ci starts bisection 2024-11-12 23:35:47.950474881 +0000 UTC m=+36.374497652 bisecting cause commit starting from a58f00ed24b849d449f7134fd5d86f07090fe2f5 building syzkaller on 75bb1b32609dc8e20e442a992f648e465c66cdf3 ensuring issue is reproducible on original commit a58f00ed24b849d449f7134fd5d86f07090fe2f5 testing commit a58f00ed24b849d449f7134fd5d86f07090fe2f5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1bf159bf672deca9c1f3e80ede4099e8dd3bae42c821752ce60e727b02db7666 all runs: crashed: WARNING in sk_skb_reason_drop representative crash: WARNING in sk_skb_reason_drop, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit a58f00ed24b849d449f7134fd5d86f07090fe2f5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d047373f8d300daa95ba1eccc5a4a64e6596cca153f196e5bc0e9a47e8fc921b all runs: crashed: WARNING in sk_skb_reason_drop representative crash: WARNING in sk_skb_reason_drop, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed kconfig minimization: base=4045 full=8196 leaves diff=2112 split chunks (needed=false): <2112> split chunk #0 of len 2112 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit a58f00ed24b849d449f7134fd5d86f07090fe2f5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 162df6c640e69a26fb2bd8d03c33ac2d6dcb37fdb9472381dd2222c0f8e55714 all runs: crashed: WARNING in sk_skb_reason_drop representative crash: WARNING in sk_skb_reason_drop, types: [WARNING] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit a58f00ed24b849d449f7134fd5d86f07090fe2f5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e2809b544b563216d07549b5dddf8a49afe2fd1678f2cb135be903c470736782 run #0: basic kernel testing failed: lost connection to test machine run #1: crashed: WARNING in sk_skb_reason_drop run #2: crashed: WARNING in sk_skb_reason_drop run #3: crashed: WARNING in sk_skb_reason_drop run #4: crashed: WARNING in sk_skb_reason_drop run #5: crashed: WARNING in sk_skb_reason_drop run #6: crashed: WARNING in sk_skb_reason_drop run #7: crashed: WARNING in sk_skb_reason_drop run #8: crashed: WARNING in sk_skb_reason_drop run #9: crashed: WARNING in sk_skb_reason_drop representative crash: WARNING in sk_skb_reason_drop, types: [WARNING] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit a58f00ed24b849d449f7134fd5d86f07090fe2f5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 30c2e2de451afc1e90a9830e537bfc92ca9831c2fb66e973e74386df3a9d7170 all runs: crashed: WARNING in sk_skb_reason_drop representative crash: WARNING in sk_skb_reason_drop, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit a58f00ed24b849d449f7134fd5d86f07090fe2f5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fcb746cc6afba9f7adeaeb00e11459af9fad668255c80fcea9e6087810907345 all runs: crashed: WARNING in sk_skb_reason_drop representative crash: WARNING in sk_skb_reason_drop, types: [WARNING] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit a58f00ed24b849d449f7134fd5d86f07090fe2f5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 09f55c098001de77b4706b3e3248d9029056efc2787b183b2cb12a92920a5d1d all runs: OK false negative chance: 0.000 minimized to 420 configs; suspects: [ARCH_ENABLE_MEMORY_HOTREMOVE ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CMA COMMON_CLK CONTIG_ALLOC DVB_CORE EXTCON FB GPIOLIB HID_ZEROPLUS I2C_MUX IIO IOMMUFD IRQ_REMAP KVM KVM_INTEL LIBNVDIMM 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_VIPERBOARD NOP_USB_XCEIV PARPORT PCCARD PCMCIA PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RC_CORE RFKILL SND SOUND SPI SSB TAP TARGET_CORE TUN USB_AMD5536UDC USB_ATM 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_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_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_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 WANT_DEV_COREDUMP WEXT_CORE WEXT_PRIV WEXT_PROC WIREGUARD