[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. [ 12.705737][ C1] random: crng init done [ 12.710113][ C1] random: 7 urandom warning(s) missed due to ratelimiting Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.179' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 23.644341][ T5] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 23.883805][ T5] usb 1-1: Using ep0 maxpacket: 8 [ 24.023842][ T5] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x85 has an invalid bInterval 0, changing to 7 [ 24.034812][ T5] usb 1-1: New USB device found, idVendor=0c45, idProduct=1010, bcdDevice=6d.5d [ 24.043868][ T5] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 24.053428][ T5] usb 1-1: config 0 descriptor?? [ 24.102508][ T5] yurex 1-1:0.0: USB YUREX device now attached to Yurex #0 [ 24.294050][ T340] ------------[ cut here ]------------ [ 24.299618][ T340] do not call blocking ops when !TASK_RUNNING; state=1 set at [<00000000370c7c68>] prepare_to_wait+0xb1/0x2a0 [ 24.311357][ T340] WARNING: CPU: 1 PID: 340 at kernel/sched/core.c:7253 __might_sleep+0x135/0x190 [ 24.320536][ T340] Kernel panic - not syncing: panic_on_warn set ... [ 24.327530][ T340] CPU: 1 PID: 340 Comm: syz-executor677 Not tainted 5.8.0-syzkaller #0 [ 24.335750][ T340] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.345779][ T340] Call Trace: [ 24.349054][ T340] dump_stack+0xf6/0x16e [ 24.353287][ T340] panic+0x2aa/0x6e1 [ 24.357170][ T340] ? __warn_printk+0xf3/0xf3 [ 24.361748][ T340] ? __warn.cold+0x5/0x50 [ 24.366070][ T340] ? __warn+0xd6/0x1f2 [ 24.370111][ T340] ? __might_sleep+0x135/0x190 [ 24.374849][ T340] __warn.cold+0x20/0x50 [ 24.379071][ T340] ? __might_sleep+0x135/0x190 [ 24.383811][ T340] report_bug+0x1bd/0x210 [ 24.388115][ T340] handle_bug+0x41/0x80 [ 24.392243][ T340] exc_invalid_op+0x14/0x40 [ 24.396735][ T340] asm_exc_invalid_op+0x12/0x20 [ 24.401575][ T340] RIP: 0010:__might_sleep+0x135/0x190 [ 24.406930][ T340] Code: 65 48 8b 1c 25 40 ef 01 00 48 8d 7b 10 48 89 fe 48 c1 ee 03 80 3c 06 00 75 2b 48 8b 73 10 48 c7 c7 e0 9e 06 86 e8 ed 12 f6 ff <0f> 0b e9 46 ff ff ff e8 1f b2 4b 00 e9 29 ff ff ff e8 15 b2 4b 00 [ 24.426649][ T340] RSP: 0018:ffff8881cdb77a28 EFLAGS: 00010282 [ 24.432693][ T340] RAX: 0000000000000000 RBX: ffff8881c6458000 RCX: 0000000000000000 [ 24.440663][ T340] RDX: ffff8881c6458000 RSI: ffffffff8129ec93 RDI: ffffed1039b6ef37 [ 24.448627][ T340] RBP: ffffffff86fdade2 R08: 0000000000000001 R09: ffff8881db32f54f [ 24.456574][ T340] R10: 0000000000000000 R11: 0000000030343354 R12: 00000000000001f2 [ 24.464534][ T340] R13: 0000000000000000 R14: 0000000000000068 R15: ffffffff83c1b1aa [ 24.472503][ T340] ? dummy_urb_enqueue+0x7a/0x880 [ 24.477517][ T340] ? vprintk_func+0x93/0x133 [ 24.482080][ T340] ? __might_sleep+0x135/0x190 [ 24.486853][ T340] slab_pre_alloc_hook.constprop.0+0xea/0x200 [ 24.492904][ T340] kmem_cache_alloc_trace+0x46/0x220 [ 24.498190][ T340] dummy_urb_enqueue+0x7a/0x880 [ 24.503020][ T340] usb_hcd_submit_urb+0x2b2/0x22d0 [ 24.508115][ T340] ? prepare_to_wait+0x7c/0x2a0 [ 24.512937][ T340] ? find_held_lock+0x2d/0x110 [ 24.517676][ T340] ? usb_add_hcd+0x2c0/0x2c0 [ 24.522239][ T340] ? mark_held_locks+0x9f/0xe0 [ 24.526978][ T340] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 24.532758][ T340] ? lockdep_hardirqs_on_prepare+0x322/0x4f0 [ 24.538713][ T340] ? trace_hardirqs_on+0x5f/0x200 [ 24.543713][ T340] usb_submit_urb+0xb4e/0x13e0 [ 24.548501][ T340] ? prepare_to_wait_exclusive+0x270/0x2d0 [ 24.554287][ T340] yurex_write+0x3ea/0x820 [ 24.558679][ T340] ? yurex_control_callback+0x60/0x60 [ 24.564029][ T340] ? add_wait_queue_exclusive+0x180/0x180 [ 24.569735][ T340] ? putname+0xe1/0x120 [ 24.573882][ T340] ? security_file_permission+0x248/0x560 [ 24.579588][ T340] ? yurex_control_callback+0x60/0x60 [ 24.584932][ T340] vfs_write+0x2b0/0x730 [ 24.589149][ T340] ksys_write+0x12d/0x250 [ 24.593471][ T340] ? __ia32_sys_read+0xb0/0xb0 [ 24.598208][ T340] ? trace_hardirqs_on+0x5f/0x200 [ 24.603205][ T340] do_syscall_64+0x2d/0x40 [ 24.607598][ T340] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 24.613464][ T340] RIP: 0033:0x444809 [ 24.617334][ T340] Code: e8 bc af 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 9b d7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 24.636932][ T340] RSP: 002b:00007ffc4c2b1358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 24.645320][ T340] RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000444809 [ 24.653352][ T340] RDX: 00000000000000cb RSI: 0000000020000300 RDI: 0000000000000004 [ 24.661299][ T340] RBP: 00000000006cf018 R08: 000000000000000f R09: 00000000004002e0 [ 24.669260][ T340] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402430 [ 24.677222][ T340] R13: 00000000004024c0 R14: 0000000000000000 R15: 0000000000000000 [ 24.685680][ T340] Kernel Offset: disabled [ 24.690045][ T340] Rebooting in 86400 seconds..