ci starts bisection 2025-06-03 13:42:05.094524828 +0000 UTC m=+3539.508510811 bisecting cause commit starting from 7f9039c524a351c684149ecf1b3c5145a0dff2fe building syzkaller on b396b4bf0dd7f6212b1c739d942c404cffc0ae48 ensuring issue is reproducible on original commit 7f9039c524a351c684149ecf1b3c5145a0dff2fe testing commit 7f9039c524a351c684149ecf1b3c5145a0dff2fe gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: b29b36543cd5940cfdb40f84a64f97d591c651c4f9cb9a637fac27a753fb1cf0 all runs: crashed: stack segment fault in __usb_hcd_giveback_urb representative crash: stack segment fault in __usb_hcd_giveback_urb, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 7f9039c524a351c684149ecf1b3c5145a0dff2fe gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 69a715ed630af0e0411e92309f4b60904c44c05c040eec85ec5ab00a2fd15454 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb representative crash: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=4091 full=8359 leaves diff=2131 split chunks (needed=false): <2131> split chunk #0 of len 2131 into 5 parts testing without sub-chunk 1/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 7f9039c524a351c684149ecf1b3c5145a0dff2fe gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 03e56ddd886f6beebb006dd5b5ae7ecd57ed3aea0f21ced82bdcd731ca689804 run #0: ignore: lost connection to test machine run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 7f9039c524a351c684149ecf1b3c5145a0dff2fe gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: f4031e130907e31d15acc2b659cf7b849596fa96184ccd31a86e9498d22b080b all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb representative crash: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 7f9039c524a351c684149ecf1b3c5145a0dff2fe gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 54bb38b4ff1d17527e1de8d41c5a006cb8707549d54804a52c505f05f927c4ae all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb representative crash: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 7f9039c524a351c684149ecf1b3c5145a0dff2fe gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: b830188bf968d4cf6eddfa8510ced49759e4103d9e51fd68071a09b765b00ae5 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb representative crash: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 7f9039c524a351c684149ecf1b3c5145a0dff2fe gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 9c35abef80c8c1a91320b6db3ffeeeb7e97fe67ea2c97ed412e47c4440097a12 all runs: OK false negative chance: 0.000 minimized to 850 configs; suspects: [6LOWPAN 6LOWPAN_GHC_EXT_HDR_DEST 6LOWPAN_GHC_EXT_HDR_FRAG 6LOWPAN_GHC_EXT_HDR_HOP 6LOWPAN_GHC_EXT_HDR_ROUTE 6LOWPAN_GHC_ICMPV6 6LOWPAN_GHC_UDP 6LOWPAN_NHC 6LOWPAN_NHC_DEST 6LOWPAN_NHC_FRAGMENT 6LOWPAN_NHC_HOP 6LOWPAN_NHC_IPV6 6LOWPAN_NHC_MOBILITY 6LOWPAN_NHC_ROUTING 6LOWPAN_NHC_UDP 6PACK 842_COMPRESS 842_DECOMPRESS 9P_FSCACHE 9P_FS_POSIX_ACL 9P_FS_SECURITY ACORN_PARTITION ACORN_PARTITION_ADFS ACORN_PARTITION_CUMANA ACORN_PARTITION_EESOX ACORN_PARTITION_ICS ACORN_PARTITION_POWERTEC ACORN_PARTITION_RISCIX ACPI_MRRM ACPI_NFIT ACPI_NHLT ACPI_PLATFORM_PROFILE ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMD_SFH_HID AMIGA_PARTITION ANDROID_BINDERFS ANDROID_BINDER_IPC ANON_VMA_NAME APERTURE_HELPERS APPLE_MFI_FASTCHARGE AR5523 ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ARCH_HAS_USER_SHADOW_STACK ARCH_SUPPORTS_HUGE_PFNMAP ARCH_SUPPORTS_PMD_PFNMAP ARCH_SUPPORTS_PUD_PFNMAP ARCH_WANT_PMD_MKWRITE ASM_MODVERSIONS ASUS_TF103C_DOCK ASYNC_CORE ASYNC_MEMCPY ASYNC_PQ ASYNC_RAID6_RECOV ASYNC_TX_DMA ASYNC_XOR ATARI_PARTITION ATA_GENERIC ATA_OVER_ETH ATH10K ATH10K_CE ATH10K_LEDS ATH10K_PCI ATH10K_USB ATH11K ATH6KL ATH6KL_USB ATH9K ATH9K_AHB ATH9K_BTCOEX_SUPPORT ATH9K_CHANNEL_CONTEXT ATH9K_COMMON ATH9K_COMMON_DEBUG ATH9K_COMMON_SPECTRAL ATH9K_DEBUGFS ATH9K_DYNACK ATH9K_HTC ATH9K_HTC_DEBUGFS ATH9K_HW ATH9K_PCI ATH9K_PCOEM ATH9K_RFKILL ATH_COMMON ATM ATM_BR2684 ATM_CLIP ATM_DRIVERS ATM_LANE ATM_MPOA ATM_TCP AUXILIARY_BUS AX25 AX25_DAMA_SLAVE AX88796B_PHY BAREUDP BATMAN_ADV BATMAN_ADV_BATMAN_V BATMAN_ADV_BLA BATMAN_ADV_DAT BATMAN_ADV_MCAST