ci2 starts bisection 2025-09-16 13:25:09.939413833 +0000 UTC m=+411021.814228960 bisecting fixing commit since 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014 building syzkaller on 32a0e5edfeef60e894c453dc9e9ae45528626ef1 ensuring issue is reproducible on original commit 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014 testing commit 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 943394c78787d82cbe90327264d7f9956790fa245ca8d5e445dbdc37718c0d35 all runs: crashed: general protection fault in pick_link representative crash: general protection fault in pick_link, types: [DoS] check whether we can drop unnecessary instrumentation disabling configs for [kasan locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed testing commit 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: d5e52d4d2093f18ad6d6bdfc171646974dd448c5b0d1d59fb1feb50ec86ceb94 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in pick_link representative crash: BUG: unable to handle kernel NULL pointer dereference in pick_link, types: [NULL-POINTER-DEREFERENCE] the bug reproduces without the instrumentation disabling configs for [kasan locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed kconfig minimization: base=3913 full=7800 leaves diff=2160 split chunks (needed=false): <2160> split chunk #0 of len 2160 into 5 parts testing without sub-chunk 1/5 disabling configs for [kasan locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed testing commit 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: cffee42e0da440656f5ad1cc270bdf582db2eaaee576c034a356469bf9c9d55c all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in pick_link representative crash: BUG: unable to handle kernel NULL pointer dereference in pick_link, types: [NULL-POINTER-DEREFERENCE] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed testing commit 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: c1c6330a5bdc0608034be225f82f83fa23ebfe7ed11b3d4f4edd4bf80de8771a all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in pick_link representative crash: BUG: unable to handle kernel NULL pointer dereference in pick_link, types: [NULL-POINTER-DEREFERENCE] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep hang], they are not needed testing commit 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 7fd224346c9be7c6ea7a6b2bdad578c2722239b4bf1020283e3787d75ab2c9f8 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in pick_link representative crash: BUG: unable to handle kernel NULL pointer dereference in pick_link, types: [NULL-POINTER-DEREFERENCE] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep hang], they are not needed testing commit 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 8477a1d1c8008b447a60ff3a23a22c8977fcceafe9d8d574e42808946b0e3ddd all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning kasan locking], they are not needed testing commit 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 failed building 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014: ld.lld: error: undefined symbol: devm_drm_of_get_bridge minimized to 864 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ATM AX25 BCMA BLK_DEV_ZONED BPF_SYSCALL BT BT_BREDR BT_HIDP BXT_WC_PMIC_OPREGION CARDBUS CFG80211 CFG80211_WEXT CMA COMMON_CLK CONTIG_ALLOC CRYPTO_842 CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_LZO CRYPTO_ZSTD DAX DLM DRM DVB_CORE ENCRYPTED_KEYS EXTCON FB GENEVE GPIOLIB HAMRADIO HAVE_CLK