ci starts bisection 2023-08-16 22:05:32.257684369 +0000 UTC m=+30619.013953381 bisecting cause commit starting from 950fe35831af0c1f9d87d4105843c3b7f1fbf09b building syzkaller on 7773e940a7feacbe318f849807fe586fee985805 ensuring issue is reproducible on original commit 950fe35831af0c1f9d87d4105843c3b7f1fbf09b testing commit 950fe35831af0c1f9d87d4105843c3b7f1fbf09b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2bd6f6d5cf6ac1dcbee91279927755055b8b8c83d9a3099feb67ea0a62b2585f all runs: crashed: WARNING in dev_index_reserve representative crash: WARNING in dev_index_reserve, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit 950fe35831af0c1f9d87d4105843c3b7f1fbf09b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dfdaf1986010d1c30f998438ce0f1cc36585eb6d48becabaca9ad25fd4f8976e all runs: crashed: WARNING in dev_index_reserve representative crash: WARNING in dev_index_reserve, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed kconfig minimization: base=3883 full=7656 leaves diff=1999 split chunks (needed=false): <1999> split chunk #0 of len 1999 into 5 parts testing without sub-chunk 1/5 disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 950fe35831af0c1f9d87d4105843c3b7f1fbf09b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 004c9840167202c2301e86150abb95e1e0fdbcf104ac755fecc627a01a1c17f2 run #0: crashed: WARNING in dev_index_reserve run #1: crashed: WARNING in dev_index_reserve run #2: crashed: WARNING in dev_index_reserve run #3: crashed: WARNING in dev_index_reserve run #4: crashed: WARNING in dev_index_reserve run #5: crashed: WARNING in dev_index_reserve run #6: crashed: WARNING in dev_index_reserve run #7: crashed: WARNING in dev_index_reserve run #8: crashed: WARNING in dev_index_reserve run #9: basic kernel testing failed: lost connection to test machine representative crash: WARNING in dev_index_reserve, types: [WARNING] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 950fe35831af0c1f9d87d4105843c3b7f1fbf09b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 650543ff465830697837d9a2bfd0d671893827e430a8090bd2e6dc8c561506db all runs: crashed: WARNING in dev_index_reserve representative crash: WARNING in dev_index_reserve, types: [WARNING] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 950fe35831af0c1f9d87d4105843c3b7f1fbf09b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0ac13bbc63d90234c12507ba67a1d84cb0990608327c14acce858df44ab1ce97 all runs: crashed: WARNING in dev_index_reserve representative crash: WARNING in dev_index_reserve, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit 950fe35831af0c1f9d87d4105843c3b7f1fbf09b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 769f487063e2bd79b22639da59b4ae8a53c4e4433fa40b2ace909e6b872e2eeb all runs: crashed: WARNING in dev_index_reserve representative crash: WARNING in dev_index_reserve, types: [WARNING] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit 950fe35831af0c1f9d87d4105843c3b7f1fbf09b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3532b2853bc2ed8ac71e34ea8b33153dc97503381279dc3e819d890f31bb132d