BATMAN_ADV_NC BCACHE BCACHEFS_DEBUG BCACHEFS_ERASURE_CODING BCACHEFS_FS BCACHEFS_POSIX_ACL BCACHEFS_QUOTA BCACHEFS_SIX_OPTIMISTIC_SPIN BCMA BCMA_HOST_PCI_POSSIBLE BEFS_FS BFQ_CGROUP_DEBUG BFQ_GROUP_IOSCHED BFS_FS BIG_KEYS BLK_CGROUP_PUNT_BIO BLK_CGROUP_RWSTAT BLK_DEV_BSGLIB BLK_DEV_INTEGRITY BLK_DEV_NBD BLK_DEV_NULL_BLK BLK_DEV_NULL_BLK_FAULT_INJECTION BLK_DEV_NVME BLK_DEV_PMEM BLK_DEV_RAM BLK_DEV_RNBD BLK_DEV_RNBD_CLIENT BLK_DEV_THROTTLING BLK_DEV_ZONED BLK_ICQ BLK_INLINE_ENCRYPTION BLK_INLINE_ENCRYPTION_FALLBACK BLK_WBT BLK_WBT_MQ BONDING BOOT_VESA_SUPPORT BPF_EVENTS BPF_JIT BPF_JIT_ALWAYS_ON BPF_JIT_DEFAULT_ON BPF_LSM BPF_PRELOAD BPF_PRELOAD_UMD BPF_STREAM_PARSER BPF_SYSCALL BPQETHER BRIDGE BRIDGE_CFM BRIDGE_EBT_802_3 BRIDGE_EBT_AMONG BRIDGE_EBT_ARP BRIDGE_EBT_ARPREPLY BRIDGE_EBT_BROUTE BRIDGE_EBT_DNAT BRIDGE_EBT_IP BRIDGE_EBT_IP6 BRIDGE_EBT_LIMIT BRIDGE_EBT_LOG BRIDGE_EBT_MARK BRIDGE_EBT_MARK_T BRIDGE_EBT_NFLOG BRIDGE_EBT_PKTTYPE BRIDGE_EBT_REDIRECT BRIDGE_EBT_SNAT BRIDGE_EBT_STP BRIDGE_EBT_T_FILTER BRIDGE_EBT_T_NAT BRIDGE_EBT_VLAN BRIDGE_IGMP_SNOOPING BRIDGE_MRP BRIDGE_NF_EBTABLES BRIDGE_NF_EBTABLES_LEGACY BRIDGE_VLAN_FILTERING BSD_DISKLABEL BSD_PROCESS_ACCT_V3 BT BTRFS_ASSERT BTRFS_FS BTRFS_FS_POSIX_ACL BTRFS_FS_REF_VERIFY BTT BT_6LOWPAN BT_ATH3K BT_BCM BT_BNEP BT_BNEP_MC_FILTER BT_BNEP_PROTO_FILTER BT_BREDR BT_HCIBCM203X BT_HCIBFUSB BT_HCIBPA10X BT_HCIBTUSB BT_HCIBTUSB_AUTOSUSPEND BT_HCIBTUSB_BCM BT_HCIBTUSB_MTK BT_HCIBTUSB_POLL_SYNC BT_HCIBTUSB_RTL BT_HCIUART BT_HCIUART_3WIRE BT_HCIUART_AG6XX BT_HCIUART_BCSP BT_HCIUART_H4 BT_HCIUART_LL BT_HCIUART_MRVL BT_HCIUART_QCA BT_HCIUART_SERDEV BT_HCIVHCI BT_INTEL BT_LE BT_LEDS BT_LE_L2CAP_ECRED BT_MRVL BT_MRVL_SDIO BT_MSFTEXT BT_MTK BT_MTKSDIO BT_MTKUART BT_QCA BT_RFCOMM BT_RFCOMM_TTY BT_RTL CACHEFILES CAIF CAIF_DEBUG CAIF_DRIVERS CAIF_NETDEV CAIF_TTY CAIF_USB CAIF_VIRTIO CAN CAN_8DEV_USB CAN_BCM CAN_CALC_BITTIMING CAN_DEV CAN_EMS_USB CAN_ESD_USB CAN_ETAS_ES58X CAN_F81604 CAN_GS_USB CAN_GW CAN_IFI_CANFD CAN_ISOTP CAN_J1939 CAN_KVASER_USB CAN_MCBA_USB CAN_NETLINK CAN_PEAK_USB CAN_RAW CAN_RX_OFFLOAD CAN_SLCAN CAN_UCAN CAN_VCAN CAN_VXCAN CARDBUS CARL9170 CARL9170_HWRNG CARL9170_LEDS CARL9170_WPC CEC_CORE CEPH_FS CEPH_FSCACHE CEPH_FS_POSIX_ACL CEPH_LIB CEPH_LIB_USE_DNS_RESOLVER CFG80211 CFG80211_CRDA_SUPPORT CFG80211_DEBUGFS CFG80211_DEFAULT_PS CFG80211_REQUIRE_SIGNED_REGDB CFG80211_USE_KERNEL_REGDB_KEYS CFG80211_WEXT CFS_BANDWIDTH CGROUP_BPF CHARGER_ISP1704 CHR_DEV_ST CIFS CIFS_ALLOW_INSECURE_LEGACY CIFS_DEBUG CIFS_DFS_UPCALL CIFS_FSCACHE CIFS_POSIX CIFS_SMB_DIRECT CIFS_SWN_UPCALL CIFS_UPCALL CIFS_XATTR CLOSURES CLS_U32_MARK CLS_U32_PERF CMA CMA_SIZE_SEL_MAX CMDLINE_PARTITION COMEDI COMEDI_DT9812 COMEDI_NI_USB6501 COMEDI_USBDUX COMEDI_USBDUXFAST COMEDI_USBDUXSIGMA COMEDI_USB_DRIVERS COMEDI_VMK80XX COMMON_CLK COMPAT_NETLINK_MESSAGES CONTIG_ALLOC COUNTER CRAMFS CRAMFS_BLOCKDEV CRAMFS_MTD CRC64 CRC64_ARCH CRC8 CRC_CCITT CRC_ITU_T CRC_T10DIF CRC_T10DIF_ARCH CRYPTO_842 CRYPTO_ADIANTUM CRYPTO_AEGIS128 CRYPTO_AEGIS128_AESNI_SSE2 CRYPTO_AES_NI_INTEL CRYPTO_AES_TI CRYPTO_ANSI_CPRNG CRYPTO_ANUBIS CRYPTO_ARC4 CRYPTO_ARCH_HAVE_LIB_BLAKE2S CRYPTO_ARCH_HAVE_LIB_CHACHA CRYPTO_ARCH_HAVE_LIB_CURVE25519 CRYPTO_ARCH_HAVE_LIB_POLY1305 CRYPTO_ARCH_HAVE_LIB_SHA256 CRYPTO_ARCH_HAVE_LIB_SHA256_SIMD CRYPTO_ARIA CRYPTO_ARIA_AESNI_AVX_X86_64 CRYPTO_BLAKE2B CRYPTO_BLAKE2S_X86 CRYPTO_BLOWFISH CRYPTO_BLOWFISH_COMMON CRYPTO_BLOWFISH_X86_64 CRYPTO_CAMELLIA CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 CRYPTO_CAMELLIA_AESNI_AVX_X86_64 CRYPTO_CAMELLIA_X86_64 CRYPTO_CAST5 CRYPTO_CAST5_AVX_X86_64 CRYPTO_CAST6 CRYPTO_CAST6_AVX_X86_64 CRYPTO_CAST_COMMON CRYPTO_CHACHA20 CRYPTO_CHACHA20POLY1305 CRYPTO_CHACHA20_X86_64 CRYPTO_CRC32C CRYPTO_CRYPTD CRYPTO_CTS CRYPTO_CURVE25519 CRYPTO_CURVE25519_X86 CRYPTO_DEFLATE CRYPTO_DES CRYPTO_DES3_EDE_X86_64 CRYPTO_DEV_CCP CRYPTO_DEV_CCP_DD CRYPTO_DEV_PADLOCK CRYPTO_DEV_PADLOCK_AES CRYPTO_DEV_PADLOCK_SHA CRYPTO_DEV_QAT CRYPTO_DEV_QAT_C3XXX CRYPTO_DEV_QAT_C3XXXVF CRYPTO_DEV_QAT_C62X CRYPTO_DEV_QAT_C62XVF CRYPTO_DEV_QAT_DH895xCC CRYPTO_DEV_QAT_DH895xCCVF CRYPTO_DEV_VIRTIO