ci starts bisection 2024-12-08 15:04:09.174059817 +0000 UTC m=+175572.174315877 bisecting cause commit starting from 7503345ac5f5e82fd9a36d6e6b447c016376403a building syzkaller on 9ac0fdc66500475f1914254ef369b32d51adbff9 ensuring issue is reproducible on original commit 7503345ac5f5e82fd9a36d6e6b447c016376403a testing commit 7503345ac5f5e82fd9a36d6e6b447c016376403a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 61b249c59e9f7b17bb2bdf20b870d5c5dd0f7d136b2ab7f24c3ef50550d79b88 all runs: crashed: BUG: Bad page state in skb_pp_cow_data representative crash: BUG: Bad page state in skb_pp_cow_data, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 7503345ac5f5e82fd9a36d6e6b447c016376403a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6ba1d53773778f7255601e2cdec08b206038614aa3185d557ab2d729677cfc46 all runs: crashed: BUG: Bad page state in skb_pp_cow_data representative crash: BUG: Bad page state in skb_pp_cow_data, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed kconfig minimization: base=4037 full=8235 leaves diff=2125 split chunks (needed=false): <2125> split chunk #0 of len 2125 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 7503345ac5f5e82fd9a36d6e6b447c016376403a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 38a36a847aab86e3e5dcb30e7614669d0adee47add42bf6afe06d4aaac79782a all runs: crashed: BUG: Bad page state in skb_pp_cow_data representative crash: BUG: Bad page state in skb_pp_cow_data, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 7503345ac5f5e82fd9a36d6e6b447c016376403a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 7503345ac5f5e82fd9a36d6e6b447c016376403a: 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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 7503345ac5f5e82fd9a36d6e6b447c016376403a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b5be3839d622f054c2f49e19400267b3882dd6ca0f01315f949220b3849a65a5 all runs: crashed: BUG: Bad page state in skb_pp_cow_data representative crash: BUG: Bad page state in skb_pp_cow_data, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 7503345ac5f5e82fd9a36d6e6b447c016376403a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4b8b9ee3e8381a60fb9edebf9a37dcaae59d6c52eec3a81844e6f2b1bbe06eb0 all runs: crashed: BUG: Bad page state in skb_pp_cow_data representative crash: BUG: Bad page state in skb_pp_cow_data, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 7503345ac5f5e82fd9a36d6e6b447c016376403a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b413e82cf8e98ea7a93575b44d69314990a2dd803174c9331a67a73ea0b0b01f all runs: OK false negative chance: 0.000 minimized to 850 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CHARGER_BQ24190 CMA COMMON_CLK CONTIG_ALLOC 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 EVM_EXTRA_SMACK_XATTRS 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_ZEROPLUS 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 IRQ_REMAP IRQ_TIME_ACCOUNTING KVM KVM_INTEL LAPB LCD_CLASS_DEVICE LIBNVDIMM MAC802154 MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT 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_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 NOP_USB_XCEIV PARPORT PCCARD PCMCIA PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RAS RC_CORE REGULATOR RFKILL SND SOUND SPI SSB STAGING TAP TARGET_CORE TRANSPARENT_HUGEPAGE TUN TYPEC TYPEC_MUX_PI3USB30532 USB_AMD5536UDC USB_ATM 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_ROLES_INTEL_XHCI 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_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_FS VIRTIO_MEM VIRTIO_MMIO VIRTIO_MMIO_CMDLINE_DEVICES VIRTIO_PMEM VIRTIO_VDPA VIRTIO_VSOCKETS VIRTIO_VSOCKETS_COMMON VIRT_WIFI VLAN_8021Q VLAN_8021Q_GVRP VLAN_8021Q_MVRP VMAP_PFN VMWARE_VMCI VMXNET3 VP_VDPA VSOCKETS VSOCKETS_DIAG VSOCKETS_LOOPBACK VSOCKMON VT_HW_CONSOLE_BINDING VXFS_FS WAN WANT_DEV_COREDUMP WEXT_CORE WEXT_PROC WIREGUARD WIRELESS WLAN WLAN_VENDOR_ADMTEK 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 [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], 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: 7eef8538328b81ca0099a053da67d265aa4f5804b9f15c1547ee737fce0b2b58 all runs: crashed: BUG: Bad page state in skb_pp_cow_data representative crash: BUG: Bad page state in skb_pp_cow_data, types: [UNKNOWN] 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: dbfad63682d0a440bc31358f365a84f23a15d832f8bd12f16132265d9f5a67b0 all runs: crashed: BUG: Bad page state in skb_pp_cow_data representative crash: BUG: Bad page state in skb_pp_cow_data, types: [UNKNOWN] 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: 3533b5d40835ffdd2bae59f97e9f6dc105851d3bd3ba05691902875f61bf9d56 all runs: crashed: BUG: Bad page state in skb_pp_cow_data representative crash: BUG: Bad page state in skb_pp_cow_data, types: [UNKNOWN] testing release v6.8 testing commit e8f897f4afef0031fe618a8e94127a0934896aba gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d777156a0bce55095610639a89b493c5c587e14eb291e9ee332d1265e519501b all runs: OK false negative chance: 0.000 # git bisect start 0c3836482481200ead7b416ca80c68a29cfdaabd e8f897f4afef0031fe618a8e94127a0934896aba Bisecting: 15131 revisions left to test after this (roughly 14 steps) [63407d3081a6b406d94bd7d96ff2ca38fa7df236] Merge tag 'phy-fixes-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy testing commit 63407d3081a6b406d94bd7d96ff2ca38fa7df236 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7983ed62a77143d633b64405ab3ece9ad18c99ee77fcb59662df6fc14e0358e1 all runs: crashed: BUG: Bad page state in skb_pp_cow_data representative crash: BUG: Bad page state in skb_pp_cow_data, types: [UNKNOWN] # git bisect bad 63407d3081a6b406d94bd7d96ff2ca38fa7df236 Bisecting: 7033 revisions left to test after this (roughly 13 steps) [480e035fc4c714fb5536e64ab9db04fedc89e910] Merge tag 'drm-next-2024-03-13' of https://gitlab.freedesktop.org/drm/kernel testing commit 480e035fc4c714fb5536e64ab9db04fedc89e910 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 19be428695a9a438b5e086fa6db9961af7ee7ac932b99fbe58dbc4fcca77e6ee all runs: crashed: BUG: Bad page state in skb_pp_cow_data representative crash: BUG: Bad page state