ci starts bisection 2024-11-01 13:51:39.873806703 +0000 UTC m=+107.239095444 bisecting cause commit starting from f9f24ca362a4d84dd8aeb4b8f3ec28cb6c43dd06 building syzkaller on fb888278a6b21eda7fa63551c83fd17b90305ba1 fetch other tags and check if the commit is present ensuring issue is reproducible on original commit f9f24ca362a4d84dd8aeb4b8f3ec28cb6c43dd06 testing commit f9f24ca362a4d84dd8aeb4b8f3ec28cb6c43dd06 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eef9dfa4f5fcf36bd41985ad6486b7ebc76c3ad8f614c2fe52149ab818294030 all runs: crashed: general protection fault in io_uring_show_fdinfo representative crash: general protection fault in io_uring_show_fdinfo, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit f9f24ca362a4d84dd8aeb4b8f3ec28cb6c43dd06 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0a5973a6d8bd36a69326088edbb9d2fa8a803343963630165a5e049dc559ffcc all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo representative crash: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo, 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=4045 full=8229 leaves diff=2118 split chunks (needed=false): <2118> split chunk #0 of len 2118 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit f9f24ca362a4d84dd8aeb4b8f3ec28cb6c43dd06 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e7abd5515b8c3b65941fcdd6306ebfaf4be5bc9c41e355e52fde762df4a94422 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo representative crash: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit f9f24ca362a4d84dd8aeb4b8f3ec28cb6c43dd06 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building f9f24ca362a4d84dd8aeb4b8f3ec28cb6c43dd06: drivers/gpu/drm/bridge/aux-bridge.c:116: undefined reference to `devm_drm_of_get_bridge' testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit f9f24ca362a4d84dd8aeb4b8f3ec28cb6c43dd06 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1cee9d4b2450f8831372905ec82d3f61eb3863b322a75b215ed77d4ed83b6199 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo representative crash: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit f9f24ca362a4d84dd8aeb4b8f3ec28cb6c43dd06 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4b660157220c30d3c48c8c79e2724303f9a74aaffac471537707255f2a431d07 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo representative crash: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit f9f24ca362a4d84dd8aeb4b8f3ec28cb6c43dd06 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4f62a9f1fab7b253c09fe48ca4f3ca627f96d2ecd723b581ea3a41d5c2290e1d all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo representative crash: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo, types: [UNKNOWN] the chunk can be dropped minimized to 424 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI CHARGER_BQ24190 CMA COMMON_CLK DAX DLM DRM DRM_BRIDGE DRM_PANEL DRM_PANEL_BRIDGE DRM_PANEL_EDP DRM_PANEL_ORIENTATION_QUIRKS DRM_SIMPLEDRM DRM_TTM DRM_TTM_HELPER DRM_UDL DRM_VGEM DRM_VIRTIO_GPU DRM_VIRTIO_GPU_KMS