[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.48' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 71.919878][ T8416] vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) [ 71.927215][ T8416] vhci_hcd vhci_hcd.0: devid(0) speed(4) speed_str(wireless) [ 71.934045][ T8420] vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3) [ 71.941118][ T8420] vhci_hcd vhci_hcd.0: devid(0) speed(4) speed_str(wireless) [ 71.953906][ T8421] vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) [ 71.960495][ T8421] vhci_hcd vhci_hcd.0: devid(0) speed(4) speed_str(wireless) [ 71.972987][ T8426] vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) [ 71.973451][ T8424] vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) [ 71.979967][ T8426] vhci_hcd vhci_hcd.0: devid(0) speed(4) speed_str(wireless) [ 71.986461][ T8424] vhci_hcd vhci_hcd.0: devid(0) speed(4) speed_str(wireless) [ 72.002310][ T8428] vhci_hcd: vhci_tx_loop: thread starting 00000000f69a4991 with sock 000000002d1f7fe3 [ 72.012519][ T8425] vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) executing program [ 72.016126][ T8427] vhci_hcd: connection closed [ 72.019070][ T8425] vhci_hcd vhci_hcd.0: devid(0) speed(4) speed_str(wireless) [ 72.035726][ T8432] vhci_hcd: vhci_tx_loop: thread starting 00000000aea86f5e with sock 00000000cc4e2889 [ 72.048039][ T8431] vhci_hcd: connection closed [ 72.048805][ T8430] vhci_hcd: vhci_tx_loop: thread starting 00000000cf1bcab7 with sock 00000000640d6617 [ 72.050693][ T8] vhci_hcd: vhci_shutdown_connection: stop rx 0000000015b5c6bd executing program executing program executing program [ 72.070683][ T8436] vhci_hcd: vhci_tx_loop: thread starting 00000000fc0b1592 with sock 00000000928a047b [ 72.083296][ T8429] vhci_hcd: connection closed [ 72.085314][ T8435] vhci_hcd: connection closed [ 72.091296][ T8434] vhci_hcd vhci_hcd.0: port 0 already used [ 72.108116][ T8441] vhci_hcd vhci_hcd.0: port 0 already used [ 72.114067][ T8442] vhci_hcd vhci_hcd.0: port 0 already used executing program [ 72.115200][ T8443] vhci_hcd vhci_hcd.0: port 0 already used [ 72.124643][ T8] vhci_hcd: vhci_shutdown_connection: stop tx 00000000aea86f5e [ 72.143576][ T8432] vhci_hcd: vhci_tx_loop: thread exiting 00000000aea86f5e with sock 00000000cc4e2889 [ 72.155828][ T8445] vhci_hcd: vhci_tx_loop: thread starting 00000000a5483c35 with sock 0000000038ea7ced [ 72.165606][ T8444] vhci_hcd: connection closed executing program executing program executing program [ 72.169220][ T8448] vhci_hcd vhci_hcd.0: port 0 already used [ 72.184209][ T8] vhci_hcd: stop threads [ 72.192594][ T8424] ------------[ cut here ]------------ [ 72.193798][ T8453] vhci_hcd vhci_hcd.0: port 0 already used [ 72.202241][ T8452] vhci_hcd vhci_hcd.0: port 0 already used [ 72.204598][ T2941] vhci_hcd: vhci_device speed not set executing program executing program [ 72.216735][ T8] vhci_hcd: vhci_shutdown_connection: close sock 00000000cc4e2889 [ 72.224200][ T8424] kernel BUG at drivers/usb/usbip/vhci_sysfs.c:395! [ 72.226136][ T8438] vhci_hcd: vhci_device speed not set [ 72.247494][ T8458] vhci_hcd vhci_hcd.0: port 0 already used [ 72.253054][ T8] vhci_hcd: release