CRYPTO_DH CRYPTO_DRBG_CTR CRYPTO_DRBG_HASH CRYPTO_ECDH CRYPTO_ECRDSA CRYPTO_ENGINE CRYPTO_ESSIV CRYPTO_FCRYPT CRYPTO_GHASH_CLMUL_NI_INTEL CRYPTO_HCTR2 CRYPTO_HKDF CRYPTO_KDF800108_CTR CRYPTO_KHAZAD CRYPTO_KPP CRYPTO_KRB5 CRYPTO_KRB5ENC CRYPTO_LIB_ARC4 CRYPTO_LIB_CHACHA CRYPTO_LIB_CHACHA20POLY1305 CRYPTO_LIB_CHACHA_GENERIC CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_CURVE25519_INTERNAL CRYPTO_LIB_DES CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LIB_SHA256_GENERIC CRYPTO_LIB_SM3 CRYPTO_LRW CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_MICHAEL_MIC CRYPTO_NHPOLY1305 CRYPTO_NHPOLY1305_AVX2 CRYPTO_NHPOLY1305_SSE2 CRYPTO_PCBC CRYPTO_PCRYPT CRYPTO_POLY1305_X86_64 CRYPTO_POLYVAL CRYPTO_POLYVAL_CLMUL_NI CRYPTO_RMD160 CRYPTO_SEED CRYPTO_SERPENT CRYPTO_SERPENT_AVX2_X86_64 CRYPTO_SERPENT_AVX_X86_64 CRYPTO_SERPENT_SSE2_X86_64 CRYPTO_SHA1_SSSE3 CRYPTO_SHA256_X86_64 CRYPTO_SHA512_SSSE3 CRYPTO_SM3_AVX_X86_64 CRYPTO_SM4 CRYPTO_SM4_AESNI_AVX2_X86_64 CRYPTO_SM4_AESNI_AVX_X86_64 CRYPTO_SM4_GENERIC CRYPTO_STREEBOG CRYPTO_TEA CRYPTO_TWOFISH CRYPTO_TWOFISH_AVX_X86_64 CRYPTO_TWOFISH_COMMON CRYPTO_TWOFISH_X86_64 CRYPTO_TWOFISH_X86_64_3WAY CRYPTO_USER CRYPTO_USER_API CRYPTO_USER_API_AEAD CRYPTO_USER_API_ENABLE_OBSOLETE CRYPTO_USER_API_HASH CRYPTO_USER_API_RNG CRYPTO_USER_API_SKCIPHER CRYPTO_WP512 CRYPTO_XCBC CRYPTO_XCTR CRYPTO_XTS CRYPTO_XXHASH CRYPTO_ZSTD CUSE CYPRESS_FIRMWARE DAMON DAMON_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEBUG_VFS DEFAULT_CODEL DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DLN2_ADC DMABUF_HEAPS DMABUF_HEAPS_CMA DMABUF_HEAPS_SYSTEM DMABUF_MOVE_NOTIFY DMA_CMA DMA_ENGINE_RAID DM_AUDIT DM_BIO_PRISON DM_BUFIO DM_CACHE DM_CACHE_SMQ DM_CLONE DM_CRYPT DM_FLAKEY DM_INTEGRITY DM_MULTIPATH DM_MULTIPATH_QL DM_MULTIPATH_ST DM_PERSISTENT_DATA DM_RAID DM_SNAPSHOT DM_THIN_PROVISIONING DM_UEVENT DM_VERITY DM_VERITY_FEC DM_WRITECACHE DM_ZONED DRAGONRISE_FF DRM DRM_AUX_BRIDGE DRM_BOCHS DRM_BRIDGE DRM_BUDDY DRM_CIRRUS_QEMU DRM_CLIENT DRM_CLIENT_DEFAULT_FBDEV DRM_CLIENT_LIB DRM_CLIENT_SELECTION DRM_CLIENT_SETUP DRM_DEBUG_MM DRM_DISPLAY_DP_AUX_BUS DRM_DISPLAY_DP_HELPER DRM_DISPLAY_HELPER DRM_FBDEV_EMULATION DVB_CORE ENCRYPTED_KEYS EXTCON FSCACHE FUSE_FS GPIOLIB HAMRADIO HID_DRAGONRISE HID_ZEROPLUS I2C_MUX IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOMMUFD IOSCHED_BFQ IRQ_REMAP KVM KVM_INTEL LIBNVDIMM MAC80211 MAC80211_DEBUGFS MAC80211_LEDS 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 MMC MTD NET_CLS_U32 NET_SCH_DEFAULT NOP_USB_XCEIV PARPORT PARTITION_ADVANCED PCCARD PCMCIA PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RC_CORE RFKILL SERIAL_DEV_BUS SND SOUND SPI SSB TAP TARGET_CORE TLS TLS_DEVICE TRANSPARENT_HUGEPAGE TRUSTED_KEYS TUN USB_AMD5536UDC USB_ATM USB_CATC 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_PHY 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_COMPAT_NETLINK_MESSAGES WANT_DEV_COREDUMP WEXT_CORE WEXT_PROC WIREGUARD WIRELESS WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_ATH 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 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_ZSMALLOC] disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], 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 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: dd386c018e1e304b0264cc5163ea2ee0d1193de89a591a6f502e5218508e4c88 run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb run #2: boot failed: can't ssh into the instance run #3: boot failed: can't ssh into the instance run #4: boot failed: can't ssh into the instance run #5: boot failed: can't ssh into the instance run #6: boot failed: can't ssh into the instance run #7: boot failed: can't ssh into the instance run #8: boot failed: can't ssh into the instance run #9: boot failed: can't ssh into the instance representative crash: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb, types: [UNKNOWN] unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 2 testing release v6.14 testing commit 38fec10eb60d687e30c8c6b5420d86e8149f7557 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 