in skb_pp_cow_data, types: [UNKNOWN] # git bisect bad 480e035fc4c714fb5536e64ab9db04fedc89e910 Bisecting: 2870 revisions left to test after this (roughly 12 steps) [9187210eee7d87eea37b45ea93454a88681894a4] Merge tag 'net-next-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next testing commit 9187210eee7d87eea37b45ea93454a88681894a4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c969b82b0671f291c03e0f68f0b81133afb0605f8aef45b05741aa94104f5d0f all runs: crashed: BUG: Bad page state in skb_pp_cow_data representative crash: BUG: Bad page state in skb_pp_cow_data, types: [UNKNOWN] # git bisect bad 9187210eee7d87eea37b45ea93454a88681894a4 Bisecting: 2600 revisions left to test after this (roughly 11 steps) [a01c9fe32378636ae65bec8047b5de3fdb2ba5c8] Merge tag 'nfsd-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux testing commit a01c9fe32378636ae65bec8047b5de3fdb2ba5c8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 83ff570ba8f728f70554597375f249ae640981635025132b98629680d09ee65e all runs: OK false negative chance: 0.000 # git bisect good a01c9fe32378636ae65bec8047b5de3fdb2ba5c8 Bisecting: 1299 revisions left to test after this (roughly 10 steps) [ca61ba3885274a684c83d8a538eb77b30e38ee92] Merge branch 'rework-genet-mdioclocking' testing commit ca61ba3885274a684c83d8a538eb77b30e38ee92 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2095a2e150b6c91bd2f5c16f773e22737e7e7c174c4428c37bce3ab98b754612 all runs: crashed: BUG: Bad page state in skb_pp_cow_data representative crash: BUG: Bad page state in skb_pp_cow_data, types: [UNKNOWN] # git bisect bad ca61ba3885274a684c83d8a538eb77b30e38ee92 Bisecting: 650 revisions left to test after this (roughly 9 steps) [f42822f22b1c5f72c7e3497d9683f379ab0c5fe4] bnxt_en: Use firmware provided maximum filter counts. testing commit f42822f22b1c5f72c7e3497d9683f379ab0c5fe4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a2c243d42adab9cd912edcc7ad506b2e983784d0b16e40a6872760b754f3f634 all runs: OK false negative chance: 0.000 # git bisect good f42822f22b1c5f72c7e3497d9683f379ab0c5fe4 Bisecting: 325 revisions left to test after this (roughly 8 steps) [e10cd2ddd89e8b3e61b49247067e79f7debec2f1] wifi: rtw89: load BB parameters to PHY-1 testing commit e10cd2ddd89e8b3e61b49247067e79f7debec2f1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c127dce100d6cd2220788381beaeeb3f4d2eb8bcff06f4b1a8dfd90c4d2ae9b7 all runs: OK false negative chance: 0.000 # git bisect good e10cd2ddd89e8b3e61b49247067e79f7debec2f1 Bisecting: 162 revisions left to test after this (roughly 7 steps) [81800aef0eba33df2b30f2e29a0137078b9ba256] net: mdio_bus: make mdio_bus_type const testing commit 81800aef0eba33df2b30f2e29a0137078b9ba256 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4f07167043e619a58c808cc6b7924112de72ff6666708b860b41948fa20e93aa all runs: crashed: BUG: Bad page state in skb_pp_cow_data representative crash: BUG: Bad page state in skb_pp_cow_data, types: [UNKNOWN] # git bisect bad 81800aef0eba33df2b30f2e29a0137078b9ba256 Bisecting: 81 revisions left to test after this (roughly 6 steps) [bed90b06b6812d9c8c848414b090ddf38f0e6cc1] net: phy: aquantia: clear PMD Global Transmit Disable bit during init testing commit bed90b06b6812d9c8c848414b090ddf38f0e6cc1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8cd28e48ed9d0b0470156c97836bf2c4a1de5439221a175bd55ef5f05644d2bf all runs: OK false negative chance: 0.000 # git bisect good bed90b06b6812d9c8c848414b090ddf38f0e6cc1 Bisecting: 33 revisions left to test after this (roughly 5 steps) [e1a00373e1305578cd09526aa056940409e6b877] Merge tag 'linux-can-next-for-6.9-20240213' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next testing commit e1a00373e1305578cd09526aa056940409e6b877 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 31ac3be262aa6d879ac9fde53bf1e43d8737eafb5007be1c59b8dbc0f23e97dc all runs: crashed: BUG: Bad page state in skb_pp_cow_data representative crash: BUG: Bad page state in skb_pp_cow_data, types: [UNKNOWN] # git bisect bad e1a00373e1305578cd09526aa056940409e6b877 Bisecting: 23 revisions left to test after this (roughly 5 steps) [383de5664c87abe097d6369d18305c3a6e559bb2] can: softing: remove redundant NULL check testing commit 383de5664c87abe097d6369d18305c3a6e559bb2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8d84f46f81d25049144436c064beb5e2f1f08c158d1a0aa2b3151656a54e1b6a all runs: OK false negative chance: 0.000 # git bisect good 383de5664c87abe097d6369d18305c3a6e559bb2 Bisecting: 11 revisions left to test after this (roughly 4 steps) [2ce30993831041b9dcd31eb12896be6611e8b7e2] r8169: add generic rtl_set_eee_txidle_timer function testing commit 2ce30993831041b9dcd31eb12896be6611e8b7e2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: afc03f8954c2d3487bf589a7a1435c356be221ef1fcd8cec2f4744ceb609cf0d all runs: OK false negative chance: 0.000 # git bisect good 2ce30993831041b9dcd31eb12896be6611e8b7e2 Bisecting: 5 revisions left to test after this (roughly 3 steps) [4d2bb0bfe8741a8778e0053f31a4e0f0cba80e8b] xdp: rely on skb pointer reference in do_xdp_generic and netif_receive_generic_xdp testing commit 4d2bb0bfe8741a8778e0053f31a4e0f0cba80e8b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 87a47ce5cd5ef513b7210639bce7d246c5e1214209b67367ac6f3d2025617b82 all runs: OK false negative chance: 0.000 # git bisect good 4d2bb0bfe8741a8778e0053f31a4e0f0cba80e8b Bisecting: 2 revisions left to test after this (roughly 2 steps) [f77581bfda2409a0a3f3a42fa70cab9ef0891e9c] Merge branch 'add-multi-buff-support-for-xdp-running-in-generic-mode' testing commit f77581bfda2409a0a3f3a42fa70cab9ef0891e9c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 14108fd0f724ea461566ee880f0330f752aaff369b71bde995f9e244c51a6929 all runs: crashed: BUG: Bad page state in skb_pp_cow_data representative crash: BUG: Bad page state in skb_pp_cow_data, types: [UNKNOWN] # git bisect bad f77581bfda2409a0a3f3a42fa70cab9ef0891e9c Bisecting: 0 revisions left to test after this (roughly 1 step) [27accb3cc08a0ec4e348356774042d5fa5f30cce] veth: rely on skb_pp_cow_data utility routine testing commit 27accb3cc08a0ec4e348356774042d5fa5f30cce gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4234c74ca2bd5f00e817b80afd25ef2d1b8f33a7122a76da2d347135ae10fcb5 all runs: crashed: BUG: Bad page state in skb_pp_cow_data representative crash: BUG: Bad page state in skb_pp_cow_data, types: [UNKNOWN] # git bisect bad 27accb3cc08a0ec4e348356774042d5fa5f30cce Bisecting: 0 revisions left to test after this (roughly 0 steps) [e6d5dbdd20aa6a86974af51deb9414cd2e7794cb] xdp: add multi-buff support for xdp running in generic mode testing commit e6d5dbdd20aa6a86974af51deb9414cd2e7794cb gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 88c3204adb6b21e69cca4c9ba0d6cc470fbf80c0ff3442225d8b08b61b4ff461 all runs: crashed: BUG: Bad page state in skb_cow_data_for_xdp representative crash: BUG: Bad page state in skb_cow_data_for_xdp, types: [UNKNOWN] # git bisect bad e6d5dbdd20aa6a86974af51deb9414cd2e7794cb e6d5dbdd20aa6a86974af51deb9414cd2e7794cb is the first bad commit commit e6d5dbdd20aa6a86974af51deb9414cd2e7794cb Author: Lorenzo Bianconi Date: Mon Feb 12 10:50:56 2024 +0100 xdp: add multi-buff support for xdp running in generic mode Similar to native xdp, do not always linearize the skb in netif_receive_generic_xdp routine but create a non-linear xdp_buff to be processed by the eBPF program. This allow to add multi-buffer support for xdp running in generic mode. Acked-by: Jesper Dangaard Brouer Reviewed-by: Toke Hoiland-Jorgensen Signed-off-by: Lorenzo Bianconi Link: https://lore.kernel.org/r/1044d6412b1c3e95b40d34993fd5f37cd2f319fd.1707729884.git.lorenzo@kernel.org Signed-off-by: Jakub Kicinski include/linux/skbuff.h | 2 ++ net/core/dev.c | 70 +++++++++++++++++++++++++++----------- net/core/skbuff.c | 91 ++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 144 insertions(+), 19 deletions(-) accumulated error probability: 0.00 culprit signature: 88c3204adb6b21e69cca4c9ba0d6cc470fbf80c0ff3442225d8b08b61b4ff461 parent signature: 87a47ce5cd5ef513b7210639bce7d246c5e1214209b67367ac6f3d2025617b82 revisions tested: 26, total time: 10h25m44.641118199s (build: 6h39m2.935019246s, test: 2h56m35.002967858s) first bad commit: e6d5dbdd20aa6a86974af51deb9414cd2e7794cb xdp: add multi-buff support for xdp running in generic mode recipients (to): ["hawk@kernel.org" "kuba@kernel.org" "lorenzo@kernel.org" "toke@redhat.com"] recipients (cc): [] crash: BUG: Bad page state in skb_cow_data_for_xdp BUG: Bad page state in process syz.2.15 pfn:117b21 page:ffffea00045ec840 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x117b21 flags: 0x100000000000000(node=0|zone=2) page_type: 0xffffffff() raw: 0100000000000000 dead000000000040 ffff888103298000 0000000000000000 raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102820(GFP_ATOMIC|__GFP_NOWARN|__GFP_HARDWALL), pid 4318, tgid 4317 (syz.2.15), ts 58675766153, free_ts 58369867418 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x15a/0x180 mm/page_alloc.c:1533 prep_new_page mm/page_alloc.c:1540 [inline] get_page_from_freelist+0x17b9/0x1920 mm/page_alloc.c:3311 __alloc_pages+0x11f/0x280 mm/page_alloc.c:4567 __alloc_pages_bulk+0x442/0x6b0 mm/page_alloc.c:4515 alloc_pages_bulk_array_node include/linux/gfp.h:211 [inline] __page_pool_alloc_pages_slow+0x69/0x210 net/core/page_pool.c:488 page_pool_alloc include/net/page_pool/helpers.h:125 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:163 [inline] skb_pp_cow_data net/core/skbuff.c:952 [inline] skb_cow_data_for_xdp+0x372/0x560 net/core/skbuff.c:985 netif_skb_check_for_xdp net/core/dev.c:4959 [inline] netif_receive_generic_xdp net/core/dev.c:4998 [inline] do_xdp_generic+0xec/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 page last free pid 3490 tgid 3490 stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1140 [inline] free_unref_page_prepare+0x3db/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 vfree+0x7a/0xe0 mm/vmalloc.c:2842 delayed_vfree_work+0x1b/0x30 mm/vmalloc.c:2763 process_one_work kernel/workqueue.c:2633 [inline] process_scheduled_works+0x250/0x4d0 kernel/workqueue.c:2706 worker_thread+0x23d/0x300 kernel/workqueue.c:2787 kthread+0xe9/0x100 kernel/kthread.c:388 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242 Modules linked in: CPU: 0 PID: 4318 Comm: syz.2.15 Not tainted 6.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x83/0xd0 lib/dump_stack.c:106 bad_page+0xdd/0xf0 mm/page_alloc.c:514 free_page_is_bad mm/page_alloc.c:967 [inline] free_pages_prepare mm/page_alloc.c:1132 [inline] free_unref_page_prepare+0x453/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 bpf_xdp_shrink_data net/core/filter.c:4129 [inline] bpf_xdp_frags_shrink_tail+0x141/0x1e0 net/core/filter.c:4150 ____bpf_xdp_adjust_tail net/core/filter.c:4175 [inline] bpf_xdp_adjust_tail+0x75/0x80 net/core/filter.c:4168 ___bpf_prog_run+0x5f6/0x2280 kernel/bpf/core.c:1986 __bpf_prog_run32+0xbb/0xe0 kernel/bpf/core.c:2225 bpf_dispatcher_nop_func include/linux/bpf.h:1235 [inline] __bpf_prog_run include/linux/filter.h:651 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x12f/0x370 net/core/dev.c:4891 netif_receive_generic_xdp net/core/dev.c:5004 [inline] do_xdp_generic+0x1a2/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f9f4537e98f Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007f9f461a0020 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f9f45545fa0 RCX: 00007f9f4537e98f RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 00007f9f453f3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9f45545fa0 R15: 00007fff3e3c3428 BUG: Bad page state in process syz.2.15 pfn:1171b0 page:ffffea00045c6c00 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1171b0 flags: 0x100000000000000(node=0|zone=2) page_type: 0xffffffff() raw: 0100000000000000 dead000000000040 ffff888103298000 0000000000000000 raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102820(GFP_ATOMIC|__GFP_NOWARN|__GFP_HARDWALL), pid 4318, tgid 4317 (syz.2.15), ts 58675762866, free_ts 58369872651 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x15a/0x180 mm/page_alloc.c:1533 prep_new_page mm/page_alloc.c:1540 [inline] get_page_from_freelist+0x17b9/0x1920 mm/page_alloc.c:3311 __alloc_pages+0x11f/0x280 mm/page_alloc.c:4567 __alloc_pages_bulk+0x442/0x6b0 mm/page_alloc.c:4515 alloc_pages_bulk_array_node include/linux/gfp.h:211 [inline] __page_pool_alloc_pages_slow+0x69/0x210 net/core/page_pool.c:488 page_pool_alloc include/net/page_pool/helpers.h:125 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:163 [inline] skb_pp_cow_data net/core/skbuff.c:952 [inline] skb_cow_data_for_xdp+0x372/0x560 net/core/skbuff.c:985 netif_skb_check_for_xdp net/core/dev.c:4959 [inline] netif_receive_generic_xdp net/core/dev.c:4998 [inline] do_xdp_generic+0xec/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 page last free pid 3490 tgid 3490 stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1140 [inline] free_unref_page_prepare+0x3db/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 vfree+0x7a/0xe0 mm/vmalloc.c:2842 delayed_vfree_work+0x1b/0x30 mm/vmalloc.c:2763 process_one_work kernel/workqueue.c:2633 [inline] process_scheduled_works+0x250/0x4d0 kernel/workqueue.c:2706 worker_thread+0x23d/0x300 kernel/workqueue.c:2787 kthread+0xe9/0x100 kernel/kthread.c:388 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242 Modules linked in: CPU: 0 PID: 4318 Comm: syz.2.15 Tainted: G B 6.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x83/0xd0 lib/dump_stack.c:106 bad_page+0xdd/0xf0 mm/page_alloc.c:514 free_page_is_bad mm/page_alloc.c:967 [inline] free_pages_prepare mm/page_alloc.c:1132 [inline] free_unref_page_prepare+0x453/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 bpf_xdp_shrink_data net/core/filter.c:4129 [inline] bpf_xdp_frags_shrink_tail+0x141/0x1e0 net/core/filter.c:4150 ____bpf_xdp_adjust_tail net/core/filter.c:4175 [inline] bpf_xdp_adjust_tail+0x75/0x80 net/core/filter.c:4168 ___bpf_prog_run+0x5f6/0x2280 kernel/bpf/core.c:1986 __bpf_prog_run32+0xbb/0xe0 kernel/bpf/core.c:2225 bpf_dispatcher_nop_func include/linux/bpf.h:1235 [inline] __bpf_prog_run include/linux/filter.h:651 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x12f/0x370 net/core/dev.c:4891 netif_receive_generic_xdp net/core/dev.c:5004 [inline] do_xdp_generic+0x1a2/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f9f4537e98f Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007f9f461a0020 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f9f45545fa0 RCX: 00007f9f4537e98f RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 00007f9f453f3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9f45545fa0 R15: 00007fff3e3c3428 BUG: Bad page state in process syz.2.15 pfn:114dc3 page:ffffea00045370c0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x114dc3 flags: 0x100000000000000(node=0|zone=2) page_type: 0xffffffff() raw: 0100000000000000 dead000000000040 ffff888103298000 0000000000000000 raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102820(GFP_ATOMIC|__GFP_NOWARN|__GFP_HARDWALL), pid 4318, tgid 4317 (syz.2.15), ts 58675759744, free_ts 58369876092 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x15a/0x180 mm/page_alloc.c:1533 prep_new_page mm/page_alloc.c:1540 [inline] get_page_from_freelist+0x17b9/0x1920 mm/page_alloc.c:3311 __alloc_pages+0x11f/0x280 mm/page_alloc.c:4567 __alloc_pages_bulk+0x442/0x6b0 mm/page_alloc.c:4515 alloc_pages_bulk_array_node include/linux/gfp.h:211 [inline] __page_pool_alloc_pages_slow+0x69/0x210 net/core/page_pool.c:488 page_pool_alloc include/net/page_pool/helpers.h:125 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:163 [inline] skb_pp_cow_data net/core/skbuff.c:952 [inline] skb_cow_data_for_xdp+0x372/0x560 net/core/skbuff.c:985 netif_skb_check_for_xdp net/core/dev.c:4959 [inline] netif_receive_generic_xdp net/core/dev.c:4998 [inline] do_xdp_generic+0xec/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 page last free pid 3490 tgid 3490 stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1140 [inline] free_unref_page_prepare+0x3db/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 vfree+0x7a/0xe0 mm/vmalloc.c:2842 delayed_vfree_work+0x1b/0x30 mm/vmalloc.c:2763 process_one_work kernel/workqueue.c:2633 [inline] process_scheduled_works+0x250/0x4d0 kernel/workqueue.c:2706 worker_thread+0x23d/0x300 kernel/workqueue.c:2787 kthread+0xe9/0x100 kernel/kthread.c:388 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242 Modules linked in: CPU: 0 PID: 4318 Comm: syz.2.15 Tainted: G B 6.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x83/0xd0 lib/dump_stack.c:106 bad_page+0xdd/0xf0 mm/page_alloc.c:514 free_page_is_bad mm/page_alloc.c:967 [inline] free_pages_prepare mm/page_alloc.c:1132 [inline] free_unref_page_prepare+0x453/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 bpf_xdp_shrink_data net/core/filter.c:4129 [inline] bpf_xdp_frags_shrink_tail+0x141/0x1e0 net/core/filter.c:4150 ____bpf_xdp_adjust_tail net/core/filter.c:4175 [inline] bpf_xdp_adjust_tail+0x75/0x80 net/core/filter.c:4168 ___bpf_prog_run+0x5f6/0x2280 kernel/bpf/core.c:1986 __bpf_prog_run32+0xbb/0xe0 kernel/bpf/core.c:2225 bpf_dispatcher_nop_func include/linux/bpf.h:1235 [inline] __bpf_prog_run include/linux/filter.h:651 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x12f/0x370 net/core/dev.c:4891 netif_receive_generic_xdp net/core/dev.c:5004 [inline] do_xdp_generic+0x1a2/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f9f4537e98f Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007f9f461a0020 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f9f45545fa0 RCX: 00007f9f4537e98f RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 00007f9f453f3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9f45545fa0 R15: 00007fff3e3c3428 BUG: Bad page state in process syz.2.15 pfn:117d0e page:ffffea00045f4380 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x117d0e flags: 0x100000000000000(node=0|zone=2) page_type: 0xffffffff() raw: 0100000000000000 dead000000000040 ffff888103298000 0000000000000000 raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102820(GFP_ATOMIC|__GFP_NOWARN|__GFP_HARDWALL), pid 4318, tgid 4317 (syz.2.15), ts 58675756468, free_ts 58369879786 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x15a/0x180 mm/page_alloc.c:1533 prep_new_page mm/page_alloc.c:1540 [inline] get_page_from_freelist+0x17b9/0x1920 mm/page_alloc.c:3311 __alloc_pages+0x11f/0x280 mm/page_alloc.c:4567 __alloc_pages_bulk+0x442/0x6b0 mm/page_alloc.c:4515 alloc_pages_bulk_array_node