ci starts bisection 2025-03-22 04:02:25.69829009 +0000 UTC m=+71.467867921 bisecting cause commit starting from d07de43e3f05576fd275c8c82e413d91932119a5 building syzkaller on 623305521a130ee29d32df86af67c671c60f61af ensuring issue is reproducible on original commit d07de43e3f05576fd275c8c82e413d91932119a5 testing commit d07de43e3f05576fd275c8c82e413d91932119a5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e52e1cd3fe97f971a0cf965a222116f1e1ae0233c989a3db47fa091e58ef61ab all runs: crashed: WARNING: refcount bug in io_send_zc_cleanup representative crash: WARNING: refcount bug in io_send_zc_cleanup, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit d07de43e3f05576fd275c8c82e413d91932119a5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b8b3b6a29423f475e3307c9c74d60631eb6272a91e2af606deb311b565a8a19e all runs: crashed: WARNING: refcount bug in io_send_zc_cleanup representative crash: WARNING: refcount bug in io_send_zc_cleanup, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=4054 full=8255 leaves diff=2116 split chunks (needed=false): <2116> split chunk #0 of len 2116 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit d07de43e3f05576fd275c8c82e413d91932119a5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b8589ca0ba02f0b0907bc3cb14bc2390014af5bc6a5b44b9614d40b3ef6a7bc0 all runs: crashed: WARNING: refcount bug in io_send_zc_cleanup representative crash: WARNING: refcount bug in io_send_zc_cleanup, types: [WARNING] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit d07de43e3f05576fd275c8c82e413d91932119a5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building d07de43e3f05576fd275c8c82e413d91932119a5: 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 [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit d07de43e3f05576fd275c8c82e413d91932119a5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0c1c3f071adfa61acb697b60d6409684fcad02024745791b79a57f732b43f585 all runs: crashed: WARNING: refcount bug in io_send_zc_cleanup representative crash: WARNING: refcount bug in io_send_zc_cleanup, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit d07de43e3f05576fd275c8c82e413d91932119a5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 17c333921a104a18164cbb146c3ce144f99b20416550f10be1d77b599c3780ae all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit d07de43e3f05576fd275c8c82e413d91932119a5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f357cef53ec2bb8f3450350a2bf574e14b3aaebc486670b42962eb7e036c8387 all runs: crashed: WARNING: refcount bug in io_send_zc_cleanup representative crash: WARNING: refcount bug in io_send_zc_cleanup, types: [WARNING] the chunk can be dropped minimized to 848 configs; suspects: [6LOWPAN AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI ATM AX25 BT BT_BREDR BT_HIDP BXT_WC_PMIC_OPREGION CFG80211 CHARGER_BQ24190 CMA COMMON_CLK DAX DLM DRM DRM_BRIDGE 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 EFS_FS ENCRYPTED_KEYS EQUALIZER