HID_NINTENDO HID_NVIDIA_SHIELD HID_PLAYSTATION HID_SENSOR_HUB HID_SMARTJOYPLUS HID_STEAM HID_THRUSTMASTER HID_ZEROPLUS I2C_MUX IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN INTEL_SCU_IPC INTEL_SOC_PMIC_BXTWC IOMMUFD IP_SCTP IRQ_REMAP KVM KVM_INTEL L2TP LEDS_CLASS_MULTICOLOR LIBNVDIMM MAC80211 MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_COMMON_OPTIONS MEDIA_CONTROLLER MEDIA_DIGITAL_TV_SUPPORT MEDIA_PLATFORM_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_INTEL_PMC_BXT MFD_MT6360 MFD_MT6370 MFD_RETU MFD_VIPERBOARD MMC MTD MTD_UBI NETFILTER_ADVANCED NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 NF_CONNTRACK_SNMP NF_DUP_NETDEV NF_FLOW_TABLE NF_FLOW_TABLE_INET NF_NAT_AMANDA NF_NAT_H323 NF_NAT_OVS NF_NAT_PPTP NF_NAT_REDIRECT NF_NAT_SNMP_BASIC NF_NAT_TFTP NF_SOCKET_IPV4 NF_SOCKET_IPV6 NF_TABLES NF_TABLES_ARP NF_TABLES_NETDEV NF_TPROXY_IPV4 NF_TPROXY_IPV6 NILFS2_FS NINTENDO_FF NLMON NLS_CODEPAGE_1250 NLS_CODEPAGE_1251 NLS_CODEPAGE_737 NLS_CODEPAGE_775 NLS_CODEPAGE_850 NLS_CODEPAGE_852 NLS_CODEPAGE_855 NLS_CODEPAGE_857 NLS_CODEPAGE_860 NLS_CODEPAGE_861 NLS_CODEPAGE_862 NLS_CODEPAGE_863 NLS_CODEPAGE_864 NLS_CODEPAGE_865 NLS_CODEPAGE_866 NLS_CODEPAGE_869 NLS_CODEPAGE_874 NLS_CODEPAGE_932 NLS_CODEPAGE_936 NLS_CODEPAGE_949 NLS_CODEPAGE_950 NLS_ISO8859_13 NLS_ISO8859_14 NLS_ISO8859_15 NLS_ISO8859_2 NLS_ISO8859_3 NLS_ISO8859_4 NLS_ISO8859_5 NLS_ISO8859_6 NLS_ISO8859_7 NLS_ISO8859_8 NLS_ISO8859_9 NLS_KOI8_R NLS_KOI8_U NLS_MAC_CELTIC NLS_MAC_CENTEURO NLS_MAC_CROATIAN NLS_MAC_CYRILLIC NLS_MAC_GAELIC NLS_MAC_GREEK NLS_MAC_ICELAND NLS_MAC_INUIT NLS_MAC_ROMAN NLS_MAC_ROMANIAN NLS_MAC_TURKISH NLS_UCS2_UTILS NOP_USB_XCEIV NOZOMI NTFS3_FS NTFS3_FS_POSIX_ACL NTFS3_LZX_XPRESS NTFS_FS NTFS_RW NULL_TTY NUMA_BALANCING NUMA_BALANCING_DEFAULT_ENABLED NUMA_EMU NUMA_KEEP_MEMINFO NVDIMM_DAX NVDIMM_KEYS NVDIMM_PFN NVIDIA_SHIELD_FF NVME_CORE NVME_FABRICS NVME_FC NVME_MULTIPATH NVME_RDMA NVME_TARGET NVME_TARGET_FC NVME_TARGET_FCLOOP NVME_TARGET_LOOP NVME_TARGET_RDMA NVME_TARGET_TCP NVME_TCP N_GSM N_HDLC OCFS2_DEBUG_FS OCFS2_FS OCFS2_FS_O2CB OCFS2_FS_STATS OCFS2_FS_USERSPACE_CLUSTER OF_GPIO OF_PMEM OMFS_FS OPENVSWITCH OPENVSWITCH_GENEVE OPENVSWITCH_GRE OPENVSWITCH_VXLAN ORANGEFS_FS OSF_PARTITION OVERLAY_FS OVERLAY_FS_DEBUG OVERLAY_FS_INDEX OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW OVERLAY_FS_REDIRECT_DIR PACKET_DIAG PADATA PAGE_IDLE_FLAG PAGE_POOL PAGE_REPORTING PAHOLE_HAS_BTF_TAG PAHOLE_HAS_LANG_EXCLUDE PAHOLE_HAS_SPLIT_BTF PARPORT PARPORT_NOT_PC PARTITION_ADVANCED PCCARD PCCARD_NONSTATIC PCIEAER PCI_ENDPOINT PCI_IOV PCMCIA PCMCIA_LOAD_CIS PERCPU_STATS PERSISTENT_KEYRINGS PHONET PHYLINK PHY_CPCAP_USB PHY_QCOM_USB_HS PHY_QCOM_USB_HSIC PHY_SAMSUNG_USB2 PHY_TUSB1210 PKCS7_TEST_KEY PKCS8_PRIVATE_KEY_PARSER PLAYSTATION_FF PLFXLC PMIC_OPREGION PM_CLK PNFS_BLOCK PNFS_FILE_LAYOUT PNFS_FLEXFILE_LAYOUT PPP PPPOATM PPPOE PPPOE_HASH_BITS_4 PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPT_NOTIFIERS PRISM2_USB PROC_CHILDREN PSI PSTORE PSTORE_COMPRESS QCOM_QMI_HELPERS QNX4FS_FS QNX6FS_FS QRTR QRTR_TUN R8712U RADIO_ADAPTERS RADIO_SHARK RADIO_SHARK2 RADIO_SI470X RADIO_SI4713 RADIO_TEA575X RAID6_PQ RAID_ATTRS RC_ATI_REMOTE RC_CORE RC_DEVICES RC_XBOX_DVD RDMA_RXE RDMA_SIW RDS RDS_RDMA RDS_TCP READ_ONLY_THP_FOR_FS REALTEK_AUTOPM REED_SOLOMON REED_SOLOMON_DEC8 REGMAP REGMAP_I2C REGMAP_IRQ REGMAP_MMIO REGULATOR REGULATOR_FIXED_VOLTAGE REGULATOR_TWL4030 REISERFS_FS REISERFS_FS_POSIX_ACL REISERFS_FS_SECURITY