63c1058136d279382f571693fbb1a5116ac90044d17d1a48fcf55e0200288647 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb representative crash: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb, types: [UNKNOWN] testing release v6.13 testing commit ffd294d346d185b70e28b1a28abe367bbfe53c04 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: cb1f48720023300e7ffbbe3b03f6cbcc3e72e6d85503f0a7380d2c4aa565c113 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb representative crash: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb, types: [UNKNOWN] testing release v6.11 testing commit 98f7e32f20d28ec452afb208f9cffc08448a2652 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 1765eac8b6e39c2ed62c17e5e78a35cda173667ba5365115ea2d8caa468d2d0e run #0: basic kernel testing failed: lost connection to test machine run #1: basic kernel testing failed: lost connection to test machine run #2: basic kernel testing failed: lost connection to test machine run #3: basic kernel testing failed: lost connection to test machine run #4: basic kernel testing failed: lost connection to test machine run #5: basic kernel testing failed: lost connection to test machine run #6: basic kernel testing failed: lost connection to test machine run #7: basic kernel testing failed: lost connection to test machine run #8: basic kernel testing failed: failed to copy prog to VM: timedout after 1m0s ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syzkaller486197942" "root@10.128.10.36:./syzkaller486197942"] Executing: program /usr/bin/ssh host 10.128.10.36, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u5, OpenSSL 3.0.15 3 Sep 2024 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.36 [10.128.10.36] port 22. debug1: fd 3 clearing O_NONBLOCK debug1: Connection established. debug1: identity file /root/.ssh/id_rsa type -1 debug1: identity file /root/.ssh/id_rsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa type -1 debug1: identity file /root/.ssh/id_ecdsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa_sk type -1 debug1: identity file /root/.ssh/id_ecdsa_sk-cert type -1 debug1: identity file /root/.ssh/id_ed25519 type -1 debug1: identity file /root/.ssh/id_ed25519-cert type -1 debug1: identity file /root/.ssh/id_ed25519_sk type -1 debug1: identity file /root/.ssh/id_ed25519_sk-cert type -1 debug1: identity file /root/.ssh/id_xmss type -1 debug1: identity file /root/.ssh/id_xmss-cert type -1 debug1: identity file /root/.ssh/id_dsa type -1 debug1: identity file /root/.ssh/id_dsa-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_9.2p1 Debian-2+deb12u5 debug1: Remote protocol version 2.0, remote software version OpenSSH_9.9 debug1: compat_banner: match: OpenSSH_9.9 pat OpenSSH* compat 0x04000000 debug1: Authenticating to 10.128.10.36:22 as 'root' debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: algorithm: sntrup761x25519-sha512 debug1: kex: host key algorithm: ssh-ed25519 debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: compression: none debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: compression: none debug1: expecting SSH2_MSG_KEX_ECDH_REPLY run #9: basic kernel testing failed: failed to copy prog to VM: timedout after 1m0s ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syzkaller4094128740" "root@10.128.10.30:./syzkaller4094128740"] Executing: program /usr/bin/ssh host 10.128.10.30, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u5, OpenSSL 3.0.15 3 Sep 2024 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.30 [10.128.10.30] port 22. debug1: fd 3 clearing O_NONBLOCK debug1: Connection established. debug1: identity file /root/.ssh/id_rsa type -1 debug1: identity file /root/.ssh/id_rsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa type -1 debug1: identity file /root/.ssh/id_ecdsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa_sk type -1 debug1: identity file /root/.ssh/id_ecdsa_sk-cert type -1 debug1: identity file /root/.ssh/id_ed25519 type -1 debug1: identity file /root/.ssh/id_ed25519-cert type -1 debug1: identity file /root/.ssh/id_ed25519_sk type -1 debug1: identity file /root/.ssh/id_ed25519_sk-cert type -1 debug1: identity file /root/.ssh/id_xmss type -1 debug1: identity file /root/.ssh/id_xmss-cert type -1 debug1: identity file /root/.ssh/id_dsa type -1 debug1: identity file /root/.ssh/id_dsa-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_9.2p1 Debian-2+deb12u5 debug1: Remote protocol version 2.0, remote software version OpenSSH_9.9 debug1: compat_banner: match: OpenSSH_9.9 pat OpenSSH* compat 0x04000000 debug1: Authenticating to 10.128.10.30:22 as 'root' debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: algorithm: sntrup761x25519-sha512 debug1: kex: host key algorithm: ssh-ed25519 debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: compression: none debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: compression: none debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: SSH2_MSG_KEX_ECDH_REPLY received debug1: Server host key: ssh-ed25519 SHA256:EAvWV3GG8odMD+k20F251zjwXNDbyLo/P7N2oY0DvFQ debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory Warning: Permanently added '10.128.10.30' (ED25519) to the list of known hosts. debug1: ssh_packet_send2_wrapped: resetting send seqnr 3 debug1: rekey out after 134217728 blocks debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: ssh_packet_read_poll2: resetting read seqnr 3 debug1: SSH2_MSG_NEWKEYS received debug1: rekey in after 134217728 blocks debug1: Will attempt key: /root/.ssh/id_rsa debug1: Will attempt key: /root/.ssh/id_ecdsa debug1: Will attempt key: /root/.ssh/id_ecdsa_sk debug1: Will attempt key: /root/.ssh/id_ed25519 debug1: Will attempt key: /root/.ssh/id_ed25519_sk debug1: Will attempt key: /root/.ssh/id_xmss debug1: Will attempt key: /root/.ssh/id_dsa debug1: SSH2_MSG_EXT_INFO received debug1: kex_input_ext_info: server-sig-algs= debug1: kex_input_ext_info: publickey-hostbound@openssh.com=<0> debug1: kex_input_ext_info: ping@openssh.com (unrecognised) unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 0 testing release v6.9 testing commit a38297e3fb012ddfa7ce0321a7e5a8daeb1872b6 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: b88a3909cd56f968db0d6030742b0884c78d3ca119944b61c9edf4ce4674a900 all runs: OK false negative chance: 0.000 # git bisect start ffd294d346d185b70e28b1a28abe367bbfe53c04 a38297e3fb012ddfa7ce0321a7e5a8daeb1872b6 Bisecting: 29255 revisions left to test after this (roughly 15 steps) [ec4d817c608bcac5504e08eae72e3090a75111aa] Merge branch 'net-fix-module-autoloading' testing commit ec4d817c608bcac5504e08eae72e3090a75111aa gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 260b3309daf4fad66aa4be6849161894937352ea2c5fb84de98ebedb77816701 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb representative crash: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb, types: [UNKNOWN] # git bisect bad ec4d817c608bcac5504e08eae72e3090a75111aa Bisecting: 14612 revisions left to test after this (roughly 14 steps) [28323a7561667b7a7e6da9ffaef9f5eef32c1eb2] Merge tag 'qcom-arm64-for-6.11-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/dt testing commit 28323a7561667b7a7e6da9ffaef9f5eef32c1eb2 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: ec47cda3c8dcf95f7ced0fc0ac0b4b13e1ca6cd640bdf955a641fa76357c85a7 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb representative crash: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb, types: [UNKNOWN] # git bisect bad 28323a7561667b7a7e6da9ffaef9f5eef32c1eb2 Bisecting: 7218 revisions left to test after this (roughly 13 steps) [33e02dc69afbd8f1b85a51d74d72f139ba4ca623] Merge tag 'sound-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound testing commit 33e02dc69afbd8f1b85a51d74d72f139ba4ca623 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: e6aa4ea76cde34da6b1119776e3e6243675275e10d0f76f23e5a4bf9ecfef26d all runs: OK false negative chance: 0.000 # git bisect good 33e02dc69afbd8f1b85a51d74d72f139ba4ca623 Bisecting: 3586 revisions left to test after this (roughly 12 steps) [29c73fc794c83505066ee6db893b2a83ac5fac63] Merge tag 'perf-tools-for-v6.10-1-2024-05-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools testing commit 29c73fc794c83505066ee6db893b2a83ac5fac63 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: c622a93906c28e6069c9e3543c802f97cc4621754e155a759343227dab768fc6 all runs: OK false negative chance: 0.000 # git bisect good 29c73fc794c83505066ee6db893b2a83ac5fac63 Bisecting: 1792 revisions left to test after this (roughly 11 steps) [558dc49aacc7f3a348c1f10af7d1169bed2fe426] Merge tag 'i2c-for-6.