ci starts bisection 2025-07-02 13:46:57.646209533 +0000 UTC m=+4837.749731762 bisecting cause commit starting from cce3fee729ee18caa03bade7f4c360343e863bb1 building syzkaller on ffe4b334cb3673050f6078356393ce4b76adfc54 ensuring issue is reproducible on original commit cce3fee729ee18caa03bade7f4c360343e863bb1 testing commit cce3fee729ee18caa03bade7f4c360343e863bb1 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 4caf49104ae1dbdbe2aa7b937ba8743a47b86d054f27626b72f34d33f0e68295 all runs: crashed: WARNING in check_helper_call representative crash: WARNING in check_helper_call, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed testing commit cce3fee729ee18caa03bade7f4c360343e863bb1 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 26629c7ea3b4588d2e60dfea5d279c09863bb06684c94f7eff30a4c5c79863b1 all runs: crashed: WARNING in check_helper_call representative crash: WARNING in check_helper_call, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [atomic_sleep hang memleak ubsan kasan locking], they are not needed kconfig minimization: base=4095 full=8363 leaves diff=2126 split chunks (needed=false): <2126> split chunk #0 of len 2126 into 5 parts testing without sub-chunk 1/5 disabling configs for [ubsan kasan locking atomic_sleep hang memleak], they are not needed testing commit cce3fee729ee18caa03bade7f4c360343e863bb1 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: e1c78e69716e8d9a274be20aff3225ec64596e50f3e3ae51432ee475d8935111 all runs: crashed: WARNING in check_helper_call representative crash: WARNING in check_helper_call, types: [WARNING] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [memleak ubsan kasan locking atomic_sleep hang], they are not needed testing commit cce3fee729ee18caa03bade7f4c360343e863bb1 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 2d856e5c4ca872d81705aa5a50fc6d79be4cfd1768c349297cc5d17e0365f515 all runs: crashed: WARNING in check_helper_call representative crash: WARNING in check_helper_call, types: [WARNING] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [locking atomic_sleep hang memleak ubsan kasan], they are not needed testing commit cce3fee729ee18caa03bade7f4c360343e863bb1 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 66d549ab9be50128d81482c5e09bdf85f0b2df7985e4d40712c21f8a780e03b8 all runs: crashed: WARNING in check_helper_call representative crash: WARNING in check_helper_call, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed testing commit cce3fee729ee18caa03bade7f4c360343e863bb1 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: f66b948a6598eeda00eaa3d47ac3197d0ac853d376bb3eb541ea361552926c26 all runs: crashed: WARNING in check_helper_call representative crash: WARNING in check_helper_call, types: [WARNING] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed testing commit cce3fee729ee18caa03bade7f4c360343e863bb1 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 71fbd299f41bcc06c955104347f5f6fbb1730b79544cc8a1473e96b193fc9582 all runs: OK false negative chance: 0.000 minimized to 422 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 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_CDC_PHONET USB_CDNS2_UDC USB_CDNS3 USB_CDNS3_GADGET USB_CDNS3_HOST USB_CDNS3_PCI_WRAP USB_CDNSP_GADGET USB_CDNSP_HOST USB_CDNSP_PCI USB_CDNS_HOST USB_CDNS_SUPPORT USB_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_GENERIC USB_CHIPIDEA_HOST USB_CHIPIDEA_MSM USB_CHIPIDEA_NPCM USB_CHIPIDEA_PCI USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_CONFIGFS_F_FS USB_CONFIGFS_F_HID USB_CONFIGFS_F_LB_SS USB_CONFIGFS_F_MIDI USB_CONFIGFS_F_MIDI2 USB_CONFIGFS_F_PRINTER USB_CONFIGFS_F_TCM USB_CONFIGFS_F_UAC1 USB_CONFIGFS_F_UAC1_LEGACY USB_CONFIGFS_F_UAC2 USB_CONFIGFS_F_UVC USB_CONFIGFS_MASS_STORAGE USB_CONFIGFS_NCM USB_CONFIGFS_OBEX USB_CONFIGFS_PHONET USB_CONFIGFS_RNDIS USB_CONFIGFS_SERIAL USB_CONN_GPIO USB_CXACRU USB_CYPRESS_CY7C63 USB_CYTHERM USB_DSBR USB_DUMMY_HCD USB_DWC2 USB_DWC2_HOST USB_DWC2_PCI USB_DWC3 USB_DWC3_GADGET USB_DWC3_HAPS USB_DWC3_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI USB_DYNAMIC_MINORS USB_EG20T USB_EHCI_FSL USB_EHCI_HCD_PLATFORM USB_EHCI_ROOT_HUB_TT USB_EHSET_TEST_FIXTURE USB_EMI26 USB_EMI62 USB_EPSON2888 USB_EZUSB_FX2 USB_FEW_INIT_RETRIES USB_F_ACM USB_F_ECM USB_F_EEM USB_F_FS USB_F_HID USB_F_MASS_STORAGE USB_F_MIDI USB_F_MIDI2 USB_F_NCM USB_F_OBEX USB_F_PHONET USB_F_PRINTER USB_F_RNDIS USB_F_SERIAL USB_F_SS_LB USB_F_SUBSET USB_F_TCM USB_F_UAC1 USB_F_UAC1_LEGACY USB_F_UAC2 USB_F_UVC USB_GADGET USB_GADGETFS USB_GADGET_DEBUG_FILES USB_GADGET_DEBUG_FS USB_GL860 USB_GOKU USB_GR_UDC USB_GSPCA USB_GSPCA_BENQ USB_GSPCA_CONEX USB_GSPCA_CPIA1 USB_GSPCA_DTCS033 USB_GSPCA_ETOMS USB_GSPCA_FINEPIX USB_GSPCA_JEILINJ USB_GSPCA_JL2005BCD USB_GSPCA_KINECT USB_GSPCA_KONICA USB_GSPCA_MARS USB_GSPCA_MR97310A USB_GSPCA_NW80X USB_GSPCA_OV519 USB_GSPCA_OV534 USB_GSPCA_OV534_9 USB_GSPCA_PAC207 USB_GSPCA_PAC7302 USB_GSPCA_PAC7311 USB_GSPCA_SE401 USB_GSPCA_SN9C2028 USB_GSPCA_SN9C20X USB_GSPCA_SONIXB USB_GSPCA_SONIXJ USB_GSPCA_SPCA1528 USB_GSPCA_SPCA500 USB_GSPCA_SPCA501 USB_GSPCA_SPCA505 USB_GSPCA_SPCA506 USB_GSPCA_SPCA508 USB_GSPCA_SPCA561 USB_GSPCA_SQ905 USB_GSPCA_SQ905C USB_GSPCA_SQ930X USB_GSPCA_STK014 USB_GSPCA_STK1135 USB_GSPCA_STV0680 USB_GSPCA_SUNPLUS USB_GSPCA_T613 USB_GSPCA_TOPRO USB_GSPCA_TOUPTEK USB_GSPCA_TV8532 USB_GSPCA_VC032X USB_GSPCA_VICAM USB_GSPCA_XIRLINK_CIT USB_GSPCA_ZC3XX USB_HACKRF USB_HCD_BCMA USB_HCD_SSB USB_HSIC_USB3503 USB_HSIC_USB4604 USB_HSO USB_HUB_USB251XB USB_IDMOUSE USB_IOWARRIOR USB_IPHETH USB_ISIGHTFW USB_ISP116X_HCD USB_ISP1301 USB_ISP1760 USB_ISP1760_DUAL_ROLE USB_ISP1760_HCD USB_ISP1761_UDC USB_KAWETH USB_KC2190 USB_KEENE USB_LAN78XX USB_LCD USB_LD USB_LEDS_TRIGGER_USBPORT USB_LED_TRIG USB_LEGOTOWER USB_LGM_PHY USB_LIBCOMPOSITE USB_LINK_LAYER_TEST USB_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_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_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_PROC WIREGUARD WIRELESS WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_SILABS X86_SGX X86_SGX_KVM X86_USER_SHADOW_STACK 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 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_ZSMALLOC] disabling configs for [ubsan kasan locking atomic_sleep hang memleak], they are not needed picked [v6.15 v6.14 v6.13 v6.11 v6.9 v6.7 v6.5 v6.3 v6.0 v5.17 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 38 release tags testing release v6.15 testing commit 0ff41df1cb268fc69e703a08a57ee14ae967d0ca gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 9fd9bcb7e568a37e7ffa916fa58e3cc2b162b2529665e16c760c426cef4f0f2c all runs: OK false negative chance: 0.000 # git bisect start cce3fee729ee18caa03bade7f4c360343e863bb1 0ff41df1cb268fc69e703a08a57ee14ae967d0ca Bisecting: 7047 revisions left to test after this (roughly 13 steps) [1b98f357dadd6ea613a435fbaef1a5dd7b35fd21] Merge tag 'net-next-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next testing commit 1b98f357dadd6ea613a435fbaef1a5dd7b35fd21 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 77c1bf7e33eafcb0719bfda8764b9484c3b465495878ab27c7b7a08c88d4bf50 all runs: OK false negative chance: 0.000 # git bisect good 1b98f357dadd6ea613a435fbaef1a5dd7b35fd21 Bisecting: 3539 revisions left to test after this (roughly 12 steps) [fe4281644c62ce9385d3b9165e27d6c86ae0a845] Merge tag 'gfs2-for-6.16-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2 testing commit fe4281644c62ce9385d3b9165e27d6c86ae0a845 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 7a287324424405aa998e693bc68ffc27682decf432d17b56279733d7b7e6e550 all runs: OK false negative chance: 0.000 # git bisect good fe4281644c62ce9385d3b9165e27d6c86ae0a845 Bisecting: 1877 revisions left to test after this (roughly 11 steps) [a100922a3855eb35ecd465f1d558546b1e144445] Merge tag 'staging-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging testing commit a100922a3855eb35ecd465f1d558546b1e144445 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: af11e6e1c9faa2847026d4a64d0f8df47f16d5e72f87457a0f78e2d22ee24592 all runs: OK false negative chance: 0.000 # git bisect good a100922a3855eb35ecd465f1d558546b1e144445 Bisecting: 946 revisions left to test after this (roughly 10 steps) [b3154a6ff1f53b794c01096577700f35b1be9cc2] Merge tag 'sh-for-v6.16-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux testing commit b3154a6ff1f53b794c01096577700f35b1be9cc2 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 0f2f8c60ff276ae92bd059e68f2290003ee80e6b53058119fc6d4663656742bc all runs: OK false negative chance: 0.000 # git bisect good b3154a6ff1f53b794c01096577700f35b1be9cc2 Bisecting: 457 revisions left to test after this (roughly 9 steps) [5c8013ae2e86ec36b07500ba4cacb14ab4d6f728] Merge tag 'net-6.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit 5c8013ae2e86ec36b07500ba4cacb14ab4d6f728 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 995b51d9b5b52abc269a98075b7f3e5850d57e3524a4fe40b7e7da0ce4bf7d01 all runs: OK false negative chance: 0.000 # git bisect good 5c8013ae2e86ec36b07500ba4cacb14ab4d6f728 Bisecting: 232 revisions left to test after this (roughly 8 steps) [2d65fc13be85c336c56af7077f08ccd3a3a15a4a] um: vector: Reduce stack usage in vector_eth_configure() testing commit 2d65fc13be85c336c56af7077f08ccd3a3a15a4a gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 551f51ea31e13d19b22eafe704efe6e1a3e54249279352e3001a1884c730ae23 all runs: OK false negative chance: 0.000 # git bisect good 2d65fc13be85c336c56af7077f08ccd3a3a15a4a Bisecting: 120 revisions left to test after this (roughly 7 steps) [e34a79b96ab9d49ed8b605fee11099cf3efbb428] Merge tag 'net-6.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit e34a79b96ab9d49ed8b605fee11099cf3efbb428 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 46494bbba2106ada9f65ad90fe484c5fdecd86cb417f134405c0d3c416cf2ee4 all runs: OK false negative chance: 0.000 # git bisect good e34a79b96ab9d49ed8b605fee11099cf3efbb428 Bisecting: 60 revisions left to test after this (roughly 6 steps) [96fcf7e7a71c2b21c002e9ba9362d88f8beac09a] selftests/bpf: Fix two net related test failures with 64K page size testing commit 96fcf7e7a71c2b21c002e9ba9362d88f8beac09a gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: e5a030573f664147a117738424a1c89a8cdddfe23c1036b1eed1d1611b569487 