[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. [....] Starting OpenBSD Secure Shell server: sshd[ 14.207989][ T1730] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. [ 14.334566][ C1] random: crng init done Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.153' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 37.171120][ T95] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 37.381574][ T95] usb 1-1: config 0 has an invalid interface number: 130 but max is 0 [ 37.389846][ T95] usb 1-1: config 0 has no interface number 0 [ 37.396026][ T95] usb 1-1: config 0 interface 130 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 37.407107][ T95] usb 1-1: New USB device found, idVendor=2040, idProduct=8265, bcdDevice=f3.4a [ 37.416211][ T95] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 37.425820][ T95] usb 1-1: config 0 descriptor?? [ 37.463406][ T95] em28xx 1-1:0.130: New device @ 480 Mbps (2040:8265, interface 130, class 130) [ 37.472801][ T95] em28xx 1-1:0.130: Audio interface 130 found (Vendor Class) executing program [ 37.741141][ T95] em28xx 1-1:0.130: unknown em28xx chip ID (0) [ 37.761143][ T95] em28xx 1-1:0.130: Config register raw data: 0xfffffffb [ 37.781115][ T95] em28xx 1-1:0.130: AC97 chip type couldn't be determined [ 37.788313][ T95] em28xx 1-1:0.130: No AC97 audio processor [ 37.794338][ T95] em28xx 1-1:0.130: We currently don't support analog TV or stream capture on dual tuners. [ 37.931132][ T95] em28xx 1-1:0.130: unknown em28xx chip ID (0) [ 37.951142][ T95] em28xx 1-1:0.130: Config register raw data: 0xfffffffb [ 37.971142][ T95] em28xx 1-1:0.130: AC97 chip type couldn't be determined [ 37.978275][ T95] em28xx 1-1:0.130: No AC97 audio processor [ 38.224848][ T95] usb 1-1: USB disconnect, device number 2 [ 38.232074][ T95] em28xx 1-1:0.130: Disconnecting em28xx #1 [ 38.237982][ T95] em28xx 1-1:0.130: Disconnecting em28xx [ 38.245675][ T95] em28xx 1-1:0.130: Freeing device [ 38.250808][ T95] em28xx 1-1:0.130: Freeing device [ 38.601070][ T95] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 38.811636][ T95] usb 1-1: config 0 has an invalid interface number: 130 but max is 0 [ 38.819843][ T95] usb 1-1: config 0 has no interface number 0 [ 38.825975][ T95] usb 1-1: config 0 interface 130 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 38.837045][ T95] usb 1-1: New USB device found, idVendor=2040, idProduct=8265, bcdDevice=f3.4a [ 38.846109][ T95] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 38.855389][ T95] usb 1-1: config 0 descriptor?? [ 38.892906][ T95] em28xx 1-1:0.130: New device @ 480 Mbps (2040:8265, interface 130, class 130) [ 38.902200][ T95] em28xx 1-1:0.130: Audio interface 130 found (Vendor Class) executing program [ 39.151164][ T95] em28xx 1-1:0.130: unknown em28xx chip ID (0) [ 39.171170][ T95] em28xx 1-1:0.130: Config register raw data: 0xfffffffb [ 39.191125][ T95] em28xx 1-1:0.130: AC97 chip type couldn't be determined [ 39.198258][ T95] em28xx 1-1:0.130: No AC97 audio processor [ 39.204238][ T95] list_add corruption. prev->next should be next (ffffffff87a52460), but was ffffffff811ae26b. (prev=ffff8881c76d4240). [ 39.216971][ T95] ------------[ cut here ]------------ [ 39.222419][ T95] kernel BUG at lib/list_debug.c:26! [ 39.227747][ T95] invalid opcode: 0000 [#1] SMP KASAN [ 39.233109][ T95] CPU: 1 PID: 95 Comm: kworker/1:2 Not tainted 5.6.0-rc3-syzkaller #0 [ 39.241252][ T95] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.251341][ T95] Workqueue: usb_hub_wq hub_event [ 39.256364][ T95] RIP: 0010:__list_add_valid.cold+0x3a/0x3c [ 39.262243][ T95] Code: 0b 48 89 f2 4c 89 e1 48 89 ee 48 c7 c7 20 27 fc 85 e8 f4 b4 3e ff 0f 0b 48 89 f1 48 c7 c7 a0 26 fc 85 4c 89 e6 e8 e0 b4 3e ff <0f> 0b 48 89 ee 48 c7 c7 40 28 fc 85 e8 cf b4 3e ff 0f 0b 4c 89 ea [ 39.281893][ T95] RSP: 0018:ffff8881d596f0a8 EFLAGS: 00010286 [ 39.287948][ T95] RAX: 0000000000000075 RBX: ffff8881cd6a4120 RCX: 0000000000000000 [ 39.295904][ T95] RDX: 0000000000000000 RSI: ffffffff812977dd RDI: ffffed103ab2de07 [ 39.303864][ T95] RBP: ffff8881cd6a4240 R08: 0000000000000075 R09: ffffed103b666248 [ 39.311865][ T95] R10: ffffed103b666247 R11: ffff8881db33123f R12: ffffffff87a52460 [ 39.319827][ T95] R13: ffff8881cd6a4000 R14: ffff8881cd6a412c R15: ffff8881cd561000 [ 39.327786][ T95] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 39.336695][ T95] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.343273][ T95] CR2: 00007fbd7f6ce000 