookie.c create mode 100644 drivers/net/wireguard/cookie.h create mode 100644 drivers/net/wireguard/device.c create mode 100644 drivers/net/wireguard/device.h create mode 100644 drivers/net/wireguard/main.c create mode 100644 drivers/net/wireguard/messages.h create mode 100644 drivers/net/wireguard/netlink.c create mode 100644 drivers/net/wireguard/netlink.h create mode 100644 drivers/net/wireguard/noise.c create mode 100644 drivers/net/wireguard/noise.h create mode 100644 drivers/net/wireguard/peer.c create mode 100644 drivers/net/wireguard/peer.h create mode 100644 drivers/net/wireguard/peerlookup.c create mode 100644 drivers/net/wireguard/peerlookup.h create mode 100644 drivers/net/wireguard/queueing.c create mode 100644 drivers/net/wireguard/queueing.h create mode 100644 drivers/net/wireguard/ratelimiter.c create mode 100644 drivers/net/wireguard/ratelimiter.h create mode 100644 drivers/net/wireguard/receive.c create mode 100644 drivers/net/wireguard/selftest/allowedips.c create mode 100644 drivers/net/wireguard/selftest/counter.c create mode 100644 drivers/net/wireguard/selftest/ratelimiter.c create mode 100644 drivers/net/wireguard/send.c create mode 100644 drivers/net/wireguard/socket.c create mode 100644 drivers/net/wireguard/socket.h create mode 100644 drivers/net/wireguard/timers.c create mode 100644 drivers/net/wireguard/timers.h create mode 100644 drivers/net/wireguard/version.h create mode 100644 include/uapi/linux/wireguard.h create mode 100755 tools/testing/selftests/wireguard/netns.sh accumulated error probability: 0.00 parent commit e42617b825f8073569da76dc4510bfa019b1c35a wasn't tested testing commit e42617b825f8073569da76dc4510bfa019b1c35a gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: a7c9193ef676ab288ae92406f2df7958fe19e9a6d5bdd8c473b664f17d20e8d8 culprit signature: 6b2f0e6a922dc0050fae021f275b9ecd5efb5f9060abf2559074289e37bdb536 parent signature: a7c9193ef676ab288ae92406f2df7958fe19e9a6d5bdd8c473b664f17d20e8d8 revisions tested: 33, total time: 11h51m49.253396753s (build: 5h44m48.532322364s, test: 5h47m40.101421579s) first bad commit: e7096c131e5161fa3b8e52a650d7719d2857adfd net: WireGuard secure network tunnel recipients (to): ["davem@davemloft.net" "jason@zx2c4.com" "linux-kselftest@vger.kernel.org" "netdev@vger.kernel.org" "shuah@kernel.org"] recipients (cc): ["davem@davemloft.net" "linux-kernel@vger.kernel.org"] crash: WARNING in __alloc_skb ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7 at mm/page_alloc.c:4738 __alloc_pages_nodemask+0x342/0x3f0 mm/page_alloc.c:4738 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 5.5.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 Workqueue: events_unbound flush_to_ldisc Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x50/0x70 lib/dump_stack.c:118 panic+0xfd/0x2ba kernel/panic.c:221 __warn.cold.12+0x20/0x21 kernel/panic.c:582 report_bug+0xb8/0x100 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:174 [inline] fixup_bug arch/x86/kernel/traps.c:169 [inline] do_error_trap+0x9a/0xc0 arch/x86/kernel/traps.c:267 do_invalid_op+0x31/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x28/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:__alloc_pages_nodemask+0x342/0x3f0 mm/page_alloc.c:4738 Code: 7e 0f 85 83 fe ff ff e8 b8 6a d7 ff e9 79 fe ff ff 48 89 c7 e8 af 19 fc ff e9 03 fe ff ff 81 e7 00 20 00 00 0f 85 35 ff ff ff <0f> 0b e9 2e ff ff ff 0f 0b 0f 0b e9 6d fd ff ff 65 48 8b 04 25 40 RSP: 0018:ffffc90000c8bc40 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000013 RDI: 0000000000000000 RBP: 0000000000000013 R08: 00000000000a2a20 R09: 00000000ffffffff R10: ffff88813b323988 R11: ffff88813b323080 R12: 0000000000020a20 R13: 000000005e641940 R14: 00000000ffffffff R15: 00000000ffffffff __alloc_pages include/linux/gfp.h:496 [inline] __alloc_pages_node include/linux/gfp.h:509 [inline] alloc_pages_node include/linux/gfp.h:523 [inline] kmalloc_large_node+0x37/0xd0 mm/slub.c:3817 __kmalloc_node_track_caller+0x1f7/0x260 mm/slub.c:4351 __kmalloc_reserve.isra.54+0x6a/0x70 net/core/skbuff.c:149 __alloc_skb+0x7d/0x1d0 net/core/skbuff.c:209 __netdev_alloc_skb+0x33/0x150 net/core/skbuff.c:436 netdev_alloc_skb include/linux/skbuff.h:2781 [inline] dev_alloc_skb include/linux/skbuff.h:2794 [inline] ppp_sync_input drivers/net/ppp/ppp_synctty.c:680 [inline] ppp_sync_receive+0x70/0x1e0 drivers/net/ppp/ppp_synctty.c:343 tty_ldisc_receive_buf+0x36/0x40 drivers/tty/tty_buffer.c:465 tty_port_default_receive_buf+0x39/0x60 drivers/tty/tty_port.c:38 receive_buf drivers/tty/tty_buffer.c:481 [inline] flush_to_ldisc+0x81/0xc0 drivers/tty/tty_buffer.c:533 process_one_work+0x282/0x550 kernel/workqueue.c:2264 worker_thread+0x2b/0x380 kernel/workqueue.c:2410 kthread+0x10c/0x130 kernel/kthread.c:255 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds..