ci starts bisection 2024-12-04 12:52:23.295002019 +0000 UTC m=+44564.010151531 bisecting cause commit starting from c245a7a79602ccbee780c004c1e4abcda66aec32 building syzkaller on b50eb251af3b122fb1b2c574dde0c3d16f6a8cfd ensuring issue is reproducible on original commit c245a7a79602ccbee780c004c1e4abcda66aec32 testing commit c245a7a79602ccbee780c004c1e4abcda66aec32 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4443eff437713b4e070e0dc95d1f5b424fe4b673cbd37e5792e6390f4826e680 all runs: crashed: KASAN: null-ptr-deref Write in sys_io_uring_register representative crash: KASAN: null-ptr-deref Write in sys_io_uring_register, types: [KASAN] check whether we can drop unnecessary instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit c245a7a79602ccbee780c004c1e4abcda66aec32 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7cc542c5ec604b45b97fa7a5a6eef164455af563afd63f9f0f0778ea42c05ba4 all runs: crashed: KASAN: null-ptr-deref Write in sys_io_uring_register representative crash: KASAN: null-ptr-deref Write in sys_io_uring_register, types: [KASAN] the bug reproduces without the instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed kconfig minimization: base=4045 full=8248 leaves diff=2127 split chunks (needed=false): <2127> split chunk #0 of len 2127 into 5 parts testing without sub-chunk 1/5 disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit c245a7a79602ccbee780c004c1e4abcda66aec32 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 292d74502ed22c37238fea45b41f8f6302a83761829cec1934a55ebb3bdb9dd5 all runs: crashed: KASAN: null-ptr-deref Write in sys_io_uring_register representative crash: KASAN: null-ptr-deref Write in sys_io_uring_register, types: [KASAN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit c245a7a79602ccbee780c004c1e4abcda66aec32 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building c245a7a79602ccbee780c004c1e4abcda66aec32: 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 LOCKDEP ATOMIC_SLEEP], they are not needed testing commit c245a7a79602ccbee780c004c1e4abcda66aec32 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ee84456771c1e715ff0f290e8dcf23e1b0a8def30a6ef47e1292f526a6019ab4 all runs: crashed: KASAN: null-ptr-deref Write in sys_io_uring_register representative crash: KASAN: null-ptr-deref Write in sys_io_uring_register, types: [KASAN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit c245a7a79602ccbee780c004c1e4abcda66aec32 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ca53963d106f38ec490eab4c874e35dca1a1fd2e850baf0bf04fd08c0b79b440 all runs: crashed: KASAN: null-ptr-deref Write in sys_io_uring_register representative crash: KASAN: null-ptr-deref Write in sys_io_uring_register, types: [KASAN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit c245a7a79602ccbee780c004c1e4abcda66aec32 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4ae7920fb6e49977e31b33c26f458ef3b255fd1e24f92d51af119ab94f4422b8 all runs: crashed: KASAN: null-ptr-deref Write in sys_io_uring_register representative crash: KASAN: null-ptr-deref Write in sys_io_uring_register, types: [KASAN] the chunk can be dropped minimized to 426 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI CHARGER_BQ24190 CMA COMMON_CLK DAX DLM DRM DRM_BRIDGE DRM_GUD DRM_I915 DRM_I915_CAPTURE_ERROR DRM_I915_COMPRESS_ERROR DRM_I915_USERPTR DRM_KMS_HELPER DRM_MIPI_DSI 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_DRIVER_CORE 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 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 LOCKDEP ATOMIC_SLEEP], they are not needed