all runs: OK false negative chance: 0.000 minimized to 399 configs; suspects: [ARCH_ENABLE_MEMORY_HOTREMOVE ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CMA COMMON_CLK CONTIG_ALLOC CRYPTO_842 CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_LZO CRYPTO_ZSTD DVB_CORE EXTCON FB GPIOLIB HID_ZEROPLUS I2C_MUX IIO IOMMUFD IRQ_REMAP KVM KVM_INTEL LIBNVDIMM MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_CONTROLLER MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_VIPERBOARD PARPORT PCCARD PCMCIA PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RC_CORE RFKILL SND SOUND SPI SSB TAP TARGET_CORE TUN USB_AMD5536UDC USB_ATM USB_CONFIGFS USB_CONFIGFS_F_HID USB_CONFIGFS_F_LB_SS USB_CONFIGFS_F_MIDI USB_CONFIGFS_F_PRINTER USB_CONFIGFS_F_TCM USB_CONFIGFS_F_UAC1 USB_CONFIGFS_F_UAC1_LEGACY USB_CONFIGFS_F_UAC2 USB_CONFIGFS_F_UVC USB_CONFIGFS_MASS_STORAGE USB_CONFIGFS_NCM USB_CONFIGFS_OBEX USB_CONFIGFS_PHONET USB_CONFIGFS_RNDIS USB_CONFIGFS_SERIAL USB_CXACRU USB_CYPRESS_CY7C63 USB_CYTHERM USB_DSBR USB_DUMMY_HCD USB_DWC2 USB_DWC2_HOST USB_DWC2_PCI USB_DWC3 USB_DWC3_GADGET USB_DWC3_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI USB_DYNAMIC_MINORS USB_EG20T USB_EHCI_HCD_PLATFORM USB_EHCI_ROOT_HUB_TT USB_EHSET_TEST_FIXTURE USB_EMI26 USB_EMI62 USB_EPSON2888 USB_EZUSB_FX2 USB_FEW_INIT_RETRIES USB_F_ACM USB_F_ECM USB_F_EEM USB_F_FS USB_F_HID USB_F_MASS_STORAGE USB_F_MIDI USB_F_NCM USB_F_OBEX USB_F_PHONET USB_F_PRINTER USB_F_RNDIS USB_F_SERIAL USB_F_SS_LB USB_F_SUBSET USB_F_TCM USB_F_UAC1 USB_F_UAC1_LEGACY USB_F_UAC2 USB_F_UVC USB_GADGET USB_GADGETFS USB_GADGET_DEBUG_FILES USB_GADGET_DEBUG_FS USB_GL860 USB_GOKU USB_GPIO_VBUS USB_GR_UDC USB_GSPCA USB_GSPCA_BENQ USB_GSPCA_CONEX USB_GSPCA_CPIA1 USB_GSPCA_DTCS033 USB_GSPCA_ETOMS USB_GSPCA_FINEPIX USB_GSPCA_JEILINJ USB_GSPCA_JL2005BCD USB_GSPCA_KINECT USB_GSPCA_KONICA USB_GSPCA_MARS USB_GSPCA_MR97310A USB_GSPCA_NW80X USB_GSPCA_OV519 USB_GSPCA_OV534 USB_GSPCA_OV534_9 USB_GSPCA_PAC207 USB_GSPCA_PAC7302 USB_GSPCA_PAC7311 USB_GSPCA_SE401 USB_GSPCA_SN9C2028 USB_GSPCA_SN9C20X USB_GSPCA_SONIXB USB_GSPCA_SONIXJ USB_GSPCA_SPCA1528 USB_GSPCA_SPCA500 USB_GSPCA_SPCA501 USB_GSPCA_SPCA505 USB_GSPCA_SPCA506 USB_GSPCA_SPCA508 USB_GSPCA_SPCA561 USB_GSPCA_SQ905 USB_GSPCA_SQ905C USB_GSPCA_SQ930X USB_GSPCA_STK014 USB_GSPCA_STK1135 USB_GSPCA_STV0680 USB_GSPCA_SUNPLUS USB_GSPCA_T613 USB_GSPCA_TOPRO USB_GSPCA_TOUPTEK USB_GSPCA_TV8532 USB_GSPCA_VC032X USB_GSPCA_VICAM USB_GSPCA_XIRLINK_CIT USB_GSPCA_ZC3XX USB_HACKRF USB_HCD_BCMA USB_HCD_SSB USB_HSIC_USB3503 USB_HSIC_USB4604 USB_HSO USB_HUB_USB251XB USB_IDMOUSE USB_IOWARRIOR USB_IPHETH USB_ISIGHTFW USB_ISP116X_HCD USB_ISP1301 USB_ISP1760 USB_ISP1760_DUAL_ROLE USB_ISP1760_HCD USB_ISP1761_UDC USB_KAWETH USB_KC2190 USB_KEENE USB_LAN78XX USB_LCD USB_LD USB_LEDS_TRIGGER_USBPORT USB_LED_TRIG USB_LEGOTOWER USB_LIBCOMPOSITE USB_LINK_LAYER_TEST USB_M5602 USB_MA901 USB_MAX3421_HCD USB_MDC800 USB_MICROTEK