[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. [ 15.410893][ 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 '10.128.1.36' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.363734][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 27.603287][ T12] usb 1-1: Using ep0 maxpacket: 16 [ 27.723296][ T12] usb 1-1: config 0 has an invalid interface number: 101 but max is 0 [ 27.731540][ T12] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 27.741680][ T12] usb 1-1: config 0 has no interface number 0 [ 27.747821][ T12] usb 1-1: config 0 interface 101 altsetting 0 endpoint 0x8C has an invalid bInterval 0, changing to 7 [ 27.758907][ T12] usb 1-1: New USB device found, idVendor=0c45, idProduct=1010, bcdDevice=a5.c1 [ 27.767974][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 27.777358][ T12] usb 1-1: config 0 descriptor?? [ 27.818500][ T12] yurex 1-1:0.101: USB YUREX device now attached to Yurex #0 [ 28.014256][ T1720] ------------[ cut here ]------------ [ 28.019800][ T1720] do not call blocking ops when !TASK_RUNNING; state=1 set at [<000000000453b57c>] prepare_to_wait+0xb1/0x2b0 [ 28.031549][ T1720] WARNING: CPU: 0 PID: 1720 at kernel/sched/core.c:6551 __might_sleep+0x135/0x190 [ 28.040747][ T1720] Kernel panic - not syncing: panic_on_warn set ... [ 28.047316][ T1720] CPU: 0 PID: 1720 Comm: syz-executor552 Not tainted 5.3.0-rc4+ #26 [ 28.055275][ T1720] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.065314][ T1720] Call Trace: [ 28.068607][ T1720] dump_stack+0xca/0x13e [ 28.072839][ T1720] ? __might_sleep+0x80/0x190 [ 28.077520][ T1720] panic+0x2a3/0x6da [ 28.081500][ T1720] ? add_taint.cold+0x16/0x16 [ 28.086162][ T1720] ? __probe_kernel_read+0x188/0x1d0 [ 28.091423][ T1720] ? __warn.cold+0x5/0x4a [ 28.095732][ T1720] ? __warn+0xe3/0x1e0 [ 28.099789][ T1720] ? __might_sleep+0x135/0x190 [ 28.104531][ T1720] __warn.cold+0x20/0x4a [ 28.108780][ T1720] ? __might_sleep+0x135/0x190 [ 28.113533][ T1720] report_bug+0x262/0x2a0 [ 28.117867][ T1720] do_error_trap+0x12b/0x1e0 [ 28.122441][ T1720] ? __might_sleep+0x135/0x190 [ 28.127186][ T1720] do_invalid_op+0x32/0x40 [ 28.131591][ T1720] ? __might_sleep+0x135/0x190 [ 28.136335][ T1720] invalid_op+0x23/0x30 [ 28.140471][ T1720] RIP: 0010:__might_sleep+0x135/0x190 [ 28.145828][ T1720] Code: 65 48 8b 1c 25 00 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 55 c6 85 e8 30 21 f6 ff <0f> 0b e9 46 ff ff ff e8 ef ee 46 00 e9 29 ff ff ff e8 e5 ee 46 00 [ 28.165505][ T1720] RSP: 0018:ffff8881c7df7a30 EFLAGS: 00010282 [ 28.171552][ T1720] RAX: 0000000000000000 RBX: ffff8881d4a49800 RCX: 0000000000000000 [ 28.179505][ T1720] RDX: 0000000000000000 RSI: ffffffff81288cfd RDI: ffffed1038fbef38 [ 28.187559][ T1720] RBP: ffffffff86a6a5d1 R08: ffff8881d4a49800 R09: fffffbfff11ad3a1 [ 28.195532][ T1720] R10: fffffbfff11ad3a0 R11: ffffffff88d69d07 R12: 00000000000001f5 [ 28.203589][ T1720] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000cc0 [ 28.211554][ T1720] ? vprintk_func+0x7d/0x113 [ 28.216132][ T1720] kmem_cache_alloc_trace+0x233/0x2f0 [ 28.221482][ T1720] ? dummy_urb_enqueue+0x7c/0x890 [ 28.226492][ T1720] dummy_urb_enqueue+0x7c/0x890 [ 28.231324][ T1720] ? usb_hcd_map_urb_for_dma+0x58e/0x13d0 [ 28.237115][ T1720] usb_hcd_submit_urb+0x2aa/0x1ee0 [ 28.242209][ T1720] ? find_held_lock+0x2d/0x110 [ 28.246966][ T1720] ? prepare_to_wait+0x121/0x2b0 [ 28.251884][ T1720] ? usb_create_hcd+0x30/0x30 [ 28.256628][ T1720] ? mark_lock+0xbc/0x1130 [ 28.261021][ T1720] ? mark_held_locks+0x9f/0xe0 [ 28.265760][ T1720] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 28.271544][ T1720] ? lockdep_hardirqs_on+0x379/0x580 [ 28.276824][ T1720] usb_submit_urb+0x6e5/0x13b0 [ 28.281573][ T1720] ? add_wait_queue_exclusive+0x110/0x180 [ 28.287273][ T1720] yurex_write+0x3b2/0x710 [ 28.291671][ T1720] ? yurex_control_callback+0x60/0x60 [ 28.297021][ T1720] ? finish_wait+0x260/0x260 [ 28.301588][ T1720] ? quarantine_put+0xb2/0x150 [ 28.306330][ T1720] ? security_file_permission+0x8a/0x370 [ 28.311943][ T1720] ? yurex_control_callback+0x60/0x60 [ 28.317473][ T1720] __vfs_write+0x76/0x100 [ 28.321804][ T1720] vfs_write+0x262/0x5c0 [ 28.326027][ T1720] ksys_write+0x127/0x250 [ 28.330334][ T1720] ? __ia32_sys_read+0xb0/0xb0 [ 28.335077][ T1720] ? hrtimer_nanosleep+0x510/0x510 [ 28.340181][ T1720] ? trace_hardirqs_off_caller+0x55/0x1e0 [ 28.346286][ T1720] do_syscall_64+0xb7/0x580 [ 28.350792][ T1720] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 28.356836][ T1720] RIP: 0033:0x440749 [ 28.360726][ T1720] 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 28.382312][ T1720] RSP: 002b:00007ffccb32e308 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 28.390741][ T1720] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440749 [ 28.399179][ T1720] RDX: 000000000000008d RSI: 0000000020000040 RDI: 0000000000000004 [ 28.407158][ T1720] RBP: 00000000006cb018 R08: 000000000000000f R09: 00000000004002c8 [ 28.415146][ T1720] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401fd0 [ 28.423201][ T1720] R13: 0000000000402060 R14: 0000000000000000 R15: 0000000000000000 [ 28.431834][ T1720] Kernel Offset: disabled [ 28.436223][ T1720] Rebooting in 86400 seconds..