EROFS_FS EROFS_FS_POSIX_ACL EROFS_FS_SECURITY EROFS_FS_XATTR EROFS_FS_ZIP EVM EVM_ADD_XATTRS EVM_ATTR_FSUUID EVM_EXTRA_SMACK_XATTRS 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 GENDWARFKSYMS GENERIC_PHY GENEVE 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 GTP GUEST_PERF_EVENTS GVE HAMRADIO HAVE_ARCH_NODE_DEV_GROUP HAVE_ARCH_USERFAULTFD_MINOR HAVE_ARCH_USERFAULTFD_WP HAVE_BOOTMEM_INFO_NODE HAVE_CLK 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_NVIDIA_SHIELD HID_ORTEK HID_PENMOUNT HID_PICOLCD HID_PICOLCD_BACKLIGHT HID_PICOLCD_CIR HID_PICOLCD_FB HID_PICOLCD_LCD HID_PICOLCD_LEDS HID_PLANTRONICS HID_PLAYSTATION 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_SMARTJOYPLUS HID_SPEEDLINK HID_STEAM HID_STEELSERIES HID_THINGM HID_THRUSTMASTER 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 INFINIBAND_VIRT_DMA INPUT_ATI_REMOTE2 INPUT_CM109 INPUT_IMS_PCU INPUT_JOYDEV INPUT_KEYSPAN_REMOTE INPUT_LEDS INPUT_MOUSEDEV INPUT_MOUSEDEV_PSAUX INPUT_POWERMATE INPUT_TABLET INPUT_TOUCHSCREEN 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_SCU_IPC INTEL_SOC_PMIC_BXTWC 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 L2TP LAPB LCD_CLASS_DEVICE LEDS_CLASS_MULTICOLOR LIBNVDIMM MAC80211 MAC802154 MEDIA_COMMON_OPTIONS 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 MODVERSIONS MPTCP MTD MTD_UBI NETFILTER_ADVANCED NETFILTER_CONNCOUNT NET_ACT_GACT NET_ACT_MIRRED NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 NFT_COMPAT NFT_COMPAT_ARP NFT_FWD_NETDEV NF_TABLES NF_TABLES_ARP NF_TABLES_NETDEV 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 NOZOMI NTFS3_FS NTFS3_FS_POSIX_ACL NTFS3_LZX_XPRESS 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 PAGE_IDLE_FLAG 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_1 PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPT_NOTIFIERS PROC_CHILDREN PROC_PID_CPUSET PSAMPLE PSI PSTORE PSTORE_COMPRESS QCOM_QMI_HELPERS QNX4FS_FS QNX6FS_FS QRTR QRTR_TUN RADIO_ADAPTERS RADIO_SHARK RADIO_SHARK2 RADIO_SI4713 RADIO_TEA575X RAID6_PQ RAID_ATTRS RAS 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 REGMAP_SPI REGULATOR REGULATOR_FIXED_VOLTAGE REGULATOR_TWL4030 RESET_CONTROLLER RFKILL RFKILL_INPUT RFKILL_LEDS RMI4_2D_SENSOR RMI4_CORE RMI4_F03 RMI4_F03_SERIO RMI4_F11 RMI4_F12 RMI4_F30 RMI4_F3A 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 SECURITY_INFINIBAND SECURITY_NETWORK_XFRM SECURITY_SMACK_NETFILTER SENSORS_AQUACOMPUTER_D5NEXT SENSORS_CORSAIR_CPRO SENSORS_CORSAIR_PSU SENSORS_GIGABYTE_WATERFORCE SENSORS_NZXT_KRAKEN2 SENSORS_NZXT_SMART2 SENSORS_POWERZ SERIAL_DEV_BUS SERIAL_DEV_CTRL_TTYPORT SERIAL_MCTRL_GPIO SGI_PARTITION SIGNATURE SIGNED_PE_FILE_VERIFICATION SKB_DECRYPTED SLHC SLIP SLIP_COMPRESSED SLIP_MODE_SLIP6 SLIP_SMART SMARTJOYPLUS_FF SMBFS SMB_SERVER SMC SMC_DIAG SMSC_PHY SMS_SDIO_DRV SMS_SIANO_DEBUGFS SMS_SIANO_MDTV SMS_SIANO_RC SMS_USB_DRV SND SND_ALOOP SND_BCD2000 SND_CTL_FAST_LOOKUP SND_CTL_LED SND_DEBUG SND_DMA_SGBUF SND_DRIVERS