ci starts bisection 2024-02-28 04:15:30.005410358 +0000 UTC m=+47.365282365 bisecting cause commit starting from f8cbf6bde4c8d5d32330bcceafa7b139fec89f97 building syzkaller on 05e69c83495c941039dffc1f3688a34c9db69a56 ensuring issue is reproducible on original commit f8cbf6bde4c8d5d32330bcceafa7b139fec89f97 testing commit f8cbf6bde4c8d5d32330bcceafa7b139fec89f97 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3e7dff9116e5091f8bfb4eac5bb76b50c8725876b6e8e46135f8117ba1bbd887 all runs: crashed: WARNING: suspicious RCU usage in in6_dump_addrs representative crash: WARNING: suspicious RCU usage in in6_dump_addrs, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit f8cbf6bde4c8d5d32330bcceafa7b139fec89f97 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 334375580bc159f5bb3964c51e526f856a007feaf15b99d2ffcc54e3a6a22a8a all runs: crashed: WARNING: suspicious RCU usage in in6_dump_addrs representative crash: WARNING: suspicious RCU usage in in6_dump_addrs, types: [LOCKDEP] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed kconfig minimization: base=3937 full=7970 leaves diff=2020 split chunks (needed=false): <2020> split chunk #0 of len 2020 into 5 parts testing without sub-chunk 1/5 disabling configs for [LEAK UBSAN BUG KASAN ATOMIC_SLEEP HANG], they are not needed testing commit f8cbf6bde4c8d5d32330bcceafa7b139fec89f97 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8f65d840b6f28b68b560872687a00f601b142fb9bf22ae2d3adef4eae728d7a8 all runs: crashed: WARNING: suspicious RCU usage in in6_dump_addrs representative crash: WARNING: suspicious RCU usage in in6_dump_addrs, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [BUG KASAN ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit f8cbf6bde4c8d5d32330bcceafa7b139fec89f97 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 78edcecca31cba36ad4c9faa2a19ed16c70ee5540d505757941e322e834a8c41 all runs: crashed: WARNING: suspicious RCU usage in in6_dump_addrs representative crash: WARNING: suspicious RCU usage in in6_dump_addrs, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit f8cbf6bde4c8d5d32330bcceafa7b139fec89f97 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7b50d486a10e6975cde7006a2a96dd9dc33c5ab125f21ff740c65720d6655618 all runs: crashed: WARNING: suspicious RCU usage in in6_dump_addrs representative crash: WARNING: suspicious RCU usage in in6_dump_addrs, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit f8cbf6bde4c8d5d32330bcceafa7b139fec89f97 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 493567ee5a0345850271b88c15c2fa940921bb4f6b1aed2105844e52b71acb44 all runs: crashed: WARNING: suspicious RCU usage in in6_dump_addrs representative crash: WARNING: suspicious RCU usage in in6_dump_addrs, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [BUG KASAN ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit f8cbf6bde4c8d5d32330bcceafa7b139fec89f97 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9ac5e8e5d4a10f3513dfdac05cd6a740daa511ad6b0880e21bb3e5463a8e8141 all runs: OK false negative chance: 0.000 minimized to 404 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_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_CONFIGFS_F_FS 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_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_DEVICE_CDEV 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_USER_SHADOW_STACK X86_X2APIC X86_X32_ABI 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 ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_DEFAULT_ON ZSWAP_SHRINKER_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZSMALLOC] disabling configs for [LEAK UBSAN BUG KASAN