DRM_VKMS DRM_VMWGFX DUMMY DVB_AF9013 DVB_AF9033 DVB_AS102 DVB_AS102_FE DVB_B2C2_FLEXCOP DVB_B2C2_FLEXCOP_USB DVB_CORE DVB_DIB3000MB DVB_DIB3000MC DVB_EC100 DVB_GP8PSK_FE DVB_RTL2830 DVB_RTL2832 DVB_RTL2832_SDR DVB_TEST_DRIVERS DVB_TTUSB_BUDGET DVB_TTUSB_DEC DVB_USB DVB_USB_A800 DVB_USB_AF9005 DVB_USB_AF9005_REMOTE DVB_USB_AF9015 DVB_USB_AF9035 DVB_USB_ANYSEE DVB_USB_AU6610 DVB_USB_AZ6007 DVB_USB_AZ6027 DVB_USB_CE6230 DVB_USB_CINERGY_T2 DVB_USB_CXUSB DVB_USB_CXUSB_ANALOG DVB_USB_DIB0700 DVB_USB_DIB3000MC DVB_USB_DIBUSB_MB DVB_USB_DIBUSB_MC DVB_USB_DIGITV DVB_USB_DTT200U DVB_USB_DTV5100 DVB_USB_DVBSKY DVB_USB_DW2102 DVB_USB_EC168 DVB_USB_GL861 DVB_USB_GP8PSK DVB_USB_LME2510 DVB_USB_M920X DVB_USB_MXL111SF DVB_USB_NOVA_T_USB2 DVB_USB_OPERA1 DVB_USB_PCTV452E DVB_USB_RTL28XXU DVB_USB_TECHNISAT_USB2 DVB_USB_TTUSB2 DVB_USB_UMT_010 DVB_USB_V2 DVB_USB_VP702X DVB_USB_VP7045 DVB_USB_ZD1301 DVB_VIDTV DVB_ZL10353 ECRYPT_FS ECRYPT_FS_MESSAGING EDAC EEPROM_93CX6 EFS_FS ENCRYPTED_KEYS EQUALIZER EROFS_FS EROFS_FS_BACKED_BY_FILE EROFS_FS_POSIX_ACL EROFS_FS_SECURITY EROFS_FS_XATTR EROFS_FS_ZIP EVM EVM_ADD_XATTRS EVM_ATTR_FSUUID EXFAT_FS EXPORTFS_BLOCK_OPS EXT3_FS EXT3_FS_POSIX_ACL EXT3_FS_SECURITY EXTCON EXTCON_INTEL_CHT_WC EXTCON_PTN5150 EXTCON_USBC_TUSB320 F2FS_CHECK_FS F2FS_FAULT_INJECTION F2FS_FS F2FS_FS_COMPRESSION F2FS_FS_LZ4 F2FS_FS_LZ4HC F2FS_FS_LZO F2FS_FS_LZORLE F2FS_FS_POSIX_ACL F2FS_FS_SECURITY F2FS_FS_XATTR F2FS_FS_ZSTD F2FS_STAT_FS FANOTIFY FANOTIFY_ACCESS_PERMISSIONS FB FB_CFB_COPYAREA FB_CFB_FILLRECT FB_CFB_IMAGEBLIT FB_CORE FB_DEFERRED_IO FB_DEVICE FB_IOMEM_FOPS FB_IOMEM_HELPERS FB_NOTIFY FB_SYSMEM_FOPS FB_SYSMEM_HELPERS FB_SYSMEM_HELPERS_DEFERRED FB_SYS_COPYAREA FB_SYS_FILLRECT FB_SYS_IMAGEBLIT FB_TILEBLITTING FB_VESA FB_VGA16 FB_VIRTUAL FDDI FIREWIRE FIREWIRE_NET FIREWIRE_OHCI FIREWIRE_SBP2 FONT_8x16 FONT_8x8 FONT_SUPPORT FRAMEBUFFER_CONSOLE FRAMEBUFFER_CONSOLE_DETECT_PRIMARY FRAMEBUFFER_CONSOLE_ROTATION FS_DAX FS_DAX_PMD FS_ENCRYPTION FS_ENCRYPTION_ALGS FS_STACK FS_VERITY FS_VERITY_BUILTIN_SIGNATURES FTL FUSE_DAX FUSE_FS FW_LOADER_COMPRESS FW_LOADER_PAGED_BUF FW_LOADER_SYSFS FW_LOADER_USER_HELPER FW_LOADER_USER_HELPER_FALLBACK GACT_PROB GARP GENERIC_PHY GET_FREE_REGION GFS2_FS GFS2_FS_LOCKING_DLM GNSS GNSS_USB GOOGLE_COREBOOT_TABLE GOOGLE_FIRMWARE GOOGLE_MEMCONSOLE GOOGLE_MEMCONSOLE_COREBOOT GOOGLE_VPD GPIOLIB GPIOLIB_IRQCHIP GPIO_ACPI GPIO_DLN2 GPIO_LJCA GPIO_VIPERBOARD GREENASIA_FF GREYBUS GREYBUS_BRIDGED_PHY GREYBUS_ES2 GREYBUS_HID GREYBUS_USB GROUP_SCHED_WEIGHT GTP GUEST_PERF_EVENTS GVE HAVE_ARCH_NODE_DEV_GROUP HAVE_ARCH_USERFAULTFD_MINOR HAVE_ARCH_USERFAULTFD_WP HAVE_BOOTMEM_INFO_NODE HAVE_CLK_PREPARE HAVE_KVM_CPU_RELAX_INTERCEPT HAVE_KVM_DIRTY_RING HAVE_KVM_DIRTY_RING_ACQ_REL HAVE_KVM_DIRTY_RING_TSO HAVE_KVM_IRQCHIP HAVE_KVM_IRQ_BYPASS HAVE_KVM_IRQ_ROUTING HAVE_KVM_MSI HAVE_KVM_NO_POLL HAVE_KVM_PFNCACHE HAVE_KVM_PM_NOTIFIER HAVE_KVM_READONLY_MEM HAVE_SCHED_AVG_IRQ HDLC HDLC_CISCO HDLC_FR HDLC_PPP HDLC_RAW HDLC_RAW_ETH HDLC_X25 HDMI HFSPLUS_FS