socket [ 72.257293][ T8457] vhci_hcd vhci_hcd.0: port 0 already used [ 72.261182][ T8461] vhci_hcd vhci_hcd.0: port 0 already used executing program [ 72.266393][ T3146] vhci_hcd: vhci_device speed not set [ 72.271072][ T8] vhci_hcd: disconnect device [ 72.283275][ T8424] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 72.284160][ T8] vhci_hcd: vhci_shutdown_connection: stop rx 00000000627cd07a [ 72.289381][ T8424] CPU: 0 PID: 8424 Comm: syz-executor757 Not tainted 5.11.0-rc6-next-20210205-syzkaller #0 [ 72.289406][ T8424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.289418][ T8424] RIP: 0010:attach_store.cold+0x2cc/0x396 [ 72.289467][ T8424] Code: e8 f1 0d d0 f8 4c 8b 65 70 48 c7 c7 00 f0 ff ff 4c 89 e6 e8 5e 51 8c f8 49 81 fc 00 f0 ff ff 0f 86 b1 00 00 00 e8 5c 49 8c f8 <0f> 0b 89 14 24 e8 22 0e d0 f8 8b 14 24 e9 c1 fd ff ff 89 0c 24 e8 [ 72.289487][ T8424] RSP: 0018:ffffc90001a37b58 EFLAGS: 00010293 [ 72.289511][ T8424] RAX: 0000000000000000 RBX: fffffffffffffffc RCX: 0000000000000000 [ 72.289525][ T8424] RDX: ffff888020455400 RSI: ffffffff88e6a384 RDI: 0000000000000003 [ 72.289539][ T8424] RBP: ffff88801c83c408 R08: fffffffffffff000 R09: ffff888013a17927 executing program [ 72.289554][ T8424] R10: ffffffff88e6a41c R11: 0000000000000001 R12: fffffffffffffffc [ 72.289569][ T8424] R13: ffff88801c83c478 R14: ffff88801c83c420 R15: ffff888025d2aa00 [ 72.289584][ T8424] FS: 00007f1efb061700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 72.289606][ T8424] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.299932][ T8463] vhci_hcd vhci_hcd.0: port 0 already used [ 72.307110][ T8424] CR2: 00007ffdd2162498 CR3: 00000000172cb000 CR4: 00000000001506f0 executing program executing program executing program [ 72.307127][ T8424] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.307139][ T8424] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.307153][ T8424] Call Trace: [ 72.307161][ T8424] ? status_show+0x570/0x570 [ 72.307190][ T8424] ? status_show+0x570/0x570 [ 72.307208][ T8424] ? sysfs_file_ops+0x1c0/0x1c0 [ 72.307230][ T8424] dev_attr_store+0x50/0x80 [ 72.317510][ T2941] usb 19-1: new full-speed USB device number 2 using vhci_hcd [ 72.323069][ T8424] ? component_del+0x540/0x540 executing program executing program executing program [ 72.323097][ T8424] sysfs_kf_write+0x110/0x160 [ 72.343270][ T8438] usb 17-1: new full-speed USB device number 2 using vhci_hcd [ 72.348837][ T8424] kernfs_fop_write_iter+0x342/0x500 [ 72.348869][ T8424] new_sync_write+0x426/0x650 [ 72.356928][ T19] vhci_hcd: vhci_device speed not set [ 72.364879][ T8424] ? new_sync_read+0x6e0/0x6e0 [ 72.373012][ T4857] vhci_hcd: vhci_device speed not set [ 72.380874][ T8424] ? lock_release+0x710/0x710 [ 72.391003][ T8438] usb 17-1: enqueue for inactive port 0 executing program [ 72.398560][ T8424] ? apparmor_file_permission+0x26e/0x4e0 [ 72.406868][ T8] vhci_hcd: vhci_shutdown_connection: stop tx 00000000cf1bcab7 [ 72.412190][ T8424] vfs_write+0x791/0xa30 [ 72.412221][ T8424] ksys_write+0x12d/0x250 [ 72.420698][ T8428] vhci_hcd: sendmsg failed!, ret=-32 for 48 [ 72.428168][ T8424] ? __ia32_sys_read+0xb0/0xb0 [ 72.428198][ T8424] ? syscall_enter_from_user_mode+0x1d/0x50 [ 72.428225][ T8424] do_syscall_64+0x2d/0x70 [ 72.428245][ T8424] entry_SYSCALL_64_after_hwframe+0x44/0xa9 executing program executing program [ 72.437853][ T8428] vhci_hcd: vhci_tx_loop: thread exiting 00000000f69a4991 with sock 000000002d1f7fe3 [ 72.439587][ T8424] RIP: 0033:0x406acf [ 72.439607][ T8424] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 cc fd ff ff 48 [ 72.439628][ T8424] RSP: 002b:00007f1efb060c60 EFLAGS: 00000293 [ 72.447657][ T8466] vhci_hcd vhci_hcd.0: port 0 already used [ 72.449057][ T8424] ORIG_RAX: 0000000000000001 executing program executing program executing program executing program [ 72.449067][ T8424] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000000406acf [ 72.449082][ T8424] RDX: 0000000000000008 RSI: 00007f1efb060cb0 RDI: 0000000000000005 [ 72.449096][ T8424] RBP: 0000000000000005 R08: 0000000000000000 R09: 00007f1efb060c00 [ 72.466270][ T8469] vhci_hcd vhci_hcd.0: port 0 already used [ 72.467372][ T8424] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f1efb060cb0 [ 72.467388][ T8424] R13: 0000000000000000 R14: 00007f1efb061300 R15: 0000000000022000 [ 72.467409][ T8424] Modules linked in: [ 72.477210][ T19] usb 9-1: new full-speed USB device number 2 using vhci_hcd [ 72.478901][ T8424] [ 72.480273][ T3146] usb 13-1: new full-speed USB device number 2 using vhci_hcd [ 72.487544][ T8430] vhci_hcd: vhci_tx_loop: thread exiting 00000000cf1bcab7 with sock 00000000640d6617 [ 72.501845][ T8465] vhci_hcd vhci_hcd.0: port 0 already used [ 72.503538][ T4857] usb 15-1: new full-speed USB device number 2 using vhci_hcd [ 72.511874][ T8474] vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) executing program executing program executing program executing program executing program executing program [ 72.514062][ T8476] vhci_hcd vhci_hcd.0: port 0 already used [ 72.517912][ T8474] vhci_hcd vhci_hcd.0: devid(0) speed(4) speed_str(wireless) [ 72.518478][ T8475] vhci_hcd vhci_hcd.0: port 0 already used [ 72.523917][ T8438] vhci_hcd: vhci_device speed not set [ 72.532732][ T8436] vhci_hcd: sendmsg failed!, ret=-32 for 48 [ 72.538366][ T8] vhci_hcd: stop threads [ 72.541787][ T8445] vhci_hcd: sendmsg failed!, ret=-32 for 48 [ 72.546705][ T8] vhci_hcd: vhci_shutdown_connection: close sock 00000000640d6617 executing program executing program executing program [ 72.552302][ T8436] vhci_hcd: vhci_tx_loop: thread exiting 00000000fc0b1592 with sock 00000000928a047b [ 72.558969][ T8] vhci_hcd: release socket [ 72.565685][ T8471] vhci_hcd vhci_hcd.0: port 0 already used [ 72.568828][ T8] vhci_hcd: disconnect device [ 72.580973][ T8445] vhci_hcd: vhci_tx_loop: thread exiting 00000000a5483c35 with sock 0000000038ea7ced [ 72.589815][ T8478] vhci_hcd vhci_hcd.0: port 0 already used [ 72.610942][ T8481] vhci_hcd: vhci_tx_loop: thread starting 00000000f3b5904c with sock 00000000d6f28284 executing program [ 72.617618][ T8483] vhci_hcd vhci_hcd.0: port 0 already used [ 72.619879][ T8480] vhci_hcd: connection closed [ 72.630711][ T8] vhci_hcd: vhci_shutdown_connection: stop rx 00000000a6e27b06 [ 72.638371][ T8484] vhci_hcd vhci_hcd.0: port 0 