ATOMIC_SLEEP HANG], they are not needed picked [v6.7 v6.6 v6.5 v6.3 v6.1 v5.19 v5.17 v5.15 v5.12 v5.9 v5.6 v5.3 v5.0 v4.19] out of 30 release tags testing release v6.7 testing commit 0dd3ee31125508cd67f7e7172247f05b7fd1753a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: de68d39a821607c224be38879127a0d406deb05567b727b354ebf0b0bdf20ed0 all runs: OK false negative chance: 0.000 # git bisect start f8cbf6bde4c8d5d32330bcceafa7b139fec89f97 0dd3ee31125508cd67f7e7172247f05b7fd1753a Bisecting: 7692 revisions left to test after this (roughly 13 steps) [cf65598d5909acf5e7b7dc9e21786e386356bc81] Merge tag 'drm-next-2024-01-10' of git://anongit.freedesktop.org/drm/drm testing commit cf65598d5909acf5e7b7dc9e21786e386356bc81 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 200524c5aff1e2a6ad780b39b3100fb4a8a7dcab0cfc0e889990189f21203a43 all runs: OK false negative chance: 0.000 # git bisect good cf65598d5909acf5e7b7dc9e21786e386356bc81 Bisecting: 3829 revisions left to test after this (roughly 12 steps) [ab1e2d0fccc570c950fd939840ebc8efa3bd39b8] Merge tag 'for-v6.8-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply testing commit ab1e2d0fccc570c950fd939840ebc8efa3bd39b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7e36fb25df2648815409c1a23c5afb11707fdc26f283ea92db5be69a208e154d all runs: OK false negative chance: 0.000 # git bisect good ab1e2d0fccc570c950fd939840ebc8efa3bd39b8 Bisecting: 1869 revisions left to test after this (roughly 11 steps) [4f5e5092fdbf5cec6bedc19fbe69cce4f5f08372] Merge tag 'net-6.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit 4f5e5092fdbf5cec6bedc19fbe69cce4f5f08372 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f01a96ead9678b497e2dcb5ea6d8f21346b0dcf70cfa11bc3a6cb891af66bfa4 all runs: OK false negative chance: 0.000 # git bisect good 4f5e5092fdbf5cec6bedc19fbe69cce4f5f08372 Bisecting: 950 revisions left to test after this (roughly 10 steps) [26f4dac11775a1ca24e2605cb30e828d4dbdea93] netfilter: x_tables: Use unsafe_memcpy() for 0-sized destination testing commit 26f4dac11775a1ca24e2605cb30e828d4dbdea93 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dfa680a8a5ef95db20ab2bb7a0fc797486227add4159aec8889586e03806ed0f all runs: OK false negative chance: 0.000 # git bisect good 26f4dac11775a1ca24e2605cb30e828d4dbdea93 Bisecting: 483 revisions left to test after this (roughly 9 steps) [1c33f0ffacfd22dd748d69199d0575bcc461684e] Merge tag 'ath-next-20240222' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath testing commit 1c33f0ffacfd22dd748d69199d0575bcc461684e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5a85938e3fa87753b3cdff888c9dfdd8611f467ab3cb2df4818bb89566442c9a all runs: OK false negative chance: 0.000 # git bisect good 1c33f0ffacfd22dd748d69199d0575bcc461684e Bisecting: 241 revisions left to test after this (roughly 8 steps) [7cb7c32d60ad2dea48b7ac2845d86f10b0be089e] Merge tag 'irq_urgent_for_v6.8_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 7cb7c32d60ad2dea48b7ac2845d86f10b0be089e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0e3c1da37e164ff8db0e55e6a9e52fb969b48ebfd9cec9150cf581811eaa6a97 all runs: OK false negative chance: 0.000 # git bisect good 7cb7c32d60ad2dea48b7ac2845d86f10b0be089e Bisecting: 117 revisions left to test after this (roughly 7 steps) [6714ebb922ab15a209dfc3c1ed29d4bb0abc9f02] Merge tag 'net-6.8.