ci starts bisection 2025-08-20 04:52:16.511424183 +0000 UTC m=+26496.812960977 bisecting cause commit starting from 99bade344cfa1577c6dd658e10a3d64b119bddf4 building syzkaller on 1804e95e3ff848c11e87e8efe7560f03c011c081 ensuring issue is reproducible on original commit 99bade344cfa1577c6dd658e10a3d64b119bddf4 testing commit 99bade344cfa1577c6dd658e10a3d64b119bddf4 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: f897227b28f31cc92425587b320f64e3796a774d62ae92f51abc5399ef85dd9c all runs: crashed: UBSAN: shift-out-of-bounds in ax88772_bind representative crash: UBSAN: shift-out-of-bounds in ax88772_bind, types: [UBSAN] check whether we can drop unnecessary instrumentation disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak], they are not needed testing commit 99bade344cfa1577c6dd658e10a3d64b119bddf4 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 5552729b22ffacfe5ed0a1e747034038d4d92ee4849a285f97a6f03208faf89a all runs: crashed: UBSAN: shift-out-of-bounds in ax88772_bind representative crash: UBSAN: shift-out-of-bounds in ax88772_bind, types: [UBSAN] the bug reproduces without the instrumentation disabling configs for [hang memleak bug_or_warning kasan locking atomic_sleep], they are not needed kconfig minimization: base=4099 full=8509 leaves diff=2193 split chunks (needed=false): <2193> split chunk #0 of len 2193 into 5 parts testing without sub-chunk 1/5 disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak], they are not needed testing commit 99bade344cfa1577c6dd658e10a3d64b119bddf4 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 30cbd1d096fd9e2b14b8a5004fe4678bde36b56f375341889aea29ed2c173831 all runs: crashed: UBSAN: shift-out-of-bounds in ax88772_bind representative crash: UBSAN: shift-out-of-bounds in ax88772_bind, types: [UBSAN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [locking atomic_sleep hang memleak bug_or_warning kasan], they are not needed testing commit 99bade344cfa1577c6dd658e10a3d64b119bddf4 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: d29777858df0a1cca60643bca7fb627b68117444b6e0a8b331bd6b2e2918a733 all runs: crashed: UBSAN: shift-out-of-bounds in ax88772_bind representative crash: UBSAN: shift-out-of-bounds in ax88772_bind, types: [UBSAN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [kasan locking atomic_sleep hang memleak bug_or_warning], they are not needed testing commit 99bade344cfa1577c6dd658e10a3d64b119bddf4 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: d0d72c1498739c6f1e2b27c561f47e599429200f9f35d3674fd29f6d64188e29 all runs: crashed: UBSAN: shift-out-of-bounds in ax88772_bind representative crash: UBSAN: shift-out-of-bounds in ax88772_bind, types: [UBSAN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [locking atomic_sleep hang memleak bug_or_warning kasan], they are not needed testing commit 99bade344cfa1577c6dd658e10a3d64b119bddf4 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 378bd983e1119901ee93295e327e618410f0ce59d20480154bf339d257c591eb all runs: crashed: UBSAN: shift-out-of-bounds in ax88772_bind representative crash: UBSAN: shift-out-of-bounds in ax88772_bind, types: [UBSAN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [hang memleak bug_or_warning kasan locking atomic_sleep], they are not needed testing commit 99bade344cfa1577c6dd658e10a3d64b119bddf4 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 9dd2ea984ef65f142176ca62bb2626fe411611c7c70c2c4c02f982946044bb98 all runs: OK false negative chance: 0.000 