ci2 starts bisection 2023-09-22 17:50:56.06451976 +0000 UTC m=+811988.093693862 bisecting fixing commit since 8020ae3c051d1c9ec7b7a872e226f9720547649b building syzkaller on 7939252e4ddf50bbb9912069a40d32f6c83c4f8e ensuring issue is reproducible on original commit 8020ae3c051d1c9ec7b7a872e226f9720547649b testing commit 8020ae3c051d1c9ec7b7a872e226f9720547649b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2b18917edb25ade01cd39c11ec0b2cf09c29f3cd13e9addc6d7a87286d2f4e4c all runs: crashed: WARNING in smsusb_term_device representative crash: WARNING in smsusb_term_device, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 8020ae3c051d1c9ec7b7a872e226f9720547649b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6d6398bf7ebf2c9f2abc07afadc7948b886c5f8078e9b8f7e5d103743add19b1 all runs: crashed: WARNING in smsusb_term_device representative crash: WARNING in smsusb_term_device, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed kconfig minimization: base=3703 full=7270 leaves diff=1979 split chunks (needed=false): <1979> split chunk #0 of len 1979 into 5 parts testing without sub-chunk 1/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 8020ae3c051d1c9ec7b7a872e226f9720547649b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 963f69955cef654e712421c9330e013a65235c9482257129a9dce31fbc7caeb3 all runs: crashed: WARNING in smsusb_term_device representative crash: WARNING in smsusb_term_device, types: [WARNING] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 8020ae3c051d1c9ec7b7a872e226f9720547649b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 03ea5652952295ce69d4ae36c1087580aabb820e1673ca5182bffcb37d5f95f6 all runs: crashed: WARNING in smsusb_term_device representative crash: WARNING in smsusb_term_device, types: [WARNING] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 8020ae3c051d1c9ec7b7a872e226f9720547649b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3cf28fa1535b9c10f3d7aea51ed25d45b9ddecec9dc2f6f9829e9c906dfa5d54 all runs: crashed: WARNING in smsusb_term_device representative crash: WARNING in smsusb_term_device, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 8020ae3c051d1c9ec7b7a872e226f9720547649b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b0477cacecc34198ba0d17078b4a969bf8a6873de2c37476e7411b685534e248 all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit 8020ae3c051d1c9ec7b7a872e226f9720547649b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f6a4e0b78f5e293e6b7e50337e24fd3ff738e50b1a46b96c337a1ca69701f2a5 all runs: OK false negative chance: 0.000 minimized to 791 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ASYMMETRIC_TPM_KEY_SUBTYPE ATM AX25 BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CMA CONTIG_ALLOC CRYPTO_842 CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_LZO CRYPTO_ZSTD DAX DLM DVB_CORE ENCRYPTED_KEYS EXTCON FB FRONTSWAP GENEVE GPIOLIB HAMRADIO HID_SENSOR_HUB HID_SMARTJOYPLUS HID_THRUSTMASTER HID_ZEROPLUS I2C_MUX IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN IP_SCTP L2TP LIBCRC32C LIBNVDIMM MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_COMMON_OPTIONS MEDIA_CONTROLLER MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTPLUG_SPARSE MEMORY_HOTREMOVE MFD_DLN2 MFD_RETU MFD_VIPERBOARD MMC MTD MTD_UBI NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 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 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 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_INDEX OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW OVERLAY_FS_REDIRECT_DIR PACKET_DIAG PADATA PAGE_IDLE_FLAG PAGE_REPORTING 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 PNFS_BLOCK PNFS_FILE_LAYOUT PNFS_FLEXFILE_LAYOUT PPP PPPOATM PPPOE PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPT_DYNAMIC PREEMPT_NOTIFIERS PREEMPT_RCU PRISM2_USB PROC_CHILDREN PSI PSTORE PSTORE_842_COMPRESS PSTORE_COMPRESS PSTORE_DEFLATE_COMPRESS PSTORE_DEFLATE_COMPRESS_DEFAULT PSTORE_LZ4HC_COMPRESS PSTORE_LZ4_COMPRESS PSTORE_LZO_COMPRESS PSTORE_ZSTD_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 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_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 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 SERIAL_DEV_BUS SERIAL_DEV_CTRL_TTYPORT SERIAL_MCTRL_GPIO SGI_PARTITION SIGNATURE SIGNED_PE_FILE_VERIFICATION SLHC SLIP SLIP_COMPRESSED SLIP_MODE_SLIP6 SLIP_SMART SMARTJOYPLUS_FF SMBFS_COMMON SMC SMC_DIAG SMSC_PHY SMS_SIANO_MDTV SMS_SIANO_RC SMS_USB_DRV SND SND_ALOOP SND_BCD2000 SND_CTL_LED SND_CTL_VALIDATION SND_DEBUG SND_DMA_SGBUF SND_DRIVERS SND_DUMMY 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TCP_CONG_VEGAS TCP_CONG_VENO TCP_CONG_WESTWOOD TCP_CONG_YEAH TEXTSEARCH TEXTSEARCH_BM TEXTSEARCH_FSM TEXTSEARCH_KMP THERMAL_NETLINK THP_SWAP THRUSTMASTER_FF TIPC TIPC_CRYPTO TIPC_DIAG TIPC_MEDIA_IB TIPC_MEDIA_UDP TLS TLS_TOE 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 TPM_KEY_PARSER TRANSPARENT_HUGEPAGE TRANSPARENT_HUGEPAGE_MADVISE TRUSTED_KEYS TTPCI_EEPROM TTY_PRINTK TUN TUN_VNET_CROSS_LE TWL4030_CORE TYPEC TYPEC_FUSB302 TYPEC_TCPCI TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI UBIFS_ATIME_SUPPORT UBIFS_FS UBIFS_FS_ADVANCED_COMPR UBIFS_FS_LZO UBIFS_FS_SECURITY UBIFS_FS_XATTR 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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_STKWEBCAM 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_U132_HCD 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_PLATFORM USB_XUSBATM USB_YUREX USB_ZR364XX USERFAULTFD USERIO USERMODE_DRIVER USER_RETURN_NOTIFIER U_SERIAL_CONSOLE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VETH VFIO VFIO_IOMMU_TYPE1 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_VDPA VHOST_VSOCK VIDEOBUF2_CORE VIDEOBUF2_DMA_CONTIG VIDEOBUF2_DMA_SG VIDEOBUF2_MEMOPS VIDEOBUF2_V4L2 VIDEOBUF2_VMALLOC VIDEOBUF_GEN VIDEOBUF_VMALLOC VIDEO_AU0828 VIDEO_AU0828_RC VIDEO_AU0828_V4L2 VIDEO_CPIA2 VIDEO_CS53L32A VIDEO_CX231XX VIDEO_CX231XX_ALSA VIDEO_CX231XX_DVB VIDEO_CX231XX_RC VIDEO_CX2341X VIDEO_CX25840 VIDEO_DEV VIDEO_EM28XX VIDEO_EM28XX_ALSA VIDEO_EM28XX_DVB VIDEO_EM28XX_RC VIDEO_EM28XX_V4L2 VIDEO_GO7007 VIDEO_GO7007_LOADER VIDEO_GO7007_USB VIDEO_GO7007_USB_S2250_BOARD VIDEO_HDPVR VIDEO_MSP3400 VIDEO_PVRUSB2 VIDEO_PVRUSB2_DVB VIDEO_PVRUSB2_SYSFS VIDEO_SAA711X VIDEO_STK1160 VIDEO_STK1160_COMMON VIDEO_TM6000 VIDEO_TM6000_ALSA VIDEO_TM6000_DVB VIDEO_TUNER VIDEO_TVEEPROM VIDEO_USBTV VIDEO_V4L2 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 X86_SGX X86_X2APIC X86_X32 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 XFS_SUPPORT_V4 XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZBUD ZEROPLUS_FF ZONEFS_FS ZONE_DEVICE ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_ZPOOL_DEFAULT_ZBUD] disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing current HEAD 35ecaa3632bff102decb9f2277cf99150b2bf690 testing commit 35ecaa3632bff102decb9f2277cf99150b2bf690 