[info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 15.130219][ C1] random: crng init done [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.187' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 25.898903][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 26.138854][ T12] usb 1-1: Using ep0 maxpacket: 16 [ 26.258999][ T12] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 26.270019][ T12] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has wMaxPacketSize 0, skipping [ 26.279973][ T12] usb 1-1: config 0 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 9 [ 26.292768][ T12] usb 1-1: New USB device found, idVendor=045e, idProduct=07da, bcdDevice= 0.00 [ 26.301818][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 26.311868][ T12] usb 1-1: config 0 descriptor?? [ 26.329061][ T1713] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 26.658935][ T12] usbhid 1-1:0.0: can't add hid device: -71 [ 26.665019][ T12] usbhid: probe of 1-1:0.0 failed with error -71 [ 26.674802][ T12] usb 1-1: USB disconnect, device number 2 [ 27.128891][ T12] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 27.368856][ T12] usb 1-1: Using ep0 maxpacket: 16 [ 27.488966][ T12] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 27.499898][ T12] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has wMaxPacketSize 0, skipping [ 27.511929][ T12] usb 1-1: config 0 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 9 [ 27.524731][ T12] usb 1-1: New USB device found, idVendor=045e, idProduct=07da, bcdDevice= 0.00 [ 27.533785][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 27.542848][ T12] usb 1-1: config 0 descriptor?? [ 27.558913][ T1713] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 28.020875][ T12] microsoft 0003:045E:07DA.0001: unknown main item tag 0x0 [ 28.032225][ T12] input: HID 045e:07da as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/0003:045E:07DA.0001/input/input5 [ 28.111664][ T12] microsoft 0003:045E:07DA.0001: input,hidraw0: USB HID v0.00 Device [HID 045e:07da] on usb-dummy_hcd.0-1/input0 [ 28.220457][ T12] usb 1-1: USB disconnect, device number 3 [ 28.258923][ T1713] kasan: CONFIG_KASAN_INLINE enabled [ 28.264317][ T1713] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 28.272365][ T1713] general protection fault: 0000 [#1] SMP KASAN [ 28.278580][ T1713] CPU: 0 PID: 1713 Comm: syz-executor493 Not tainted 5.4.0-rc6-syzkaller #0 [ 28.287222][ T1713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.297264][ T1713] RIP: 0010:timer_is_static_object+0x20/0x90 [ 28.303217][ T1713] Code: 66 2e 0f 1f 84 00 00 00 00 00 41 54 53 48 89 fb e8 b5 50 0f 00 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 4f 45 31 e4 48 83 7b 08 00 74 0c e8 8b 50 0f 00 44 [ 28.322807][ T1713] RSP: 0018:ffff8881d0397af8 EFLAGS: 00010002 [ 28.328858][ T1713] RAX: dffffc0000000000 RBX: 0000000000004060 RCX: 0000000000000000 [ 28.336827][ T1713] RDX: 000000000000080d RSI: ffffffff812ed5ab RDI: 0000000000004068 [ 28.344773][ T1713] RBP: ffff8881d0397c00 R08: ffff8881d1bdc800 R09: fffffbfff1230886 [ 28.352721][ T1713] R10: fffffbfff1230885 R11: ffffffff8918442b R12: 0000000000000003 [ 28.360769][ T1713] R13: dffffc0000000000 R14: 1ffff1103a072f66 R15: 0000000000004060 [ 28.368718][ T1713] FS: 0000000001020880(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 28.377628][ T1713] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.384189][ T1713] CR2: 000000000043ff90 CR3: 00000001d1ac0000 CR4: 00000000001406f0 [ 28.392143][ T1713] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.400089][ T1713] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.408033][ T1713] Call Trace: [ 28.411327][ T1713] debug_object_assert_init+0x1f9/0x2f0 [ 28.416850][ T1713] ? debug_object_free+0x340/0x340 [ 28.421939][ T1713] ? mark_held_locks+0xe0/0xe0 [ 28.427289][ T1713] ? __kasan_slab_free+0x130/0x180 [ 28.432379][ T1713] ? kfree+0xe4/0x320 [ 28.436424][ T1713] ? lock_acquire+0x127/0x320 [ 28.441093][ T1713] del_timer+0x6d/0x100 [ 28.445221][ T1713] ? detach_if_pending+0x470/0x470 [ 28.450331][ T1713] ? __mutex_lock+0x430/0x1360 [ 28.455077][ T1713] ? trace_hardirqs_off+0x50/0x1d0 [ 28.460167][ T1713] try_to_grab_pending+0x67/0x7b0 [ 28.465175][ T1713] ? evdev_release+0xeb/0x1c0 [ 28.469826][ T1713] __cancel_work_timer+0xa6/0x460 [ 28.474823][ T1713] ? mod_delayed_work_on+0x150/0x150 [ 28.480264][ T1713] ? lockdep_hardirqs_on+0x382/0x580 [ 28.485523][ T1713] input_close_device+0xd2/0x1a0 [ 28.490437][ T1713] evdev_release+0x188/0x1c0 [ 28.495000][ T1713] ? evdev_detach_client+0x140/0x140 [ 28.501300][ T1713] __fput+0x2d7/0x840 [ 28.505271][ T1713] task_work_run+0x13f/0x1c0 [ 28.509845][ T1713] exit_to_usermode_loop+0x1d2/0x200 [ 28.515190][ T1713] do_syscall_64+0x45f/0x580 [ 28.519765][ T1713] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 28.525632][ T1713] RIP: 0033:0x4022c0 [ 28.529503][ T1713] Code: 01 f0 ff ff 0f 83 40 0d 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 6d aa 2d 00 00 75 14 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 14 0d 00 00 c3 48 83 ec 08 e8 7a 02 00 00 [ 28.549083][ T1713] RSP: 002b:00007ffc860c7068 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 28.557480][ T1713] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00000000004022c0 [ 28.565431][ T1713] RDX: 00000000200000c0 RSI: 0000000040284504 RDI: 0000000000000004 [ 28.573385][ T1713] RBP: 00007ffc860c7090 R08: 7d03000000008300 R09: 0000000000000000 [ 28.581331][ T1713] R10: 000000000000000f R11: 0000000000000246 R12: 0000000000000003 [ 28.589277][ T1713] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 28.597229][ T1713] Modules linked in: [ 28.601106][ T1713] ---[ end trace cf0e86e9ac328099 ]--- [ 28.606543][ T1713] RIP: 0010:timer_is_static_object+0x20/0x90 [ 28.612506][ T1713] Code: 66 2e 0f 1f 84 00 00 00 00 00 41 54 53 48 89 fb e8 b5 50 0f 00 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 4f 45 31 e4 48 83 7b 08 00 74 0c e8 8b 50 0f 00 44 [ 28.632094][ T1713] RSP: 0018:ffff8881d0397af8 EFLAGS: 00010002 [ 28.638136][ T1713] RAX: dffffc0000000000 RBX: 0000000000004060 RCX: 0000000000000000 [ 28.646081][ T1713] RDX: 000000000000080d RSI: ffffffff812ed5ab RDI: 0000000000004068 [ 28.654028][ T1713] RBP: ffff8881d0397c00 R08: ffff8881d1bdc800 R09: fffffbfff1230886 [ 28.661993][ T1713] R10: fffffbfff1230885 R11: ffffffff8918442b R12: 0000000000000003 [ 28.669987][ T1713] R13: dffffc0000000000 R14: 1ffff1103a072f66 R15: 0000000000004060 [ 28.677944][ T1713] FS: 0000000001020880(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 28.686958][ T1713] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.693521][ T1713] CR2: 000000000043ff90 CR3: 00000001d1ac0000 CR4: 00000000001406f0 [ 28.701476][ T1713] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.709434][ T1713] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.717393][ T1713] Kernel panic - not syncing: Fatal exception [ 28.724079][ T1713] Kernel Offset: disabled [ 28.728395][ T1713] Rebooting in 86400 seconds..