HFS_FS HID_ACCUTOUCH HID_ACRUX HID_ACRUX_FF HID_ALPS HID_APPLEIR HID_ASUS HID_AUREAL HID_BATTERY_STRENGTH HID_BETOP_FF HID_BIGBEN_FF HID_CMEDIA HID_CORSAIR HID_COUGAR HID_CP2112 HID_CREATIVE_SB0540 HID_ELAN HID_ELECOM HID_ELO HID_EMS_FF HID_EVISION HID_FT260 HID_GEMBIRD HID_GFRM HID_GLORIOUS HID_GOOGLE_STADIA_FF HID_GREENASIA HID_GT683R HID_HOLTEK HID_ICADE HID_JABRA HID_KEYTOUCH HID_KYE HID_LCPOWER HID_LED HID_LENOVO HID_LETSKETCH HID_LOGITECH_DJ HID_LOGITECH_HIDPP HID_MACALLY HID_MAGICMOUSE HID_MALTRON HID_MAYFLASH HID_MCP2200 HID_MCP2221 HID_MEGAWORLD_FF HID_MULTITOUCH HID_NTI HID_ORTEK HID_PENMOUNT HID_PICOLCD HID_PICOLCD_BACKLIGHT HID_PICOLCD_CIR HID_PICOLCD_FB HID_PICOLCD_LCD HID_PICOLCD_LEDS HID_PLANTRONICS HID_PRIMAX HID_PRODIKEYS HID_PXRC HID_RAZER HID_RETRODE HID_RMI HID_ROCCAT HID_SAITEK HID_SEMITEK HID_SENSOR_ACCEL_3D HID_SENSOR_ALS HID_SENSOR_CUSTOM_INTEL_HINGE HID_SENSOR_CUSTOM_SENSOR HID_SENSOR_DEVICE_ROTATION HID_SENSOR_GYRO_3D HID_SENSOR_HUB HID_SENSOR_HUMIDITY HID_SENSOR_IIO_COMMON HID_SENSOR_IIO_TRIGGER HID_SENSOR_INCLINOMETER_3D HID_SENSOR_MAGNETOMETER_3D HID_SENSOR_PRESS HID_SENSOR_PROX HID_SENSOR_TEMP HID_SIGMAMICRO HID_SPEEDLINK HID_STEELSERIES HID_THINGM HID_TIVO HID_TOPRE HID_TWINHAN HID_U2FZERO HID_UCLOGIC HID_UDRAW_PS3 HID_VIEWSONIC HID_VIVALDI HID_VIVALDI_COMMON HID_VRC2 HID_WACOM HID_WALTOP HID_WIIMOTE HID_XIAOMI HID_XINMO HID_ZYDACRON HMM_MIRROR HOLTEK_FF HOTPLUG_PCI_PCIE HPET_MMAP HPET_MMAP_DEFAULT HPFS_FS I2C_ALGOBIT I2C_CHARDEV I2C_CP2615 I2C_DESIGNWARE_CORE I2C_DESIGNWARE_PLATFORM I2C_DIOLAN_U2C I2C_DLN2 I2C_HID_ACPI I2C_HID_CORE I2C_HID_OF I2C_LJCA I2C_MUX I2C_MUX_REG I2C_ROBOTFUZZ_OSIF I2C_SI4713 I2C_SLAVE I2C_SLAVE_EEPROM I2C_TINY_USB I2C_VIPERBOARD IEEE802154 IEEE802154_6LOWPAN IEEE802154_ATUSB IEEE802154_DRIVERS IEEE802154_HWSIM IEEE802154_NL802154_EXPERIMENTAL IEEE802154_SOCKET IFB IIO IIO_BUFFER IIO_KFIFO_BUF IIO_TRIGGER IIO_TRIGGERED_BUFFER IKCONFIG IKCONFIG_PROC IMA IMA_APPRAISE IMA_APPRAISE_MODSIG IMA_DEFAULT_HASH_SHA256 IMA_LSM_RULES IMA_MEASURE_ASYMMETRIC_KEYS IMA_NG_TEMPLATE IMA_QUEUE_EARLY_BOOT_KEYS IMA_READ_POLICY IMA_WRITE_POLICY INET6_ESPINTCP INET6_ESP_OFFLOAD INET6_IPCOMP INET6_TUNNEL INET6_XFRM_TUNNEL INET_AH INET_DCCP_DIAG INET_DIAG INET_DIAG_DESTROY INET_ESP INET_ESPINTCP INET_ESP_OFFLOAD INET_IPCOMP INET_MPTCP_DIAG INET_RAW_DIAG INET_SCTP_DIAG INET_TCP_DIAG INET_UDP_DIAG INET_XFRM_TUNNEL INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_ADDR_TRANS_CONFIGFS INFINIBAND_IPOIB INFINIBAND_IPOIB_CM INFINIBAND_IPOIB_DEBUG INFINIBAND_ISER INFINIBAND_ON_DEMAND_PAGING INFINIBAND_RTRS INFINIBAND_SRP INFINIBAND_USER_ACCESS INFINIBAND_USER_MAD INFINIBAND_USER_MEM INPUT_ATI_REMOTE2 INPUT_CM109 INPUT_IMS_PCU INPUT_JOYDEV INPUT_KEYSPAN_REMOTE INPUT_LEDS INPUT_MOUSEDEV INPUT_MOUSEDEV_PSAUX INPUT_POWERMATE INPUT_UINPUT INPUT_YEALINK INTEGRITY INTEGRITY_ASYMMETRIC_KEYS INTEGRITY_AUDIT INTEGRITY_SIGNATURE INTEGRITY_TRUSTED_KEYRING INTEL_CHTWC_INT33FE INTEL_IDMA64 INTEL_IOATDMA INTEL_IOMMU_DEFAULT_ON INTEL_IOMMU_SVM