SND_DUMMY SND_DYNAMIC_MINORS SND_HDA SND_HDA_CODEC_ANALOG SND_HDA_CODEC_CA0110 SND_HDA_CODEC_CA0132 SND_HDA_CODEC_CIRRUS SND_HDA_CODEC_CMEDIA SND_HDA_CODEC_CONEXANT SND_HDA_CODEC_HDMI SND_HDA_CODEC_REALTEK SND_HDA_CODEC_SI3054 SND_HDA_CODEC_SIGMATEL SND_HDA_CODEC_VIA SND_HDA_COMPONENT SND_HDA_CORE SND_HDA_GENERIC SND_HDA_GENERIC_LEDS SND_HDA_HWDEP SND_HDA_I915 SND_HDA_INPUT_BEEP SND_HDA_INTEL SND_HDA_PATCH_LOADER SND_HDA_RECONFIG SND_HDA_SCODEC_COMPONENT SND_HRTIMER SND_HWDEP SND_INTEL_DSP_CONFIG SND_INTEL_NHLT SND_INTEL_SOUNDWIRE_ACPI SND_JACK SND_JACK_INPUT_DEV SND_MIXER_OSS SND_OSSEMUL SND_PCI SND_PCM SND_PCMCIA SND_PCM_OSS SND_PCM_OSS_PLUGINS SND_PCM_TIMER SND_PCM_XRUN_DEBUG SND_PROC_FS SND_RAWMIDI SND_SEQUENCER SND_SEQUENCER_OSS SND_SEQ_DEVICE SND_SEQ_DUMMY SND_SEQ_HRTIMER_DEFAULT SND_SEQ_MIDI SND_SEQ_MIDI_EVENT SND_SEQ_VIRMIDI SND_SOC SND_SOC_I2C_AND_SPI SND_SOC_SDCA_OPTIONAL SND_SUPPORT_OLD_API SND_TIMER SND_UMP SND_UMP_LEGACY_RAWMIDI SND_USB SND_USB_6FIRE SND_USB_AUDIO SND_USB_AUDIO_MIDI_V2 SND_USB_AUDIO_USE_MEDIA_CONTROLLER SND_USB_CAIAQ SND_USB_CAIAQ_INPUT SND_USB_HIFACE SND_USB_LINE6 SND_USB_POD SND_USB_PODHD SND_USB_TONEPORT SND_USB_UA101 SND_USB_US122L SND_USB_USX2Y SND_USB_VARIAX SND_VERBOSE_PROCFS SND_VIRMIDI SND_VIRTIO SND_VMASTER SND_X86 SOCK_VALIDATE_XMIT SOLARIS_X86_PARTITION SONY_FF SOUND SOUNDWIRE SOUND_OSS_CORE SOUND_OSS_CORE_PRECLAIM SPI SPI_DLN2 SPI_DYNAMIC SPI_LJCA SPI_MASTER SQUASHFS SQUASHFS_4K_DEVBLK_SIZE SQUASHFS_COMPILE_DECOMP_MULTI SQUASHFS_DECOMP_MULTI SQUASHFS_FILE_DIRECT SQUASHFS_LZ4 SQUASHFS_LZO SQUASHFS_XATTR SQUASHFS_XZ SQUASHFS_ZLIB SQUASHFS_ZSTD SSB SSB_PCIHOST_POSSIBLE SSB_PCMCIAHOST_POSSIBLE SSB_SDIOHOST_POSSIBLE STAGING STEAM_FF STP STREAM_PARSER SUNRPC_BACKCHANNEL SUN_PARTITION SW_SYNC SYSFB SYSV68_PARTITION SYSV_FS TABLET_USB_ACECAD TABLET_USB_AIPTEK TABLET_USB_HANWANG TABLET_USB_KBTAB TABLET_USB_PEGASUS TAHVO_USB TAHVO_USB_HOST_BY_DEFAULT TCG_CRB TCG_TIS TCG_TIS_CORE TCG_TPM TCP_CONG_BBR TCP_CONG_BIC TCP_CONG_CDG TCP_CONG_DCTCP TCP_CONG_HSTCP TCP_CONG_HTCP TCP_CONG_HYBLA TCP_CONG_ILLINOIS TCP_CONG_LP TCP_CONG_NV TCP_CONG_SCALABLE TCP_CONG_VEGAS TCP_CONG_VENO TCP_CONG_WESTWOOD TCP_CONG_YEAH TEE TEXTSEARCH TEXTSEARCH_BM TEXTSEARCH_FSM TEXTSEARCH_KMP THP_SWAP THRUSTMASTER_FF TIPC TIPC_CRYPTO TIPC_DIAG TIPC_MEDIA_IB TIPC_MEDIA_UDP TLS TLS_TOE TMPFS_QUOTA TOUCHSCREEN_SUR40 TOUCHSCREEN_USB_3M TOUCHSCREEN_USB_COMPOSITE TOUCHSCREEN_USB_DMC_TSC10 TOUCHSCREEN_USB_E2I TOUCHSCREEN_USB_EASYTOUCH TOUCHSCREEN_USB_EGALAX TOUCHSCREEN_USB_ELO TOUCHSCREEN_USB_ETT_TC45USB TOUCHSCREEN_USB_ETURBO TOUCHSCREEN_USB_GENERAL_TOUCH TOUCHSCREEN_USB_GOTOP TOUCHSCREEN_USB_GUNZE TOUCHSCREEN_USB_IDEALTEK TOUCHSCREEN_USB_IRTOUCH TOUCHSCREEN_USB_ITM TOUCHSCREEN_USB_JASTEC TOUCHSCREEN_USB_NEXIO TOUCHSCREEN_USB_PANJIT TOUCHSCREEN_USB_ZYTRONIC TRANSPARENT_HUGEPAGE TRANSPARENT_HUGEPAGE_MADVISE TTPCI_EEPROM TTY_PRINTK TUN_VNET_CROSS_LE TWL4030_CORE TYPEC TYPEC_ANX7411 TYPEC_DP_ALTMODE TYPEC_FUSB302 