already used [ 72.642710][ T8489] vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3) [ 72.647774][ T8487] vhci_hcd vhci_hcd.0: port 0 already used [ 72.653546][ T8489] vhci_hcd vhci_hcd.0: devid(0) speed(4) speed_str(wireless) [ 72.654835][ T8] vhci_hcd: vhci_shutdown_connection: stop tx 00000000fc0b1592 executing program executing program executing program executing program [ 72.668742][ T8491] vhci_hcd vhci_hcd.0: port 0 already used [ 72.671603][ T8493] vhci_hcd vhci_hcd.0: port 0 already used [ 72.698426][ T8] vhci_hcd: stop threads [ 72.711614][ T8492] vhci_hcd: connection closed [ 72.716814][ T8494] vhci_hcd: vhci_tx_loop: thread starting 00000000ed9743e0 with sock 00000000fa56a4fb [ 72.729229][ T8499] vhci_hcd vhci_hcd.0: port 0 already used [ 72.737060][ T8500] vhci_hcd vhci_hcd.0: port 0 already used [ 72.738772][ T8424] ---[ end trace cbe78a60e18e191c ]--- executing program [ 72.743602][ T8501] vhci_hcd vhci_hcd.0: port 0 already used [ 72.754631][ T8504] vhci_hcd vhci_hcd.0: port 0 already used [ 72.758911][ T8502] vhci_hcd vhci_hcd.0: port 0 already used [ 72.759211][ T8424] RIP: 0010:attach_store.cold+0x2cc/0x396 [ 72.770806][ T8494] vhci_hcd: sendmsg failed!, ret=-32 for 48 [ 72.778086][ T8506] vhci_hcd vhci_hcd.0: port 0 already used [ 72.805988][ T8494] vhci_hcd: vhci_tx_loop: thread exiting 00000000ed9743e0 with sock 00000000fa56a4fb [ 72.814342][ T8] vhci_hcd: vhci_shutdown_connection: close sock 00000000928a047b executing program executing program executing program executing program [ 72.828069][ T8510] vhci_hcd vhci_hcd.0: port 0 already used [ 72.832365][ T8424] Code: e8 f1 0d d0 f8 4c 8b 65 70 48 c7 c7 00 f0 ff ff 4c 89 e6 e8 5e 51 8c f8 49 81 fc 00 f0 ff ff 0f 86 b1 00 00 00 e8 5c 49 8c f8 <0f> 0b 89 14 24 e8 22 0e d0 f8 8b 14 24 e9 c1 fd ff ff 89 0c 24 e8 [ 72.834862][ T8511] vhci_hcd vhci_hcd.0: port 0 already used [ 72.843815][ T8514] vhci_hcd vhci_hcd.0: port 0 already used [ 72.849102][ T8512] vhci_hcd vhci_hcd.0: port 0 already used [ 72.854881][ T8438] vhci_hcd: vhci_device speed not set executing program executing program executing program executing program [ 72.891029][ T8] vhci_hcd: release socket [ 72.898964][ T8424] RSP: 0018:ffffc90001a37b58 EFLAGS: 00010293 [ 72.913213][ T8519] vhci_hcd vhci_hcd.0: port 0 already used [ 72.921586][ T8522] vhci_hcd vhci_hcd.0: port 0 already used [ 72.927299][ T8520] vhci_hcd vhci_hcd.0: port 0 already used [ 72.929883][ T8521] vhci_hcd vhci_hcd.0: port 0 already used [ 72.935359][ T8] vhci_hcd: disconnect device [ 72.947992][ T8525] vhci_hcd vhci_hcd.0: port 0 already used [ 72.969288][ T8528] vhci_hcd vhci_hcd.0: port 0 already used [ 72.981790][ T8424] executing program [ 72.988978][ T8] vhci_hcd: vhci_shutdown_connection: stop rx 00000000f67173dc [ 73.004149][ T8526] vhci_hcd vhci_hcd.0: port 0 already used [ 73.011237][ T8531] vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) [ 73.014716][ T8532] vhci_hcd vhci_hcd.0: port 0 already used [ 73.020120][ T8531] vhci_hcd vhci_hcd.0: devid(0) speed(4) speed_str(wireless) [ 73.035376][ T8534] vhci_hcd: connection closed [ 73.039999][ T8424] RAX: 0000000000000000 RBX: fffffffffffffffc