picked [v6.12 v6.11 v6.10 v6.8 v6.6 v6.4 v6.2 v6.0 v5.17 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 35 release tags testing release v6.12 testing commit adc218676eef25575469234709c2d87185ca223a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0380e852ab78b216970e9ff78e3a88878c24527a8f34e4ced0ae5ec518a95949 all runs: OK false negative chance: 0.000 # git bisect start c245a7a79602ccbee780c004c1e4abcda66aec32 adc218676eef25575469234709c2d87185ca223a Bisecting: 7731 revisions left to test after this (roughly 13 steps) [071b34dcf71523a559b6c39f5d21a268a9531b50] Merge tag 'sound-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound testing commit 071b34dcf71523a559b6c39f5d21a268a9531b50 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4167f2d7b72dbea91beeba76ee039f50ba9f88debcaa7fecb37f029139d18162 all runs: OK false negative chance: 0.000 # git bisect good 071b34dcf71523a559b6c39f5d21a268a9531b50 Bisecting: 3784 revisions left to test after this (roughly 12 steps) [b50ecc5aca4d18f1f0c4942f5c797bc85edef144] Merge tag 'perf-tools-for-v6.13-2024-11-24' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools testing commit b50ecc5aca4d18f1f0c4942f5c797bc85edef144 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8e67249b0669519909f3dcee9227c42f4518613e7a190448db36701a6ef6ece9 all runs: OK false negative chance: 0.000 # git bisect good b50ecc5aca4d18f1f0c4942f5c797bc85edef144 Bisecting: 1931 revisions left to test after this (roughly 11 steps) [0e287d31b62bb53ad81d5e59778384a40f8b6f56] Merge tag 'rtc-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux testing commit 0e287d31b62bb53ad81d5e59778384a40f8b6f56 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e48d33d38517ca82c610638b22d87a5f5f1c09798c4c232b8713209fa3fd64ac all runs: OK false negative chance: 0.000 # git bisect good 0e287d31b62bb53ad81d5e59778384a40f8b6f56 Bisecting: 863 revisions left to test after this (roughly 10 steps) [1fe1ba52df4021355c24c577ecabf06b1f580618] Merge branch 'fs-next' of linux-next testing commit 1fe1ba52df4021355c24c577ecabf06b1f580618 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e86eb9ed1ae4264bc489e1fcc6feacbf943e879ea43d3ade45d7d7814df37e23 all runs: crashed: KASAN: null-ptr-deref Write in sys_io_uring_register representative crash: KASAN: null-ptr-deref Write in sys_io_uring_register, types: [KASAN] # git bisect bad 1fe1ba52df4021355c24c577ecabf06b1f580618 Bisecting: 522 revisions left to test after this (roughly 9 steps) [358901502fbc6284abcb344a917263eff66d6c80] Merge branch 'vfs.all' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git testing commit 358901502fbc6284abcb344a917263eff66d6c80 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f30864c3d37fea6339213985f51c5ca70a1a93bf621c2e5f831cf4248cb3d5cb all runs: OK false negative chance: 0.000 # git bisect good 358901502fbc6284abcb344a917263eff66d6c80 Bisecting: 281 revisions left to test after this (roughly 8 steps) [7a42c56dcd9c4ef8457bb08ed3bf198422573382] Merge branch 'for-linux-next-fixes' of https://gitlab.freedesktop.org/drm/misc/kernel.git testing commit 7a42c56dcd9c4ef8457bb08ed3bf198422573382 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fe1678d1100e3c5758eaa956ab8a11a0b3fed23444ee9c8c1b97d6805d6a7a01 all runs: OK false negative chance: 0.000 # git bisect good 7a42c56dcd9c4ef8457bb08ed3bf198422573382 Bisecting: 127 revisions left to test after this (roughly 7 steps) [f05f7737643fc35b5d4406573987cd2d80065272] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/bmc.git testing commit f05f7737643fc35b5d4406573987cd2d80065272 