REISERFS_FS_XATTR REISERFS_PROC_INFO RESET_CONTROLLER RFKILL RFKILL_INPUT RFKILL_LEDS RMI4_2D_SENSOR RMI4_CORE RMI4_F03 RMI4_F03_SERIO RMI4_F11 RMI4_F12 RMI4_F30 ROMFS_BACKED_BY_BOTH ROMFS_FS ROMFS_ON_BLOCK ROMFS_ON_MTD ROSE RTC_DRV_HID_SENSOR_TIME RXKAD SCHED_CORE SCREEN_INFO SCSI_FC_ATTRS SCSI_HPSA SCSI_ISCSI_ATTRS SCSI_LOGGING SCSI_NETLINK SCSI_SAS_ATA SCSI_SAS_ATTRS SCSI_SAS_LIBSAS SCSI_SCAN_ASYNC SCSI_SRP_ATTRS SCTP_COOKIE_HMAC_MD5 SCTP_COOKIE_HMAC_SHA1 SCTP_DEFAULT_COOKIE_HMAC_MD5 SECONDARY_TRUSTED_KEYRING 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UNIXWARE_DISKLABEL UNIX_DIAG USB4 USB4_NET USBIP_CORE USBIP_HOST USBIP_VHCI_HCD USBIP_VUDC USBPCWATCHDOG USB_ACM USB_ADUTUX USB_AIRSPY USB_ALI_M5632 USB_AMD5536UDC USB_AN2720 USB_APPLEDISPLAY USB_ARMLINUX USB_ATM USB_BDC_UDC USB_BELKIN USB_C67X00_HCD 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_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 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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_REALTEK 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 VDPA_USER 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 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_CMDLINE 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_NOMODESET 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 VXLAN WANT_DEV_COREDUMP WEXT_CORE WEXT_PRIV WEXT_PROC WIREGUARD WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_PURELIFI WLAN_VENDOR_SILABS X86_SGX X86_SGX_KVM X86_USER_SHADOW_STACK X86_X2APIC XARRAY_MULTI 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 ZBUD ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZONE_DEVICE ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZBUD] disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak ubsan], they are not needed testing current HEAD 60a9e718726fa7019ae00916e4b1c52498da5b60 testing commit 60a9e718726fa7019ae00916e4b1c52498da5b60 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: cba5ed9e307dfc1373c9f320a6d3f7ee6fed2a7245903e15a1493966d8a22cb0 all runs: OK false negative chance: 0.000 # git bisect start 60a9e718726fa7019ae00916e4b1c52498da5b60 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014 Bisecting: 526 revisions left to test after this (roughly 9 steps) [2e487c0fdeb9fe877db2da551aea6968cf2dbe57] apparmor: shift ouid when mediating hard links in userns determine whether the revision contains the guilty commit revision 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014 crashed and is reachable testing commit 2e487c0fdeb9fe877db2da551aea6968cf2dbe57 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 1b8102061f7635cdd04c547b866d81aed614e555b4bb1cd92e9ef14878a80bd0 all runs: OK false negative chance: 0.000 # git bisect bad 2e487c0fdeb9fe877db2da551aea6968cf2dbe57 Bisecting: 263 revisions left to test after this (roughly 8 steps) [17a66aef7ddca6f9c76407fd74938d22d88d5ce1] io_uring: don't use int for ABI determine whether the revision contains the guilty commit revision 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014 crashed and is reachable testing commit 17a66aef7ddca6f9c76407fd74938d22d88d5ce1 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: b7a4e26558a0cc8eafc882b069bb024c5d85b6abbda9770da3f062ea8e99138d all runs: OK false negative chance: 0.000 # git bisect bad 17a66aef7ddca6f9c76407fd74938d22d88d5ce1 Bisecting: 131 revisions left to test after this (roughly 7 