ci starts bisection 2024-12-27 17:15:15.794177192 +0000 UTC m=+101304.699063770 bisecting cause commit starting from d6ef8b40d075c425f548002d2f35ae3f06e9cf96 building syzkaller on d3ccff6372e07c6aabd02b5da419aa6492b5f0ad ensuring issue is reproducible on original commit d6ef8b40d075c425f548002d2f35ae3f06e9cf96 testing commit d6ef8b40d075c425f548002d2f35ae3f06e9cf96 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 874d2a49f80b18a40061b625da584c09a704180ee7346847c20fcfef923d0ccd all runs: crashed: kernel BUG in vlan_get_protocol_dgram representative crash: kernel BUG in vlan_get_protocol_dgram, types: [BUG] check whether we can drop unnecessary instrumentation disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit d6ef8b40d075c425f548002d2f35ae3f06e9cf96 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e9e771eb0db6e4678ed0cc0ad977ccd48c960b3bc541c911a06318a14e86ba35 all runs: crashed: kernel BUG in vlan_get_protocol_dgram representative crash: kernel BUG in vlan_get_protocol_dgram, types: [BUG] the bug reproduces without the instrumentation disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], 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 d6ef8b40d075c425f548002d2f35ae3f06e9cf96 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3a1596e61caa50d9f4cb1637feb69cf799acf15d3da13a23df2de682382e0b3d all runs: crashed: kernel BUG in vlan_get_protocol_dgram representative crash: kernel BUG in vlan_get_protocol_dgram, types: [BUG] 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 d6ef8b40d075c425f548002d2f35ae3f06e9cf96 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building d6ef8b40d075c425f548002d2f35ae3f06e9cf96: 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 [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit d6ef8b40d075c425f548002d2f35ae3f06e9cf96 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 030d296f8b1b1f527dddd78856e6df3d9b64c3926c4345acda5d3616834e77cf all runs: crashed: kernel BUG in vlan_get_protocol_dgram representative crash: kernel BUG in vlan_get_protocol_dgram, types: [BUG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit d6ef8b40d075c425f548002d2f35ae3f06e9cf96 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b82fe49c276bd2e5066dc394097feabb156e10acd81c2d90e4436ca7d6c37117 all runs: crashed: kernel BUG in vlan_get_protocol_dgram representative crash: kernel BUG in vlan_get_protocol_dgram, types: [BUG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit d6ef8b40d075c425f548002d2f35ae3f06e9cf96 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4238366c1ecda00c2a82edede1d5ee83ea5481d56b5a863c9946f8dd81b929a2 all runs: crashed: kernel BUG in vlan_get_protocol_dgram representative crash: kernel BUG in vlan_get_protocol_dgram, types: [BUG] 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 [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], 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: dd1b9f508dca103e710672445de353b443569dc68c954a0ada4039de2b33a908 all runs: crashed: kernel BUG in vlan_get_protocol_dgram representative crash: kernel BUG in vlan_get_protocol_dgram, types: [BUG] 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: 7e1765efb8894ce09782674ef9d13d12e8ffca05ed2e0b6e4569937edba41bdd all runs: crashed: kernel BUG in vlan_get_protocol_dgram representative crash: kernel BUG in vlan_get_protocol_dgram, types: [BUG] 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: 8bbcdbcf3be7b5d6de48468459cbb67b3beed9187da50fb9ff77609d6552f1aa 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: fc3b4b46b39a45f00dd3f79bc13b1747bce8f6478a8f7a4fc926a4e145ccd9b9 all runs: crashed: kernel BUG in vlan_get_protocol_dgram representative crash: kernel BUG in vlan_get_protocol_dgram, types: [BUG] # git bisect bad b3ce7a30847a54a7f96a35e609303d8afecd460b Bisecting: 3572 revisions left to test after this (roughly 12 