[info] Using makefile-style concurrent boot in runlevel 2. [ 14.843639][ C1] random: crng init done [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.230' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 47.609378][ T102] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 47.848894][ T102] usb 1-1: Using ep0 maxpacket: 16 [ 47.969016][ T102] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 47.981230][ T102] usb 1-1: New USB device found, idVendor=17ef, idProduct=6067, bcdDevice= 0.00 [ 47.990662][ T102] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 48.000884][ T102] usb 1-1: config 0 descriptor?? [ 48.339445][ T102] usbhid 1-1:0.0: can't add hid device: -71 [ 48.345488][ T102] usbhid: probe of 1-1:0.0 failed with error -71 [ 48.353418][ T102] usb 1-1: USB disconnect, device number 2 [ 48.818936][ T102] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 49.179030][ T102] usb 1-1: too many endpoints for config 0 interface 0 altsetting 0: 255, using maximum allowed: 30 [ 49.189874][ T102] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 49.200766][ T102] usb 1-1: config 0 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 255 [ 49.213777][ T102] usb 1-1: New USB device found, idVendor=0926, idProduct=3333, bcdDevice= 0.00 [ 49.222840][ T102] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 49.231530][ T102] usb 1-1: config 0 descriptor?? [ 49.711035][ T102] keytouch 0003:0926:3333.0001: fixing up Keytouch IEC report descriptor [ 49.722324][ T102] input: HID 0926:3333 as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/0003:0926:3333.0001/input/input5 [ 49.817044][ T102] keytouch 0003:0926:3333.0001: input,hidraw0: USB HID v0.00 Keyboard [HID 0926:3333] on usb-dummy_hcd.0-1/input0 [ 49.928883][ C0] divide error: 0000 [#1] SMP KASAN [ 49.934129][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.0-rc5+ #0 [ 49.941422][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.951569][ C0] RIP: 0010:dummy_timer+0xb0d/0x2fdb [ 49.956924][ C0] Code: 0f 84 e6 fd ff ff e8 e2 70 ab fd 89 de 44 89 e7 e8 c8 71 ab fd 41 39 dc 0f 82 a6 08 00 00 e8 ca 70 ab fd 44 89 e0 31 d2 31 ff f3 89 d6 89 94 24 c0 00 00 00 e8 23 72 ab fd 8b 94 24 c0 00 00 [ 49.976604][ C0] RSP: 0018:ffff8881db209b20 EFLAGS: 00010046 [ 49.982658][ C0] RAX: 0000000000000003 RBX: 0000000000000000 RCX: ffffffff8392b468 [ 49.990617][ C0] RDX: 0000000000000000 RSI: ffffffff8392b476 RDI: 0000000000000000 [ 49.998564][ C0] RBP: 0000000000000000 R08: ffffffff86c2b200 R09: ffffed103b641353 [ 50.006606][ C0] R10: ffffed103b641352 R11: 0000000000000003 R12: 0000000000000003 [ 50.015113][ C0] R13: ffff8881d5089138 R14: dffffc0000000000 R15: ffff8881d901cb00 [ 50.024103][ C0] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 50.034682][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.041327][ C0] CR2: 00007fe7b041b000 CR3: 00000001c6549000 CR4: 00000000001406f0 [ 50.049274][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.057219][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.065782][ C0] Call Trace: [ 50.069056][ C0] [ 50.071908][ C0] ? dummy_udc_probe+0x930/0x930 [ 50.076928][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 50.082467][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 50.087750][ C0] call_timer_fn+0x179/0x650 [ 50.092602][ C0] ? dummy_udc_probe+0x930/0x930 [ 50.097624][ C0] ? msleep_interruptible+0x130/0x130 [ 50.103546][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 50.109270][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 50.114543][ C0] ? _raw_spin_unlock_irq+0x24/0x30 [ 50.119736][ C0] ? dummy_udc_probe+0x930/0x930 [ 50.124680][ C0] run_timer_softirq+0x5e3/0x1490 [ 50.129687][ C0] ? add_timer+0x7a0/0x7a0 [ 50.134176][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 50.139707][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 50.144982][ C0] __do_softirq+0x221/0x912 [ 50.149486][ C0] irq_exit+0x178/0x1a0 [ 50.153633][ C0] smp_apic_timer_interrupt+0x12f/0x500 [ 50.159154][ C0] apic_timer_interrupt+0xf/0x20 [ 50.164076][ C0] [ 50.166994][ C0] RIP: 0010:default_idle+0x28/0x2e0 [ 50.172168][ C0] Code: 90 90 41 56 41 55 65 44 8b 2d 74 ee 91 7a 41 54 55 53 0f 1f 44 00 00 e8 26 ad d3 fb e9 07 00 00 00 0f 00 2d aa 93 52 00 fb f4 <65> 44 8b 2d 50 ee 91 7a 0f 1f 44 00 00 5b 5d 41 5c 41 5d 41 5e c3 [ 50.193068][ C0] RSP: 0018:ffffffff86c07da8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 50.201546][ C0] RAX: 0000000000000007 RBX: ffffffff86c2b200 RCX: 0000000000000000 [ 50.209509][ C0] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffffffff86c2ba4c [ 50.217543][ C0] RBP: fffffbfff0d85640 R08: ffffffff86c2b200 R09: 0000000000000000 [ 50.225504][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 50.233553][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 50.241691][ C0] ? default_idle+0x1a/0x2e0 [ 50.246274][ C0] do_idle+0x3b6/0x500 [ 50.250752][ C0] ? arch_cpu_idle_exit+0x40/0x40 [ 50.255755][ C0] ? schedule+0xde/0x250 [ 50.259992][ C0] cpu_startup_entry+0x14/0x20 [ 50.264755][ C0] start_kernel+0x82a/0x864 [ 50.269232][ C0] ? mem_encrypt_init+0x5/0x5 [ 50.273885][ C0] ? x86_family+0x3d/0x50 [ 50.278205][ C0] ? load_ucode_bsp+0x23d/0x27d [ 50.283044][ C0] secondary_startup_64+0xa4/0xb0 [ 50.288193][ C0] Modules linked in: [ 50.292360][ C0] ---[ end trace 9108efe26bbefb66 ]--- [ 50.298426][ C0] RIP: 0010:dummy_timer+0xb0d/0x2fdb [ 50.303701][ C0] Code: 0f 84 e6 fd ff ff e8 e2 70 ab fd 89 de 44 89 e7 e8 c8 71 ab fd 41 39 dc 0f 82 a6 08 00 00 e8 ca 70 ab fd 44 89 e0 31 d2 31 ff f3 89 d6 89 94 24 c0 00 00 00 e8 23 72 ab fd 8b 94 24 c0 00 00 [ 50.324119][ C0] RSP: 0018:ffff8881db209b20 EFLAGS: 00010046 [ 50.330185][ C0] RAX: 0000000000000003 RBX: 0000000000000000 RCX: ffffffff8392b468 [ 50.338133][ C0] RDX: 0000000000000000 RSI: ffffffff8392b476 RDI: 0000000000000000 [ 50.346275][ C0] RBP: 0000000000000000 R08: ffffffff86c2b200 R09: ffffed103b641353 [ 50.354335][ C0] R10: ffffed103b641352 R11: 0000000000000003 R12: 0000000000000003 [ 50.362416][ C0] R13: ffff8881d5089138 R14: dffffc0000000000 R15: ffff8881d901cb00 [ 50.370890][ C0] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 50.379796][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.386353][ C0] CR2: 00007fe7b041b000 CR3: 00000001c6549000 CR4: 00000000001406f0 [ 50.394298][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.402244][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.411299][ C0] Kernel panic - not syncing: Fatal exception in interrupt [ 50.419500][ C0] Kernel Offset: disabled [ 50.424100][ C0] Rebooting in 86400 seconds..