include/linux/gfp.h:211 [inline] __page_pool_alloc_pages_slow+0x69/0x210 net/core/page_pool.c:488 page_pool_alloc include/net/page_pool/helpers.h:125 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:163 [inline] skb_pp_cow_data net/core/skbuff.c:952 [inline] skb_cow_data_for_xdp+0x372/0x560 net/core/skbuff.c:985 netif_skb_check_for_xdp net/core/dev.c:4959 [inline] netif_receive_generic_xdp net/core/dev.c:4998 [inline] do_xdp_generic+0xec/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 page last free pid 3490 tgid 3490 stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1140 [inline] free_unref_page_prepare+0x3db/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 vfree+0x7a/0xe0 mm/vmalloc.c:2842 delayed_vfree_work+0x1b/0x30 mm/vmalloc.c:2763 process_one_work kernel/workqueue.c:2633 [inline] process_scheduled_works+0x250/0x4d0 kernel/workqueue.c:2706 worker_thread+0x23d/0x300 kernel/workqueue.c:2787 kthread+0xe9/0x100 kernel/kthread.c:388 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242 Modules linked in: CPU: 0 PID: 4318 Comm: syz.2.15 Tainted: G B 6.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x83/0xd0 lib/dump_stack.c:106 bad_page+0xdd/0xf0 mm/page_alloc.c:514 free_page_is_bad mm/page_alloc.c:967 [inline] free_pages_prepare mm/page_alloc.c:1132 [inline] free_unref_page_prepare+0x453/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 bpf_xdp_shrink_data net/core/filter.c:4129 [inline] bpf_xdp_frags_shrink_tail+0x141/0x1e0 net/core/filter.c:4150 ____bpf_xdp_adjust_tail net/core/filter.c:4175 [inline] bpf_xdp_adjust_tail+0x75/0x80 net/core/filter.c:4168 ___bpf_prog_run+0x5f6/0x2280 kernel/bpf/core.c:1986 __bpf_prog_run32+0xbb/0xe0 kernel/bpf/core.c:2225 bpf_dispatcher_nop_func include/linux/bpf.h:1235 [inline] __bpf_prog_run include/linux/filter.h:651 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x12f/0x370 net/core/dev.c:4891 netif_receive_generic_xdp net/core/dev.c:5004 [inline] do_xdp_generic+0x1a2/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f9f4537e98f Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007f9f461a0020 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f9f45545fa0 RCX: 00007f9f4537e98f RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 00007f9f453f3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9f45545fa0 R15: 00007fff3e3c3428 BUG: Bad page state in process syz.2.15 pfn:116115 page:ffffea0004584540 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x116115 flags: 0x100000000000000(node=0|zone=2) page_type: 0xffffffff() raw: 0100000000000000 dead000000000040 ffff888103298000 0000000000000000 raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102820(GFP_ATOMIC|__GFP_NOWARN|__GFP_HARDWALL), pid 4318, tgid 4317 (syz.2.15), ts 58675753413, free_ts 58369891308 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x15a/0x180 mm/page_alloc.c:1533 prep_new_page mm/page_alloc.c:1540 [inline] get_page_from_freelist+0x17b9/0x1920 mm/page_alloc.c:3311 __alloc_pages+0x11f/0x280 mm/page_alloc.c:4567 __alloc_pages_bulk+0x442/0x6b0 mm/page_alloc.c:4515 alloc_pages_bulk_array_node include/linux/gfp.h:211 [inline] __page_pool_alloc_pages_slow+0x69/0x210 net/core/page_pool.c:488 page_pool_alloc include/net/page_pool/helpers.h:125 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:163 [inline] skb_pp_cow_data net/core/skbuff.c:952 [inline] skb_cow_data_for_xdp+0x372/0x560 net/core/skbuff.c:985 netif_skb_check_for_xdp net/core/dev.c:4959 [inline] netif_receive_generic_xdp net/core/dev.c:4998 [inline] do_xdp_generic+0xec/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 page last free pid 3490 tgid 3490 stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1140 [inline] free_unref_page_prepare+0x3db/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 vfree+0x7a/0xe0 mm/vmalloc.c:2842 delayed_vfree_work+0x1b/0x30 mm/vmalloc.c:2763 process_one_work kernel/workqueue.c:2633 [inline] process_scheduled_works+0x250/0x4d0 kernel/workqueue.c:2706 worker_thread+0x23d/0x300 kernel/workqueue.c:2787 kthread+0xe9/0x100 kernel/kthread.c:388 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242 Modules linked in: CPU: 0 PID: 4318 Comm: syz.2.15 Tainted: G B 6.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x83/0xd0 lib/dump_stack.c:106 bad_page+0xdd/0xf0 mm/page_alloc.c:514 free_page_is_bad mm/page_alloc.c:967 [inline] free_pages_prepare mm/page_alloc.c:1132 [inline] free_unref_page_prepare+0x453/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 bpf_xdp_shrink_data net/core/filter.c:4129 [inline] bpf_xdp_frags_shrink_tail+0x141/0x1e0 net/core/filter.c:4150 ____bpf_xdp_adjust_tail net/core/filter.c:4175 [inline] bpf_xdp_adjust_tail+0x75/0x80 net/core/filter.c:4168 ___bpf_prog_run+0x5f6/0x2280 kernel/bpf/core.c:1986 __bpf_prog_run32+0xbb/0xe0 kernel/bpf/core.c:2225 bpf_dispatcher_nop_func include/linux/bpf.h:1235 [inline] __bpf_prog_run include/linux/filter.h:651 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x12f/0x370 net/core/dev.c:4891 netif_receive_generic_xdp net/core/dev.c:5004 [inline] do_xdp_generic+0x1a2/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f9f4537e98f Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007f9f461a0020 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f9f45545fa0 RCX: 00007f9f4537e98f RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 00007f9f453f3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9f45545fa0 R15: 00007fff3e3c3428 BUG: Bad page state in process syz.2.15 pfn:117973 page:ffffea00045e5cc0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x117973 flags: 0x100000000000000(node=0|zone=2) page_type: 0xffffffff() raw: 0100000000000000 dead000000000040 ffff888103298000 0000000000000000 raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102820(GFP_ATOMIC|__GFP_NOWARN|__GFP_HARDWALL), pid 4318, tgid 4317 (syz.2.15), ts 58675750070, free_ts 58369894476 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x15a/0x180 mm/page_alloc.c:1533 prep_new_page mm/page_alloc.c:1540 [inline] get_page_from_freelist+0x17b9/0x1920 mm/page_alloc.c:3311 __alloc_pages+0x11f/0x280 mm/page_alloc.c:4567 __alloc_pages_bulk+0x442/0x6b0 mm/page_alloc.c:4515 alloc_pages_bulk_array_node