WIRELESS WIRELESS_EXT 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 ZPOOL ZRAM ZRAM_BACKEND_FORCE_LZO ZRAM_BACKEND_LZO ZRAM_DEF_COMP_LZO ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_842 ZSWAP_DEFAULT_ON ZSWAP_SHRINKER_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_Z3FOLD_DEPRECATED] disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed picked [v6.11 v6.10 v6.9 v6.7 v6.5 v6.3 v6.1 v5.19 v5.16 v5.13 v5.10 v5.7 v5.4 v5.1 v4.19] out of 34 release tags testing release v6.11 testing commit 98f7e32f20d28ec452afb208f9cffc08448a2652 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 63cd982d071aca98e15c1c6ff1d5fb57488a19a6f1214c71fa6c9e4189e0bc50 all runs: OK false negative chance: 0.000 # git bisect start a58f00ed24b849d449f7134fd5d86f07090fe2f5 98f7e32f20d28ec452afb208f9cffc08448a2652 Bisecting: 7542 revisions left to test after this (roughly 13 steps) [617a814f14b8914271f7a70366d72c6196d17663] Merge tag 'mm-stable-2024-09-20-02-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm testing commit 617a814f14b8914271f7a70366d72c6196d17663 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8a70d219c1c8b1b1f0eda3c30106b0941b7bc22e7a465791660c969e7cdbf7e8 all runs: OK false negative chance: 0.000 # git bisect good 617a814f14b8914271f7a70366d72c6196d17663 Bisecting: 3768 revisions left to test after this (roughly 12 steps) [3630400697a3d334a391c1dba1b601d852145f2c] Merge tag 'loongarch-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson testing commit 3630400697a3d334a391c1dba1b601d852145f2c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8f5aaa6a4f25f1911e68e218cea6088f4aee2d429c84ad6c55146be8864d1f38 all runs: OK false negative chance: 0.000 # git bisect good 3630400697a3d334a391c1dba1b601d852145f2c Bisecting: 1883 revisions left to test after this (roughly 11 steps) [b5abbf612092ebb3e026c0c4756a109d8750f5a5] Merge branch 'mptcp-sched-fix-some-lock-issues' testing commit b5abbf612092ebb3e026c0c4756a109d8750f5a5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9b168b072d99d4a028a103f895e6abbfdcc5d394a0590b70eca0d1f1069a8cc8 all runs: OK false negative chance: 0.000 # git bisect good b5abbf612092ebb3e026c0c4756a109d8750f5a5 Bisecting: 1018 revisions left to test after this (roughly 10 steps) [9e114ec8084020e10e1cb7b43dbbf6e69940866b] net: phy: dp83822: Configure RMII mode on DP83825 devices testing commit 9e114ec8084020e10e1cb7b43dbbf6e69940866b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1af1c6f9c464a43168c5f25b2f4ba31d0aca1ad1c23ab00bb59894658205fa38 all runs: OK false negative chance: 0.000 # git bisect good 9e114ec8084020e10e1cb7b43dbbf6e69940866b Bisecting: 515 revisions left to test after this (roughly 9 steps) [d5aaa0bc6de9c2649fa15def775a6710c052c966] Merge tag 'phy-fixes-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy testing commit d5aaa0bc6de9c2649fa15def775a6710c052c966 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b8f1a21945fd3af8dc8c8f0745d497bd1c9a13d7881c8e42a70ee1396eff594c all runs: OK false negative chance: 0.000 # git bisect good d5aaa0bc6de9c2649fa15def775a6710c052c966 Bisecting: 326 revisions left to test after this (roughly 8 steps) [702c290a1cb16f4a64567cae0bedb848399f7915] sctp: Avoid enqueuing addr events redundantly testing commit 702c290a1cb16f4a64567cae0bedb848399f7915 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7f09ba7af1e3f855276c66d96adde1d705ba513f8da86a8d42daef8cdcdf5b8a all runs: OK false negative chance: 0.000 # git bisect good 702c290a1cb16f4a64567cae0bedb848399f7915 Bisecting: 143 revisions left to test after this (roughly 7 steps) [bfc64d9b7e8cac82be6b8629865e137d962578f8] Merge tag 'net-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit bfc64d9b7e8cac82be6b8629865e137d962578f8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 