steps) [51835949dda3783d4639cfa74ce13a3c9829de00] Merge tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next testing commit 51835949dda3783d4639cfa74ce13a3c9829de00 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5bc7914104629dc176f87cc9f693dc0bf5c9fc39244c453cf39ad354c24f7c5e all runs: crashed: kernel BUG in vlan_get_protocol_dgram representative crash: kernel BUG in vlan_get_protocol_dgram, types: [BUG] # git bisect bad 51835949dda3783d4639cfa74ce13a3c9829de00 Bisecting: 2238 revisions left to test after this (roughly 11 steps) [e3950967f6e6b74a3606739ec50ed19f3398c7d8] Merge tag 'soc-dt-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc testing commit e3950967f6e6b74a3606739ec50ed19f3398c7d8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0d580a27ebb6b283b7b6fb56da17086170334b2b2787c7a87340831f2640f8c5 all runs: OK false negative chance: 0.000 # git bisect good e3950967f6e6b74a3606739ec50ed19f3398c7d8 Bisecting: 1119 revisions left to test after this (roughly 10 steps) [67e9847b0208ae02efbe42dbcda4c1a9a1a853cd] wifi: mt76: mt7925: remove the unused mt7925_mcu_set_chan_info testing commit 67e9847b0208ae02efbe42dbcda4c1a9a1a853cd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 775926f85ddae7631ee8e50709280f64698aca6dfeab0bbf50325f5c4ae2766a all runs: OK false negative chance: 0.000 # git bisect good 67e9847b0208ae02efbe42dbcda4c1a9a1a853cd Bisecting: 544 revisions left to test after this (roughly 9 steps) [cd9b6f4795e7002fa2fb51e6d172294e28453df3] Merge tag 'for-net-next-2024-07-15' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next testing commit cd9b6f4795e7002fa2fb51e6d172294e28453df3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6aa64d4929c812320e5899ddea63735446557f3f113b6a6df7ea368519b009d6 all runs: OK false negative chance: 0.000 # git bisect good cd9b6f4795e7002fa2fb51e6d172294e28453df3 Bisecting: 317 revisions left to test after this (roughly 8 steps) [15114e8fb58ffd574da83951e89cb5ab0055cc1e] Merge tag 'thermal-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm testing commit 15114e8fb58ffd574da83951e89cb5ab0055cc1e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 66a42340f5821e304a35fe4a873e876ffdd4a30b1b1410141280c1dca3122f98 all runs: OK false negative chance: 0.000 # git bisect good 15114e8fb58ffd574da83951e89cb5ab0055cc1e Bisecting: 161 revisions left to test after this (roughly 7 steps) [4a996d90b9e046c6d59845acf00a54d464c34ff3] Merge tag 'sched-core-2024-07-16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 4a996d90b9e046c6d59845acf00a54d464c34ff3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6fe19ddb93117d74676af075dbbaff4fb4de01f3eeda0d796cc5a8d5f9180d48 all runs: OK false negative chance: 0.000 # git bisect good 4a996d90b9e046c6d59845acf00a54d464c34ff3 Bisecting: 66 revisions left to test after this (roughly 6 steps) [0434dbe32053d07d658165be681505120c6b1abc] Merge tag 'linux_kselftest-next-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest testing commit 0434dbe32053d07d658165be681505120c6b1abc gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e99f512d3184d70be791f91e98aaa8bfb38f86ac4f293ba1308716147b087d2e all runs: OK false negative chance: 0.000 # git bisect good 0434dbe32053d07d658165be681505120c6b1abc Bisecting: 33 revisions left to test after this (roughly 5 steps) [20d2e88cc7461b03b97293d62d780a2d4b08ed8b] eth: fbnic: Add initial messaging to notify FW of our presence testing commit 20d2e88cc7461b03b97293d62d780a2d4b08ed8b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d16c65ef091ab08ac3aff027ca0db16fcb0ee44ab4d71cc7b48dc3ae6ce82e57 all runs: OK false negative chance: 0.000 # git bisect good 20d2e88cc7461b03b97293d62d780a2d4b08ed8b Bisecting: 16 revisions left to test after this (roughly 4 steps) [d657f5c76c47eca50dd61b5c1e150dac05e07046] Merge branch 'vrf-fix-source-address-selection-with-route-leak' testing commit