include/linux/gfp.h:211 [inline] __page_pool_alloc_pages_slow+0x69/0x210 net/core/page_pool.c:488 page_pool_alloc include/net/page_pool/helpers.h:125 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:163 [inline] skb_pp_cow_data net/core/skbuff.c:952 [inline] skb_cow_data_for_xdp+0x372/0x560 net/core/skbuff.c:985 netif_skb_check_for_xdp net/core/dev.c:4959 [inline] netif_receive_generic_xdp net/core/dev.c:4998 [inline] do_xdp_generic+0xec/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 page last free pid 3490 tgid 3490 stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1140 [inline] free_unref_page_prepare+0x3db/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 vfree+0x7a/0xe0 mm/vmalloc.c:2842 delayed_vfree_work+0x1b/0x30 mm/vmalloc.c:2763 process_one_work kernel/workqueue.c:2633 [inline] process_scheduled_works+0x250/0x4d0 kernel/workqueue.c:2706 worker_thread+0x23d/0x300 kernel/workqueue.c:2787 kthread+0xe9/0x100 kernel/kthread.c:388 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242 Modules linked in: CPU: 0 PID: 4318 Comm: syz.2.15 Tainted: G B 6.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x83/0xd0 lib/dump_stack.c:106 bad_page+0xdd/0xf0 mm/page_alloc.c:514 free_page_is_bad mm/page_alloc.c:967 [inline] free_pages_prepare mm/page_alloc.c:1132 [inline] free_unref_page_prepare+0x453/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 bpf_xdp_shrink_data net/core/filter.c:4129 [inline] bpf_xdp_frags_shrink_tail+0x141/0x1e0 net/core/filter.c:4150 ____bpf_xdp_adjust_tail net/core/filter.c:4175 [inline] bpf_xdp_adjust_tail+0x75/0x80 net/core/filter.c:4168 ___bpf_prog_run+0x5f6/0x2280 kernel/bpf/core.c:1986 __bpf_prog_run32+0xbb/0xe0 kernel/bpf/core.c:2225 bpf_dispatcher_nop_func include/linux/bpf.h:1235 [inline] __bpf_prog_run include/linux/filter.h:651 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x12f/0x370 net/core/dev.c:4891 netif_receive_generic_xdp net/core/dev.c:5004 [inline] do_xdp_generic+0x1a2/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f9f4537e98f Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007f9f461a0020 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f9f45545fa0 RCX: 00007f9f4537e98f RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 00007f9f453f3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9f45545fa0 R15: 00007fff3e3c3428 BUG: Bad page state in process syz.2.15 pfn:11776b page:ffffea00045ddac0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11776b flags: 0x100000000000000(node=0|zone=2) page_type: 0xffffffff() raw: 0100000000000000 dead000000000040 ffff888103298000 0000000000000000 raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102820(GFP_ATOMIC|__GFP_NOWARN|__GFP_HARDWALL), pid 4318, tgid 4317 (syz.2.15), ts 58675746778, free_ts 58369905491 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x15a/0x180 mm/page_alloc.c:1533 prep_new_page mm/page_alloc.c:1540 [inline] get_page_from_freelist+0x17b9/0x1920 mm/page_alloc.c:3311 __alloc_pages+0x11f/0x280 mm/page_alloc.c:4567 __alloc_pages_bulk+0x442/0x6b0 mm/page_alloc.c:4515 alloc_pages_bulk_array_node include/linux/gfp.h:211 [inline] __page_pool_alloc_pages_slow+0x69/0x210 net/core/page_pool.c:488 page_pool_alloc include/net/page_pool/helpers.h:125 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:163 [inline] skb_pp_cow_data net/core/skbuff.c:952 [inline] skb_cow_data_for_xdp+0x372/0x560 net/core/skbuff.c:985 netif_skb_check_for_xdp net/core/dev.c:4959 [inline] netif_receive_generic_xdp net/core/dev.c:4998 [inline] do_xdp_generic+0xec/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 page last free pid 3490 tgid 3490 stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1140 [inline] free_unref_page_prepare+0x3db/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 vfree+0x7a/0xe0 mm/vmalloc.c:2842 delayed_vfree_work+0x1b/0x30 mm/vmalloc.c:2763 process_one_work kernel/workqueue.c:2633 [inline] process_scheduled_works+0x250/0x4d0 kernel/workqueue.c:2706 worker_thread+0x23d/0x300 kernel/workqueue.c:2787 kthread+0xe9/0x100 kernel/kthread.c:388 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242 Modules linked in: CPU: 0 PID: 4318 Comm: syz.2.15 Tainted: G B 6.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x83/0xd0 lib/dump_stack.c:106 bad_page+0xdd/0xf0 mm/page_alloc.c:514 free_page_is_bad mm/page_alloc.c:967 [inline] free_pages_prepare mm/page_alloc.c:1132 [inline] free_unref_page_prepare+0x453/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 bpf_xdp_shrink_data net/core/filter.c:4129 [inline] bpf_xdp_frags_shrink_tail+0x141/0x1e0 net/core/filter.c:4150 ____bpf_xdp_adjust_tail net/core/filter.c:4175 [inline] bpf_xdp_adjust_tail+0x75/0x80 net/core/filter.c:4168 ___bpf_prog_run+0x5f6/0x2280 kernel/bpf/core.c:1986 __bpf_prog_run32+0xbb/0xe0 kernel/bpf/core.c:2225 bpf_dispatcher_nop_func include/linux/bpf.h:1235 [inline] __bpf_prog_run include/linux/filter.h:651 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x12f/0x370 net/core/dev.c:4891 netif_receive_generic_xdp net/core/dev.c:5004 [inline] do_xdp_generic+0x1a2/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f9f4537e98f Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007f9f461a0020 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f9f45545fa0 RCX: 00007f9f4537e98f RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 00007f9f453f3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9f45545fa0 R15: 00007fff3e3c3428 BUG: Bad page state in process syz.2.15 pfn:116c67 page:ffffea00045b19c0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x116c67 flags: 0x100000000000000(node=0|zone=2) page_type: 0xffffffff() raw: 0100000000000000 dead000000000040 ffff888103298000 0000000000000000 raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102820(GFP_ATOMIC|__GFP_NOWARN|__GFP_HARDWALL), pid 4318, tgid 4317 (syz.2.15), ts 58675743206, free_ts 58369908702 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x15a/0x180 mm/page_alloc.c:1533 prep_new_page mm/page_alloc.c:1540 [inline] get_page_from_freelist+0x17b9/0x1920 mm/page_alloc.c:3311 __alloc_pages+0x11f/0x280 mm/page_alloc.c:4567 __alloc_pages_bulk+0x442/0x6b0 mm/page_alloc.c:4515 