ci2 starts bisection 2026-09-29 03:28:25.877780963 +0000 UTC m=+10379.626052357
bisecting fixing commit since dd960aad97f09a7e8bf0e92de8d2f2d061201e8b
building syzkaller on 1e72964b0111319984575e60f266d1fa0a98abb5
ensuring issue is reproducible on original commit dd960aad97f09a7e8bf0e92de8d2f2d061201e8b

testing commit dd960aad97f09a7e8bf0e92de8d2f2d061201e8b gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: c4de2d346fa91e00d0e491f79b52aa16d9524dc8c896498243f25ea99dfcec99
all runs: crashed: BUG: Address IPV6ADDR on device lo is missing its host route.
representative crash: BUG: Address IPV6ADDR on device lo is missing its host route., types: [UNKNOWN]
check whether we can drop unnecessary instrumentation
disabling configs for [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit dd960aad97f09a7e8bf0e92de8d2f2d061201e8b gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 50ede91af4dd921a2ddcb9c1d204660f116a0127afd30ee6de3e6a4237a0e66a
all runs: crashed: BUG: Address IPV6ADDR on device lo is missing its host route.
representative crash: BUG: Address IPV6ADDR on device lo is missing its host route., types: [UNKNOWN]
the bug reproduces without the instrumentation
disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak ubsan], they are not needed
kconfig minimization: base=4921 full=6218 leaves diff=256
split chunks (needed=false): <256>
split chunk #0 of len 256 into 5 parts
testing without sub-chunk 1/5
disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed
testing commit dd960aad97f09a7e8bf0e92de8d2f2d061201e8b gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: cd5286d7119a6a9ff1207174a6da31061e6ef78e142775deab7d28ce2650cd56
all runs: crashed: BUG: Address IPV6ADDR on device lo is missing its host route.
representative crash: BUG: Address IPV6ADDR on device lo is missing its host route., types: [UNKNOWN]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit dd960aad97f09a7e8bf0e92de8d2f2d061201e8b gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: fb72279adc6cb530fc24aca78c13bef41d0957b6e22d77fa494ab4ef5e9e4445
all runs: crashed: BUG: Address IPV6ADDR on device lo is missing its host route.
representative crash: BUG: Address IPV6ADDR on device lo is missing its host route., types: [UNKNOWN]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep hang memleak], they are not needed
testing commit dd960aad97f09a7e8bf0e92de8d2f2d061201e8b gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: fa080819412b83bcb0ece46ca89c00e712ec74271e28e00c223bb8600df16a8d
all runs: crashed: BUG: Address IPV6ADDR on device lo is missing its host route.
representative crash: BUG: Address IPV6ADDR on device lo is missing its host route., types: [UNKNOWN]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed
testing commit dd960aad97f09a7e8bf0e92de8d2f2d061201e8b gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: d931f032854b7e2411f8d09b2307f9575142458abdd8721f21f8f9e7b2544497
all runs: crashed: BUG: Address IPV6ADDR on device lo is missing its host route.
representative crash: BUG: Address IPV6ADDR on device lo is missing its host route., types: [UNKNOWN]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning kasan locking], they are not needed
testing commit dd960aad97f09a7e8bf0e92de8d2f2d061201e8b gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
failed building dd960aad97f09a7e8bf0e92de8d2f2d061201e8b: net/socket.c:1189:(.text+0x213b): undefined reference to `wext_handle_ioctl'
net/socket.c:3390:(.text+0x238f): undefined reference to `compat_wext_handle_ioctl'
net/core/net-procfs.c:343:(.text+0x109): undefined reference to `wext_proc_exit'
net/core/net-procfs.c:327:(.text+0x1e4): undefined reference to `wext_proc_init'
minimized to 48 configs; suspects: [HID_ZEROPLUS USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_DM9601 USB_NET_GL620A USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD USB_OHCI_HCD_PCI USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_PRINTER USB_SERIAL USB_SERIAL_FTDI_SIO USB_SERIAL_GENERIC USB_SERIAL_PL2303 USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB 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_TRANCEVIBRATOR USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_WDM USB_XHCI_PCI_RENESAS WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_ZYDAS ZEROPLUS_FF]
disabling configs for [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing current HEAD 64205e2c7d13ba3eef1fac47f1af02b405141494
testing commit 64205e2c7d13ba3eef1fac47f1af02b405141494 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 1cfa92090c5e3594c22417350d8b36b7e7373bb73a5a47be01ef0e966d3ed6b7
all runs: crashed: BUG: Address IPV6ADDR on device lo is missing its host route.
representative crash: BUG: Address IPV6ADDR on device lo is missing its host route., types: [UNKNOWN]
crash still not fixed/happens on the oldest tested release
revisions tested: 7, total time: 1h32m0.507298535s (build: 22m16.18406046s, test: 49m37.823230878s)
crash still not fixed or there were kernel test errors
commit msg: Merge bb38ff8b4daf ("NFSD: Prevent lock owner use-after-free during client teardown") into android13-5.15-lts
crash: BUG: Address IPV6ADDR on device lo is missing its host route.
IPv6: BUG: Address fc00:: on device lo is missing its host route.