USB_MR800 USB_MSI2500 USB_MUSB_DUAL_ROLE USB_MUSB_HDRC USB_MV_U3D USB_MV_UDC USB_NET2272 USB_NET2272_DMA USB_NET2280 USB_NET_AX88179_178A USB_NET_AX8817X USB_NET_CDCETHER USB_NET_CDC_EEM USB_NET_CDC_MBIM USB_NET_CDC_NCM USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_CH9200 USB_NET_CX82310_ETH USB_NET_DM9601 USB_NET_GL620A USB_NET_HUAWEI_CDC_NCM USB_NET_INT51X1 USB_NET_KALMIA USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_QMI_WWAN USB_NET_RNDIS_HOST USB_NET_RNDIS_WLAN USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_OXU210HP_HCD USB_PEGASUS USB_PULSE8_CEC USB_PWC USB_PWC_INPUT_EVDEV USB_PXA27X USB_R8A66597 USB_R8A66597_HCD USB_RAINSHADOW_CEC USB_RAREMONO USB_RAW_GADGET USB_RTL8150 USB_RTL8152 USB_RTL8153_ECM USB_S2255 USB_SERIAL USB_SERIAL_AIRCABLE USB_SERIAL_ARK3116 USB_SERIAL_BELKIN USB_SERIAL_CH341 USB_SERIAL_CONSOLE USB_SERIAL_CP210X USB_SERIAL_CYBERJACK USB_SERIAL_CYPRESS_M8 USB_SERIAL_DEBUG USB_SERIAL_DIGI_ACCELEPORT USB_SERIAL_EDGEPORT USB_SERIAL_EDGEPORT_TI USB_SERIAL_EMPEG USB_SERIAL_F81232 USB_SERIAL_F8153X USB_SERIAL_FTDI_SIO USB_SERIAL_GARMIN USB_SERIAL_GENERIC USB_SERIAL_IPAQ USB_SERIAL_IPW USB_SERIAL_IR USB_SERIAL_IUU USB_SERIAL_KEYSPAN USB_SERIAL_KEYSPAN_PDA USB_SERIAL_KLSI USB_SERIAL_KOBIL_SCT USB_SERIAL_MCT_U232 USB_SERIAL_METRO USB_SERIAL_MOS7715_PARPORT USB_SERIAL_MOS7720 USB_SERIAL_MOS7840 USB_SERIAL_MXUPORT USB_SERIAL_NAVMAN USB_SERIAL_OMNINET USB_SERIAL_OPTICON USB_SERIAL_OPTION USB_SERIAL_OTI6858 USB_SERIAL_PL2303 USB_SERIAL_QCAUX USB_SERIAL_QT2 USB_SERIAL_QUALCOMM USB_SERIAL_SAFE USB_SERIAL_SIERRAWIRELESS USB_SERIAL_SIMPLE USB_SERIAL_SPCP8X5 USB_SERIAL_SSU100 USB_SERIAL_SYMBOL USB_SERIAL_TI USB_SERIAL_UPD78F0730 USB_SERIAL_VISOR USB_SERIAL_WHITEHEAT USB_SERIAL_WISHBONE USB_SERIAL_WWAN USB_SERIAL_XR USB_SERIAL_XSENS_MT USB_SEVSEG USB_SI470X USB_SI4713 USB_SIERRA_NET USB_SISUSBVGA USB_SL811_CS USB_SL811_HCD USB_SL811_HCD_ISO USB_SNP_CORE USB_SPEEDTOUCH USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_ENE_UB6250 USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_STV06XX USB_TEST USB_TMC USB_TRANCEVIBRATOR USB_UAS USB_UEAGLEATM USB_ULPI_BUS USB_USBNET USB_USS720 USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_VIDEO_CLASS USB_VIDEO_CLASS_INPUT_EVDEV USB_VL600 USB_WDM USB_XHCI_DBGCAP USB_XHCI_PLATFORM USB_XUSBATM USB_YUREX USERFAULTFD USERIO USERMODE_DRIVER USER_RETURN_NOTIFIER UVC_COMMON U_SERIAL_CONSOLE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VDPA_SIM VDPA_SIM_BLOCK VDPA_SIM_NET VDPA_USER VETH VFIO VFIO_PCI VFIO_PCI_CORE VFIO_PCI_INTX VFIO_PCI_MMAP VFIO_VIRQFD VGASTATE VHOST VHOST_CROSS_ENDIAN_LEGACY VHOST_IOTLB VHOST_NET VHOST_RING VHOST_TASK VHOST_VDPA VHOST_VSOCK VIDEOBUF2_CORE VIDEOBUF2_DMA_CONTIG VIDEOBUF2_DMA_SG VIDEOBUF2_MEMOPS VIDEOBUF2_V4L2 VIDEOBUF2_VMALLOC VIDEOMODE_HELPERS VIDEO_AU0828 VIDEO_AU0828_RC VIDEO_AU0828_V4L2 VIDEO_CMDLINE VIDEO_CS53L32A VIDEO_CX231XX VIDEO_CX231XX_ALSA VIDEO_CX231XX_DVB VIDEO_CX231XX_RC VIDEO_CX2341X VIDEO_CX25840 VIDEO_DEV VIDEO_EM28XX