ci2 starts bisection 2024-01-26 07:10:43.162686999 +0000 UTC m=+44397.036880779
bisecting fixing commit since 61cfd264993d07540f60a5c53d77a14c818e54a9
building syzkaller on 56230772cba106f46117f03491f01c3cf511ae26
ensuring issue is reproducible on original commit 61cfd264993d07540f60a5c53d77a14c818e54a9

testing commit 61cfd264993d07540f60a5c53d77a14c818e54a9 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 4b79cda8584525e99fc6076fe3fa3e45f0bc8ac90a593a0d878f20295dcf0606
all runs: crashed: SYZFAIL: tun: can't open /dev/net/tun
representative crash: SYZFAIL: tun: can't open /dev/net/tun, types: [SYZ_FAILURE]
check whether we can drop unnecessary instrumentation
disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 61cfd264993d07540f60a5c53d77a14c818e54a9 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c4ce9fce003dd8a713d578ff0abddb5cf3bc52e03bcd566774643c52aecf1d24
all runs: crashed: SYZFAIL: tun: can't open /dev/net/tun
representative crash: SYZFAIL: tun: can't open /dev/net/tun, types: [SYZ_FAILURE]
the bug reproduces without the instrumentation
disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
kconfig minimization: base=4920 full=6161 leaves diff=241
split chunks (needed=false): <241>
split chunk #0 of len 241 into 5 parts
testing without sub-chunk 1/5
disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit 61cfd264993d07540f60a5c53d77a14c818e54a9 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 770ea362b271080119428dbd8d5d8a48e77998ee8875cfb4a3e8b5f26a49a632
all runs: crashed: SYZFAIL: tun: can't open /dev/net/tun
representative crash: SYZFAIL: tun: can't open /dev/net/tun, types: [SYZ_FAILURE]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 61cfd264993d07540f60a5c53d77a14c818e54a9 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 23b0cda9e9167038694e6883e987b1d2512239b13fc5bd3b2a7c972bbde7b065
all runs: crashed: SYZFAIL: tun: can't open /dev/net/tun
representative crash: SYZFAIL: tun: can't open /dev/net/tun, types: [SYZ_FAILURE]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 61cfd264993d07540f60a5c53d77a14c818e54a9 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: a8ab2a59acee3fe71b551a123d80b9fe7dcc0c6f8dc375ea3249aac38265aa12
all runs: crashed: SYZFAIL: tun: can't open /dev/net/tun
representative crash: SYZFAIL: tun: can't open /dev/net/tun, types: [SYZ_FAILURE]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed
testing commit 61cfd264993d07540f60a5c53d77a14c818e54a9 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 90d78ef092a301afee61debf97fec15e0c6e74c8a6ab615085b31f00f3beb90c
all runs: crashed: SYZFAIL: tun: can't open /dev/net/tun
representative crash: SYZFAIL: tun: can't open /dev/net/tun, types: [SYZ_FAILURE]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit 61cfd264993d07540f60a5c53d77a14c818e54a9 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
failed building 61cfd264993d07540f60a5c53d77a14c818e54a9: net/socket.c:1189: undefined reference to `wext_handle_ioctl'
net/socket.c:3383: undefined reference to `compat_wext_handle_ioctl'
net/core/net-procfs.c:343: undefined reference to `wext_proc_exit'
net/core/net-procfs.c:327: undefined reference to `wext_proc_init'
minimized to 45 configs; suspects: [HID_ZEROPLUS 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 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 X86_X32 ZEROPLUS_FF]
disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing current HEAD 1c3a1f32bcbdc0591d0eab67b745f1f4d3ecef6b
testing commit 1c3a1f32bcbdc0591d0eab67b745f1f4d3ecef6b gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: f2848580c8d938f7ab56cdd272b8141a5ac0681e2c12d5b583a2fc372bf001b2
all runs: crashed: SYZFAIL: tun: can't open /dev/net/tun
representative crash: SYZFAIL: tun: can't open /dev/net/tun, types: [SYZ_FAILURE]
crash still not fixed/happens on the oldest tested release
revisions tested: 7, total time: 1h5m56.577126479s (build: 30m33.763105245s, test: 33m32.236056985s)
crash still not fixed or there were kernel test errors
commit msg: Revert "ipv6: remove max_size check inline with ipv4"
crash: SYZFAIL: tun: can't open /dev/net/tun
2024/01/26 08:16:15 [FATAL] executor failed 11 times: executor 0: failed to write control pipe: write |1: broken pipe
SYZFAIL: tun: can't open /dev/net/tun
 (errno 2: No such file or directory)
loop exited with status 67