TYPEC_HD3SS3220 TYPEC_MT6360 TYPEC_MUX_FSA4480 TYPEC_MUX_GPIO_SBU TYPEC_MUX_INTEL_PMC TYPEC_MUX_NB7VPQ904M TYPEC_MUX_PI3USB30532 TYPEC_MUX_PTN36502 TYPEC_MUX_WCD939X_USBSS TYPEC_NVIDIA_ALTMODE TYPEC_RT1711H TYPEC_RT1719 TYPEC_STUSB160X TYPEC_TCPCI TYPEC_TCPCI_MAXIM TYPEC_TCPCI_MT6370 TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI TYPEC_WCOVE TYPEC_WUSB3801 UBIFS_ATIME_SUPPORT UBIFS_FS UBIFS_FS_ADVANCED_COMPR UBIFS_FS_LZO UBIFS_FS_SECURITY UBIFS_FS_XATTR UBIFS_FS_ZLIB UBIFS_FS_ZSTD UCSI_ACPI UCSI_CCG UCSI_STM32G0 UDF_FS UDMABUF UFS_FS UFS_FS_WRITE UHID ULTRIX_PARTITION UNICODE 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_AN2720 USB_APPLEDISPLAY USB_ARMLINUX 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_SUPPORT USB_DWC2 USB_GADGET USB_LJCA USB_MUSB_HDRC USB_NET_CDC_SUBSET USB_ROLES_INTEL_XHCI USB_ROLE_SWITCH USB_STORAGE_REALTEK USB_ULPI_BUS USB_USBNET VIDEO_DEV VIRTIO_FS VXLAN WAN WIRELESS WLAN WLAN_VENDOR_PURELIFI ZONE_DEVICE] disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed picked [v6.13 v6.12 v6.11 v6.9 v6.7 v6.5 v6.3 v6.1 v5.18 v5.15 v5.12 v5.9 v5.6 v5.3 v5.0 v4.19] out of 36 release tags testing release v6.13 testing commit ffd294d346d185b70e28b1a28abe367bbfe53c04 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 24299cc7ec6f0efcd50e80d9f1811a6d91b06f71ecde9aef91766c04312cfcb4 all runs: OK false negative chance: 0.000 # git bisect start d07de43e3f05576fd275c8c82e413d91932119a5 ffd294d346d185b70e28b1a28abe367bbfe53c04 Bisecting: 6019 revisions left to test after this (roughly 13 steps) [2c8d2a510c15c003749e43ac2b8e1bc79a7a00d6] Merge tag 'sound-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound testing commit 2c8d2a510c15c003749e43ac2b8e1bc79a7a00d6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 21ec448119ffb06a01e9b0e8e2a87968a5cf7fc285d5232f361fa71ac9fb3efe all runs: OK false negative chance: 0.000 # git bisect good 2c8d2a510c15c003749e43ac2b8e1bc79a7a00d6 Bisecting: 3044 revisions left to test after this (roughly 12 steps) [9ff28f2fad67e173ed25b8c3a183b15da5445d2d] Merge tag 'loongarch-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson testing commit 9ff28f2fad67e173ed25b8c3a183b15da5445d2d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4a33d472c0a7fa1fd40ce9bce943ddad0f94cb1c991b3234e252c4fe1a4f2363 all runs: OK false negative chance: 0.000 # git bisect good 9ff28f2fad67e173ed25b8c3a183b15da5445d2d Bisecting: 1523 revisions left to test after this (roughly 11 steps) [7ff71e6d923969d933e1ba7e0db857782d36cd19] Merge tag 'alpha-fixes-v6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha testing commit 7ff71e6d923969d933e1ba7e0db857782d36cd19 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: da00bde99505ba250f8f6b95f557ad68bdcda3ddd4916e6a21ced1bea1515d44 all runs: OK false negative chance: 0.000 # git bisect good 7ff71e6d923969d933e1ba7e0db857782d36cd19 Bisecting: 762 revisions left to test after this (roughly 10 