VIDEO_EM28XX_ALSA VIDEO_EM28XX_DVB VIDEO_EM28XX_RC VIDEO_EM28XX_V4L2 VIDEO_GO7007 VIDEO_GO7007_LOADER VIDEO_GO7007_USB VIDEO_GO7007_USB_S2250_BOARD VIDEO_HDPVR VIDEO_MSP3400 VIDEO_NOMODESET VIDEO_PVRUSB2 VIDEO_PVRUSB2_DVB VIDEO_PVRUSB2_SYSFS VIDEO_SAA711X VIDEO_STK1160 VIDEO_TUNER VIDEO_TVEEPROM VIDEO_USBTV VIDEO_V4L2_I2C VIDEO_V4L2_SUBDEV_API VIDEO_V4L2_TPG VIDEO_VICODEC VIDEO_VIM2M VIDEO_VIMC VIDEO_VIVID VIDEO_VIVID_CEC VIDEO_WM8775 VIPERBOARD_ADC VIRTIO_BALLOON VIRTIO_DMA_SHARED_BUFFER VIRTIO_MEM VIRTIO_MMIO VIRTIO_MMIO_CMDLINE_DEVICES VIRTIO_PMEM VIRTIO_VDPA VIRTIO_VSOCKETS VIRTIO_VSOCKETS_COMMON VIRT_WIFI VLAN_8021Q VLAN_8021Q_GVRP VLAN_8021Q_MVRP VMAP_PFN VMWARE_VMCI VMXNET3 VP_VDPA VSOCKETS VSOCKETS_DIAG VSOCKETS_LOOPBACK VSOCKMON VT_HW_CONSOLE_BINDING VXFS_FS WANT_DEV_COREDUMP WEXT_CORE WEXT_PRIV WEXT_PROC WIREGUARD WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_PURELIFI WLAN_VENDOR_SILABS X86_SGX X86_SGX_KVM X86_X2APIC X86_X32_ABI 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 XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZBUD ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZBUD] disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing release v6.4 testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f1cfdbd925838069c58cf4931162b2a88d476499ccaf7cf9abd1607ff76df6d7 all runs: OK false negative chance: 0.000 # git bisect start 950fe35831af0c1f9d87d4105843c3b7f1fbf09b 6995e2de6891c724bfeb2db33d7b87775f913ad1 Bisecting: 8119 revisions left to test after this (roughly 13 steps) [b775d6c5859affe00527cbe74263de05cfe6b9f9] Merge tag 'mips_6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux testing commit b775d6c5859affe00527cbe74263de05cfe6b9f9 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3057bd78493c68381fc92c21b4b9c284b8d02c24bb7858c895fc67c5bda93067 all runs: OK false negative chance: 0.000 # git bisect good b775d6c5859affe00527cbe74263de05cfe6b9f9 Bisecting: 4089 revisions left to test after this (roughly 12 steps) [406fb9eb198a05fa61c31ec8a6e667c8440749c8] Merge tag 'firewire-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394 testing commit 406fb9eb198a05fa61c31ec8a6e667c8440749c8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e507437eaac3c975b927681ec893030548647a0325bcee5e8833b3d2a953f5b7 all runs: OK false negative chance: 0.000 # git bisect good 406fb9eb198a05fa61c31ec8a6e667c8440749c8 Bisecting: 2045 revisions left to test after this (roughly 11 steps) [7f03a56314be00f0ecfa3ef27559d6cfa6ba0429] wifi: mt76: mt7915: move mib_stats structure in mt76.h testing commit 7f03a56314be00f0ecfa3ef27559d6cfa6ba0429 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d41ff11a9b75e06f092a2d336d15ff246dbfb9db815baa9e4f50ee13433cf49d all runs: OK false negative chance: 0.000 # git bisect good 7f03a56314be00f0ecfa3ef27559d6cfa6ba0429 Bisecting: 1018 revisions left to test after this (roughly 10 steps) [25aa0bebba72b318e71fe205bfd1236550cc9534] Merge tag 'net-6.