CR3: 00000001d3164000 CR4: 00000000001406e0 [ 39.351238][ T95] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.359190][ T95] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.367149][ T95] Call Trace: [ 39.370423][ T95] em28xx_init_extension+0x44/0x1f0 [ 39.375621][ T95] em28xx_init_dev.isra.0+0xa7b/0x15d8 [ 39.381058][ T95] ? _dev_info+0xd7/0x109 [ 39.385366][ T95] ? em28xx_usb_disconnect.cold+0x284/0x284 [ 39.391248][ T95] ? lockdep_init_map+0x1b0/0x5e0 [ 39.396260][ T95] ? lockdep_init_map+0x1b0/0x5e0 [ 39.401260][ T95] em28xx_usb_probe.cold+0xcac/0x2515 [ 39.406614][ T95] usb_probe_interface+0x310/0x800 [ 39.411701][ T95] ? usb_probe_device+0x230/0x230 [ 39.416707][ T95] really_probe+0x290/0xac0 [ 39.421187][ T95] driver_probe_device+0x223/0x350 [ 39.426275][ T95] __device_attach_driver+0x1d1/0x290 [ 39.431637][ T95] ? driver_allows_async_probing+0x160/0x160 [ 39.437630][ T95] bus_for_each_drv+0x162/0x1e0 [ 39.442503][ T95] ? bus_rescan_devices+0x20/0x20 [ 39.447503][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 39.453286][ T95] ? lockdep_hardirqs_on+0x382/0x580 [ 39.458545][ T95] __device_attach+0x217/0x390 [ 39.463283][ T95] ? device_bind_driver+0xd0/0xd0 [ 39.468281][ T95] bus_probe_device+0x1e4/0x290 [ 39.473120][ T95] device_add+0x1459/0x1bf0 [ 39.477611][ T95] ? wait_for_completion+0x3c0/0x3c0 [ 39.482891][ T95] ? device_link_remove+0x110/0x110 [ 39.488069][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 39.493945][ T95] usb_set_configuration+0xe47/0x17d0 [ 39.499312][ T95] usb_generic_driver_probe+0x9d/0xe0 [ 39.504670][ T95] usb_probe_device+0xd9/0x230 [ 39.509414][ T95] ? usb_suspend+0x5f0/0x5f0 [ 39.513989][ T95] really_probe+0x290/0xac0 [ 39.518471][ T95] driver_probe_device+0x223/0x350 [ 39.523567][ T95] __device_attach_driver+0x1d1/0x290 [ 39.528916][ T95] ? driver_allows_async_probing+0x160/0x160 [ 39.534871][ T95] bus_for_each_drv+0x162/0x1e0 [ 39.539708][ T95] ? bus_rescan_devices+0x20/0x20 [ 39.544708][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 39.550500][ T95] ? lockdep_hardirqs_on+0x382/0x580 [ 39.555759][ T95] __device_attach+0x217/0x390 [ 39.560496][ T95] ? device_bind_driver+0xd0/0xd0 [ 39.565492][ T95] bus_probe_device+0x1e4/0x290 [ 39.570319][ T95] device_add+0x1459/0x1bf0 [ 39.574796][ T95] ? device_link_remove+0x110/0x110 [ 39.579992][ T95] usb_new_device.cold+0x540/0xcd0 [ 39.585095][ T95] hub_event+0x21cb/0x4300 [ 39.589485][ T95] ? hub_port_debounce+0x350/0x350 [ 39.594585][ T95] ? find_held_lock+0x2d/0x110 [ 39.599325][ T95] ? mark_held_locks+0xe0/0xe0 [ 39.604066][ T95] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 39.609585][ T95] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 39.614848][ T95] process_one_work+0x94b/0x1620 [ 39.619767][ T95] ? pwq_dec_nr_in_flight+0x310/0x310 [ 39.625142][ T95] ? do_raw_spin_lock+0x129/0x290 [ 39.630140][ T95] worker_thread+0x7ab/0xe20 [ 39.634717][ T95] ? process_one_work+0x1620/0x1620 [ 39.639895][ T95] kthread+0x318/0x420 [ 39.643985][ T95] ? kthread_create_on_node+0xf0/0xf0 [ 39.649336][ T95] ret_from_fork+0x24/0x30 [ 39.653725][ T95] Modules linked in: [ 39.657694][ T95] ---[ end trace 3c4f7f20ae2983c7 ]--- [ 39.663163][ T95] RIP: 0010:__list_add_valid.cold+0x3a/0x3c [ 39.669030][ T95] Code: 0b 48 89 f2 4c 89 e1 48 89 ee 48 c7 c7 20 27 fc 85 e8 f4 b4 3e ff 0f 0b 48 89 f1 48 c7 c7 a0 26 fc 85 4c 89 e6 e8 e0 b4 3e ff <0f> 0b 48 89 ee 48 c7 c7 40 28 fc 85 e8 cf b4 3e ff 0f 0b 4c 89 ea [ 39.688637][ T95] RSP: 0018:ffff8881d596f0a8 EFLAGS: 00010286 [ 39.694718][ T95] RAX: 0000000000000075 RBX: ffff8881cd6a4120 RCX: 0000000000000000 [ 39.702733][ T95] RDX: 0000000000000000 RSI: ffffffff812977dd RDI: ffffed103ab2de07 [ 39.710691][ T95] RBP: ffff8881cd6a4240 R08: 0000000000000075 R09: ffffed103b666248 [ 39.718681][ T95] R10: ffffed103b666247 R11: ffff8881db33123f R12: ffffffff87a52460 [ 39.726701][ T95] R13: ffff8881cd6a4000 R14: ffff8881cd6a412c R15: ffff8881cd561000 [ 39.734681][ T95] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 39.743615][ T95] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.750316][ T95] CR2: 00007fbd7f6ce000 CR3: 00000001d3164000 CR4: 00000000001406e0 [ 39.758309][ T95] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.766292][ T95] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.774266][ T95] Kernel panic - not syncing: Fatal exception [ 39.780841][ T95] Kernel Offset: disabled [ 39.785153][ T95] Rebooting in 86400 seconds..