minimized to 437 configs; suspects: [ARCH_ENABLE_MEMORY_HOTREMOVE ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CMA COMMON_CLK CONTIG_ALLOC DVB_CORE EXTCON 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 NOP_USB_XCEIV PARPORT PCCARD PCMCIA PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RC_CORE RFKILL SND SOUND SPI SSB TAP TARGET_CORE TUN USBPCWATCHDOG USB_ACM USB_ADUTUX USB_AIRSPY USB_ALI_M5632 USB_AMD5536UDC USB_AN2720 USB_APPLEDISPLAY USB_ARMLINUX USB_ATM 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_HOST USB_CDNS_SUPPORT USB_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_GENERIC USB_CHIPIDEA_HOST USB_CHIPIDEA_MSM USB_CHIPIDEA_NPCM USB_CHIPIDEA_PCI USB_CHIPIDEA_UDC 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_MIDI2 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_CONN_GPIO 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_HAPS USB_DWC3_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI 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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_LGM_PHY USB_LIBCOMPOSITE USB_LINK_LAYER_TEST USB_M5602 USB_MA901 USB_MAX3420_UDC USB_MAX3421_HCD USB_MDC800 USB_MICROTEK USB_MR800 USB_MSI2500 USB_MUSB_DUAL_ROLE USB_MUSB_HDRC USB_NET2280 USB_NET_AQC111 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_PCI_RENESAS USB_XHCI_PLATFORM USB_XUSBATM USB_YUREX USERFAULTFD USERIO USER_RETURN_NOTIFIER UVC_COMMON U_SERIAL_CONSOLE V4L2_ASYNC V4L2_FWNODE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VDPA_SIM VDPA_SIM_BLOCK VDPA_SIM_NET VETH VFIO VFIO_DEVICE_CDEV VFIO_PCI VFIO_PCI_CORE VFIO_PCI_INTX VFIO_VIRQFD VGASTATE VHOST VHOST_CROSS_ENDIAN_LEGACY VHOST_ENABLE_FORK_OWNER_CONTROL VHOST_IOTLB VHOST_NET VHOST_RING VHOST_TASK VHOST_VDPA VHOST_VSOCK VIDEO 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_CAMERA_LENS 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_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_PROC WIREGUARD WIRELESS WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_SILABS X86_SGX X86_SGX_KVM X86_USER_SHADOW_STACK 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 XILLYBUS_CLASS XILLYUSB XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZPOOL ZRAM ZRAM_BACKEND_FORCE_LZO ZRAM_BACKEND_LZO ZRAM_DEF_COMP_LZO ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_842 ZSWAP_DEFAULT_ON ZSWAP_SHRINKER_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZSMALLOC] disabling configs for [hang memleak bug_or_warning kasan locking atomic_sleep], they are not needed picked [v6.16 v6.15 v6.14 v6.12 v6.10 v6.8 v6.6 v6.4 v6.1 v5.18 v5.15 v5.12 v5.9 v5.6 v5.3 v5.0 v4.19] out of 39 release tags testing release v6.16 testing commit 038d61fd642278bab63ee8ef722c50d10ab01e8f gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: d1c934066c3140a6cfc979fccd93934d89e0c609293ef320c6a165f2d225524b all runs: OK false negative chance: 0.000 # git bisect start 99bade344cfa1577c6dd658e10a3d64b119bddf4 038d61fd642278bab63ee8ef722c50d10ab01e8f Bisecting: 6151 revisions left to test after this (roughly 13 steps) [8be4d31cb8aaeea27bde4b7ddb26e28a89062ebf] Merge tag 'net-next-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next testing commit 8be4d31cb8aaeea27bde4b7ddb26e28a89062ebf gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 7894dbb6023f09e0b056cad09b7f4f0d94875425818bbe118d6ee0ea660d4816 all runs: OK false negative chance: 0.000 # git bisect good 8be4d31cb8aaeea27bde4b7ddb26e28a89062ebf Bisecting: 3197 revisions