all runs: OK false negative chance: 0.000 # git bisect good 96fcf7e7a71c2b21c002e9ba9362d88f8beac09a Bisecting: 30 revisions left to test after this (roughly 5 steps) [0967f5399b64aafb0bff1e76bca45446a3e1b6af] Merge branch 'range-tracking-for-bpf_neg' testing commit 0967f5399b64aafb0bff1e76bca45446a3e1b6af gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 76cc661931504b768abfeea206037f6572ab1d13f91ff835567462369074e89a all runs: OK false negative chance: 0.000 # git bisect good 0967f5399b64aafb0bff1e76bca45446a3e1b6af Bisecting: 15 revisions left to test after this (roughly 4 steps) [6def0822d211df4bfb3276eac42f541dc9cc9fb8] Merge branch 'support-array-presets-in-veristat' testing commit 6def0822d211df4bfb3276eac42f541dc9cc9fb8 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: a37d88d4f60a25bb672f2978ed7859e000ee7af4cba311f452810926a0636bbe all runs: OK false negative chance: 0.000 # git bisect good 6def0822d211df4bfb3276eac42f541dc9cc9fb8 Bisecting: 7 revisions left to test after this (roughly 3 steps) [a5a7b25d7535ce5d8db0c121ef588bc6ca3a39dc] bpf: guard BTF_ID_FLAGS(bpf_cgroup_read_xattr) with CONFIG_BPF_LSM testing commit a5a7b25d7535ce5d8db0c121ef588bc6ca3a39dc gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 5764ecd095727928a09bdf1f297c71a5085054fa5a5e34b1b01e9f42037bbb85 all runs: OK false negative chance: 0.000 # git bisect good a5a7b25d7535ce5d8db0c121ef588bc6ca3a39dc Bisecting: 3 revisions left to test after this (roughly 2 steps) [b2268d550d20ff860bddfe3a91b1aec00414689a] s390/bpf: Centralize frame offset calculations testing commit b2268d550d20ff860bddfe3a91b1aec00414689a gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 463c684e12bf9a984ae8b7722c68fe2e570c34d783028359595f6dc288478092 all runs: OK false negative chance: 0.000 # git bisect good b2268d550d20ff860bddfe3a91b1aec00414689a Bisecting: 1 revision left to test after this (roughly 1 step) [26d0e5324677dc0acce4c0fda52316154a1d689e] Merge branch 's390-bpf-describe-the-frame-using-a-struct-instead-of-constants' testing commit 26d0e5324677dc0acce4c0fda52316154a1d689e gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 48d87d0720f6e43b57583bbcb425302c7c4e68f0d6b384f470a75269a681c719 all runs: OK false negative chance: 0.000 # git bisect good 26d0e5324677dc0acce4c0fda52316154a1d689e Bisecting: 0 revisions left to test after this (roughly 0 steps) [0df1a55afa832f463f9ad68ddc5de92230f1bc8a] bpf: Warn on internal verifier errors testing commit 0df1a55afa832f463f9ad68ddc5de92230f1bc8a gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: d30f3e359952fe5632de60e4844f0f425ca1542852677cf53f0ba85c8eca4954 all runs: crashed: WARNING in check_helper_call representative crash: WARNING in check_helper_call, types: [WARNING] # git bisect bad 0df1a55afa832f463f9ad68ddc5de92230f1bc8a 0df1a55afa832f463f9ad68ddc5de92230f1bc8a is the first bad commit commit 0df1a55afa832f463f9ad68ddc5de92230f1bc8a Author: Paul Chaignon Date: Tue Jul 1 20:36:15 2025 +0200 bpf: Warn on internal verifier errors This patch is a follow up to commit 1cb0f56d9618 ("bpf: WARN_ONCE on verifier bugs"). It generalizes the use of verifier_error throughout the verifier, in particular for logs previously marked "verifier internal error". As a consequence, all of those verifier bugs will now come with a kernel warning (under CONFIG_DBEUG_KERNEL) detectable by fuzzers. While at it, some error messages that were too generic (ex., "bpf