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 664c729c88809f107b0b86487765e937949acb058b5431a86901d6687b20074a all runs: crashed: KASAN: null-ptr-deref Write in sys_io_uring_register representative crash: KASAN: null-ptr-deref Write in sys_io_uring_register, types: [KASAN] # git bisect bad f05f7737643fc35b5d4406573987cd2d80065272 Bisecting: 73 revisions left to test after this (roughly 6 steps) [56b127bad0ee43972ebe17d5f94dc6734d872873] foo testing commit 56b127bad0ee43972ebe17d5f94dc6734d872873 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3568c06ec822c17e2570c20047b0bbf128ea94b7ece5ed08bb318970fa9d4f11 all runs: crashed: KASAN: null-ptr-deref Write in sys_io_uring_register representative crash: KASAN: null-ptr-deref Write in sys_io_uring_register, types: [KASAN] # git bisect bad 56b127bad0ee43972ebe17d5f94dc6734d872873 Bisecting: 39 revisions left to test after this (roughly 5 steps) [af505e3c91f3237c28d6565436e7492de2cc27e5] maple_tree: index has been checked to be smaller than pivot testing commit af505e3c91f3237c28d6565436e7492de2cc27e5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ff511197c95227c593a1ac322cc7bd79bd6a39c150ccf631e4edc54926fbde32 all runs: OK false negative chance: 0.000 # git bisect good af505e3c91f3237c28d6565436e7492de2cc27e5 Bisecting: 19 revisions left to test after this (roughly 4 steps) [d2e88c71bdb07f1e5ccffbcc80d747ccd6144b75] xarray: extract helper from __xa_{insert,cmpxchg} testing commit d2e88c71bdb07f1e5ccffbcc80d747ccd6144b75 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 382c5a34221e19e4f12a3cb811524d47e81d4f80b7fe2ede4e0bb063d9326abb all runs: crashed: KASAN: null-ptr-deref Write in sys_io_uring_register representative crash: KASAN: null-ptr-deref Write in sys_io_uring_register, types: [KASAN] # git bisect bad d2e88c71bdb07f1e5ccffbcc80d747ccd6144b75 Bisecting: 9 revisions left to test after this (roughly 3 steps) [ef32b92ac605ba1b7692827330b9c60259f0af49] minmax.h: use BUILD_BUG_ON_MSG() for the lo < hi test in clamp() testing commit ef32b92ac605ba1b7692827330b9c60259f0af49 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 70ab9fb4936dce81d10b4b03f22103289e4b8b0a829e4e063a8afc665fe5971c all runs: OK false negative chance: 0.000 # git bisect good ef32b92ac605ba1b7692827330b9c60259f0af49 Bisecting: 4 revisions left to test after this (roughly 2 steps) [00af24e848be7e3cb21c310b6e9a619bfef4602f] lib/test_min_heap: use inline min heap variants to reduce attack vector testing commit 00af24e848be7e3cb21c310b6e9a619bfef4602f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ddb46cd0d01ffeeb3f9df0b4e755803d876f559ff0d4e5aa70050dc56dd69988 all runs: OK false negative chance: 0.000 # git bisect good 00af24e848be7e3cb21c310b6e9a619bfef4602f Bisecting: 2 revisions left to test after this (roughly 1 step) [4a656fc821eb8a08cdbd6428d922abe51840efb2] Documentation/core-api: min_heap: add author information testing commit 4a656fc821eb8a08cdbd6428d922abe51840efb2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 01dbed4ca1e132e7b8eff23e0a074a21d68eb3a66e49fa9bf2d003737f2184ca all runs: OK false negative chance: 0.000 # git bisect good 4a656fc821eb8a08cdbd6428d922abe51840efb2 Bisecting: 0 revisions left to test after this (roughly 1 step) [07910ac715018d640d21f0d19530b14211dc016a] xarray: extract xa_zero_to_null testing commit 07910ac715018d640d21f0d19530b14211dc016a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ff5dcdd0e60d93ea8faeebd9023395acf2d961f707444947a613f0454c217eee all runs: OK false negative chance: 0.000 # git