d657f5c76c47eca50dd61b5c1e150dac05e07046 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a47becf3c60527d3b888df689873a54bd3d3021112872391a2d02fff544d9291 all runs: OK false negative chance: 0.000 # git bisect good d657f5c76c47eca50dd61b5c1e150dac05e07046 Bisecting: 10 revisions left to test after this (roughly 3 steps) [af58de31bebe737235f0238843f2054996998bd5] Merge branch 'eth-fbnic-add-network-driver-for-meta-platforms-host-network-interface' testing commit af58de31bebe737235f0238843f2054996998bd5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d68551bfa94ed790ffb343ce924f3c4903272cde8c2bf2c501e29fb937cf31d4 all runs: OK false negative chance: 0.000 # git bisect good af58de31bebe737235f0238843f2054996998bd5 Bisecting: 5 revisions left to test after this (roughly 3 steps) [0a1868b93fad5938dbcca77286b25bf211c49f7a] net: bridge: mst: Check vlan state for egress decision testing commit 0a1868b93fad5938dbcca77286b25bf211c49f7a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6564fe91e13818666ef104031ffc7435bae1cb4bbe8748230763e421c021aa49 all runs: crashed: kernel BUG in vlan_get_protocol_dgram representative crash: kernel BUG in vlan_get_protocol_dgram, types: [BUG] # git bisect bad 0a1868b93fad5938dbcca77286b25bf211c49f7a Bisecting: 2 revisions left to test after this (roughly 1 step) [79eecf631c14e7f4057186570ac20e2cfac3802e] af_packet: Handle outgoing VLAN packets without hardware offloading testing commit 79eecf631c14e7f4057186570ac20e2cfac3802e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ea9ae5be5f0f0765639f296387697e9ed3194120bc7f3d3862857ac50215af8b all runs: crashed: kernel BUG in vlan_get_protocol_dgram representative crash: kernel BUG in vlan_get_protocol_dgram, types: [BUG] # git bisect bad 79eecf631c14e7f4057186570ac20e2cfac3802e Bisecting: 0 revisions left to test after this (roughly 0 steps) [97d9fba9a812cada5484667a46e14a4c976ca330] net: netconsole: Disable target before netpoll cleanup testing commit 97d9fba9a812cada5484667a46e14a4c976ca330 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4c57aef23a8f68e5c4b2c43cfc043ab81864b887d25beaac31efe96e945f8571 all runs: OK false negative chance: 0.000 # git bisect good 97d9fba9a812cada5484667a46e14a4c976ca330 79eecf631c14e7f4057186570ac20e2cfac3802e is the first bad commit commit 79eecf631c14e7f4057186570ac20e2cfac3802e Author: Chengen Du Date: Sat Jul 13 19:47:35 2024 +0800 af_packet: Handle outgoing VLAN packets without hardware offloading The issue initially stems from libpcap. The ethertype will be overwritten as the VLAN TPID if the network interface lacks hardware VLAN offloading. In the outbound packet path, if hardware VLAN offloading is unavailable, the VLAN tag is inserted into the payload but then cleared from the sk_buff struct. Consequently, this can lead to a false negative when checking for the presence of a VLAN tag, causing the packet sniffing outcome to lack VLAN tag information (i.e., TCI-TPID). As a result, the packet capturing tool may be unable to parse packets as expected. The TCI-TPID is missing because the prb_fill_vlan_info() function does not modify the tp_vlan_tci/tp_vlan_tpid values, as the information is in the payload and not in the sk_buff struct. The skb_vlan_tag_present() function only checks vlan_all in the sk_buff struct. In cooked mode, the L2 header is stripped, preventing the packet capturing tool from determining the correct TCI-TPID value. Additionally, the protocol in SLL is incorrect, which means the packet capturing tool cannot parse the L3 header correctly. Link: https://github.com/the-tcpdump-group/libpcap/issues/1105 Link: https://lore.kernel.org/netdev/20240520070348.26725-1-chengen.du@canonical.com/T/#u Fixes: 393e52e33c6c ("packet: deliver VLAN TCI to userspace") Cc: stable@vger.kernel.org Signed-off-by: Chengen Du Reviewed-by: Willem de Bruijn Link: https://patch.msgid.link/20240713114735.62360-1-chengen.du@canonical.com Signed-off-by: Jakub Kicinski net/packet/af_packet.c | 86 ++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 84 insertions(+), 2 deletions(-) accumulated error probability: 0.00 culprit signature: ea9ae5be5f0f0765639f296387697e9ed3194120bc7f3d3862857ac50215af8b parent signature: 4c57aef23a8f68e5c4b2c43cfc043ab81864b887d25beaac31efe96e945f8571 revisions tested: 23, total time: 7h27m34.812935574s (build: 4h24m3.365914537s, test: 2h46m20.176899409s) first bad commit: 79eecf631c14e7f4057186570ac20e2cfac3802e af_packet: Handle outgoing VLAN packets without hardware offloading recipients (to): ["chengen.du@canonical.com" "kuba@kernel.org" "willemb@google.com"] recipients (cc): [] crash: kernel BUG in vlan_get_protocol_dgram skbuff: skb_under_panic: text:ffffffff8257e1be len:29 put:14 head:ffff88810229c6c0 data:ffff88810229c6d0 tail:0x11 end:0x100 dev: ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:205! Oops: invalid opcode: 0000 [#1] PREEMPT SMP PTI CPU: 0 PID: 3542 Comm: syz.3.24 Not tainted 6.10.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:skb_panic net/core/skbuff.c:205 [inline] RIP: 0010:skb_under_panic+0x5b/0x60 net/core/skbuff.c:215 Code: 66 0b 83 48 0f 45 df 48 c7 c7 fe e0 24 83 48 c7 c6 50 e1 24 83 53 41 53 41 52 ff b0 c8 00 00 00 e8 6a 44 47 00 48 83 c4 20 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 RSP: 0018:ffffc9000251bb80 EFLAGS: 00010282 RAX: 0000000000000087 RBX: ffffffff830b6693 RCX: f61783ef7b1b5a00 RDX: ffff888237c29240 RSI: ffffffff830fa734 RDI: 00000000ffffffff RBP: 000000000000a888 R08: 0000000000000000 R09: ffffffff83527690 R10: ffffc9000251ba48 R11: ffffc9000251b9f0 R12: ffffc9000251bd78 R13: ffff888179504ac0 R14: ffff88810229c6d0 R15: 0000000000000001 FS: 00007f2a791fa6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2a791f9f98 CR3: 000000010e756000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_push+0x31/0x40 net/core/skbuff.c:2598 vlan_get_protocol_dgram+0x4e/0x90 net/packet/af_packet.c:585 packet_recvmsg+0x26d/0x590 net/packet/af_packet.c:3552 sock_recvmsg_nosec net/socket.c:1046 [inline] sock_recvmsg+0x9e/0xc0 net/socket.c:1068 ____sys_recvmsg+0x112/0x1f0 net/socket.c:2804 ___sys_recvmsg net/socket.c:2846 [inline] do_recvmmsg+0x2e1/0x600 net/socket.c:2940 __sys_recvmmsg net/socket.c:3019 [inline] __do_sys_recvmmsg net/socket.c:3042 [inline] __se_sys_recvmmsg net/socket.c:3035 [inline] __x64_sys_recvmmsg+0xad/0xe0 net/socket.c:3035 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xe0/0x200 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2a78385d29 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:00007f2a791fa038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f2a78576080 RCX: 00007f2a78385d29 RDX: 0000000000000001 RSI: 0000000020000480 RDI: 0000000000000003 RBP: 00007f2a78401b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000010022 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f2a78576080 R15: 00007ffdff29feb8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:skb_panic net/core/skbuff.c:205 [inline] RIP: 0010:skb_under_panic+0x5b/0x60 net/core/skbuff.c:215 Code: 66 0b 83 48 0f 45 df 48 c7 c7 fe e0 24 83 48 c7 c6 50 e1 24 83 53 41 53 41 52 ff b0 c8 00 00 00 e8 6a 44 47 00 48 83 c4 20 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 RSP: 0018:ffffc9000251bb80 EFLAGS: 00010282 RAX: 0000000000000087 RBX: ffffffff830b6693 RCX: f61783ef7b1b5a00 RDX: ffff888237c29240 RSI: ffffffff830fa734 RDI: 00000000ffffffff RBP: 000000000000a888 R08: 0000000000000000 R09: ffffffff83527690 R10: ffffc9000251ba48 R11: ffffc9000251b9f0 R12: ffffc9000251bd78 R13: ffff888179504ac0 R14: ffff88810229c6d0 R15: 0000000000000001 FS: 00007f2a791fa6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2a791f9f98 CR3: 000000010e756000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400