261106bd719595a7c1c732e44bf6e245cdb1034e9ec5daae5a49f45f5326ecef all runs: OK false negative chance: 0.000 # git bisect good bfc64d9b7e8cac82be6b8629865e137d962578f8 Bisecting: 71 revisions left to test after this (roughly 6 steps) [75e3f12fa51b758f6b8d7684b65b4684386e7706] selftests: hsr: Add test for VLAN testing commit 75e3f12fa51b758f6b8d7684b65b4684386e7706 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ed1c05eb90391816a7401cfef393cff886bd8d847595734adc38cfd2554a5d09 all runs: OK false negative chance: 0.000 # git bisect good 75e3f12fa51b758f6b8d7684b65b4684386e7706 Bisecting: 35 revisions left to test after this (roughly 5 steps) [8a6de2627fd37b76c6e8e77fa6c0fe82888e3fc3] eventpoll: Control irq suspension for prefer_busy_poll testing commit 8a6de2627fd37b76c6e8e77fa6c0fe82888e3fc3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bb7dba6871832f7fa1d4168f79fb2e225667c45aaaa40b6ab3ab6c1eea8fa201 all runs: OK false negative chance: 0.000 # git bisect good 8a6de2627fd37b76c6e8e77fa6c0fe82888e3fc3 Bisecting: 17 revisions left to test after this (roughly 4 steps) [be034baba83e2a80a0b2c0f24c08547b6eedc79a] net/mlx5: Make vport QoS enablement more flexible for future extensions testing commit be034baba83e2a80a0b2c0f24c08547b6eedc79a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 40de57425852b563d4d38b9d46ba84565ef7a09447c0ef712066b3ac34f4c5ae all runs: OK false negative chance: 0.000 # git bisect good be034baba83e2a80a0b2c0f24c08547b6eedc79a Bisecting: 8 revisions left to test after this (roughly 3 steps) [d46f827016d891dbc234cb05c406180f77fb3b2d] net: ip: make ip_mc_validate_source() return drop reason testing commit d46f827016d891dbc234cb05c406180f77fb3b2d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5b8d6b2c62dfa17b14e1cbc890cf75da7062365284c09f4d049f06ebe4dd8f26 all runs: OK false negative chance: 0.000 # git bisect good d46f827016d891dbc234cb05c406180f77fb3b2d Bisecting: 4 revisions left to test after this (roughly 2 steps) [50038bf38e6577a15d52b890d82c197cf3b163a0] net: ip: make ip_route_input() return drop reasons testing commit 50038bf38e6577a15d52b890d82c197cf3b163a0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4d51f45a906f6b3d732c1ac33cdd9abcc5b2b9080bdc9aff91617995f5c1e490 all runs: crashed: WARNING in sk_skb_reason_drop representative crash: WARNING in sk_skb_reason_drop, types: [WARNING] # git bisect bad 50038bf38e6577a15d52b890d82c197cf3b163a0 Bisecting: 1 revision left to test after this (roughly 1 step) [61b95c70f3449c1c0bd1415c8ef37e2959cf1c41] net: ip: make ip_route_input_rcu() return drop reasons testing commit 61b95c70f3449c1c0bd1415c8ef37e2959cf1c41 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b29da1f1600fa3835bade058b863950a1448cf63c41ee6e68afaa7c5fc9e3623 all runs: OK false negative chance: 0.000 # git bisect good 61b95c70f3449c1c0bd1415c8ef37e2959cf1c41 Bisecting: 0 revisions left to test after this (roughly 0 steps) [82d9983ebeb871cb5abd27c12a950c14c68772e1] net: ip: make ip_route_input_noref() return drop reasons testing commit 82d9983ebeb871cb5abd27c12a950c14c68772e1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c2b65791fd550ae68942936b6e8208b12555eb20faf097f31610443c149a8e04 all runs: crashed: WARNING in sk_skb_reason_drop representative crash: WARNING in sk_skb_reason_drop, types: [WARNING] # git bisect bad 82d9983ebeb871cb5abd27c12a950c14c68772e1 82d9983ebeb871cb5abd27c12a950c14c68772e1 is the first bad commit commit 82d9983ebeb871cb5abd27c12a950c14c68772e1 Author: Menglong Dong Date: Thu Nov 7 20:55:58 2024 +0800 net: ip: make ip_route_input_noref() return drop reasons In this commit, we make ip_route_input_noref() return drop reasons, which come from ip_route_input_rcu(). We need adjust the callers of ip_route_input_noref() to make sure the return value of ip_route_input_noref() is used properly. The errno