[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. [ 15.634265][ C1] random: crng init done [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] startpar: service(s) returned failure: rsyslog ssh ...[?25l[?1c7[FAIL8[?25h[?0c failed! Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.157' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 54.385820][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 54.625815][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 54.745876][ T12] usb 1-1: config 253 has an invalid interface number: 72 but max is 0 [ 54.754447][ T12] usb 1-1: config 253 has an invalid descriptor of length 0, skipping remainder of the config [ 54.765167][ T12] usb 1-1: config 253 has no interface number 0 [ 54.771656][ T12] usb 1-1: config 253 interface 72 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 54.783298][ T12] usb 1-1: New USB device found, idVendor=0424, idProduct=c001, bcdDevice=45.0a [ 54.793208][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 54.838474][ T12] usb 1-1: claimed gadget: Vendor=0424 ProdID=c001 Bus=01 Device=02 [ 54.846951][ T12] usb 1-1: device path: /sys/bus/usb/devices/1-1:253.72 [ 54.856035][ T12] most_core: registered new device mdev0 (usb_device 1-1:253.72) [ 55.018084][ T2532] usb 1-1: USB disconnect, device number 2 [ 55.025155][ T2532] kasan: CONFIG_KASAN_INLINE enabled [ 55.030587][ T2532] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 55.038705][ T2532] general protection fault: 0000 [#1] SMP KASAN PTI [ 55.045428][ T2532] CPU: 0 PID: 2532 Comm: kworker/0:2 Not tainted 5.1.0-rc3+ #7 [ 55.052957][ T2532] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.063349][ T2532] Workqueue: usb_hub_wq hub_event [ 55.068420][ T2532] RIP: 0010:device_del+0x76/0xb90 [ 55.073438][ T2532] Code: f1 f1 f1 f1 c7 40 04 00 07 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 84 24 88 00 00 00 31 c0 e8 61 0a d6 fe 48 89 d8 48 c1 e8 03 <80> 3c 28 00 0f 85 82 0a 00 00 48 8b 03 4c 8d 63 60 31 f6 4c 8d 7b [ 55.093374][ T2532] RSP: 0018:ffff8881d19477c0 EFLAGS: 00010246 [ 55.099641][ T2532] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 55.107684][ T2532] RDX: 0000000000000000 RSI: ffffffff82665dff RDI: 0000000000000000 [ 55.115774][ T2532] RBP: dffffc0000000000 R08: ffff8881d208b000 R09: ffffed10397382e6 [ 55.123742][ T2532] R10: ffffed10397382e5 R11: ffff8881cb9c172f R12: ffff8881cbae8128 [ 55.131821][ T2532] R13: ffff8881cb9c1660 R14: ffff8881cbae8030 R15: 0000000000000000 [ 55.140006][ T2532] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 55.149339][ T2532] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.156013][ T2532] CR2: 00000000006cc0a0 CR3: 0000000006c26000 CR4: 00000000001406f0 [ 55.163976][ T2532] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.171941][ T2532] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.180227][ T2532] Call Trace: [ 55.183922][ T2532] ? try_to_del_timer_sync+0xbf/0x110 [ 55.189286][ T2532] ? __device_links_no_driver+0x240/0x240 [ 55.195173][ T2532] ? mark_held_locks+0x9f/0xe0 [ 55.200111][ T2532] ? del_timer_sync+0x121/0x130 [ 55.204973][ T2532] device_unregister+0x11/0x30 [ 55.209850][ T2532] hdm_disconnect+0xdf/0x200 [ 55.214451][ T2532] usb_unbind_interface+0x1c4/0x8b0 [ 55.219636][ T2532] ? usb_autoresume_device+0x60/0x60 [ 55.225041][ T2532] device_release_driver_internal+0x431/0x4f0 [ 55.231304][ T2532] bus_remove_device+0x2ee/0x4c0 [ 55.236232][ T2532] device_del+0x462/0xb90 [ 55.240697][ T2532] ? __device_links_no_driver+0x240/0x240 [ 55.246414][ T2532] ? usb_remove_ep_devs+0x3e/0x80 [ 55.251523][ T2532] ? remove_intf_ep_devs+0x13f/0x1d0 [ 55.256812][ T2532] usb_disable_device+0x211/0x690 [ 55.261918][ T2532] usb_disconnect+0x284/0x840 [ 55.266782][ T2532] hub_event+0x13f8/0x35a0 [ 55.271422][ T2532] ? mark_held_locks+0xe0/0xe0 [ 55.276423][ T2532] ? hub_port_debounce+0x260/0x260 [ 55.281653][ T2532] process_one_work+0x90a/0x1580 [ 55.286580][ T2532] ? wq_pool_ids_show+0x300/0x300 [ 55.291811][ T2532] ? do_raw_spin_lock+0x11a/0x280 [ 55.296952][ T2532] worker_thread+0x96/0xe20 [ 55.301534][ T2532] ? process_one_work+0x1580/0x1580 [ 55.306800][ T2532] kthread+0x30e/0x420 [ 55.310864][ T2532] ? kthread_park+0x1a0/0x1a0 [ 55.315530][ T2532] ret_from_fork+0x3a/0x50 [ 55.320402][ T2532] Modules linked in: [ 55.324525][ T2532] ---[ end trace f47295fce491afc3 ]--- [ 55.330805][ T2532] RIP: 0010:device_del+0x76/0xb90 [ 55.336142][ T2532] Code: f1 f1 f1 f1 c7 40 04 00 07 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 84 24 88 00 00 00 31 c0 e8 61 0a d6 fe 48 89 d8 48 c1 e8 03 <80> 3c 28 00 0f 85 82 0a 00 00 48 8b 03 4c 8d 63 60 31 f6 4c 8d 7b [ 55.356764][ T2532] RSP: 0018:ffff8881d19477c0 EFLAGS: 00010246 [ 55.363066][ T2532] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 55.371517][ T2532] RDX: 0000000000000000 RSI: ffffffff82665dff RDI: 0000000000000000 [ 55.379888][ T2532] RBP: dffffc0000000000 R08: ffff8881d208b000 R09: ffffed10397382e6 [ 55.388103][ T2532] R10: ffffed10397382e5 R11: ffff8881cb9c172f R12: ffff8881cbae8128 [ 55.396336][ T2532] R13: ffff8881cb9c1660 R14: ffff8881cbae8030 R15: 0000000000000000 [ 55.404431][ T2532] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 55.413492][ T2532] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.420365][ T2532] CR2: 00000000006cc0a0 CR3: 0000000006c26000 CR4: 00000000001406f0 [ 55.428384][ T2532] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.436484][ T2532] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.444453][ T2532] Kernel panic - not syncing: Fatal exception [ 55.451109][ T2532] Kernel Offset: disabled [ 55.455427][ T2532] Rebooting in 86400 seconds..