[ 45.973654][ T22] audit: type=1800 audit(1556286682.044:27): pid=5180 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0 [ 45.973678][ T22] audit: type=1800 audit(1556286682.044:28): pid=5180 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2450 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 46.915912][ T22] audit: type=1800 audit(1556286683.014:29): pid=5180 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 [ 46.940534][ T22] audit: type=1800 audit(1556286683.014:30): pid=5180 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.48' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 58.104875][ T558] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 58.114852][ T12] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 58.115339][ T17] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 58.130353][ T533] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 58.137929][ T21] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 58.144908][ T534] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 58.344851][ T558] usb 1-1: Using ep0 maxpacket: 8 [ 58.364857][ T12] usb 2-1: Using ep0 maxpacket: 8 [ 58.384914][ T21] usb 4-1: Using ep0 maxpacket: 8 [ 58.390039][ T17] usb 6-1: Using ep0 maxpacket: 8 [ 58.395176][ T533] usb 5-1: Using ep0 maxpacket: 8 [ 58.414848][ T534] usb 3-1: Using ep0 maxpacket: 8 [ 58.475047][ T558] usb 1-1: config 0 interface 0 has no altsetting 0 [ 58.481863][ T558] usb 1-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 58.491230][ T558] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 58.501596][ T558] usb 1-1: config 0 descriptor?? [ 58.504974][ T12] usb 2-1: config 0 interface 0 has no altsetting 0 [ 58.506802][ T21] usb 4-1: config 0 interface 0 has no altsetting 0 [ 58.513318][ T12] usb 2-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 58.520095][ T21] usb 4-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 58.529032][ T12] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 58.538119][ T21] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 58.553112][ T12] usb 2-1: config 0 descriptor?? [ 58.555041][ T17] usb 6-1: config 0 interface 0 has no altsetting 0 [ 58.565719][ T17] usb 6-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 58.574759][ T17] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 58.583217][ T533] usb 5-1: config 0 interface 0 has no altsetting 0 [ 58.589930][ T533] usb 5-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 58.599020][ T533] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 58.604946][ T534] usb 3-1: config 0 interface 0 has no altsetting 0 [ 58.610858][ T558] snd_usb_toneport 1-1:0.0: Line 6 POD Studio UX2 found [ 58.613756][ T534] usb 3-1: New USB device found, idVendor=0e41, idProduct=4151, bcdDevice=7a.8f [ 58.629874][ T534] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 58.642453][ T21] usb 4-1: config 0 descriptor?? [ 58.645911][ T12] snd_usb_toneport 2-1:0.0: Line 6 POD Studio UX2 found [ 58.648097][ T533] usb 5-1: config 0 descriptor?? [ 58.661270][ T17] usb 6-1: config 0 descriptor?? [ 58.681270][ T534] usb 3-1: config 0 descriptor?? [ 58.697322][ T21] snd_usb_toneport 4-1:0.0: Line 6 POD Studio UX2 found [ 58.727245][ T534] snd_usb_toneport 3-1:0.0: Line 6 POD Studio UX2 found [ 58.727253][ T17] snd_usb_toneport 6-1:0.0: Line 6 POD Studio UX2 found [ 58.729211][ T533] snd_usb_toneport 5-1:0.0: Line 6 POD Studio UX2 found executing program executing program [ 58.814986][ T558] snd_usb_toneport 1-1:0.0: read request failed (error -71) [ 58.825088][ T12] snd_usb_toneport 2-1:0.0: read request failed (error -71) [ 58.834939][ T558] snd_usb_toneport 1-1:0.0: read request failed (error -71) [ 58.845124][ T12] snd_usb_toneport 2-1:0.0: read request failed (error -71) [ 58.854987][ T558] snd_usb_toneport 1-1:0.0: write request failed (error -71) [ 58.864969][ T12] snd_usb_toneport 2-1:0.0: write request failed (error -71) [ 58.875028][ T558] usb 1-1: send failed (error -71) [ 58.885099][ T12] usb 2-1: send failed (error -71) [ 58.905138][ T12] usb 2-1: send failed (error -71) executing program executing program executing program [ 58.909463][ T558] usb 1-1: send failed (error -71) executing program [ 58.944674][ T12] snd_usb_toneport 2-1:0.0: Line 6 POD Studio UX2 now attached [ 58.955434][ T558] snd_usb_toneport 1-1:0.0: Line 6 POD Studio UX2 now attached [ 58.961391][ T12] usb 2-1: USB disconnect, device number 2 [ 58.963820][ T21] snd_usb_toneport 4-1:0.0: read request failed (error -71) [ 58.970130][ T534] snd_usb_toneport 3-1:0.0: read request failed (error -71) [ 58.976984][ T17] snd_usb_toneport 6-1:0.0: read request failed (error -71) [ 58.977121][ T533] snd_usb_toneport 5-1:0.0: read request failed (error -71) [ 58.997027][ T12] snd_usb_toneport 2-1:0.0: Line 6 POD Studio UX2 now disconnected [ 58.999430][ T17] snd_usb_toneport 6-1:0.0: read request failed (error -71) [ 59.007586][ T534] snd_usb_toneport 3-1:0.0: read request failed (error -71) [ 59.020380][ T558] usb 1-1: USB disconnect, device number 2 [ 59.040719][ T558] snd_usb_toneport 1-1:0.0: Line 6 POD Studio UX2 now disconnected [ 59.045042][ T534] snd_usb_toneport 3-1:0.0: write request failed (error -71) [ 59.048983][ T17] snd_usb_toneport 6-1:0.0: write request failed (error -71) [ 59.063565][ T21] snd_usb_toneport 4-1:0.0: read request failed (error -71) [ 59.071212][ T533] snd_usb_toneport 5-1:0.0: read request failed (error -71) [ 59.075030][ T534] usb 3-1: send failed (error -71) [ 59.094896][ T534] usb 3-1: send failed (error -71) [ 59.094902][ T17] usb 6-1: send failed (error -71) [ 59.115157][ T533] snd_usb_toneport 5-1:0.0: write request failed (error -71) [ 59.117292][ T534] snd_usb_toneport 3-1:0.0: Line 6 POD Studio UX2 now attached [ 59.122702][ T21] snd_usb_toneport 4-1:0.0: write request failed (error -71) [ 59.132402][ T534] usb 3-1: USB disconnect, device number 2 [ 59.137847][ T17] usb 6-1: send failed (error -71) [ 59.149454][ T534] snd_usb_toneport 3-1:0.0: Line 6 POD Studio UX2 now disconnected [ 59.153740][ T533] usb 5-1: send failed (error -71) [ 59.170100][ T17] snd_usb_toneport 6-1:0.0: Line 6 POD Studio UX2 now attached [ 59.177836][ T21] usb 4-1: send failed (error -71) [ 59.183109][ T533] usb 5-1: send failed (error -71) [ 59.194367][ T17] usb 6-1: USB disconnect, device number 2 [ 59.200459][ T21] usb 4-1: send failed (error -71) [ 59.208308][ T533] snd_usb_toneport 5-1:0.0: Line 6 POD Studio UX2 now attached [ 59.226234][ T21] snd_usb_toneport 4-1:0.0: Line 6 POD Studio UX2 now attached [ 59.244690][ T17] snd_usb_toneport 6-1:0.0: Line 6 POD Studio UX2 now disconnected [ 59.253766][ T533] usb 5-1: USB disconnect, device number 2 [ 59.259946][ T21] usb 4-1: USB disconnect, device number 2 [ 59.269328][ T17] list_del corruption. prev->next should be ffff8880a7d4d368, but was ffff8880a7d43228 [ 59.279343][ T17] ------------[ cut here ]------------ [ 59.284808][ T17] kernel BUG at lib/list_debug.c:51! [ 59.290177][ T17] invalid opcode: 0000 [#1] SMP KASAN PTI [ 59.296701][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.1.0-rc3-319004-g43151d6 #6 [ 59.305464][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.315577][ T17] Workqueue: usb_hub_wq hub_event [ 59.320631][ T17] RIP: 0010:__list_del_entry_valid.cold+0xf/0x55 [ 59.326956][ T17] Code: e8 19 33 ea fd 0f 0b 48 89 f1 48 c7 c7 e0 93 b3 8e 4c 89 e6 e8 05 33 ea fd 0f 0b 48 89 ee 48 c7 c7 80 95 b3 8e e8 f4 32 ea fd <0f> 0b 4c 89 ea 48 89 ee 48 c7 c7 c0 94 b3 8e e8 e0 32 ea fd 0f 0b [ 59.346681][ T17] RSP: 0018:ffff8880a84f7768 EFLAGS: 00010286 [ 59.352819][ T17] RAX: 0000000000000054 RBX: ffff8880a7d4d270 RCX: 0000000000000000 [ 59.360778][ T17] RDX: 0000000000000000 RSI: ffffffff815b2342 RDI: ffffed101509eedf [ 59.368749][ T17] RBP: ffff8880a7d4d368 R08: 0000000000000054 R09: 