INTEL_ISHTP_ECLITE INTEL_ISH_FIRMWARE_DOWNLOADER INTEL_ISH_HID INTEL_SOC_PMIC_CHTWC INTERVAL_TREE_SPAN_ITER IOMMUFD IOMMUFD_DRIVER IOMMUFD_TEST IP6_NF_MATCH_AH IP6_NF_MATCH_EUI64 IP6_NF_MATCH_FRAG IP6_NF_MATCH_HL IP6_NF_MATCH_MH IP6_NF_MATCH_OPTS IP6_NF_MATCH_RPFILTER IP6_NF_MATCH_RT IP6_NF_MATCH_SRH IP6_NF_NAT IP6_NF_RAW IP6_NF_SECURITY IP6_NF_TARGET_HL IP6_NF_TARGET_MASQUERADE IP6_NF_TARGET_NPT IP6_NF_TARGET_SYNPROXY IPV6_FOU IPV6_FOU_TUNNEL IPV6_GRE IPV6_ILA IPV6_MIP6 IPV6_MROUTE IPV6_MROUTE_MULTIPLE_TABLES IPV6_MULTIPLE_TABLES IPV6_OPTIMISTIC_DAD IPV6_PIMSM_V2 IPV6_ROUTER_PREF IPV6_ROUTE_INFO IPV6_RPL_LWTUNNEL IPV6_SEG6_BPF IPV6_SEG6_HMAC IPV6_SEG6_LWTUNNEL IPV6_SIT_6RD IPV6_SUBTREES IPV6_TUNNEL IPV6_VTI IPVLAN IPVLAN_L3S IPVTAP IP_DCCP IP_DCCP_CCID3 IP_DCCP_TFRC_LIB IP_FIB_TRIE_STATS IP_MROUTE_MULTIPLE_TABLES IP_NF_ARPFILTER IP_NF_ARPTABLES IP_NF_ARP_MANGLE IP_NF_MATCH_AH IP_NF_MATCH_ECN IP_NF_MATCH_RPFILTER IP_NF_MATCH_TTL IP_NF_RAW IP_NF_SECURITY IP_NF_TARGET_ECN IP_NF_TARGET_NETMAP IP_NF_TARGET_REDIRECT IP_NF_TARGET_SYNPROXY IP_NF_TARGET_TTL IP_ROUTE_CLASSID IP_SCTP IP_SET IP_SET_BITMAP_IP IP_SET_BITMAP_IPMAC IP_SET_BITMAP_PORT IP_SET_HASH_IP IP_SET_HASH_IPMAC IP_SET_HASH_IPMARK IP_SET_HASH_IPPORT IP_SET_HASH_IPPORTIP IP_SET_HASH_IPPORTNET IP_SET_HASH_MAC IP_SET_HASH_NET IP_SET_HASH_NETIFACE IP_SET_HASH_NETNET IP_SET_HASH_NETPORT IP_SET_HASH_NETPORTNET IP_SET_LIST_SET IP_VS IP_VS_DH IP_VS_FO IP_VS_FTP IP_VS_IPV6 IP_VS_LBLC IP_VS_LBLCR IP_VS_PROTO_TCP IRQ_TIME_ACCOUNTING LAPB LCD_CLASS_DEVICE MAC802154 MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_VIPERBOARD MPTCP MTD NETFILTER_ADVANCED NET_ACT_GACT NET_ACT_MIRRED NET_IPGRE_DEMUX NFT_COMPAT NFT_COMPAT_ARP NFT_FWD_NETDEV NF_TABLES NF_TABLES_ARP NF_TABLES_NETDEV RADIO_ADAPTERS RADIO_SI4713 RAS RC_CORE REGULATOR RFKILL SND SOUND STAGING TRANSPARENT_HUGEPAGE TYPEC TYPEC_MUX_PI3USB30532 USB_LJCA USB_ROLES_INTEL_XHCI USB_ROLE_SWITCH VIDEO_DEV VIRTIO_FS WAN ZONE_DEVICE] disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed picked [v6.11 v6.10 v6.9 v6.7 v6.5 v6.3 v6.1 v5.19 v5.16 v5.13 v5.10 v5.7 v5.4 v5.1 v4.19] out of 34 release tags testing release v6.11 testing commit 98f7e32f20d28ec452afb208f9cffc08448a2652 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9a4eb2690cc4c27f8f75a03fe932f53ac426b5e8f4d0fc901ca37fecb6464c5f all runs: OK false negative chance: 0.000 # git bisect start f9f24ca362a4d84dd8aeb4b8f3ec28cb6c43dd06 98f7e32f20d28ec452afb208f9cffc08448a2652 Bisecting: 11011 revisions left to test after this (roughly 14 steps) [b707512b8b07396f8982103a84285a165a1bd94c] Merge tag 'staging-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging testing commit b707512b8b07396f8982103a84285a165a1bd94c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1d195098eae17a29b1a27ee8c9393a57c45d38e6cb2333bf5fdc259cf6d1871b all runs: OK false negative chance: 0.000 # git bisect good b707512b8b07396f8982103a84285a165a1bd94c Bisecting: 5479 revisions left to test after this (roughly 13 