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit 6714ebb922ab15a209dfc3c1ed29d4bb0abc9f02 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9c499287386da24708b0ef224a343a395fc44bb9527dd1314f804798e3e58128 all runs: OK false negative chance: 0.000 # git bisect good 6714ebb922ab15a209dfc3c1ed29d4bb0abc9f02 Bisecting: 58 revisions left to test after this (roughly 6 steps) [23fe265fbfbc0ae43fc862edb8e29ca16e5fa4d7] rocker: Don't bother filling in ethtool driver version testing commit 23fe265fbfbc0ae43fc862edb8e29ca16e5fa4d7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bc730048444619d817d310e1349047dfee06d37ff255300601aba28a60b2ab3a all runs: OK false negative chance: 0.000 # git bisect good 23fe265fbfbc0ae43fc862edb8e29ca16e5fa4d7 Bisecting: 29 revisions left to test after this (roughly 5 steps) [0ffc3292c02b7f16dd23d841b8c4766c48edfdc7] net: pcs: xpcs: Drop sentinel entry from 2500basex ifaces list testing commit 0ffc3292c02b7f16dd23d841b8c4766c48edfdc7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ab512d50c391295f8021bced3db7033f4f7e0cfb57c16fb3882a15c08bc4293c all runs: OK false negative chance: 0.000 # git bisect good 0ffc3292c02b7f16dd23d841b8c4766c48edfdc7 Bisecting: 14 revisions left to test after this (roughly 4 steps) [8c6f6b4bb53a904f922dfb90d566391d3feee32c] selftests: mptcp: join: change capture/checksum as bool testing commit 8c6f6b4bb53a904f922dfb90d566391d3feee32c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6df09fe95509794a07403efe14843ea86385c41adec7b0a4dc18e4d3a9545319 all runs: crashed: WARNING: suspicious RCU usage in in6_dump_addrs representative crash: WARNING: suspicious RCU usage in in6_dump_addrs, types: [LOCKDEP] # git bisect bad 8c6f6b4bb53a904f922dfb90d566391d3feee32c Bisecting: 7 revisions left to test after this (roughly 3 steps) [5c237967e632c81db0504cffa26eaa19e7940650] dt-bindings: net: cdns,macb: add sam9x7 ethernet interface testing commit 5c237967e632c81db0504cffa26eaa19e7940650 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ed047ed622335c607533e02e20c239a1816b49c1598c112e9ddd4316961272e9 all runs: OK false negative chance: 0.000 # git bisect good 5c237967e632c81db0504cffa26eaa19e7940650 Bisecting: 3 revisions left to test after this (roughly 2 steps) [dcc03f270d1e2f4b9715537d8deb734bd019e187] mptcp: check the protocol in tcp_sk() with DEBUG_NET testing commit dcc03f270d1e2f4b9715537d8deb734bd019e187 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a1b66744854d516768efcf2a51234d377e10e9e6227934bd9b3ef31fa29d8d78 all runs: crashed: WARNING: suspicious RCU usage in in6_dump_addrs representative crash: WARNING: suspicious RCU usage in in6_dump_addrs, types: [LOCKDEP] # git bisect bad dcc03f270d1e2f4b9715537d8deb734bd019e187 Bisecting: 1 revision left to test after this (roughly 1 step) [9da74836740d9c753fb6cd270f7c75c5258836de] selftests: mptcp: lib: catch duplicated subtest entries testing commit 9da74836740d9c753fb6cd270f7c75c5258836de gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b4fab8682ff86414df2b7f0349e393bc2243930d37d3c4c80a82245af3a4d56c all runs: crashed: WARNING: suspicious RCU usage in in6_dump_addrs representative crash: WARNING: suspicious RCU usage in in6_dump_addrs, types: [LOCKDEP] # git bisect bad 9da74836740d9c753fb6cd270f7c75c5258836de Bisecting: 0 revisions left to test after this (roughly 0 steps) [c3718936ec47ae811a7ce9a618b6cb1cda835bab] ipv6: anycast: complete RCU handling of struct ifacaddr6 testing commit c3718936ec47ae811a7ce9a618b6cb1cda835bab gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1f0f328003c04574aed46b9143b431b51c2b55dfeaa46dab2ea63e1cbb8ed8a2 all runs: crashed: WARNING: suspicious RCU usage in in6_dump_addrs representative crash: WARNING: suspicious RCU usage in in6_dump_addrs, types: [LOCKDEP] # git bisect bad c3718936ec47ae811a7ce9a618b6cb1cda835bab c3718936ec47ae811a7ce9a618b6cb1cda835bab is the first bad commit commit