steps) [edcccc6892f65eff5fd3027a13976131dc7fd733] memory: omap-gpmc: drop no compatible check testing commit edcccc6892f65eff5fd3027a13976131dc7fd733 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c4365f4eecab2abfbf331ef87956d36c7975e57c702defad46e3490442cc3771 all runs: OK false negative chance: 0.000 # git bisect good edcccc6892f65eff5fd3027a13976131dc7fd733 Bisecting: 389 revisions left to test after this (roughly 9 steps) [d1d77326f585ccf1fb388e1bcc18a630e044577f] Merge tag 'drm-xe-fixes-2025-03-13' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes testing commit d1d77326f585ccf1fb388e1bcc18a630e044577f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 981a1e97dd52d7a7d4a57909e7e5f41675e378390c287d04c79047ac0fe0e6d5 all runs: OK false negative chance: 0.000 # git bisect good d1d77326f585ccf1fb388e1bcc18a630e044577f Bisecting: 190 revisions left to test after this (roughly 8 steps) [cd3a56ac2d132beea747f7b41cc085c82fe2eac0] Merge tag 'rust-fixes-6.14-3' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux testing commit cd3a56ac2d132beea747f7b41cc085c82fe2eac0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5329a77ae14ba898a326c50458fe4643c6910404848b3d994c4af8bf3d373bc4 all runs: OK false negative chance: 0.000 # git bisect good cd3a56ac2d132beea747f7b41cc085c82fe2eac0 Bisecting: 91 revisions left to test after this (roughly 7 steps) [80c4c25460849f441d35810555539aa3adc52929] Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma testing commit 80c4c25460849f441d35810555539aa3adc52929 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4e55e14a600e10f385c1ae6b39db18a195b1789f6a351e999919225675c708db all runs: OK false negative chance: 0.000 # git bisect good 80c4c25460849f441d35810555539aa3adc52929 Bisecting: 45 revisions left to test after this (roughly 6 steps) [f45f8f0ed4c6d3a9be27ff27347408e1c1bbb364] Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm testing commit f45f8f0ed4c6d3a9be27ff27347408e1c1bbb364 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f7490f07c29c0ceb144e95894c297b9aa140b79710779f136d6106e0dd3e0ee1 all runs: OK false negative chance: 0.000 # git bisect good f45f8f0ed4c6d3a9be27ff27347408e1c1bbb364 Bisecting: 21 revisions left to test after this (roughly 5 steps) [41e09ef6c26f0bd89f93691ef967fd621a38d759] Merge tag 'amd-drm-fixes-6.14-2025-03-20' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes testing commit 41e09ef6c26f0bd89f93691ef967fd621a38d759 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c892ab4d5c974f5cc2c9b5e0138b922b96ae7550aadb1d268a4a6268e1576bee all runs: OK false negative chance: 0.000 # git bisect good 41e09ef6c26f0bd89f93691ef967fd621a38d759 Bisecting: 11 revisions left to test after this (roughly 4 steps) [b5329d5a35582abbef57562f9fb6cb26a643f252] Merge tag 'vfs-6.14-final.