steps) [71462022ce763028ca02a9a27d25aedd821a0c3a] Merge branch 'next' of git://git.linuxtv.org/media testing commit 71462022ce763028ca02a9a27d25aedd821a0c3a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c1eddc881ecc136f6ddf0c4e3ad53ca65d8c2016f1e18d5651434b85f90824ba all runs: OK false negative chance: 0.000 # git bisect good 71462022ce763028ca02a9a27d25aedd821a0c3a Bisecting: 2720 revisions left to test after this (roughly 12 steps) [825950559de24f4a0c0d20a64cfdc5b7e70a1349] Merge branch 'drm-xe-next' of https://gitlab.freedesktop.org/drm/xe/kernel testing commit 825950559de24f4a0c0d20a64cfdc5b7e70a1349 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ffb9d89cc0480270b04caad063884b0c4a4b799b6c05f2e9621bc02578f5c060 all runs: OK false negative chance: 0.000 # git bisect good 825950559de24f4a0c0d20a64cfdc5b7e70a1349 Bisecting: 1369 revisions left to test after this (roughly 10 steps) [0642c2d4265befb33be5276a9aa06df74041dec8] Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm.git testing commit 0642c2d4265befb33be5276a9aa06df74041dec8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 79c62849f0d1b3c586f084323ccbaf41de3c96db34d36b6cdccc2ff3244a5d30 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo representative crash: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo, types: [UNKNOWN] # git bisect bad 0642c2d4265befb33be5276a9aa06df74041dec8 Bisecting: 677 revisions left to test after this (roughly 9 steps) [85b6d544fae369c35478466b6ad47953a77ff42b] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git testing commit 85b6d544fae369c35478466b6ad47953a77ff42b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 650a1db3f9c7405d46ff4bb807b1a2a1f070c67c70941f2549a6b18c6b6ce87a all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo representative crash: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo, types: [UNKNOWN] # git bisect bad 85b6d544fae369c35478466b6ad47953a77ff42b Bisecting: 320 revisions left to test after this (roughly 8 steps) [0bdf5b4ffba59885261082888ceda1b76841e507] Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git testing commit 0bdf5b4ffba59885261082888ceda1b76841e507 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4789cfa89586b2a4ac6cf8dd76136c7a0f57f223c85acade2419c02370da79cb all runs: OK false negative chance: 0.000 # git bisect good 0bdf5b4ffba59885261082888ceda1b76841e507 Bisecting: 125 revisions left to test after this (roughly 7 steps) [210d8204d769f4583bc3bfc6f9c2bb09553e5b87] Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc.git testing commit 210d8204d769f4583bc3bfc6f9c2bb09553e5b87 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 390340085f8aa225435f2e20222eba13afe22e4dc9f6cdf49e7fad0185d95588 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo representative crash: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo, types: [UNKNOWN] # git bisect bad 210d8204d769f4583bc3bfc6f9c2bb09553e5b87 Bisecting: 96 revisions left to test after this (roughly 7 