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1f790eb5ff6c3d00100c83a62854196150773b6656d11c92a1de94e68ca73ddf all runs: OK false negative chance: 0.000 # git bisect start 35ecaa3632bff102decb9f2277cf99150b2bf690 8020ae3c051d1c9ec7b7a872e226f9720547649b Bisecting: 1840 revisions left to test after this (roughly 11 steps) [d055ee18cab88d1ab751ead8a69f833d8382b663] xfrm: interface: rename xfrm_interface.c to xfrm_interface_core.c determine whether the revision contains the guilty commit revision 8020ae3c051d1c9ec7b7a872e226f9720547649b crashed and is reachable testing commit d055ee18cab88d1ab751ead8a69f833d8382b663 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7ed48dd5af4cfc4be35f0b596a5c7a2057f59926f2b5a148ff2add9f536c085a all runs: crashed: WARNING in smsusb_term_device representative crash: WARNING in smsusb_term_device, types: [WARNING] # git bisect good d055ee18cab88d1ab751ead8a69f833d8382b663 Bisecting: 920 revisions left to test after this (roughly 10 steps) [766c9dd00c5f1b7cd983dffe9c0ea0fb951a1cca] net: korina: handle clk prepare error in korina_probe() determine whether the revision contains the guilty commit revision 8020ae3c051d1c9ec7b7a872e226f9720547649b crashed and is reachable testing commit 766c9dd00c5f1b7cd983dffe9c0ea0fb951a1cca gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 86e9e90d35c35d12a757f8d2f1112f433720fce00e3d489be1a9b922c8a9b645 all runs: OK false negative chance: 0.000 # git bisect bad 766c9dd00c5f1b7cd983dffe9c0ea0fb951a1cca Bisecting: 459 revisions left to test after this (roughly 9 steps) [478a7a30c33cdcb79262aa06672996b381f1dd15] tty: serial: fsl_lpuart: add earlycon for imx8ulp platform determine whether the revision contains the guilty commit revision 8020ae3c051d1c9ec7b7a872e226f9720547649b crashed and is reachable testing commit 478a7a30c33cdcb79262aa06672996b381f1dd15 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 76eab45ae880cb9645ba7e41268ab95ceb8600f59d61873d8fc8daa82b9e6115 all runs: OK false negative chance: 0.000 # git bisect bad 478a7a30c33cdcb79262aa06672996b381f1dd15 Bisecting: 229 revisions left to test after this (roughly 8 steps) [95cb88a853618ef83a188b5ce29f0f0fbd8ee76c] arm64: dts: renesas: ulcb-kf: Remove flow control for SCIF1 determine whether the revision contains the guilty commit revision 8020ae3c051d1c9ec7b7a872e226f9720547649b crashed and is reachable testing commit 95cb88a853618ef83a188b5ce29f0f0fbd8ee76c gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 96055742c0ff435280edbc31a399578af1837a18a40bb4365fef85ea554b35cf all runs: crashed: WARNING in smsusb_term_device representative crash: WARNING in smsusb_term_device, types: [WARNING] # git bisect good 95cb88a853618ef83a188b5ce29f0f0fbd8ee76c Bisecting: 114 revisions left to test after this (roughly 7 steps) [8d762ad8006e1e1e60dafb5c728665222fb4540a] clk: qcom: camcc-sc7180: Add parent dependency to all camera GDSCs determine whether the revision contains the guilty commit revision 8020ae3c051d1c9ec7b7a872e226f9720547649b crashed and is reachable testing commit 8d762ad8006e1e1e60dafb5c728665222fb4540a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 959629f32130133172180edd28d90b0f1d4fdb9a131c2044e0a4d4e399ea95df all runs: crashed: WARNING in smsusb_term_device representative crash: WARNING in smsusb_term_device, types: [WARNING] # git bisect good 8d762ad8006e1e1e60dafb5c728665222fb4540a Bisecting: 57 revisions left to test after this (roughly 6 steps) [ada440952d5ed34c547a64aeea007316d16ed0e8] powerpc: allow PPC_EARLY_DEBUG_CPM only when