[ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.55' (ECDSA) to the list of known hosts. syzkaller login: [ 148.741760][ T8488] IPVS: ftp: loaded support on port[0] = 21 executing program [ 149.112797][ T28] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 149.472954][ T28] usb 1-1: config 0 has an invalid interface number: 1 but max is 0 [ 149.481025][ T28] usb 1-1: config 0 has no interface number 0 [ 149.487485][ T28] usb 1-1: New USB device found, idVendor=0b48, idProduct=1003, bcdDevice=df.34 [ 149.496820][ T28] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 149.507969][ T28] usb 1-1: config 0 descriptor?? [ 149.558554][ T28] usb 1-1: selecting invalid altsetting 1 [ 149.564751][ T28] ttusb_init_controller: error [ 149.569692][ T28] dvbdev: DVB: registering new adapter (Technotrend/Hauppauge Nova-USB) [ 149.783836][ T904] tipc: TX() has been purged, node left! [ 149.814079][ T28] ===================================================== [ 149.821067][ T28] BUG: KMSAN: uninit-value in tda8083_attach+0x55a/0x6d0 [ 149.828107][ T28] CPU: 1 PID: 28 Comm: kworker/1:1 Not tainted 5.8.0-rc5-syzkaller #0 [ 149.836262][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 149.846362][ T28] Workqueue: usb_hub_wq hub_event [ 149.851393][ T28] Call Trace: [ 149.854715][ T28] dump_stack+0x21c/0x280 [ 149.859056][ T28] kmsan_report+0xf7/0x1e0 [ 149.863482][ T28] __msan_warning+0x58/0xa0 [ 149.867989][ T28] tda8083_attach+0x55a/0x6d0 [ 149.872672][ T28] ? cx22700_i2c_gate_ctrl+0x7e0/0x7e0 [ 149.878171][ T28] ttusb_probe+0x4238/0x5040 [ 149.882766][ T28] ? __pm_runtime_set_status+0x1b16/0x1e50 [ 149.888571][ T28] ? kmsan_get_metadata+0x116/0x180 [ 149.893777][ T28] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 149.899587][ T28] ? ttusbdecfe_dvbs_set_voltage+0x120/0x120 [ 149.905574][ T28] usb_probe_interface+0xece/0x1550 [ 149.910790][ T28] ? usb_register_driver+0x900/0x900 [ 149.916083][ T28] really_probe+0xf20/0x20b0 [ 149.920685][ T28] ? kmsan_get_metadata+0x116/0x180 [ 149.925878][ T28] driver_probe_device+0x293/0x390 [ 149.930994][ T28] __device_attach_driver+0x63f/0x830 [ 149.936373][ T28] bus_for_each_drv+0x2ca/0x3f0 [ 149.941215][ T28] ? coredump_store+0xf0/0xf0 [ 149.945940][ T28] __device_attach+0x4e2/0x7f0 [ 149.950741][ T28] device_initial_probe+0x4a/0x60 [ 149.955761][ T28] bus_probe_device+0x177/0x3d0 [ 149.960620][ T28] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 149.966419][ T28] device_add+0x3b0e/0x40d0 [ 149.970942][ T28] usb_set_configuration+0x380f/0x3f10 [ 149.976408][ T28] ? usb_set_configuration+0xb41/0x3f10 [ 149.981977][ T28] usb_generic_driver_probe+0x138/0x300 [ 149.987516][ T28] ? usb_choose_configuration+0xe70/0xe70 [ 149.993242][ T28] usb_probe_device+0x311/0x490 [ 149.998089][ T28] ? usb_register_device_driver+0x540/0x540 [ 150.003972][ T28] really_probe+0xf20/0x20b0 [ 150.008560][ T28] ? kmsan_get_metadata+0x116/0x180 [ 150.013775][ T28] driver_probe_device+0x293/0x390 [ 150.018895][ T28] __device_attach_driver+0x63f/0x830 [ 150.024272][ T28] bus_for_each_drv+0x2ca/0x3f0 [ 150.029117][ T28] ? coredump_store+0xf0/0xf0 [ 150.033793][ T28] __device_attach+0x4e2/0x7f0 [ 150.038573][ T28] device_initial_probe+0x4a/0x60 [ 150.044739][ T28] bus_probe_device+0x177/0x3d0 [ 150.049586][ T28] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 150.055399][ T28] device_add+0x3b0e/0x40d0 [ 150.059932][ T28] usb_new_device+0x1bd4/0x2a30 [ 150.064810][ T28] hub_event+0x5e7b/0x8a70 [ 150.069274][ T28] ? kmsan_get_metadata+0x116/0x180 [ 150.074489][ T28] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 150.080301][ T28] ? led_work+0x7c0/0x7c0 [ 150.084638][ T28] process_one_work+0x1688/0x2140 [ 150.089692][ T28] worker_thread+0x10bc/0x2730 [ 150.094464][ T28] ? kmsan_get_metadata+0x116/0x180 [ 150.099686][ T28] kthread+0x551/0x590 [ 150.103749][ T28] ? process_one_work+0x2140/0x2140 [ 150.109132][ T28] ? kthread_blkcg+0x110/0x110 [ 150.113894][ T28] ret_from_fork+0x1f/0x30 [ 150.118302][ T28] [ 150.120616][ T28] Local variable ----reg1.addr.i.i@tda8083_attach created at: [ 150.128060][ T28] tda8083_attach+0x1af/0x6d0 [ 150.132740][ T28] tda8083_attach+0x1af/0x6d0 [ 150.137408][ T28] ===================================================== [ 150.144317][ T28] Disabling lock debugging due to kernel taint [ 150.150462][ T28] Kernel panic - not syncing: panic_on_warn set ... [ 150.157219][ T28] CPU: 1 PID: 28 Comm: kworker/1:1 Tainted: G B 5.8.0-rc5-syzkaller #0 [ 150.166737][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 150.176806][ T28] Workqueue: usb_hub_wq hub_event [ 150.181826][ T28] Call Trace: [ 150.185111][ T28] dump_stack+0x21c/0x280 [ 150.189450][ T28] panic+0x4d7/0xef7 [ 150.193357][ T28] ? add_taint+0x17c/0x210 [ 150.197782][ T28] kmsan_report+0x1df/0x1e0 [ 150.202278][ T28] __msan_warning+0x58/0xa0 [ 150.206788][ T28] tda8083_attach+0x55a/0x6d0 [ 150.212596][ T28] ? cx22700_i2c_gate_ctrl+0x7e0/0x7e0 [ 150.218057][ T28] ttusb_probe+0x4238/0x5040 [ 150.222652][ T28] ? __pm_runtime_set_status+0x1b16/0x1e50 [ 150.228478][ T28] ? kmsan_get_metadata+0x116/0x180 [ 150.233681][ T28] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 150.239479][ T28] ? ttusbdecfe_dvbs_set_voltage+0x120/0x120 [ 150.245463][ T28] usb_probe_interface+0xece/0x1550 [ 150.250678][ T28] ? usb_register_driver+0x900/0x900 [ 150.255954][ T28] really_probe+0xf20/0x20b0 [ 150.260539][ T28] ? kmsan_get_metadata+0x116/0x180 [ 150.265734][ T28] driver_probe_device+0x293/0x390 [ 150.270839][ T28] __device_attach_driver+0x63f/0x830 [ 150.276222][ T28] bus_for_each_drv+0x2ca/0x3f0 [ 150.281060][ T28] ? coredump_store+0xf0/0xf0 [ 150.285734][ T28] __device_attach+0x4e2/0x7f0 [ 150.290500][ T28] device_initial_probe+0x4a/0x60 [ 150.295518][ T28] bus_probe_device+0x177/0x3d0 [ 150.300394][ T28] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 150.306316][ T28] device_add+0x3b0e/0x40d0 [ 150.310834][ T28] usb_set_configuration+0x380f/0x3f10 [ 150.316336][ T28] ? usb_set_configuration+0xb41/0x3f10 [ 150.321903][ T28] usb_generic_driver_probe+0x138/0x300 [ 150.327443][ T28] ? usb_choose_configuration+0xe70/0xe70 [ 150.333194][ T28] usb_probe_device+0x311/0x490 [ 150.338037][ T28] ? usb_register_device_driver+0x540/0x540 [ 150.343967][ T28] really_probe+0xf20/0x20b0 [ 150.348591][ T28] ? kmsan_get_metadata+0x116/0x180 [ 150.353802][ T28] driver_probe_device+0x293/0x390 [ 150.358908][ T28] __device_attach_driver+0x63f/0x830 [ 150.364435][ T28] bus_for_each_drv+0x2ca/0x3f0 [ 150.369272][ T28] ? coredump_store+0xf0/0xf0 [ 150.373948][ T28] __device_attach+0x4e2/0x7f0 [ 150.378732][ T28] device_initial_probe+0x4a/0x60 [ 150.383778][ T28] bus_probe_device+0x177/0x3d0 [ 150.388624][ T28] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 150.394420][ T28] device_add+0x3b0e/0x40d0 [ 150.398935][ T28] usb_new_device+0x1bd4/0x2a30 [ 150.403792][ T28] hub_event+0x5e7b/0x8a70 [ 150.408241][ T28] ? kmsan_get_metadata+0x116/0x180 [ 150.413429][ T28] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 150.419239][ T28] ? led_work+0x7c0/0x7c0 [ 150.423569][ T28] process_one_work+0x1688/0x2140 [ 150.428600][ T28] worker_thread+0x10bc/0x2730 [ 150.433353][ T28] ? kmsan_get_metadata+0x116/0x180 [ 150.438572][ T28] kthread+0x551/0x590 [ 150.442645][ T28] ? process_one_work+0x2140/0x2140 [ 150.447850][ T28] ? kthread_blkcg+0x110/0x110 [ 150.452605][ T28] ret_from_fork+0x1f/0x30 [ 150.457577][ T28] ------------[ cut here ]------------ [ 150.463037][ T28] kernel BUG at mm/kmsan/kmsan.h:87! [ 150.468311][ T28] invalid opcode: 0000 [#1] SMP [ 150.473145][ T28] CPU: 1 PID: 28 Comm: kworker/1:1 Tainted: G B 5.8.0-rc5-syzkaller #0 [ 150.482657][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 150.492709][ T28] Workqueue: usb_hub_wq hub_event [ 150.497735][ T28] RIP: 0010:kmsan_internal_check_memory+0x3c0/0x3d0 [ 150.504312][ T28] Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b 48 c7 c7 b0 63 e1 91 31 c0 e8 f8 02 30 ff 0f 0b 0f 0b 0f 0b 0f 0b e8 c2 13 b0 0e 0f 0b <0f> 0b 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 83 ff [ 150.523915][ T28] RSP: 0018:ffff88812d05a608 EFLAGS: 00010046 [ 150.529974][ T28] RAX: 0000000000000002 RBX: 000000000511001e RCX: 000000000511001e [ 150.537977][ T28] RDX: 0000000000000000 RSI: 00000000000004a0 RDI: ffff88812d05a6ec [ 150.545938][ T28] RBP: ffff88812d05a6b0 R08: ffffea000000000f R09: ffff88812fffa000 [ 150.553903][ T28] R10: 0000000000000002 R11: ffff88812dfd3d00 R12: 0000000000000000 [ 150.561866][ T28] R13: 0000000000000001 R14: 0000000000000006 R15: 0000000000000001 [ 150.569828][ T28] FS: 0000000000000000(0000) GS:ffff88812fd00000(0000) knlGS:0000000000000000 [ 150.578740][ T28] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 150.585321][ T28] CR2: 00007f3f0529ef04 CR3: 00000000bb9a7000 CR4: 00000000001406e0 [ 150.593277][ T28] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 150.601234][ T28] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 150.609185][ T28] Call Trace: [ 150.612483][ T28] kmsan_check_memory+0xd/0x10 [ 150.617239][ T28] iowrite8+0x99/0x300 [ 150.621304][ T28] pvpanic_panic_notify+0xb7/0xe0 [ 150.626320][ T28] ? pvpanic_mmio_remove+0x60/0x60 [ 150.631420][ T28] atomic_notifier_call_chain+0x123/0x290 [ 150.637140][ T28] panic+0x560/0xef7 [ 150.641043][ T28] ? add_taint+0x17c/0x210 [ 150.645458][ T28] kmsan_report+0x1df/0x1e0 [ 150.649968][ T28] __msan_warning+0x58/0xa0 [ 150.654468][ T28] tda8083_attach+0x55a/0x6d0 [ 150.659146][ T28] ? cx22700_i2c_gate_ctrl+0x7e0/0x7e0 [ 150.664604][ T28] ttusb_probe+0x4238/0x5040 [ 150.669205][ T28] ? __pm_runtime_set_status+0x1b16/0x1e50 [ 150.675030][ T28] ? kmsan_get_metadata+0x116/0x180 [ 150.680220][ T28] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 150.686021][ T28] ? ttusbdecfe_dvbs_set_voltage+0x120/0x120 [ 150.691994][ T28] usb_probe_interface+0xece/0x1550 [ 150.697196][ T28] ? usb_register_driver+0x900/0x900 [ 150.702526][ T28] really_probe+0xf20/0x20b0 [ 150.707113][ T28] ? kmsan_get_metadata+0x116/0x180 [ 150.712821][ T28] driver_probe_device+0x293/0x390 [ 150.717941][ T28] __device_attach_driver+0x63f/0x830 [ 150.723319][ T28] bus_for_each_drv+0x2ca/0x3f0 [ 150.728158][ T28] ? coredump_store+0xf0/0xf0 [ 150.732832][ T28] __device_attach+0x4e2/0x7f0 [ 150.737609][ T28] device_initial_probe+0x4a/0x60 [ 150.742636][ T28] bus_probe_device+0x177/0x3d0 [ 150.747480][ T28] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 150.753278][ T28] device_add+0x3b0e/0x40d0 [ 150.757806][ T28] usb_set_configuration+0x380f/0x3f10 [ 150.763262][ T28] ? usb_set_configuration+0xb41/0x3f10 [ 150.768826][ T28] usb_generic_driver_probe+0x138/0x300 [ 150.774376][ T28] ? usb_choose_configuration+0xe70/0xe70 [ 150.780083][ T28] usb_probe_device+0x311/0x490 [ 150.784926][ T28] ? usb_register_device_driver+0x540/0x540 [ 150.790808][ T28] really_probe+0xf20/0x20b0 [ 150.795392][ T28] ? kmsan_get_metadata+0x116/0x180 [ 150.800587][ T28] driver_probe_device+0x293/0x390 [ 150.805712][ T28] __device_attach_driver+0x63f/0x830 [ 150.811098][ T28] bus_for_each_drv+0x2ca/0x3f0 [ 150.815949][ T28] ? coredump_store+0xf0/0xf0 [ 150.820621][ T28] __device_attach+0x4e2/0x7f0 [ 150.825383][ T28] device_initial_probe+0x4a/0x60 [ 150.830395][ T28] bus_probe_device+0x177/0x3d0 [ 150.835252][ T28] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 150.841056][ T28] device_add+0x3b0e/0x40d0 [ 150.845574][ T28] usb_new_device+0x1bd4/0x2a30 [ 150.850429][ T28] hub_event+0x5e7b/0x8a70 [ 150.854873][ T28] ? kmsan_get_metadata+0x116/0x180 [ 150.860058][ T28] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 150.865850][ T28] ? led_work+0x7c0/0x7c0 [ 150.870172][ T28] process_one_work+0x1688/0x2140 [ 150.875220][ T28] worker_thread+0x10bc/0x2730 [ 150.879974][ T28] ? kmsan_get_metadata+0x116/0x180 [ 150.885183][ T28] kthread+0x551/0x590 [ 150.889239][ T28] ? process_one_work+0x2140/0x2140 [ 150.894427][ T28] ? kthread_blkcg+0x110/0x110 [ 150.899181][ T28] ret_from_fork+0x1f/0x30 [ 150.903585][ T28] Modules linked in: [ 150.907470][ T28] ---[ end trace 3e99f00ce7d00402 ]--- [ 150.912915][ T28] RIP: 0010:kmsan_internal_check_memory+0x3c0/0x3d0 [ 150.919488][ T28] Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b 48 c7 c7 b0 63 e1 91 31 c0 e8 f8 02 30 ff 0f 0b 0f 0b 0f 0b 0f 0b e8 c2 13 b0 0e 0f 0b <0f> 0b 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 83 ff [ 150.939076][ T28] RSP: 0018:ffff88812d05a608 EFLAGS: 00010046 [ 150.945127][ T28] RAX: 0000000000000002 RBX: 000000000511001e RCX: 000000000511001e [ 150.953086][ T28] RDX: 0000000000000000 RSI: 00000000000004a0 RDI: ffff88812d05a6ec [ 150.961042][ T28] RBP: ffff88812d05a6b0 R08: ffffea000000000f R09: ffff88812fffa000 [ 150.969004][ T28] R10: 0000000000000002 R11: ffff88812dfd3d00 R12: 0000000000000000 [ 150.976962][ T28] R13: 0000000000000001 R14: 0000000000000006 R15: 0000000000000001 [ 150.984923][ T28] FS: 0000000000000000(0000) GS:ffff88812fd00000(0000) knlGS:0000000000000000 [ 150.993835][ T28] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 151.000414][ T28] CR2: 00007f3f0529ef04 CR3: 00000000bb9a7000 CR4: 00000000001406e0 [ 151.008370][ T28] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 151.016336][ T28] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 151.024296][ T28] Kernel panic - not syncing: Fatal exception [ 151.030986][ T28] Kernel Offset: disabled [ 151.035321][ T28] Rebooting in 86400 seconds..