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux testing commit 558dc49aacc7f3a348c1f10af7d1169bed2fe426 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: c9988711b2a5cccf062d588d3eebd055f291e7c3fb9733b8e83e58621015ce77 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb representative crash: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb, types: [UNKNOWN] # git bisect bad 558dc49aacc7f3a348c1f10af7d1169bed2fe426 Bisecting: 876 revisions left to test after this (roughly 10 steps) [5f16eb0549ab502906fb2a10147dad4b9dc185c4] Merge tag 'char-misc-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc testing commit 5f16eb0549ab502906fb2a10147dad4b9dc185c4 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 5529528237ffbac511654f38970a7c2b8dd6a49ebd4086d89da3f5d676c89ffc all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb representative crash: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb, types: [UNKNOWN] # git bisect bad 5f16eb0549ab502906fb2a10147dad4b9dc185c4 Bisecting: 446 revisions left to test after this (roughly 9 steps) [f6b8e86b7a65495d3947a1d1fc22183c52f786f6] Merge tag 'tty-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty testing commit f6b8e86b7a65495d3947a1d1fc22183c52f786f6 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 5ee7318a9e2a5b7e450461ea0acadd6dc759cf6a52401f71c9a0034bfa2cdbe9 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb representative crash: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb, types: [UNKNOWN] # git bisect bad f6b8e86b7a65495d3947a1d1fc22183c52f786f6 Bisecting: 273 revisions left to test after this (roughly 8 steps) [f3033eb79136dd27b17e7a192fac0155ceab5eb8] Merge tag 'leds-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds testing commit f3033eb79136dd27b17e7a192fac0155ceab5eb8 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 13603a9845771bb96703e0a28b8e445ae73f14de1090314366f2ef17011d9b08 all runs: OK false negative chance: 0.000 # git bisect good f3033eb79136dd27b17e7a192fac0155ceab5eb8 Bisecting: 140 revisions left to test after this (roughly 7 steps) [adeab5bfb81840dc4be7ae20324bbf03b2b53eb2] Merge 6.9-rc7 into usb-next testing commit adeab5bfb81840dc4be7ae20324bbf03b2b53eb2 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 393d5bb866eca45fc66878115558558dc95a59156dd558bd7eb9a8ddc1f71895 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb representative crash: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb, types: [UNKNOWN] # git bisect bad adeab5bfb81840dc4be7ae20324bbf03b2b53eb2 Bisecting: 66 revisions left to test after this (roughly 6 steps) [d24f05964f2dc5677c8b1f09a6ad42137467d1f0] usb: misc: uss720: add support for another variant of the Belkin F5U002 testing commit d24f05964f2dc5677c8b1f09a6ad42137467d1f0 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: e242a3453625dc43cf33587059009cf17dceb3ac0d4761a38115e1c071d44abb all runs: OK false negative chance: 0.000 # git bisect good d24f05964f2dc5677c8b1f09a6ad42137467d1f0 Bisecting: 33 revisions left to test after this (roughly 5 steps) [30a46746ca5a1ef4dad3ea72be4fd01872f89ac2] usb: dwc3: core: Refactor PHY logic to support Multiport Controller testing commit 30a46746ca5a1ef4dad3ea72be4fd01872f89ac2 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: df70b0e31f1de8bcc04398ed8b606844695576cb7e8717190ad0be94f2cde95b all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb representative crash: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb, types: [UNKNOWN] # git bisect bad 30a46746ca5a1ef4dad3ea72be4fd01872f89ac2 Bisecting: 16 revisions left to test after this (roughly 4 