steps) [adf2da0bf11969434fdacba0cfd94d63c2febfc7] kernel: trace: preemptirq_delay_test: use offstack cpu mask determine whether the revision contains the guilty commit revision 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014 crashed and is reachable testing commit adf2da0bf11969434fdacba0cfd94d63c2febfc7 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 9c4ca962a495e04391a3346fa3f7fd5315b689b2dbaac7121e85cdde52a563c0 all runs: OK false negative chance: 0.000 # git bisect bad adf2da0bf11969434fdacba0cfd94d63c2febfc7 Bisecting: 65 revisions left to test after this (roughly 6 steps) [6d029d85aa2b7fa22cd2742a3f9a7f3c8bbdd5da] kselftest/arm64: Fix check for setting new VLs in sve-ptrace determine whether the revision contains the guilty commit revision 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014 crashed and is reachable testing commit 6d029d85aa2b7fa22cd2742a3f9a7f3c8bbdd5da gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 0459bba4b7d7164ea970fd92b52cefec4462f3604121a89f1c6145e88c83acce all runs: OK false negative chance: 0.000 # git bisect bad 6d029d85aa2b7fa22cd2742a3f9a7f3c8bbdd5da Bisecting: 32 revisions left to test after this (roughly 5 steps) [40ff7460a9a6085fb0852bb7c936e49e6093398b] usb: early: xhci-dbc: Fix early_ioremap leak determine whether the revision contains the guilty commit revision 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014 crashed and is reachable testing commit 40ff7460a9a6085fb0852bb7c936e49e6093398b gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: b2d5ea95cb189a4e6be22448be353c605ab9ae8eb912652803f5072f9d38dfbf all runs: OK false negative chance: 0.000 # git bisect bad 40ff7460a9a6085fb0852bb7c936e49e6093398b Bisecting: 15 revisions left to test after this (roughly 4 steps) [4c39fc79ae2560c28cd1e73dd4a90170b0c7a78f] ASoC: ops: dynamically allocate struct snd_ctl_elem_value determine whether the revision contains the guilty commit revision 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014 crashed and is reachable testing commit 4c39fc79ae2560c28cd1e73dd4a90170b0c7a78f gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: df1cf19ebeaa0591759e9ca072d7fd832726ee0cd9f736ab1c439c8f91246e08 all runs: OK false negative chance: 0.000 # git bisect bad 4c39fc79ae2560c28cd1e73dd4a90170b0c7a78f Bisecting: 7 revisions left to test after this (roughly 3 steps) [b35a50d639ca5259466ef5fea85529bb4fb17d5b] fs/ntfs3: cancle set bad inode after removing name fails determine whether the revision contains the guilty commit revision 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014 crashed and is reachable testing commit b35a50d639ca5259466ef5fea85529bb4fb17d5b gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: d1db3e6ea44e3940232b7b54c2884d68068b059fd7827001c1b33824c907f5b0 all runs: OK false negative chance: 0.000 # git bisect bad b35a50d639ca5259466ef5fea85529bb4fb17d5b Bisecting: 3 revisions left to test after this (roughly 2 steps) [61e5aeff242402a032a0dd21b7b1561c715eb875] ASoC: Intel: fix SND_SOC_SOF dependencies determine whether the revision contains the guilty commit revision 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014 crashed and is reachable testing commit 61e5aeff242402a032a0dd21b7b1561c715eb875 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 1a78de40c7985c988aaa3ac8eaf29da9d5b492296eca37bbdd5e3194c1ef12f5 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in pick_link representative crash: BUG: unable to handle kernel NULL