c3718936ec47ae811a7ce9a618b6cb1cda835bab Author: Eric Dumazet Date: Fri Feb 23 20:10:54 2024 +0000 ipv6: anycast: complete RCU handling of struct ifacaddr6 struct ifacaddr6 are already freed after RCU grace period. Add __rcu qualifier to aca_next pointer, and idev->ac_list Add relevant rcu_assign_pointer() and dereference accessors. ipv6_chk_acast_dev() no longer needs to acquire idev->lock. /proc/net/anycast6 is now purely RCU protected, it no longer acquires idev->lock. Similarly in6_dump_addrs() can use RCU protection to iterate through anycast addresses. It was relying on a mixture of RCU and RTNL but next patches will get rid of RTNL there. Signed-off-by: Eric Dumazet Reviewed-by: Jiri Pirko Link: https://lore.kernel.org/r/20240223201054.220534-1-edumazet@google.com Signed-off-by: Jakub Kicinski include/net/if_inet6.h | 4 ++-- net/ipv6/addrconf.c | 4 ++-- net/ipv6/anycast.c | 61 +++++++++++++++++++------------------------------- 3 files changed, 27 insertions(+), 42 deletions(-) accumulated error probability: 0.00 culprit signature: 1f0f328003c04574aed46b9143b431b51c2b55dfeaa46dab2ea63e1cbb8ed8a2 parent signature: ed047ed622335c607533e02e20c239a1816b49c1598c112e9ddd4316961272e9 revisions tested: 22, total time: 7h3m24.154279739s (build: 3h6m24.103431406s, test: 2h37m30.978550477s) first bad commit: c3718936ec47ae811a7ce9a618b6cb1cda835bab ipv6: anycast: complete RCU handling of struct ifacaddr6 recipients (to): ["edumazet@google.com" "jiri@nvidia.com" "kuba@kernel.org"] recipients (cc): [] crash: WARNING: suspicious RCU usage in in6_dump_addrs ============================= WARNING: suspicious RCU usage 6.8.0-rc5-syzkaller #0 Not tainted ----------------------------- net/ipv6/addrconf.c:5317 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 3 locks held by syz-executor.0/2802: #0: ffff8881125e2670 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}, at: __netlink_dump_start+0x76/0x2d0 net/netlink/af_netlink.c:2340 #1: ffffffff835045f8 (rtnl_mutex){+.+.}-{3:3}, at: netlink_dump+0x1af/0x380 net/netlink/af_netlink.c:2267 #2: ffff888112f4d580 (&ndev->lock){++..}-{2:2}, at: in6_dump_addrs+0x3c/0x720 net/ipv6/addrconf.c:5279 stack backtrace: CPU: 0 PID: 2802 Comm: syz-executor.0 Not tainted 6.8.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x8d/0xe0 lib/dump_stack.c:106 lockdep_rcu_suspicious+0x15d/0x1b0 kernel/locking/lockdep.c:6712 in6_dump_addrs+0x715/0x720 net/ipv6/addrconf.c:5317 inet6_dump_addr+0x61d/0x690 net/ipv6/addrconf.c:5428 netlink_dump+0x1bf/0x380 net/netlink/af_netlink.c:2268 __netlink_dump_start+0x25b/0x2d0 net/netlink/af_netlink.c:2376 netlink_dump_start include/linux/netlink.h:340 [inline] rtnetlink_rcv_msg+0x64a/0x690 net/core/rtnetlink.c:6555 netlink_rcv_skb+0xe0/0x110 net/netlink/af_netlink.c:2549 netlink_unicast_kernel net/netlink/af_netlink.c:1337 [inline] netlink_unicast+0x245/0x330 net/netlink/af_netlink.c:1363 netlink_sendmsg+0x3ad/0x450 net/netlink/af_netlink.c:1904 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x8e/0xb0 net/socket.c:745 ____sys_sendmsg+0x1a7/0x200 net/socket.c:2584 ___sys_sendmsg+0x28f/0x2d0 net/socket.c:2638 __sys_sendmsg net/socket.c:2667 [inline] __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg+0xf7/0x140 net/socket.c:2674 do_syscall_64+0xa7/0x1c0 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f66b2eb4da9 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:00007f66b2a360c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f66b2fe2f80 RCX: 00007f66b2eb4da9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 00007f66b2f0147a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f66b2fe2f80 R15: 00007ffea91435d8