steps) [400617d2effb70c15e3e8d59ec9b6814bfc86e3e] Merge branch 'for-6.13/block' into for-next testing commit 400617d2effb70c15e3e8d59ec9b6814bfc86e3e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5b5e097b122b404acb5005103590c9079a2954529de9382c28a408b8bfa199b3 all runs: OK false negative chance: 0.000 # git bisect good 400617d2effb70c15e3e8d59ec9b6814bfc86e3e Bisecting: 48 revisions left to test after this (roughly 6 steps) [9cbb2358bb1f17b61bf75cbebc2c9746b3a29e32] mmc: sdhci-uhs2: add request() and others testing commit 9cbb2358bb1f17b61bf75cbebc2c9746b3a29e32 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dea64fdc4846a35a332ddbba43219891ccea28fa6edfbefdc25cb38521b8ead3 all runs: OK false negative chance: 0.000 # git bisect good 9cbb2358bb1f17b61bf75cbebc2c9746b3a29e32 Bisecting: 21 revisions left to test after this (roughly 5 steps) [025c60e70682b0f402d2768ad624c4450d1e6a11] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux testing commit 025c60e70682b0f402d2768ad624c4450d1e6a11 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 68be72600228437a042ca509ed051a63a899b2e0dc47b0c3766d1bbb19b0f0c1 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo representative crash: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo, types: [UNKNOWN] # git bisect bad 025c60e70682b0f402d2768ad624c4450d1e6a11 Bisecting: 10 revisions left to test after this (roughly 4 steps) [f91df7f7dd71db9e1d3d18f3a59b05d9fb30c48f] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git testing commit f91df7f7dd71db9e1d3d18f3a59b05d9fb30c48f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4ca71c5b98cfbaee277177a5c6cbe8cb60f9511ddb176b6736ce174581975be1 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo representative crash: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo, types: [UNKNOWN] # git bisect bad f91df7f7dd71db9e1d3d18f3a59b05d9fb30c48f Bisecting: 7 revisions left to test after this (roughly 3 steps) [2ca99346cd626ac569aba0781d0bc4824c381371] dm vdo: Remove unused functions testing commit 2ca99346cd626ac569aba0781d0bc4824c381371 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bc1db778ae29e769d7e73078720526494126bb8c541e2c606896e484c74ef2ec all runs: OK false negative chance: 0.000 # git bisect good 2ca99346cd626ac569aba0781d0bc4824c381371 Bisecting: 3 revisions left to test after this (roughly 2 steps) [be856e188156cb5eed779f5b1b1123efab8f6d07] Merge branch 'for-6.13/io_uring' into for-next testing commit be856e188156cb5eed779f5b1b1123efab8f6d07 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0e7bcb6965ba8c64121059b1df196ae6302ed37ccd309be0d186e9aa5ac81da2 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo representative crash: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo, types: [UNKNOWN] # git bisect bad be856e188156cb5eed779f5b1b1123efab8f6d07 Bisecting: 1 revision left to test after this (roughly 1 step) [8fdef921e4086fa24c03d2081fe06930f7a94d3b] Merge branch 'for-6.13/block' into for-next testing commit 