alloc_pages_bulk_array_node include/linux/gfp.h:211 [inline] __page_pool_alloc_pages_slow+0x69/0x210 net/core/page_pool.c:488 page_pool_alloc include/net/page_pool/helpers.h:125 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:163 [inline] skb_pp_cow_data net/core/skbuff.c:952 [inline] skb_cow_data_for_xdp+0x372/0x560 net/core/skbuff.c:985 netif_skb_check_for_xdp net/core/dev.c:4959 [inline] netif_receive_generic_xdp net/core/dev.c:4998 [inline] do_xdp_generic+0xec/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 page last free pid 3490 tgid 3490 stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1140 [inline] free_unref_page_prepare+0x3db/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 vfree+0x7a/0xe0 mm/vmalloc.c:2842 delayed_vfree_work+0x1b/0x30 mm/vmalloc.c:2763 process_one_work kernel/workqueue.c:2633 [inline] process_scheduled_works+0x250/0x4d0 kernel/workqueue.c:2706 worker_thread+0x23d/0x300 kernel/workqueue.c:2787 kthread+0xe9/0x100 kernel/kthread.c:388 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242 Modules linked in: CPU: 0 PID: 4318 Comm: syz.2.15 Tainted: G B 6.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x83/0xd0 lib/dump_stack.c:106 bad_page+0xdd/0xf0 mm/page_alloc.c:514 free_page_is_bad mm/page_alloc.c:967 [inline] free_pages_prepare mm/page_alloc.c:1132 [inline] free_unref_page_prepare+0x453/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 bpf_xdp_shrink_data net/core/filter.c:4129 [inline] bpf_xdp_frags_shrink_tail+0x141/0x1e0 net/core/filter.c:4150 ____bpf_xdp_adjust_tail net/core/filter.c:4175 [inline] bpf_xdp_adjust_tail+0x75/0x80 net/core/filter.c:4168 ___bpf_prog_run+0x5f6/0x2280 kernel/bpf/core.c:1986 __bpf_prog_run32+0xbb/0xe0 kernel/bpf/core.c:2225 bpf_dispatcher_nop_func include/linux/bpf.h:1235 [inline] __bpf_prog_run include/linux/filter.h:651 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x12f/0x370 net/core/dev.c:4891 netif_receive_generic_xdp net/core/dev.c:5004 [inline] do_xdp_generic+0x1a2/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f9f4537e98f Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007f9f461a0020 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f9f45545fa0 RCX: 00007f9f4537e98f RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 00007f9f453f3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9f45545fa0 R15: 00007fff3e3c3428 BUG: Bad page state in process syz.2.15 pfn:115b16 page:ffffea000456c580 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x115b16 flags: 0x100000000000000(node=0|zone=2) page_type: 0xffffffff() raw: 0100000000000000 dead000000000040 ffff888103298000 0000000000000000 raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102820(GFP_ATOMIC|__GFP_NOWARN|__GFP_HARDWALL), pid 4318, tgid 4317 (syz.2.15), ts 58675740029, free_ts 58369911674 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x15a/0x180 mm/page_alloc.c:1533 prep_new_page mm/page_alloc.c:1540 [inline] get_page_from_freelist+0x17b9/0x1920 mm/page_alloc.c:3311 __alloc_pages+0x11f/0x280 mm/page_alloc.c:4567 __alloc_pages_bulk+0x442/0x6b0 mm/page_alloc.c:4515 alloc_pages_bulk_array_node include/linux/gfp.h:211 [inline] __page_pool_alloc_pages_slow+0x69/0x210 net/core/page_pool.c:488 page_pool_alloc include/net/page_pool/helpers.h:125 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:163 [inline] skb_pp_cow_data net/core/skbuff.c:952 [inline] skb_cow_data_for_xdp+0x372/0x560 net/core/skbuff.c:985 netif_skb_check_for_xdp net/core/dev.c:4959 [inline] netif_receive_generic_xdp net/core/dev.c:4998 [inline] do_xdp_generic+0xec/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 page last free pid 3490 tgid 3490 stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1140 [inline] free_unref_page_prepare+0x3db/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 vfree+0x7a/0xe0 mm/vmalloc.c:2842 delayed_vfree_work+0x1b/0x30 mm/vmalloc.c:2763 process_one_work kernel/workqueue.c:2633 [inline] process_scheduled_works+0x250/0x4d0 kernel/workqueue.c:2706 worker_thread+0x23d/0x300 kernel/workqueue.c:2787 kthread+0xe9/0x100 kernel/kthread.c:388 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242 Modules linked in: CPU: 0 PID: 4318 Comm: syz.2.15 Tainted: G B 6.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x83/0xd0 lib/dump_stack.c:106 bad_page+0xdd/0xf0 mm/page_alloc.c:514 free_page_is_bad mm/page_alloc.c:967 [inline] free_pages_prepare mm/page_alloc.c:1132 [inline] free_unref_page_prepare+0x453/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 bpf_xdp_shrink_data net/core/filter.c:4129 [inline] bpf_xdp_frags_shrink_tail+0x141/0x1e0 net/core/filter.c:4150 ____bpf_xdp_adjust_tail net/core/filter.c:4175 [inline] bpf_xdp_adjust_tail+0x75/0x80 net/core/filter.c:4168 ___bpf_prog_run+0x5f6/0x2280 kernel/bpf/core.c:1986 __bpf_prog_run32+0xbb/0xe0 kernel/bpf/core.c:2225 bpf_dispatcher_nop_func include/linux/bpf.h:1235 [inline] __bpf_prog_run include/linux/filter.h:651 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x12f/0x370 net/core/dev.c:4891 netif_receive_generic_xdp net/core/dev.c:5004 [inline] do_xdp_generic+0x1a2/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f9f4537e98f Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007f9f461a0020 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f9f45545fa0 RCX: 00007f9f4537e98f RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 00007f9f453f3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9f45545fa0 R15: 00007fff3e3c3428 BUG: Bad page state in process syz.2.15 pfn:17b676 page:ffffea0005ed9d80 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x17b676 flags: 0x100000000000000(node=0|zone=2) page_type: 0xffffffff() raw: 0100000000000000 dead000000000040 ffff888103298000 0000000000000000 raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102820(GFP_ATOMIC|__GFP_NOWARN|__GFP_HARDWALL), pid 4318, tgid 4317 (syz.2.15), ts 58675736808, free_ts 58369914781 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x15a/0x180 mm/page_alloc.c:1533 prep_new_page mm/page_alloc.c:1540 [inline] get_page_from_freelist+0x17b9/0x1920 mm/page_alloc.c:3311 __alloc_pages+0x11f/0x280 mm/page_alloc.c:4567 __alloc_pages_bulk+0x442/0x6b0 