RCX: 0000000000000000 executing program executing program executing program executing program executing program [ 73.043308][ T8536] vhci_hcd: vhci_tx_loop: thread starting 0000000051a5dc2b with sock 00000000108b99a3 [ 73.054540][ T8424] RDX: ffff888020455400 RSI: ffffffff88e6a384 RDI: 0000000000000003 [ 73.063833][ T8535] vhci_hcd vhci_hcd.0: port 0 already used [ 73.073488][ T8424] RBP: ffff88801c83c408 R08: fffffffffffff000 R09: ffff888013a17927 [ 73.079226][ T8538] vhci_hcd vhci_hcd.0: port 0 already used [ 73.087923][ T8542] vhci_hcd vhci_hcd.0: port 0 already used [ 73.092091][ T8] vhci_hcd: vhci_shutdown_connection: stop tx 00000000f69a4991 executing program executing program [ 73.099627][ T8544] vhci_hcd vhci_hcd.0: port 0 already used [ 73.111561][ T8543] vhci_hcd vhci_hcd.0: port 0 already used [ 73.112154][ T8424] R10: ffffffff88e6a41c R11: 0000000000000001 R12: fffffffffffffffc [ 73.119506][ T8] vhci_hcd: stop threads [ 73.128142][ T8424] R13: ffff88801c83c478 R14: ffff88801c83c420 R15: ffff888025d2aa00 [ 73.139423][ T8] vhci_hcd: vhci_shutdown_connection: close sock 000000002d1f7fe3 [ 73.154453][ T8550] vhci_hcd vhci_hcd.0: port 0 already used [ 73.165620][ T8549] vhci_hcd vhci_hcd.0: port 0 already used executing program executing program executing program [ 73.168161][ T8424] FS: 00007f1efb061700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 73.176427][ T8551] vhci_hcd vhci_hcd.0: port 0 already used [ 73.182630][ T8554] vhci_hcd vhci_hcd.0: port 0 already used [ 73.193529][ T8553] vhci_hcd vhci_hcd.0: port 0 already used [ 73.196814][ T8424] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.203636][ T8] vhci_hcd: release socket [ 73.216275][ T8558] vhci_hcd vhci_hcd.0: port 0 already used [ 73.228999][ T8557] vhci_hcd vhci_hcd.0: port 0 already used executing program executing program executing program [ 73.239751][ T8424] CR2: 00000000004b0124 CR3: 00000000172cb000 CR4: 00000000001506e0 [ 73.248875][ T8560] vhci_hcd vhci_hcd.0: port 0 already used [ 73.256175][ T8563] vhci_hcd vhci_hcd.0: port 0 already used [ 73.262407][ T8564] vhci_hcd vhci_hcd.0: port 0 already used [ 73.265237][ T8424] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.277707][ T8] vhci_hcd: disconnect device [ 73.284096][ T8566] vhci_hcd vhci_hcd.0: port 0 already used [ 73.300223][ T8569] vhci_hcd vhci_hcd.0: port 0 already used executing program executing program [ 73.307397][ T8424] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.312654][ T8] vhci_hcd: vhci_shutdown_connection: stop rx 000000002a5dd973 [ 73.317339][ T8438] vhci_hcd: vhci_device speed not set [ 73.326710][ T8570] vhci_hcd vhci_hcd.0: port 0 already used [ 73.335921][ T8573] vhci_hcd vhci_hcd.0: port 0 already used [ 73.342622][ T8] vhci_hcd: vhci_shutdown_connection: stop tx 00000000a5483c35 [ 73.346725][ T8574] vhci_hcd vhci_hcd.0: port 0 already used [ 73.354925][ T8] vhci_hcd: stop threads [ 73.357770][ T8424] Kernel panic - not syncing: Fatal exception [ 73.369832][ T8] vhci_hcd: vhci_shutdown_connection: close sock 0000000038ea7ced [ 73.371602][ T8424] Kernel Offset: disabled [ 73.400158][ T8424] Rebooting in 86400 seconds..