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs testing commit b5329d5a35582abbef57562f9fb6cb26a643f252 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d4e2677fde8dad7fa9f2a4b1d702763b252ed4aeb48c6b8ad45a406f31f1cddf all runs: OK false negative chance: 0.000 # git bisect good b5329d5a35582abbef57562f9fb6cb26a643f252 Bisecting: 6 revisions left to test after this (roughly 3 steps) [b3ee1e4609512dfff642a96b34d7e5dfcdc92d05] Merge tag 'drm-fixes-2025-03-21' of https://gitlab.freedesktop.org/drm/kernel testing commit b3ee1e4609512dfff642a96b34d7e5dfcdc92d05 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7a72b46bfb0c5186e27f1ac3fd5b9563124a6f49c648cbb3aef887bbf19c1971 all runs: OK false negative chance: 0.000 # git bisect good b3ee1e4609512dfff642a96b34d7e5dfcdc92d05 Bisecting: 4 revisions left to test after this (roughly 2 steps) [7e512f5ad24458e2c930b5be5d96ddf9e176e05d] perf/x86/rapl: Fix error handling in init_rapl_pmus() testing commit 7e512f5ad24458e2c930b5be5d96ddf9e176e05d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 65ee080d8a222aa0686891afaf90f099102032cdff06ae2676273f1d06c40974 all runs: OK false negative chance: 0.000 # git bisect good 7e512f5ad24458e2c930b5be5d96ddf9e176e05d Bisecting: 2 revisions left to test after this (roughly 1 step) [cb90c8df91d08aebb62ef77bd1c7f41a31bdc924] Merge tag 'sched-urgent-2025-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit cb90c8df91d08aebb62ef77bd1c7f41a31bdc924 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4becf3ee2222fd06c21b07a72df9e6f607201501a5f589177f1374a7687065f3 all runs: OK false negative chance: 0.000 # git bisect good cb90c8df91d08aebb62ef77bd1c7f41a31bdc924 Bisecting: 1 revision left to test after this (roughly 1 step) [cc34d8330e036b6bffa88db9ea537bae6b03948f] io_uring/net: don't clear REQ_F_NEED_CLEANUP unconditionally testing commit cc34d8330e036b6bffa88db9ea537bae6b03948f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 06ccdff82a6db137d0b219cb879c39f6081f6f061ddc40eef5b7148da4be8494 all runs: crashed: WARNING: refcount bug in io_send_zc_cleanup representative crash: WARNING: refcount bug in io_send_zc_cleanup, types: [WARNING] # git bisect bad cc34d8330e036b6bffa88db9ea537bae6b03948f cc34d8330e036b6bffa88db9ea537bae6b03948f is the first bad commit commit cc34d8330e036b6bffa88db9ea537bae6b03948f Author: Jens Axboe Date: Thu Mar 20 12:25:12 2025 -0600 io_uring/net: don't clear REQ_F_NEED_CLEANUP unconditionally io_req_msg_cleanup() relies on the fact that io_netmsg_recycle() will always fully recycle, but that may not be the case if the msg cache was already full. To ensure that normal cleanup always gets run, let io_netmsg_recycle() deal with clearing the relevant cleanup flags, as it knows exactly when that should be done. Cc: stable@vger.kernel.org Reported-by: David Wei Fixes: 75191341785e ("io_uring/net: add iovec recycling") Signed-off-by: Jens Axboe io_uring/net.