pointer dereference in pick_link, types: [NULL-POINTER-DEREFERENCE] # git bisect good 61e5aeff242402a032a0dd21b7b1561c715eb875 Bisecting: 1 revision left to test after this (roughly 1 step) [15da732109293f7da37a9be43df7ece339bc43be] audit,module: restore audit logging in load failure case determine whether the revision contains the guilty commit revision 3a8ababb8b6a0ced2be230b60b6e3ddbd8d67014 crashed and is reachable testing commit 15da732109293f7da37a9be43df7ece339bc43be gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: e67f1034b80dbc63db33d27c4c6a51b71c1aa1a0095cb15be5eef3a012ed7d89 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in pick_link representative crash: BUG: unable to handle kernel NULL pointer dereference in pick_link, types: [NULL-POINTER-DEREFERENCE] # git bisect good 15da732109293f7da37a9be43df7ece339bc43be Bisecting: 0 revisions left to test after this (roughly 0 steps) [8d1bfdd30d17c5a9f8b7db1d9eefd89d450afb5d] fs_context: fix parameter name in infofc() macro determine whether the revision contains the guilty commit revision 61e5aeff242402a032a0dd21b7b1561c715eb875 crashed and is reachable testing commit 8d1bfdd30d17c5a9f8b7db1d9eefd89d450afb5d gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 59189462c1bdfb758b825dfe4575d24f2dca92aab6c4e382bf308154de1eb783 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in pick_link representative crash: BUG: unable to handle kernel NULL pointer dereference in pick_link, types: [NULL-POINTER-DEREFERENCE] # git bisect good 8d1bfdd30d17c5a9f8b7db1d9eefd89d450afb5d b35a50d639ca5259466ef5fea85529bb4fb17d5b is the first bad commit commit b35a50d639ca5259466ef5fea85529bb4fb17d5b Author: Edward Adam Davis Date: Wed Jun 18 15:31:57 2025 +0800 fs/ntfs3: cancle set bad inode after removing name fails [ Upstream commit d99208b91933fd2a58ed9ed321af07dacd06ddc3 ] The reproducer uses a file0 on a ntfs3 file system with a corrupted i_link. When renaming, the file0's inode is marked as a bad inode because the file name cannot be deleted. The underlying bug is that make_bad_inode() is called on a live inode. In some cases it's "icache lookup finds a normal inode, d_splice_alias() is called to attach it to dentry, while another thread decides to call make_bad_inode() on it - that would evict it from icache, but we'd already found it there earlier". In some it's outright "we have an inode attached to dentry - that's how we got it in the first place; let's call make_bad_inode() on it just for shits and giggles". Fixes: 78ab59fee07f ("fs/ntfs3: Rework file operations") Reported-by: syzbot+1aa90f0eb1fc3e77d969@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=1aa90f0eb1fc3e77d969 Signed-off-by: Edward Adam Davis Signed-off-by: Konstantin Komarov Signed-off-by: Sasha Levin fs/ntfs3/frecord.c | 7 +++---- fs/ntfs3/namei.c | 10 +++------- fs/ntfs3/ntfs_fs.h | 3 +-- 3 files changed, 7 insertions(+), 13 deletions(-) accumulated error probability: 0.00 culprit signature: d1db3e6ea44e3940232b7b54c2884d68068b059fd7827001c1b33824c907f5b0 parent signature: 59189462c1bdfb758b825dfe4575d24f2dca92aab6c4e382bf308154de1eb783 revisions tested: 17, total time: 4h15m7.253974035s (build: 1h39m8.248626686s, test: 2h26m41.728719301s) first good commit: b35a50d639ca5259466ef5fea85529bb4fb17d5b fs/ntfs3: cancle set bad inode after removing name fails recipients (to): ["almaz.alexandrovich@paragon-software.com" "eadavis@qq.com" "sashal@kernel.org"] recipients (cc): []