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit 25aa0bebba72b318e71fe205bfd1236550cc9534 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e1e0449bd0b534535412df571582c3314a1acc5969fe08f19a59396a81bb64dd all runs: OK false negative chance: 0.000 # git bisect good 25aa0bebba72b318e71fe205bfd1236550cc9534 Bisecting: 571 revisions left to test after this (roughly 9 steps) [90cd5467d18844f1806eefa7318227841d2cd95a] Merge branch 'tcp-disable-header-prediction-for-md5' testing commit 90cd5467d18844f1806eefa7318227841d2cd95a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 65b35cc129057683c6759c4258b3d23b89c1341bf872296914e3df01ae25d50e all runs: OK false negative chance: 0.000 # git bisect good 90cd5467d18844f1806eefa7318227841d2cd95a Bisecting: 285 revisions left to test after this (roughly 8 steps) [6e0ec800c1740372a6bbada0d98e78c2e69ba4a8] net/sched: taprio: delete misleading comment about preallocating child qdiscs testing commit 6e0ec800c1740372a6bbada0d98e78c2e69ba4a8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 77a218e9a18761d6dab069310afd4abb655bda4051af73a2da0901e9ea6f83fb all runs: OK false negative chance: 0.000 # git bisect good 6e0ec800c1740372a6bbada0d98e78c2e69ba4a8 Bisecting: 152 revisions left to test after this (roughly 7 steps) [b5793de3cfaefef34a1fc9305c9fe3dbcd0ac792] Bluetooth: hci_conn: avoid checking uninitialized CIG/CIS ids testing commit b5793de3cfaefef34a1fc9305c9fe3dbcd0ac792 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c9f2bfd756bcdde184c6b71388942e32d9c2562238cc9d241a6f4c12ecc4f71e all runs: OK false negative chance: 0.000 # git bisect good b5793de3cfaefef34a1fc9305c9fe3dbcd0ac792 Bisecting: 76 revisions left to test after this (roughly 6 steps) [53b836a44db4259b94ffcfff321fb3d63f976b76] net/mlx5e: Add recovery flow for tx devlink health reporter for unhealthy PTP SQ testing commit 53b836a44db4259b94ffcfff321fb3d63f976b76 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8177d83bc735345b7fbb319330c6db2e077937eb2571ceae682a31cb1319d91f all runs: OK false negative chance: 0.000 # git bisect good 53b836a44db4259b94ffcfff321fb3d63f976b76 Bisecting: 38 revisions left to test after this (roughly 5 steps) [ccd06f502b91a78e45149efc70cb9b91f3bf3c68] Merge tag 'mlx5-updates-2023-08-14' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux testing commit ccd06f502b91a78e45149efc70cb9b91f3bf3c68 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7c59a59e12a40ad8630211df130aada6a880ac183a392ccedd8ce3fbaf3dbda9 all runs: crashed: WARNING in dev_index_reserve representative crash: WARNING in dev_index_reserve, types: [WARNING] # git bisect bad ccd06f502b91a78e45149efc70cb9b91f3bf3c68 Bisecting: 18 revisions left to test after this (roughly 4 steps) [c66937b0f8dbb4c6c043663c702b1053fb47fab2] net: phy: mediatek-ge-soc: support PHY LEDs testing commit c66937b0f8dbb4c6c043663c702b1053fb47fab2 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e81397b90d621d3ca8cd10ff0b44c2a7eaed0a0878be973f9973911c5f9fdde4 all runs: OK false negative