SERIAL_CPM=y determine whether the revision contains the guilty commit revision 95cb88a853618ef83a188b5ce29f0f0fbd8ee76c crashed and is reachable testing commit ada440952d5ed34c547a64aeea007316d16ed0e8 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1bc6f9a665971b9241882608af9d9704795cc2d1783e7ebe332fbdc6af565fd5 all runs: OK false negative chance: 0.000 # git bisect bad ada440952d5ed34c547a64aeea007316d16ed0e8 Bisecting: 28 revisions left to test after this (roughly 5 steps) [10f6656c9575119a0b3b9cf0daac4391226ebcab] Revert "usb: common: usb-conn-gpio: Set last role to unknown before initial detection" determine whether the revision contains the guilty commit revision d055ee18cab88d1ab751ead8a69f833d8382b663 crashed and is reachable testing commit 10f6656c9575119a0b3b9cf0daac4391226ebcab gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 59121c81fd14345ecce20dd5e0cf336a07ef38d89ddeb568230ea9756113970f all runs: OK false negative chance: 0.000 # git bisect bad 10f6656c9575119a0b3b9cf0daac4391226ebcab Bisecting: 13 revisions left to test after this (roughly 4 steps) [c2194a361087e1f61cb733a1daaebc3ea166b586] usb: hide unused usbfs_notify_suspend/resume functions determine whether the revision contains the guilty commit revision 95cb88a853618ef83a188b5ce29f0f0fbd8ee76c crashed and is reachable testing commit c2194a361087e1f61cb733a1daaebc3ea166b586 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3f320b633973d6dd3bbe373efbbbc15f1e34a8c5eef9da0b0ffa927a97e7129e all runs: OK false negative chance: 0.000 # git bisect bad c2194a361087e1f61cb733a1daaebc3ea166b586 Bisecting: 6 revisions left to test after this (roughly 3 steps) [6ad5ded420f5d96f7c65b68135f5787a1c7e58d7] clk: qcom: reset: support resetting multiple bits determine whether the revision contains the guilty commit revision 8d762ad8006e1e1e60dafb5c728665222fb4540a crashed and is reachable testing commit 6ad5ded420f5d96f7c65b68135f5787a1c7e58d7 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 212f134633d3a91cfe463d9f0f9a435dd33ff361913621866e3277e2ba1f41e6 all runs: OK false negative chance: 0.000 # git bisect bad 6ad5ded420f5d96f7c65b68135f5787a1c7e58d7 Bisecting: 3 revisions left to test after this (roughly 2 steps) [1e1af31c4c5dbafb2c332388cb0645e64dfe85cc] media: videodev2.h: Fix struct v4l2_input tuner index comment determine whether the revision contains the guilty commit revision 8020ae3c051d1c9ec7b7a872e226f9720547649b crashed and is reachable testing commit 1e1af31c4c5dbafb2c332388cb0645e64dfe85cc gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 959629f32130133172180edd28d90b0f1d4fdb9a131c2044e0a4d4e399ea95df all runs: crashed: WARNING in smsusb_term_device representative crash: WARNING in smsusb_term_device, types: [WARNING] # git bisect good 1e1af31c4c5dbafb2c332388cb0645e64dfe85cc Bisecting: 1 revision left to test after this (roughly 1 step) [cab904bf50c492c306be9e78c1c268e8409d600a] media: i2c: Correct format propagation for st-mipid02 determine whether the revision contains the guilty commit revision 8020ae3c051d1c9ec7b7a872e226f9720547649b crashed and is reachable testing commit cab904bf50c492c306be9e78c1c268e8409d600a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 212f134633d3a91cfe463d9f0f9a435dd33ff361913621866e3277e2ba1f41e6 all runs: OK false negative chance: 0.000 # git bisect bad cab904bf50c492c306be9e78c1c268e8409d600a Bisecting: 0 revisions left to test after this (roughly 0 steps) [784a8027b8ac5a876d71cb3d3d4d97b2b6cb5920] media: usb: siano: Fix warning due to null work_func_t function pointer determine whether the revision contains the guilty commit revision 8020ae3c051d1c9ec7b7a872e226f9720547649b crashed and is reachable testing commit 784a8027b8ac5a876d71cb3d3d4d97b2b6cb5920 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 212f134633d3a91cfe463d9f0f9a435dd33ff361913621866e3277e2ba1f41e6 all runs: OK false negative chance: 0.000 # git bisect bad 784a8027b8ac5a876d71cb3d3d4d97b2b6cb5920 784a8027b8ac5a876d71cb3d3d4d97b2b6cb5920 is the first bad commit commit 784a8027b8ac5a876d71cb3d3d4d97b2b6cb5920 Author: Duoming Zhou Date: Tue May 23 07:59:32 2023 +0800 media: usb: siano: Fix warning due to null work_func_t function pointer [ Upstream commit 6f489a966fbeb0da63d45c2c66a8957eab604bf6 ] The previous commit ebad8e731c1c ("media: usb: siano: Fix use after free bugs caused by do_submit_urb") adds cancel_work_sync() in smsusb_stop_streaming(). But smsusb_stop_streaming() may be called, even if the work_struct surb->wq has not been initialized. As a result, the warning will occur. One of the processes that could lead to warning is shown below: smsusb_probe() smsusb_init_device() if (!dev->in_ep || !dev->out_ep || align < 0) { smsusb_term_device(intf); smsusb_stop_streaming() cancel_work_sync(&dev->surbs[i].wq); __cancel_work_timer() __flush_work() if (WARN_ON(!work->func)) // work->func is null The log reported by syzbot is shown below: WARNING: CPU: 0 PID: 897 at kernel/workqueue.c:3066 __flush_work+0x798/0xa80 kernel/workqueue.c:3063 Modules linked in: CPU: 0 PID: 897 Comm: kworker/0:2 Not tainted 6.2.0-rc1-syzkaller #0 RIP: 0010:__flush_work+0x798/0xa80 kernel/workqueue.c:3066 ... RSP: 0018:ffffc9000464ebf8 EFLAGS: 00010246 RAX: 1ffff11002dbb420 RBX: 0000000000000021 RCX: 1ffffffff204fa4e RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff888016dda0e8 RBP: ffffc9000464ed98 R08: 0000000000000001 R09: ffffffff90253b2f R10: 0000000000000001 R11: 0000000000000000 R12: ffff888016dda0e8 R13: ffff888016dda0e8 R14: ffff888016dda100 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd4331efe8 CR3: 000000000b48e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __cancel_work_timer+0x315/0x460 kernel/workqueue.c:3160 smsusb_stop_streaming drivers/media/usb/siano/smsusb.c:182 [inline] smsusb_term_device+0xda/0x2d0 drivers/media/usb/siano/smsusb.c:344 smsusb_init_device+0x400/0x9ce drivers/media/usb/siano/smsusb.c:419 smsusb_probe+0xbbd/0xc55 drivers/media/usb/siano/smsusb.c:567 ... This patch adds check before cancel_work_sync(). If surb->wq has not been initialized, the cancel_work_sync() will not be executed. Reported-by: syzbot+27b0b464864741b18b99@syzkaller.appspotmail.com Fixes: ebad8e731c1c ("media: usb: siano: Fix use after free bugs caused by do_submit_urb") Signed-off-by: Duoming Zhou Signed-off-by: Hans Verkuil Signed-off-by: Sasha Levin drivers/media/usb/siano/smsusb.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) accumulated error probability: 0.00 culprit signature: 212f134633d3a91cfe463d9f0f9a435dd33ff361913621866e3277e2ba1f41e6 parent signature: 959629f32130133172180edd28d90b0f1d4fdb9a131c2044e0a4d4e399ea95df revisions tested: 20, total time: 3h10m22.458064116s (build: 55m53.03460047s, test: 2h9m59.345268114s) first good commit: 784a8027b8ac5a876d71cb3d3d4d97b2b6cb5920 media: usb: siano: Fix warning due to null work_func_t function pointer recipients (to): ["duoming@zju.edu.cn" "hverkuil-cisco@xs4all.nl" "sashal@kernel.org"] recipients (cc): []