bisect good 07910ac715018d640d21f0d19530b14211dc016a d2e88c71bdb07f1e5ccffbcc80d747ccd6144b75 is the first bad commit commit d2e88c71bdb07f1e5ccffbcc80d747ccd6144b75 Author: Tamir Duberstein Date: Tue Nov 12 14:25:37 2024 -0500 xarray: extract helper from __xa_{insert,cmpxchg} Reduce code duplication by extracting a static inline function. This function is identical to __xa_cmpxchg with the exception that it does not coerce zero entries to null on the return path. Link: https://lkml.kernel.org/r/20241112-xarray-insert-cmpxchg-v1-2-dc2bdd8c4136@gmail.com Signed-off-by: Tamir Duberstein Cc: Alice Ryhl Cc: Andreas Hindborg Cc: Matthew Wilcox Signed-off-by: Andrew Morton lib/xarray.c | 37 ++++++++++++++++++------------------- 1 file changed, 18 insertions(+), 19 deletions(-) accumulated error probability: 0.00 culprit signature: 382c5a34221e19e4f12a3cb811524d47e81d4f80b7fe2ede4e0bb063d9326abb parent signature: ff5dcdd0e60d93ea8faeebd9023395acf2d961f707444947a613f0454c217eee revisions tested: 21, total time: 7h25m3.566387637s (build: 4h53m37.150171594s, test: 2h16m48.111620572s) first bad commit: d2e88c71bdb07f1e5ccffbcc80d747ccd6144b75 xarray: extract helper from __xa_{insert,cmpxchg} recipients (to): ["akpm@linux-foundation.org" "akpm@linux-foundation.org" "linux-fsdevel@vger.kernel.org" "tamird@gmail.com" "willy@infradead.org"] recipients (cc): ["linux-kernel@vger.kernel.org"] crash: KASAN: null-ptr-deref Write in sys_io_uring_register ================================================================== BUG: KASAN: null-ptr-deref in instrument_atomic_read_write include/linux/instrumented.h:96 [inline] BUG: KASAN: null-ptr-deref in atomic_long_sub_and_test include/linux/atomic/atomic-instrumented.h:4521 [inline] BUG: KASAN: null-ptr-deref in put_cred_many include/linux/cred.h:284 [inline] BUG: KASAN: null-ptr-deref in put_cred include/linux/cred.h:298 [inline] BUG: KASAN: null-ptr-deref in io_unregister_personality io_uring/register.c:82 [inline] BUG: KASAN: null-ptr-deref in __io_uring_register io_uring/register.c:703 [inline] BUG: KASAN: null-ptr-deref in __do_sys_io_uring_register io_uring/register.c:907 [inline] BUG: KASAN: null-ptr-deref in __se_sys_io_uring_register+0xcf8/0x3370 io_uring/register.c:884 Write of size 8 at addr 0000000000000406 by task syz.3.15/3114 CPU: 1 UID: 0 PID: 3114 Comm: syz.3.15 Not tainted 6.13.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x108/0x280 lib/dump_stack.c:120 print_report+0xe8/0x550 mm/kasan/report.c:492 kasan_report+0x143/0x180 mm/kasan/report.c:602 kasan_check_range+0x282/0x290 mm/kasan/generic.c:189 instrument_atomic_read_write include/linux/instrumented.h:96 [inline] atomic_long_sub_and_test include/linux/atomic/atomic-instrumented.h:4521 [inline] put_cred_many include/linux/cred.h:284 [inline] put_cred include/linux/cred.h:298 [inline] io_unregister_personality io_uring/register.c:82 [inline] __io_uring_register io_uring/register.c:703 [inline] __do_sys_io_uring_register io_uring/register.c:907 [inline] __se_sys_io_uring_register+0xcf8/0x3370 io_uring/register.c:884 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: 0033:0x7f09ef37ff19 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:00007f09f0229058 EFLAGS: 00000246 ORIG_RAX: 00000000000001ab RAX: ffffffffffffffda RBX: 00007f09ef545fa0 RCX: 00007f09ef37ff19 RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000003 RBP: 00007f09ef3f3986 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f09ef545fa0 R15: 00007ffef35002e8 ==================================================================