verifier is misconfigured") have been reworded. Signed-off-by: Paul Chaignon Link: https://lore.kernel.org/r/aGQqnzMyeagzgkCK@Tunnel Signed-off-by: Alexei Starovoitov kernel/bpf/verifier.c | 211 ++++++++++++++++++++++++-------------------------- 1 file changed, 102 insertions(+), 109 deletions(-) accumulated error probability: 0.00 culprit signature: d30f3e359952fe5632de60e4844f0f425ca1542852677cf53f0ba85c8eca4954 parent signature: 48d87d0720f6e43b57583bbcb425302c7c4e68f0d6b384f470a75269a681c719 revisions tested: 22, total time: 8h16m20.15220221s (build: 5h7m47.283104485s, test: 2h43m55.665754888s) first bad commit: 0df1a55afa832f463f9ad68ddc5de92230f1bc8a bpf: Warn on internal verifier errors recipients (to): ["ast@kernel.org" "ast@kernel.org" "bpf@vger.kernel.org" "daniel@iogearbox.net" "paul.chaignon@gmail.com"] recipients (cc): ["andrii@kernel.org" "eddyz87@gmail.com" "haoluo@google.com" "john.fastabend@gmail.com" "jolsa@kernel.org" "kpsingh@kernel.org" "linux-kernel@vger.kernel.org" "martin.lau@linux.dev" "sdf@fomichev.me" "song@kernel.org" "yonghong.song@linux.dev"] crash: WARNING in check_helper_call ------------[ cut here ]------------ verifier bug: more than one arg with ref_obj_id R2 2 2(1) WARNING: CPU: 1 PID: 3897 at kernel/bpf/verifier.c:9678 check_func_arg kernel/bpf/verifier.c:9676 [inline] WARNING: CPU: 1 PID: 3897 at kernel/bpf/verifier.c:9678 check_helper_call+0x2035/0x2200 kernel/bpf/verifier.c:11386 Modules linked in: CPU: 1 UID: 0 PID: 3897 Comm: syz.2.16 Not tainted 6.16.0-rc3-syzkaller #0 PREEMPT(undef) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:check_func_arg kernel/bpf/verifier.c:9676 [inline] RIP: 0010:check_helper_call+0x2035/0x2200 kernel/bpf/verifier.c:11386 Code: 7a 45 02 01 90 4c 8b 7c 24 10 4c 8b 74 24 28 43 8b 54 3e 5c 8b 4c 24 70 48 c7 c7 dd 52 1f 83 48 8b 74 24 30 e8 8c 43 cc ff 90 <0f> 0b 90 90 43 8b 4c 3e 5c 44 8b 44 24 70 e9 cb ef ff ff 80 3d 78 RSP: 0018:ffffc900013978f8 EFLAGS: 00010246 RAX: 6af0f370451e2400 RBX: ffff88811e210000 RCX: 0000000000000000 RDX: 0000000000000002 RSI: ffffffff831aa8d8 RDI: 00000000ffffffff RBP: 0000000000000004 R08: 0000000000001fff R09: ffffffff836ad2f0 R10: 0000000000005ffd R11: 00000000ffffdfff R12: 0000000000000003 R13: ffffc900001950a8 R14: ffff88811a56b000 R15: 00000000000000f0 FS: 00007f1d32e1f6c0(0000) GS:ffff8882b3817000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30a5ffff CR3: 00000001155e0000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_check_insn kernel/bpf/verifier.c:19850 [inline] do_check+0x27d7/0x3030 kernel/bpf/verifier.c:20017 do_check_common+0x319/0x820 kernel/bpf/verifier.c:23180 do_check_main kernel/bpf/verifier.c:23263 [inline] bpf_check+0xf2a/0x52a0 kernel/bpf/verifier.c:24619 bpf_prog_load+0x65c/0x6f0 kernel/bpf/syscall.c:2972 __sys_bpf+0x3f4/0x590 kernel/bpf/syscall.c:5978 __do_sys_bpf kernel/bpf/syscall.c:6085 [inline] __se_sys_bpf kernel/bpf/syscall.c:6083 [inline] __x64_sys_bpf+0x17/0x20 kernel/bpf/syscall.c:6083 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xe2/0x2f0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1d333ae929 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:00007f1d32e1f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f1d335d5fa0 RCX: 00007f1d333ae929 RDX: 0000000000000090 RSI: 0000200000000840 RDI: 0000000000000005 RBP: 00007f1d33430b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f1d335d5fa0 R15: 00007ffd5f7d9638