left to test after this (roughly 12 steps) [27152608dab9afe748d6b5fc3437a1831dac77c7] Merge tag 'libnvdimm-for-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm testing commit 27152608dab9afe748d6b5fc3437a1831dac77c7 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 409199077f48e2045fdc4f75a5649a2ea025b06e3fd79037ba04edefe3858fe2 all runs: OK false negative chance: 0.000 # git bisect good 27152608dab9afe748d6b5fc3437a1831dac77c7 Bisecting: 1603 revisions left to test after this (roughly 11 steps) [d41e5839d80043beaa63973eab602579ebdb238f] Merge tag 'cxl-for-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl testing commit d41e5839d80043beaa63973eab602579ebdb238f gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: c6ea8c9a0dad57141289aa7ba79ff9ef49d7ffcc1c701f08498735ff45a8e6c1 all runs: OK false negative chance: 0.000 # git bisect good d41e5839d80043beaa63973eab602579ebdb238f Bisecting: 801 revisions left to test after this (roughly 10 steps) [02cbf8e0692bd30717b35a3ff5e46460d1d5d471] irqchip/msi-lib: Fix fwnode refcount in msi_lib_irq_domain_select() testing commit 02cbf8e0692bd30717b35a3ff5e46460d1d5d471 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 7e30d53e7d53cbbd4420a2184b12d3e9412af636d796c846bfd64671191c71d3 all runs: OK false negative chance: 0.000 # git bisect good 02cbf8e0692bd30717b35a3ff5e46460d1d5d471 Bisecting: 400 revisions left to test after this (roughly 9 steps) [ccba9f6baa900e31ad1a4c36e6f3c176694f9eac] net: update NAPI threaded config even for disabled NAPIs testing commit ccba9f6baa900e31ad1a4c36e6f3c176694f9eac gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 76772012d7b82273e5015ece1a38ba77ae31c671a124db39a0123ce0bc422e89 all runs: OK false negative chance: 0.000 # git bisect good ccba9f6baa900e31ad1a4c36e6f3c176694f9eac Bisecting: 202 revisions left to test after this (roughly 8 steps) [acaa21a26f2ffa400aa77423403b357b871dbc28] Merge tag 'x86_urgent_for_v6.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit acaa21a26f2ffa400aa77423403b357b871dbc28 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: e165a16ee32967737a678f90c4a4db0ea951aebb31db9152d8e570fd2aac285b all runs: OK false negative chance: 0.000 # git bisect good acaa21a26f2ffa400aa77423403b357b871dbc28 Bisecting: 102 revisions left to test after this (roughly 7 steps) [24ea63ea387714634813359e2c8e0e6c36952f73] Merge tag 'acpi-6.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm testing commit 24ea63ea387714634813359e2c8e0e6c36952f73 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 6d988f3db91b7b0273689c747638b45c1ac11ceb40a6edc568e6d5f743f29a2c all runs: crashed: UBSAN: shift-out-of-bounds in ax88772_bind representative crash: UBSAN: shift-out-of-bounds in ax88772_bind, types: [UBSAN] # git bisect bad 24ea63ea387714634813359e2c8e0e6c36952f73 Bisecting: 44 revisions left to test after this (roughly 6 steps) [91325f31afc1026de28665cf1a7b6e157fa4d39d] Merge tag 'mm-hotfixes-stable-2025-08-12-20-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm testing commit 91325f31afc1026de28665cf1a7b6e157fa4d39d gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: aeee2cdb3897b139fe9d9d7a9ccee748963f5de258beb5388a92fc6ac0671402 all runs: OK false negative chance: 0.000 # git bisect good 91325f31afc1026de28665cf1a7b6e157fa4d39d Bisecting: 22 revisions left to test after this (roughly 5 steps) [87c6efc5ce9c126ae4a781bc04504b83780e3650] net/sched: ets: use old 'nbands' while purging unused classes testing