0000000000000000 [ 59.376701][ T17] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a7d4d0e8 [ 59.384665][ T17] R13: ffff88821ba64e98 R14: ffff8880a7d4d270 R15: ffff8880a7d4d358 [ 59.384856][ T12] usb 2-1: new high-speed USB device number 3 using dummy_hcd [ 59.392625][ T17] FS: 0000000000000000(0000) GS:ffff8880ad100000(0000) knlGS:0000000000000000 [ 59.392633][ T17] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.392641][ T17] CR2: 00007f12b63d7000 CR3: 00000000a0878000 CR4: 00000000001406e0 [ 59.392651][ T17] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.392657][ T17] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.392669][ T17] Call Trace: [ 59.442863][ T17] snd_info_free_entry+0x137/0x340 [ 59.448019][ T17] ? line6_write_data+0x2d0/0x2d0 [ 59.453044][ T17] snd_info_card_free+0x43/0x90 [ 59.457912][ T17] release_card_device+0x8b/0x100 [ 59.462930][ T17] ? card_id_show_attr+0x40/0x40 [ 59.467870][ T17] device_release+0x7d/0x210 [ 59.472468][ T17] ? dev_attr_show+0xa0/0xa0 [ 59.477072][ T17] kobject_put+0x1df/0x4f0 [ 59.481577][ T17] put_device+0x21/0x30 [ 59.485729][ T17] snd_card_free_when_closed+0x3a/0x50 [ 59.491345][ T17] line6_disconnect.cold+0xa3/0xbc [ 59.496575][ T17] usb_unbind_interface+0x1c9/0x8b0 [ 59.501769][ T17] ? usb_autoresume_device+0x60/0x60 [ 59.504852][ T534] usb 3-1: new high-speed USB device number 3 using dummy_hcd [ 59.507047][ T17] device_release_driver_internal+0x436/0x4f0 [ 59.507064][ T17] bus_remove_device+0x302/0x5c0 [ 59.507081][ T17] device_del+0x467/0xb90 [ 59.529988][ T17] ? mark_held_locks+0x9f/0xe0 [ 59.534752][ T17] ? __device_links_no_driver+0x240/0x240 [ 59.540458][ T17] ? lockdep_hardirqs_on+0x37e/0x580 [ 59.545738][ T17] ? remove_intf_ep_devs+0x144/0x1d0 [ 59.551020][ T17] usb_disable_device+0x242/0x790 [ 59.556038][ T17] usb_disconnect+0x298/0x870 [ 59.560712][ T17] hub_event+0xcd2/0x3b00 [ 59.565040][ T17] ? mark_held_locks+0xe0/0xe0 [ 59.569786][ T17] ? hub_port_debounce+0x350/0x350 [ 59.574907][ T17] ? _raw_spin_unlock_irq+0x29/0x40 [ 59.580190][ T17] process_one_work+0x90f/0x1580 [ 59.585135][ T17] ? wq_pool_ids_show+0x300/0x300 [ 59.590182][ T17] ? do_raw_spin_lock+0x11f/0x290 [ 59.595196][ T17] worker_thread+0x7b0/0xe20 [ 59.599776][ T17] ? process_one_work+0x1580/0x1580 [ 59.604959][ T17] kthread+0x313/0x420 [ 59.609018][ T17] ? kthread_park+0x1a0/0x1a0 [ 59.613682][ T17] ret_from_fork+0x3a/0x50 [ 59.618074][ T17] Modules linked in: [ 59.622046][ T17] ---[ end trace 20b01c4fa2eeb987 ]--- [ 59.627536][ T17] RIP: 0010:__list_del_entry_valid.cold+0xf/0x55 [ 59.633842][ T17] Code: e8 19 33 ea fd 0f 0b 48 89 f1 48 c7 c7 e0 93 b3 8e 4c 89 e6 e8 05 33 ea fd 0f 0b 48 89 ee 48 c7 c7 80 95 b3 8e e8 f4 32 ea fd <0f> 0b 4c 89 ea 48 89 ee 48 c7 c7 c0 94 b3 8e e8 e0 32 ea fd 0f 0b [ 59.634825][ T12] usb 2-1: Using ep0 maxpacket: 8 [ 59.653560][ T17] RSP: 0018:ffff8880a84f7768 EFLAGS: 00010286 [ 59.653572][ T17] RAX: 0000000000000054 RBX: ffff8880a7d4d270 RCX: 0000000000000000 [ 59.653579][ T17] RDX: 0000000000000000 RSI: ffffffff815b2342 RDI: ffffed101509eedf [ 59.653586][ T17] RBP: ffff8880a7d4d368 R08: 0000000000000054 R09: 0000000000000000 [ 59.653601][ T17] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a7d4d0e8 [ 59.696542][ T17] R13: ffff88821ba64e98 R14: ffff8880a7d4d270 R15: ffff8880a7d4d358 [ 59.704497][ T17] FS: 0000000000000000(0000) GS:ffff8880ad100000(0000) knlGS:0000000000000000 [ 59.713439][ T17] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.720046][ T17] CR2: 00007f12b63d7000 CR3: 00000000a0878000 CR4: 00000000001406e0 [ 59.728057][ T17] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.736047][ T17] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.744020][ T17] Kernel panic - not syncing: Fatal exception [ 59.744823][ T534] usb 3-1: Using ep0 maxpacket: 8 [ 59.751094][ T17] Kernel Offset: disabled [ 59.760408][ T17] Rebooting in 86400 seconds..