steps) [76716fd5bf09725c2c6825264147f16c21e56853] usb: typec: ucsi: glink: move GPIO reading into connector_status callback testing commit 76716fd5bf09725c2c6825264147f16c21e56853 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: bca901c22dd6c8101b255d82514ed96d62e91cf3d4869950b3cf8bc013849b98 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb representative crash: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb, types: [UNKNOWN] # git bisect bad 76716fd5bf09725c2c6825264147f16c21e56853 Bisecting: 7 revisions left to test after this (roughly 3 steps) [0c5794f7b0ef74f54314183f560a0a938be21b45] usb: typec: ucsi_glink: enable the UCSI_DELAY_DEVICE_PDOS quirk on qcm6490 testing commit 0c5794f7b0ef74f54314183f560a0a938be21b45 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 81b477d009ee4f8123c295153674792a8c175d44391bfc25ee7048eddddd0388 all runs: OK false negative chance: 0.000 # git bisect good 0c5794f7b0ef74f54314183f560a0a938be21b45 Bisecting: 3 revisions left to test after this (roughly 2 steps) [920e7522e3bab5ebc2fb0cc1a034f4470c87fa97] usb: gadget: function: Remove usage of the deprecated ida_simple_xx() API testing commit 920e7522e3bab5ebc2fb0cc1a034f4470c87fa97 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 15429bbb72a6563a852378b27f82b98082dbe50a15a383dff080c8112cc3ce89 all runs: OK false negative chance: 0.000 # git bisect good 920e7522e3bab5ebc2fb0cc1a034f4470c87fa97 Bisecting: 1 revision left to test after this (roughly 1 step) [0a723ed3baa941ca4f51d87bab00661f41142835] usb: gadget: dummy_hcd: Set transfer interval to 1 microframe testing commit 0a723ed3baa941ca4f51d87bab00661f41142835 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: df9aae6d3198adee25b60a607ea6a9985184f2e014f892e6447537a2f704650c all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb representative crash: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb, types: [UNKNOWN] # git bisect bad 0a723ed3baa941ca4f51d87bab00661f41142835 Bisecting: 0 revisions left to test after this (roughly 0 steps) [a7f3813e589fd8e2834720829a47b5eb914a9afe] usb: gadget: dummy_hcd: Switch to hrtimer transfer scheduler testing commit a7f3813e589fd8e2834720829a47b5eb914a9afe gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: ee40f98bb0742c73f2b755f335b239a7d32438d9a542ce58f33173977d714032 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb representative crash: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb, types: [UNKNOWN] # git bisect bad a7f3813e589fd8e2834720829a47b5eb914a9afe a7f3813e589fd8e2834720829a47b5eb914a9afe is the first bad commit commit a7f3813e589fd8e2834720829a47b5eb914a9afe Author: Marcello Sylvester Bauer Date: Thu Apr 11 16:51:28 2024 +0200 usb: gadget: dummy_hcd: Switch to hrtimer transfer scheduler The dummy_hcd transfer scheduler assumes that the internal kernel timer frequency is set to 1000Hz to give a polling interval of 1ms. Reducing the timer frequency will result in an anti-proportional reduction in transfer performance. Switch to a hrtimer to decouple this association. Signed-off-by: Marcello Sylvester Bauer Signed-off-by: Marcello Sylvester Bauer Reviewed-by: Alan Stern Link: https://lore.kernel.org/r/57a1c2180ff74661600e010c234d1dbaba1d0d46.1712843963.git.sylv@sylv.io Signed-off-by: Greg Kroah-Hartman drivers/usb/gadget/udc/dummy_hcd.c | 35 ++++++++++++++++++++--------------- 1 file changed, 20 insertions(+), 15 deletions(-) accumulated error probability: 0.00 culprit signature: ee40f98bb0742c73f2b755f335b239a7d32438d9a542ce58f33173977d714032 parent signature: 15429bbb72a6563a852378b27f82b98082dbe50a15a383dff080c8112cc3ce89 revisions tested: 28, total time: 11h22m50.318519565s (build: 5h50m50.027149366s, test: 4h50m33.047774181s) first bad commit: a7f3813e589fd8e2834720829a47b5eb914a9afe usb: gadget: dummy_hcd: Switch to hrtimer transfer scheduler recipients (to): ["gregkh@linuxfoundation.org" "marcello.bauer@9elements.com" "stern@rowland.harvard.edu" "sylv@sylv.io"] recipients (cc): [] crash: BUG: unable to handle kernel NULL pointer dereference in __usb_hcd_giveback_urb BUG: kernel NULL pointer dereference, address: 00000000000001c1 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 1 PID: 3119 Comm: udevd Not tainted 6.9.