commit 87c6efc5ce9c126ae4a781bc04504b83780e3650 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 71d85a2bc4e1a83645dc7306b894d04f4ae9cbf4c635ebc0e4e08cdd8f585071 all runs: OK false negative chance: 0.000 # git bisect good 87c6efc5ce9c126ae4a781bc04504b83780e3650 Bisecting: 13 revisions left to test after this (roughly 4 steps) [0cc53520e68bea7fb80fdc6bdf8d226d1b6a98d9] Merge tag 'probes-fixes-v6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace testing commit 0cc53520e68bea7fb80fdc6bdf8d226d1b6a98d9 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: fd743ca7465e744bcbebacda5c1da648744f5f703795cff929e888a5b042c833 all runs: OK false negative chance: 0.000 # git bisect good 0cc53520e68bea7fb80fdc6bdf8d226d1b6a98d9 Bisecting: 8 revisions left to test after this (roughly 3 steps) [63467137ecc0ff6f804d53903ad87a2f0397a18b] Merge tag 'net-6.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit 63467137ecc0ff6f804d53903ad87a2f0397a18b gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 21eb9f992b70ac620979dc15daf66d9b49db3bdf4d94c35dbbe5ec578ef77fac all runs: crashed: UBSAN: shift-out-of-bounds in ax88772_bind representative crash: UBSAN: shift-out-of-bounds in ax88772_bind, types: [UBSAN] # git bisect bad 63467137ecc0ff6f804d53903ad87a2f0397a18b Bisecting: 2 revisions left to test after this (roughly 1 step) [1c756093cdc1fd9973e156f527a08731795d41a2] Merge branch 'ets-use-old-nbands-while-purging-unused-classes' testing commit 1c756093cdc1fd9973e156f527a08731795d41a2 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: c2cd5d9a2d34a57e58627d10e2cd2d26450e00b29960878cdb2f05e3d82c6381 all runs: OK false negative chance: 0.000 # git bisect good 1c756093cdc1fd9973e156f527a08731795d41a2 Bisecting: 0 revisions left to test after this (roughly 1 step) [4faff70959d51078f9ee8372f8cff0d7045e4114] net: usb: asix_devices: add phy_mask for ax88772 mdio bus testing commit 4faff70959d51078f9ee8372f8cff0d7045e4114 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 97c8af2d3b01c9f1bac798a36256f552fd3d0071bcd9c3672221c1aded0cdc69 all runs: crashed: UBSAN: shift-out-of-bounds in ax88772_bind representative crash: UBSAN: shift-out-of-bounds in ax88772_bind, types: [UBSAN] # git bisect bad 4faff70959d51078f9ee8372f8cff0d7045e4114 Bisecting: 0 revisions left to test after this (roughly 0 steps) [52565a935213cd6a8662ddb8efe5b4219343a25d] net: kcm: Fix race condition in kcm_unattach() testing commit 52565a935213cd6a8662ddb8efe5b4219343a25d gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: fec9fc9a7c42f809a2b42d23dd9dd29ea291a63ae611d8387efd14671f8ab85c all runs: OK false negative chance: 0.000 # git bisect good 52565a935213cd6a8662ddb8efe5b4219343a25d 4faff70959d51078f9ee8372f8cff0d7045e4114 is the first bad commit commit 4faff70959d51078f9ee8372f8cff0d7045e4114 Author: Xu Yang Date: Mon Aug 11 17:29:31 2025 +0800 net: usb: asix_devices: add phy_mask for ax88772 mdio bus Without setting phy_mask for ax88772 mdio bus, current driver may create at most 32 mdio phy devices with phy address range from 0x00 ~ 0x1f. DLink DUB-E100 H/W Ver B1 is such a device. However, only one main phy device will bind to net phy driver. This is creating issue during system suspend/resume since phy_polling_mode() in phy_state_machine() will directly deference member of phydev->drv for non-main phy devices. Then NULL pointer dereference issue will occur. Due to only external phy or internal phy is necessary, add phy_mask for ax88772 mdio bus to