that ip_route_input_noref() returns comes from ip_route_input and bpf_lwt_input_reroute in the origin logic, and we make them return -EINVAL on error instead. In the following patch, we will make ip_route_input() returns drop reasons too. Signed-off-by: Menglong Dong Signed-off-by: Paolo Abeni include/net/route.h | 15 ++++++++------- net/core/lwt_bpf.c | 6 ++++-- net/ipv4/ip_fragment.c | 11 ++++++----- net/ipv4/ip_input.c | 7 ++++--- net/ipv4/route.c | 7 ++++--- 5 files changed, 26 insertions(+), 20 deletions(-) accumulated error probability: 0.00 culprit signature: c2b65791fd550ae68942936b6e8208b12555eb20faf097f31610443c149a8e04 parent signature: b29da1f1600fa3835bade058b863950a1448cf63c41ee6e68afaa7c5fc9e3623 revisions tested: 22, total time: 6h31m58.649440643s (build: 3h3m21.028553962s, test: 2h45m10.690818859s) first bad commit: 82d9983ebeb871cb5abd27c12a950c14c68772e1 net: ip: make ip_route_input_noref() return drop reasons recipients (to): ["dongml2@chinatelecom.cn" "menglong8.dong@gmail.com" "pabeni@redhat.com"] recipients (cc): [] crash: WARNING in sk_skb_reason_drop netlink: 'syz.2.15': attribute type 4 has an invalid length. ------------[ cut here ]------------ WARNING: CPU: 1 PID: 3852 at net/core/skbuff.c:1219 __sk_skb_reason_drop net/core/skbuff.c:1216 [inline] WARNING: CPU: 1 PID: 3852 at net/core/skbuff.c:1219 sk_skb_reason_drop+0x32/0x120 net/core/skbuff.c:1241 Modules linked in: CPU: 1 UID: 0 PID: 3852 Comm: syz.2.15 Not tainted 6.12.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:__sk_skb_reason_drop net/core/skbuff.c:1216 [inline] RIP: 0010:sk_skb_reason_drop+0x32/0x120 net/core/skbuff.c:1241 Code: 74 2f 48 89 f3 b8 ff ff ff ff f0 0f c1 86 d4 00 00 00 83 f8 01 75 18 89 d1 49 89 f8 8d 81 00 00 fc ff 3d 00 00 fc ff 77 0e 90 <0f> 0b 90 eb 1c 7c 54 5b c3 cc cc cc cc 83 f9 01 75 0f 48 8b 74 24 RSP: 0018:ffffc90001383878 EFLAGS: 00010283 RAX: 00000000fffbffea RBX: ffff888114e20100 RCX: 00000000ffffffea RDX: 00000000ffffffea RSI: ffff888114e20100 RDI: 0000000000000000 RBP: 00000000ffffffea R08: 0000000000000000 R09: ffffc90001383818 R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90001383968 R13: ffff888114e20100 R14: ffff888107ad7000 R15: ffff8881191f0000 FS: 00007fcdfb9ef6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000011b484000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kfree_skb_reason include/linux/skbuff.h:1263 [inline] ip_rcv_finish_core+0x220/0x480 net/ipv4/ip_input.c:425 ip_list_rcv_finish net/ipv4/ip_input.c:611 [inline] ip_sublist_rcv+0xa5/0x250 net/ipv4/ip_input.c:637 ip_list_rcv+0x14d/0x180 net/ipv4/ip_input.c:671 __netif_receive_skb_list_ptype net/core/dev.c:5715 [inline] __netif_receive_skb_list_core+0x2b3/0x2d0 net/core/dev.c:5762 __netif_receive_skb_list net/core/dev.c:5814 [inline] netif_receive_skb_list_internal+0x234/0x310 net/core/dev.c:5905 netif_receive_skb_list+0x1c/0x190 net/core/dev.c:5957 xdp_recv_frames net/bpf/test_run.c:280 [inline] xdp_test_run_batch net/bpf/test_run.c:361 [inline] bpf_test_run_xdp_live+0x8e3/0xa90 net/bpf/test_run.c:390 bpf_prog_test_run_xdp+0x2d1/0x4b0 net/bpf/test_run.c:1318 bpf_prog_test_run+0xdf/0x100 kernel/bpf/syscall.c:4266 __sys_bpf+0x2ff/0x5a0 kernel/bpf/syscall.c:5671 __do_sys_bpf kernel/bpf/syscall.c:5760 [inline] __se_sys_bpf kernel/bpf/syscall.c:5758 [inline] __x64_sys_bpf+0x17/0x20 kernel/bpf/syscall.c:5758 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xe0/0x220 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcdfbf6e719 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:00007fcdfb9ef038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fcdfc125f80 RCX: 00007fcdfbf6e719 RDX: 0000000000000048 RSI: 0000000020000600 RDI: 000000000000000a RBP: 00007fcdfbfe1616 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fcdfc125f80 R15: 00007ffcd346c1c8