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:__queue_work+0x16/0x510 kernel/workqueue.c:2321 Code: 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 28 49 89 d6 49 89 f5 89 fd <0f> b7 86 c1 01 00 00 a9 80 01 00 00 74 41 65 8b 05 fd 79 df 7e a9 RSP: 0018:ffffc900000e0d80 EFLAGS: 00010082 RAX: 00000000ffffffed RBX: ffff88817b24ed00 RCX: 0000000000000001 RDX: ffff88817b3c3bb0 RSI: 0000000000000000 RDI: 0000000000000008 RBP: 0000000000000008 R08: 0000000000000000 R09: 00000000000006ab R10: 0000000000000000 R11: ffffffff82287ea0 R12: ffff888102ba8418 R13: 0000000000000000 R14: ffff88817b3c3bb0 R15: ffff888102ba8000 FS: 00007f2274879880(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000001c1 CR3: 000000010dfd0000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: queue_work_on+0x29/0x70 kernel/workqueue.c:2435 __usb_hcd_giveback_urb+0xb2/0x110 drivers/usb/core/hcd.c:1648 dummy_timer+0x276/0xf60 drivers/usb/gadget/udc/dummy_hcd.c:1985 __run_hrtimer kernel/time/hrtimer.c:1692 [inline] __hrtimer_run_queues+0x164/0x2c0 kernel/time/hrtimer.c:1756 hrtimer_interrupt+0xf9/0x3a0 kernel/time/hrtimer.c:1818 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x81/0x1c0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x92/0xb0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__fget_light fs/file.c:1147 [inline] RIP: 0010:__fdget fs/file.c:1159 [inline] RIP: 0010:__fdget_pos+0x3e/0xb0 fs/file.c:1186 Code: 98 08 00 00 8b 07 83 f8 01 75 63 48 8b 4f 58 89 f0 8b 11 48 89 14 24 48 3b 04 24 48 19 c0 48 8b 49 08 21 c6 48 23 04 f1 74 59 40 51 40 75 60 48 89 c7 48 83 e7 fc 74 4c f6 47 51 80 74 46 48 RSP: 0018:ffffc9000178feb0 EFLAGS: 00000286 RAX: ffff888100e85800 RBX: ffffc9000178ff00 RCX: ffff888102b17860 RDX: 0000000000000040 RSI: 000000000000000a RDI: ffff888102b17740 RBP: ffffc9000178ff48 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff81560100 R12: 00007ffd463ba047 R13: 0000000000000000 R14: ffffc9000178ff58 R15: 0000000000000000 fdget_pos include/linux/file.h:76 [inline] ksys_write+0x19/0xc0 fs/read_write.c:634 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x97/0x180 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x72/0x7a RIP: 0033:0x7f22740a7407 Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007ffd463b9fa0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f2274879880 RCX: 00007f22740a7407 RDX: 0000000000000000 RSI: 00007ffd463ba047 RDI: 000000000000000a RBP: 000000000000000a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00007f22748796e8 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: CR2: 00000000000001c1 ---[ end trace 0000000000000000 ]--- RIP: 0010:__queue_work+0x16/0x510 kernel/workqueue.c:2321 Code: 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 28 49 89 d6 49 89 f5 89 fd <0f> b7 86 c1 01 00 00 a9 80 01 00 00 74 41 65 8b 05 fd 79 df 7e a9 RSP: 0018:ffffc900000e0d80 EFLAGS: 00010082 RAX: 00000000ffffffed RBX: ffff88817b24ed00 RCX: 0000000000000001 RDX: ffff88817b3c3bb0 RSI: 0000000000000000 RDI: 0000000000000008 RBP: 0000000000000008 R08: 0000000000000000 R09: 00000000000006ab R10: 0000000000000000 R11: ffffffff82287ea0 R12: ffff888102ba8418 R13: 0000000000000000 R14: ffff88817b3c3bb0 R15: ffff888102ba8000 FS: 00007f2274879880(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000001c1 CR3: 000000010dfd0000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 44 00 00 add %r8b,(%rax) 3: 90 nop 4: 90 nop 5: 90 nop 6: 90 nop 7: 90 nop 8: 90 nop 9: 90 nop a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 55 push %rbp 14: 41 57 push %r15 16: 41 56 push %r14 18: 41 55 push %r13 1a: 41 54 push %r12 1c: 53 push %rbx 1d: 48 83 ec 28 sub $0x28,%rsp 21: 49 89 d6 mov %rdx,%r14 24: 49 89 f5 mov %rsi,%r13 27: 89 fd mov %edi,%ebp * 29: 0f b7 86 c1 01 00 00 movzwl 0x1c1(%rsi),%eax <-- trapping instruction 30: a9 80 01 00 00 test $0x180,%eax 35: 74 41 je 0x78 37: 65 8b 05 fd 79 df 7e mov %gs:0x7edf79fd(%rip),%eax # 0x7edf7a3b 3e: a9 .byte 0xa9