workarnoud the issue. Closes: https://lore.kernel.org/netdev/20250806082931.3289134-1-xu.yang_2@nxp.com Fixes: e532a096be0e ("net: usb: asix: ax88772: add phylib support") Cc: stable@vger.kernel.org Signed-off-by: Xu Yang Tested-by: Oleksij Rempel Reviewed-by: Oleksij Rempel Link: https://patch.msgid.link/20250811092931.860333-1-xu.yang_2@nxp.com Signed-off-by: Paolo Abeni drivers/net/usb/asix_devices.c | 1 + 1 file changed, 1 insertion(+) accumulated error probability: 0.00 culprit signature: 97c8af2d3b01c9f1bac798a36256f552fd3d0071bcd9c3672221c1aded0cdc69 parent signature: fec9fc9a7c42f809a2b42d23dd9dd29ea291a63ae611d8387efd14671f8ab85c revisions tested: 22, total time: 6h41m28.693291741s (build: 2h40m35.922844052s, test: 2h57m54.097524793s) first bad commit: 4faff70959d51078f9ee8372f8cff0d7045e4114 net: usb: asix_devices: add phy_mask for ax88772 mdio bus recipients (to): ["o.rempel@pengutronix.de" "pabeni@redhat.com" "xu.yang_2@nxp.com"] recipients (cc): [] crash: UBSAN: shift-out-of-bounds in ax88772_bind asix 3-1:0.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 asix 3-1:0.0 (unnamed net_device) (uninitialized): Error reading Medium Status register: ffffffb9 ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in drivers/net/usb/asix_devices.c:679:27 shift exponent 208 is too large for 64-bit type 'unsigned long' CPU: 1 UID: 0 PID: 3078 Comm: kworker/1:3 Not tainted syzkaller #0 PREEMPT(none) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 Workqueue: usb_hub_wq hub_event Call Trace: dump_stack_lvl+0xa2/0xf0 lib/dump_stack.c:120 ubsan_epilogue+0x5/0x30 lib/ubsan.c:233 __ubsan_handle_shift_out_of_bounds+0x202/0x210 lib/ubsan.c:494 ax88772_init_mdio drivers/net/usb/asix_devices.c:679 [inline] ax88772_bind+0x491/0x4c0 drivers/net/usb/asix_devices.c:910 usbnet_probe+0x46e/0xae0 drivers/net/usb/usbnet.c:1781 usb_probe_interface+0x172/0x3a0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x138/0x450 drivers/base/dd.c:659 __driver_probe_device+0x72/0xf0 drivers/base/dd.c:801 driver_probe_device+0x1d/0x1b0 drivers/base/dd.c:831 __device_attach_driver+0x135/0x1b0 drivers/base/dd.c:959 bus_for_each_drv+0x113/0x170 drivers/base/bus.c:462 __device_attach+0xc3/0x190 drivers/base/dd.c:1031 bus_probe_device+0x9e/0x120 drivers/base/bus.c:537 device_add+0x255/0x440 drivers/base/core.c:3689 usb_set_configuration+0x969/0xb40 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0x2a/0x80 drivers/usb/core/generic.c:250 usb_probe_device+0x71/0x120 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x138/0x450 drivers/base/dd.c:659 __driver_probe_device+0x72/0xf0 drivers/base/dd.c:801 driver_probe_device+0x1d/0x1b0 drivers/base/dd.c:831 __device_attach_driver+0x135/0x1b0 drivers/base/dd.c:959 bus_for_each_drv+0x113/0x170 drivers/base/bus.c:462 __device_attach+0xc3/0x190 drivers/base/dd.c:1031 bus_probe_device+0x9e/0x120 drivers/base/bus.c:537 device_add+0x255/0x440 drivers/base/core.c:3689 usb_new_device+0x302/0x600 drivers/usb/core/hub.c:2694 hub_port_connect drivers/usb/core/hub.c:5566 [inline] hub_port_connect_change drivers/usb/core/hub.c:5706 [inline] port_event drivers/usb/core/hub.c:5870 [inline] hub_event+0x116c/0x1b00 drivers/usb/core/hub.c:5952 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0x2e4/0x5e0 kernel/workqueue.c:3319 worker_thread+0x20a/0x2f0 kernel/workqueue.c:3400 kthread+0x203/0x230 kernel/kthread.c:463 ret_from_fork+0xa1/0x190 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 ---[ end trace ]---