mm/page_alloc.c:4515 alloc_pages_bulk_array_node include/linux/gfp.h:211 [inline] __page_pool_alloc_pages_slow+0x69/0x210 net/core/page_pool.c:488 page_pool_alloc include/net/page_pool/helpers.h:125 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:163 [inline] skb_pp_cow_data net/core/skbuff.c:952 [inline] skb_cow_data_for_xdp+0x372/0x560 net/core/skbuff.c:985 netif_skb_check_for_xdp net/core/dev.c:4959 [inline] netif_receive_generic_xdp net/core/dev.c:4998 [inline] do_xdp_generic+0xec/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 page last free pid 3490 tgid 3490 stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1140 [inline] free_unref_page_prepare+0x3db/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 vfree+0x7a/0xe0 mm/vmalloc.c:2842 delayed_vfree_work+0x1b/0x30 mm/vmalloc.c:2763 process_one_work kernel/workqueue.c:2633 [inline] process_scheduled_works+0x250/0x4d0 kernel/workqueue.c:2706 worker_thread+0x23d/0x300 kernel/workqueue.c:2787 kthread+0xe9/0x100 kernel/kthread.c:388 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242 Modules linked in: CPU: 0 PID: 4318 Comm: syz.2.15 Tainted: G B 6.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x83/0xd0 lib/dump_stack.c:106 bad_page+0xdd/0xf0 mm/page_alloc.c:514 free_page_is_bad mm/page_alloc.c:967 [inline] free_pages_prepare mm/page_alloc.c:1132 [inline] free_unref_page_prepare+0x453/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 bpf_xdp_shrink_data net/core/filter.c:4129 [inline] bpf_xdp_frags_shrink_tail+0x141/0x1e0 net/core/filter.c:4150 ____bpf_xdp_adjust_tail net/core/filter.c:4175 [inline] bpf_xdp_adjust_tail+0x75/0x80 net/core/filter.c:4168 ___bpf_prog_run+0x5f6/0x2280 kernel/bpf/core.c:1986 __bpf_prog_run32+0xbb/0xe0 kernel/bpf/core.c:2225 bpf_dispatcher_nop_func include/linux/bpf.h:1235 [inline] __bpf_prog_run include/linux/filter.h:651 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x12f/0x370 net/core/dev.c:4891 netif_receive_generic_xdp net/core/dev.c:5004 [inline] do_xdp_generic+0x1a2/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f9f4537e98f Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007f9f461a0020 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f9f45545fa0 RCX: 00007f9f4537e98f RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 00007f9f453f3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9f45545fa0 R15: 00007fff3e3c3428 BUG: Bad page state in process syz.2.15 pfn:117e0d page:ffffea00045f8340 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x117e0d flags: 0x100000000000000(node=0|zone=2) page_type: 0xffffffff() raw: 0100000000000000 dead000000000040 ffff888103298000 0000000000000000 raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102820(GFP_ATOMIC|__GFP_NOWARN|__GFP_HARDWALL), pid 4318, tgid 4317 (syz.2.15), ts 58675733328, free_ts 58369925988 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x15a/0x180 mm/page_alloc.c:1533 prep_new_page mm/page_alloc.c:1540 [inline] get_page_from_freelist+0x17b9/0x1920 mm/page_alloc.c:3311 __alloc_pages+0x11f/0x280 mm/page_alloc.c:4567 __alloc_pages_bulk+0x442/0x6b0 mm/page_alloc.c:4515 alloc_pages_bulk_array_node include/linux/gfp.h:211 [inline] __page_pool_alloc_pages_slow+0x69/0x210 net/core/page_pool.c:488 page_pool_alloc include/net/page_pool/helpers.h:125 [inline] page_pool_dev_alloc include/net/page_pool/helpers.h:163 [inline] skb_pp_cow_data net/core/skbuff.c:952 [inline] skb_cow_data_for_xdp+0x372/0x560 net/core/skbuff.c:985 netif_skb_check_for_xdp net/core/dev.c:4959 [inline] netif_receive_generic_xdp net/core/dev.c:4998 [inline] do_xdp_generic+0xec/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 page last free pid 3490 tgid 3490 stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1140 [inline] free_unref_page_prepare+0x3db/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 vfree+0x7a/0xe0 mm/vmalloc.c:2842 delayed_vfree_work+0x1b/0x30 mm/vmalloc.c:2763 process_one_work kernel/workqueue.c:2633 [inline] process_scheduled_works+0x250/0x4d0 kernel/workqueue.c:2706 worker_thread+0x23d/0x300 kernel/workqueue.c:2787 kthread+0xe9/0x100 kernel/kthread.c:388 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242 Modules linked in: CPU: 0 PID: 4318 Comm: syz.2.15 Tainted: G B 6.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x83/0xd0 lib/dump_stack.c:106 bad_page+0xdd/0xf0 mm/page_alloc.c:514 free_page_is_bad mm/page_alloc.c:967 [inline] free_pages_prepare mm/page_alloc.c:1132 [inline] free_unref_page_prepare+0x453/0x470 mm/page_alloc.c:2346 free_unref_page+0x37/0x260 mm/page_alloc.c:2486 bpf_xdp_shrink_data net/core/filter.c:4129 [inline] bpf_xdp_frags_shrink_tail+0x141/0x1e0 net/core/filter.c:4150 ____bpf_xdp_adjust_tail net/core/filter.c:4175 [inline] bpf_xdp_adjust_tail+0x75/0x80 net/core/filter.c:4168 ___bpf_prog_run+0x5f6/0x2280 kernel/bpf/core.c:1986 __bpf_prog_run32+0xbb/0xe0 kernel/bpf/core.c:2225 bpf_dispatcher_nop_func include/linux/bpf.h:1235 [inline] __bpf_prog_run include/linux/filter.h:651 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_prog_run_generic_xdp+0x12f/0x370 net/core/dev.c:4891 netif_receive_generic_xdp net/core/dev.c:5004 [inline] do_xdp_generic+0x1a2/0x300 net/core/dev.c:5063 __netif_receive_skb_core+0x61b/0xf20 net/core/dev.c:5404 __netif_receive_skb_one_core net/core/dev.c:5582 [inline] __netif_receive_skb+0x3b/0x160 net/core/dev.c:5698 netif_receive_skb_internal net/core/dev.c:5784 [inline] netif_receive_skb+0x78/0x1f0 net/core/dev.c:5843 tun_rx_batched+0x1be/0x200 tun_get_user+0xf4a/0x12f0 drivers/net/tun.c:2007 tun_chr_write_iter+0x5a/0xc0 drivers/net/tun.c:2053 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x3f9/0x4c0 fs/read_write.c:590 ksys_write+0x70/0xe0 fs/read_write.c:643 do_syscall_64+0x94/0x1a0 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f9f4537e98f Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007f9f461a0020 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f9f45545fa0 RCX: 00007f9f4537e98f RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8 RBP: 00007f9f453f3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000011dc0 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9f45545fa0 R15: 00007fff3e3c3428