chance: 0.000 # git bisect good c66937b0f8dbb4c6c043663c702b1053fb47fab2 Bisecting: 9 revisions left to test after this (roughly 3 steps) [0b4eb603d635ca47c1c372f69b4b96672e4c2c05] net/mlx5: Remove unused CAPs testing commit 0b4eb603d635ca47c1c372f69b4b96672e4c2c05 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2ee647ee8ec675270e2422dfaed0c1d3164289c034e6c6fb9820323c33683039 all runs: OK false negative chance: 0.000 # git bisect good 0b4eb603d635ca47c1c372f69b4b96672e4c2c05 Bisecting: 4 revisions left to test after this (roughly 2 steps) [ded67d90815a412f327051d27eb6c6de57cd2c03] netlink: specs: add ovs_vport new command testing commit ded67d90815a412f327051d27eb6c6de57cd2c03 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7cf84a5f22d8c74f74c6ac4322538cb7219a3685f22ffc8be7cd992705351e6f all runs: crashed: WARNING in dev_index_reserve representative crash: WARNING in dev_index_reserve, types: [WARNING] # git bisect bad ded67d90815a412f327051d27eb6c6de57cd2c03 Bisecting: 2 revisions left to test after this (roughly 1 step) [3bfdcc324a04ba27f3fd2a6633c53de1758e7b6a] net: e1000e: Remove unused declarations testing commit 3bfdcc324a04ba27f3fd2a6633c53de1758e7b6a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a965f794d17b248860616bf77fa8e9e8aca48312ccdb71a2d84299aee0acb6fb all runs: OK false negative chance: 0.000 # git bisect good 3bfdcc324a04ba27f3fd2a6633c53de1758e7b6a Bisecting: 0 revisions left to test after this (roughly 1 step) [956db0a13b47df7f3d6d624394e602e8bf9b057e] net: warn about attempts to register negative ifindex testing commit 956db0a13b47df7f3d6d624394e602e8bf9b057e gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c88158f241b2f1bf05101bd5d108f629b1d18043efd48a1e8840b3e3bcfcb3f0 all runs: crashed: WARNING in dev_index_reserve representative crash: WARNING in dev_index_reserve, types: [WARNING] # git bisect bad 956db0a13b47df7f3d6d624394e602e8bf9b057e Bisecting: 0 revisions left to test after this (roughly 0 steps) [cf74eb5a5bc867258e7d0b0d1c3c4a60e1e3de2f] eth: r8152: try to use a normal budget testing commit cf74eb5a5bc867258e7d0b0d1c3c4a60e1e3de2f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1ad1e44f58fbf7c2f6ef3c08c1f78a1b192dae043f2e6ced72b1a001a9b84768 all runs: OK false negative chance: 0.000 # git bisect good cf74eb5a5bc867258e7d0b0d1c3c4a60e1e3de2f 956db0a13b47df7f3d6d624394e602e8bf9b057e is the first bad commit commit 956db0a13b47df7f3d6d624394e602e8bf9b057e Author: Jakub Kicinski Date: Mon Aug 14 13:56:25 2023 -0700 net: warn about attempts to register negative ifindex Since the xarray changes we mix returning valid ifindex and negative errno in a single int returned from dev_index_reserve(). This depends on the fact that ifindexes can't be negative. Otherwise we may insert into the xarray and return a very large negative value. This in turn may break ERR_PTR(). OvS is susceptible to this problem and lacking validation (fix posted separately for net). Reject negative ifindex explicitly. Add a