8fdef921e4086fa24c03d2081fe06930f7a94d3b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2ffb248e87068a2e17e523274f0ac8879e6b7af50038cfb7d9a1203f686bb304 all runs: OK false negative chance: 0.000 # git bisect good 8fdef921e4086fa24c03d2081fe06930f7a94d3b Bisecting: 0 revisions left to test after this (roughly 0 steps) [661768085e99aad356ebc77d78ac41fd02eccbe3] io_uring/rsrc: get rid of the empty node and dummy_ubuf testing commit 661768085e99aad356ebc77d78ac41fd02eccbe3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 633c71d7c136f348e795a790812a5ce956f269659216fb292429475d20fb1f78 run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo run #9: boot failed: can't ssh into the instance representative crash: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo, types: [UNKNOWN] # git bisect bad 661768085e99aad356ebc77d78ac41fd02eccbe3 661768085e99aad356ebc77d78ac41fd02eccbe3 is the first bad commit commit 661768085e99aad356ebc77d78ac41fd02eccbe3 Author: Jens Axboe Date: Wed Oct 30 09:51:58 2024 -0600 io_uring/rsrc: get rid of the empty node and dummy_ubuf The empty node was used as a placeholder for a sparse entry, but it didn't really solve any issues. The caller still has to check for whether it's the empty node or not, it may as well just check for a NULL return instead. The dummy_ubuf was used for a sparse buffer entry, but NULL will serve the same purpose there of ensuring an -EFAULT on attempted import. Just use NULL for a sparse node, regardless of whether or not it's a file or buffer resource. Signed-off-by: Jens Axboe io_uring/io_uring.c | 4 ++-- io_uring/notif.c | 4 ++-- io_uring/rsrc.c | 43 +++++++++++++++++-------------------------- io_uring/rsrc.h | 23 +++++++---------------- io_uring/splice.c | 2 +- 5 files changed, 29 insertions(+), 47 deletions(-) accumulated error probability: 0.00 parent commit 0f576012ae2ff08009ce91e2294832e2b88aba06 wasn't tested testing commit 0f576012ae2ff08009ce91e2294832e2b88aba06 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6a613e1a3d3af162ff4624c76b428f56cc4123cff9f3666618eb2297c9f009eb culprit signature: 633c71d7c136f348e795a790812a5ce956f269659216fb292429475d20fb1f78 parent signature: 6a613e1a3d3af162ff4624c76b428f56cc4123cff9f3666618eb2297c9f009eb revisions tested: 22, total time: 8h20m37.987108831s (build: 2h28m1.019158069s, test: 2h45m13.169318412s) first bad commit: 661768085e99aad356ebc77d78ac41fd02eccbe3 io_uring/rsrc: get rid of the empty node and dummy_ubuf recipients (to): ["asml.silence@gmail.com" "axboe@kernel.dk" "axboe@kernel.dk" "io-uring@vger.kernel.org"] recipients (cc): ["linux-kernel@vger.kernel.org"] crash: BUG: unable to handle kernel NULL pointer dereference in io_uring_show_fdinfo BUG: kernel NULL pointer dereference, address: 0000000000000018 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 800000010b3b6067 P4D 800000010b3b6067 PUD 105724067 PMD 0 Oops: Oops: 0000 [#1] PREEMPT SMP PTI CPU: 0 UID: 0 PID: 3464 Comm: syz.3.15 Not tainted 6.12.