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) accumulated error probability: 0.00 parent commit bcb0fda3c2da9fe4721d3e73d80e778c038e7d27 wasn't tested testing commit bcb0fda3c2da9fe4721d3e73d80e778c038e7d27 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f02b9765a28b8bafa799573ee25c9d1caa72a84ed5c078e4e7bc84e0d3c4af9e culprit signature: 06ccdff82a6db137d0b219cb879c39f6081f6f061ddc40eef5b7148da4be8494 parent signature: f02b9765a28b8bafa799573ee25c9d1caa72a84ed5c078e4e7bc84e0d3c4af9e revisions tested: 21, total time: 10h18m4.173286878s (build: 5h32m47.814157603s, test: 2h46m8.715069889s) first bad commit: cc34d8330e036b6bffa88db9ea537bae6b03948f io_uring/net: don't clear REQ_F_NEED_CLEANUP unconditionally 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: WARNING: refcount bug in io_send_zc_cleanup ------------[ cut here ]------------ refcount_t: underflow; use-after-free. WARNING: CPU: 1 PID: 4260 at lib/refcount.c:28 refcount_warn_saturate+0xad/0x130 lib/refcount.c:28 Modules linked in: CPU: 1 UID: 0 PID: 4260 Comm: syz.3.16 Not tainted 6.13.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:refcount_warn_saturate+0xad/0x130 lib/refcount.c:28 Code: 6a ff 90 0f 0b 90 90 c3 cc cc cc cc 80 3d a1 7f cf 02 00 75 97 c6 05 98 7f cf 02 01 90 48 c7 c7 62 55 ce 83 e8 34 c3 6a ff 90 <0f> 0b 90 90 c3 cc cc cc cc 80 3d 77 7f cf 02 00 0f 85 6c ff ff ff RSP: 0018:ffffc9000364fc80 EFLAGS: 00010246 RAX: 603bfb9eba684000 RBX: ffff8881110cde00 RCX: 0000000000000002 RDX: 0000000000000002 RSI: c0000000ffffdfff RDI: 00000000ffffffff RBP: 0000000000000000 R08: ffffffff8432c850 R09: 00000000ffffdfff R10: 0000000000000000 R11: 3fffffffffffffff R12: ffff888121793000 R13: ffff8881110cde78 R14: ffff888108311c00 R15: ffffffffffffbfff FS: 00007fcc2072e6c0(0000) GS:ffff88813bb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000040 CR3: 0000000111af6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: io_notif_flush io_uring/notif.h:40 [inline] io_send_zc_cleanup+0x4c/0x60 io_uring/net.c:1222 io_clean_op+0x140/0x200 io_uring/io_uring.c:406 io_free_batch_list io_uring/io_uring.c:1429 [inline] __io_submit_flush_completions+0x3d5/0x420 io_uring/io_uring.c:1470 io_submit_flush_completions io_uring/io_uring.h:159 [inline] ctx_flush_and_put+0x39/0xc0 io_uring/io_uring.c:1031 io_handle_tw_list+0x135/0x160 io_uring/io_uring.c:1071 tctx_task_work_run+0x4b/0x140 io_uring/io_uring.c:1123 tctx_task_work+0x34/0x80 io_uring/io_uring.c:1141 task_work_run+0x82/0xb0 kernel/task_work.c:239 get_signal+0x65/0x6d0 kernel/signal.c:2809 arch_do_signal_or_restart+0x89/0x2a0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x65/0x1f0 kernel/entry/common.c:218 do_syscall_64+0xed/0x1f0 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcc1f98d169 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:00007fcc2072e038 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: 0000000000001000 RBX: 00007fcc1fba5fa0 RCX: 00007fcc1f98d169 RDX: 0000000000000000 RSI: 00000000000047bc RDI: 0000000000000007 RBP: 00007fcc1fa0e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000021 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fcc1fba5fa0 R15: 00007fff10d7d418