warning because the input validation is better handled by the caller. Reviewed-by: Leon Romanovsky Link: https://lore.kernel.org/r/20230814205627.2914583-2-kuba@kernel.org Signed-off-by: Jakub Kicinski net/core/dev.c | 5 +++++ 1 file changed, 5 insertions(+) accumulated error probability: 0.00 culprit signature: c88158f241b2f1bf05101bd5d108f629b1d18043efd48a1e8840b3e3bcfcb3f0 parent signature: 1ad1e44f58fbf7c2f6ef3c08c1f78a1b192dae043f2e6ced72b1a001a9b84768 revisions tested: 23, total time: 6h11m41.488610418s (build: 3h10m57.035469009s, test: 2h43m56.365529712s) first bad commit: 956db0a13b47df7f3d6d624394e602e8bf9b057e net: warn about attempts to register negative ifindex recipients (to): ["kuba@kernel.org" "leonro@nvidia.com"] recipients (cc): [] crash: WARNING in dev_index_reserve netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 2795 at net/core/dev.c:9593 dev_index_reserve+0xbd/0xd0 include/linux/xarray.h:968 Modules linked in: CPU: 0 PID: 2795 Comm: syz-executor.0 Not tainted 6.5.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 RIP: 0010:dev_index_reserve+0xbd/0xd0 net/core/dev.c:9593 Code: 89 ef 41 b9 c0 0c 00 00 31 d2 4d 8d 44 24 50 b9 ff ff ff 7f 48 8d 74 24 04 e8 1f e0 30 00 48 89 ef 89 c3 e8 65 c6 32 00 eb a1 <0f> 0b bb ea ff ff ff eb a0 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e RSP: 0018:ffffc90000e3b698 EFLAGS: 00010286 RAX: 000061164fdd11e9 RBX: ffff888118db1000 RCX: ffffc90000e3b5d4 RDX: 0000000000000002 RSI: 00000000ffffffff RDI: ffff8881165c0000 RBP: 0000000000000000 R08: 0000000000000800 R09: ffff888112fc2558 R10: ffffc90000e3b680 R11: 0000000000000001 R12: ffff8881165c0000 R13: ffff8881165c0000 R14: ffff888118db2000 R15: ffff8881165c014c FS: 00007f2a138ca6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c070298cf8 CR3: 0000000118f3d000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: register_netdevice+0x1d2/0x660 net/core/dev.c:10081 veth_newlink+0x22d/0x4b0 drivers/net/veth.c:1938 rtnl_newlink_create net/core/rtnetlink.c:3471 [inline] __rtnl_newlink+0x793/0x9d0 net/core/rtnetlink.c:3688 rtnl_newlink+0x42/0x60 net/core/rtnetlink.c:3701 rtnetlink_rcv_msg+0x186/0x440 net/core/rtnetlink.c:6427 netlink_rcv_skb+0x53/0x100 net/netlink/af_netlink.c:2545 netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline] netlink_unicast+0x193/0x270 net/netlink/af_netlink.c:1368 netlink_sendmsg+0x243/0x4c0 net/netlink/af_netlink.c:1910 sock_sendmsg_nosec net/socket.c:728 [inline] sock_sendmsg+0x37/0x70 net/socket.c:751 ____sys_sendmsg+0x26f/0x2e0 net/socket.c:2514 ___sys_sendmsg+0x95/0xe0 net/socket.c:2568 __sys_sendmsg+0x75/0xc0 net/socket.c:2597 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f2a13d47ae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2a138ca0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f2a13e66f80 RCX: 00007f2a13d47ae9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 00007f2a13d9347a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f2a13e66f80 R15: 00007ffd887dcc48