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:io_uring_show_fdinfo+0x462/0x6b0 io_uring/fdinfo.c:181 Code: c6 06 8e ec 82 e8 2e 70 ea fe 45 85 ff 0f 84 4c 01 00 00 41 83 bd 20 01 00 00 00 74 38 31 ed 49 8b 85 28 01 00 00 48 8b 04 e8 <48> 8b 40 18 48 8b 08 44 8b 40 08 4c 89 e7 48 c7 c6 14 8e ec 82 89 RSP: 0018:ffffc900022ebb90 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000001000 RDX: 0000000000000000 RSI: ffffffff82ec8e12 RDI: ffff888105bbe0f8 RBP: 0000000000000000 R08: ffff0a00ffffff00 R09: 00000000ffff0a00 R10: 0000001000000000 R11: 0000000400000001 R12: ffff888105b081d0 R13: ffff888104330000 R14: 0000000000000d89 R15: 0000000000000001 FS: 00007fd4a78406c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000018 CR3: 0000000105b66000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: seq_show+0x1b4/0x1f0 fs/proc/fd.c:68 seq_read_iter+0x146/0x410 fs/seq_file.c:230 seq_read+0x134/0x160 fs/seq_file.c:162 do_loop_readv_writev fs/read_write.c:854 [inline] vfs_readv+0x22e/0x330 fs/read_write.c:1027 do_preadv fs/read_write.c:1142 [inline] __do_sys_preadv fs/read_write.c:1192 [inline] __se_sys_preadv fs/read_write.c:1187 [inline] __x64_sys_preadv+0x8c/0xf0 fs/read_write.c:1187 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x8d/0x170 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd4a697e719 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:00007fd4a7840038 EFLAGS: 00000246 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 00007fd4a6b35f80 RCX: 00007fd4a697e719 RDX: 0000000000000001 RSI: 0000000020000640 RDI: 0000000000000004 RBP: 00007fd4a69f132e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fd4a6b35f80 R15: 00007ffc380335e8 Modules linked in: CR2: 0000000000000018 ---[ end trace 0000000000000000 ]--- RIP: 0010:io_uring_show_fdinfo+0x462/0x6b0 io_uring/fdinfo.c:181 Code: c6 06 8e ec 82 e8 2e 70 ea fe 45 85 ff 0f 84 4c 01 00 00 41 83 bd 20 01 00 00 00 74 38 31 ed 49 8b 85 28 01 00 00 48 8b 04 e8 <48> 8b 40 18 48 8b 08 44 8b 40 08 4c 89 e7 48 c7 c6 14 8e ec 82 89 RSP: 0018:ffffc900022ebb90 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000001000 RDX: 0000000000000000 RSI: ffffffff82ec8e12 RDI: ffff888105bbe0f8 RBP: 0000000000000000 R08: ffff0a00ffffff00 R09: 00000000ffff0a00 R10: 0000001000000000 R11: 0000000400000001 R12: ffff888105b081d0 R13: ffff888104330000 R14: 0000000000000d89 R15: 0000000000000001 FS: 00007fd4a78406c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000018 CR3: 0000000105b66000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 5 bytes skipped: 0: e8 2e 70 ea fe call 0xfeea7033 5: 45 85 ff test %r15d,%r15d 8: 0f 84 4c 01 00 00 je 0x15a e: 41 83 bd 20 01 00 00 cmpl $0x0,0x120(%r13) 15: 00 16: 74 38 je 0x50 18: 31 ed xor %ebp,%ebp 1a: 49 8b 85 28 01 00 00 mov 0x128(%r13),%rax 21: 48 8b 04 e8 mov (%rax,%rbp,8),%rax * 25: 48 8b 40 18 mov 0x18(%rax),%rax <-- trapping instruction 29: 48 8b 08 mov (%rax),%rcx 2c: 44 8b 40 08 mov 0x8(%rax),%r8d 30: 4c 89 e7 mov %r12,%rdi 33: 48 c7 c6 14 8e ec 82 mov $0xffffffff82ec8e14,%rsi 3a: 89 .byte 0x89