[ 18.870077][ T5531] 8021q: adding VLAN 0 to HW filter on device bond0 [ 18.873155][ T5531] eql: remember to turn off Van-Jacobson compression on your slave devices [ 18.932015][ T1895] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 18.935938][ T1522] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.15' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 40.464469][ T1522] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 40.704456][ T1522] usb 1-1: Using ep0 maxpacket: 16 [ 40.985296][ T1522] usb 1-1: New USB device found, idVendor=2040, idProduct=c0a0, bcdDevice= 9.80 [ 40.987472][ T1522] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 40.989188][ T1522] usb 1-1: Product: syz [ 40.990156][ T1522] usb 1-1: Manufacturer: syz [ 40.991125][ T1522] usb 1-1: SerialNumber: syz [ 40.995955][ T1522] usb 1-1: config 0 descriptor?? [ 41.038943][ T1522] smsusb:smsusb_probe: board id=8, interface number 0 [ 41.040476][ T1522] ------------[ cut here ]------------ [ 41.041633][ T1522] WARNING: CPU: 0 PID: 1522 at kernel/workqueue.c:3167 __flush_work+0x1b4/0x1c0 [ 41.043624][ T1522] Modules linked in: [ 41.044469][ T1522] CPU: 0 PID: 1522 Comm: kworker/0:2 Not tainted 6.3.0-rc1-syzkaller-gfe15c26ee26e #0 [ 41.046606][ T1522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 41.048882][ T1522] Workqueue: usb_hub_wq hub_event [ 41.050016][ T1522] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 41.051776][ T1522] pc : __flush_work+0x1b4/0x1c0 [ 41.052796][ T1522] lr : __flush_work+0x1b0/0x1c0 [ 41.053810][ T1522] sp : ffff800022526580 [ 41.054725][ T1522] x29: ffff8000225266b0 x28: 0000000000000000 x27: ffff8000225267e8 [ 41.056517][ T1522] x26: 0000000000000001 x25: 1fffe00018c1a41d x24: dfff800000000000 [ 41.058224][ T1522] x23: ffff7000044a4cb0 x22: ffff0000c60d2100 x21: ffff8000225265a0 [ 41.059938][ T1522] x20: 0000000000000001 x19: ffff0000c60d20e8 x18: ffff8000225264a0 [ 41.061682][ T1522] x17: 0000000000000000 x16: ffff8000123b0580 x15: ffff80000c3e8d34 [ 41.063556][ T1522] x14: ffff80000c3f3b50 x13: 0000000000000000 x12: 0000000000000001 [ 41.065315][ T1522] x11: ff80800008226e4c x10: 0000000000000000 x9 : ffff800008226e4c [ 41.067092][ T1522] x8 : ffff0000cc16b680 x7 : 0000000000000000 x6 : 000000000000003f [ 41.068901][ T1522] x5 : 0000000000000040 x4 : ffffffffffffffe0 x3 : 0000000000000000 [ 41.070723][ T1522] x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 [ 41.072406][ T1522] Call trace: [ 41.073204][ T1522] __flush_work+0x1b4/0x1c0 [ 41.074184][ T1522] __cancel_work_timer+0x3e4/0x540 [ 41.075330][ T1522] cancel_work_sync+0x24/0x38 [ 41.076387][ T1522] smsusb_term_device+0x98/0x1cc [ 41.077517][ T1522] smsusb_probe+0xcb8/0x1a0c [ 41.078508][ T1522] usb_probe_interface+0x500/0x984 [ 41.079705][ T1522] really_probe+0x394/0xa7c [ 41.080685][ T1522] __driver_probe_device+0x1bc/0x3f8 [ 41.081895][ T1522] driver_probe_device+0x78/0x330 [ 41.083054][ T1522] __device_attach_driver+0x2a8/0x4f4 [ 41.084344][ T1522] bus_for_each_drv+0x228/0x2bc [ 41.085415][ T1522] __device_attach+0x2b4/0x434 [ 41.086490][ T1522] device_initial_probe+0x24/0x34 [ 41.087625][ T1522] bus_probe_device+0x178/0x240 [ 41.088741][ T1522] device_add+0xabc/0xf58 [ 41.089711][ T1522] usb_set_configuration+0x15a4/0x1b1c [ 41.090996][ T1522] usb_generic_driver_probe+0x8c/0x148 [ 41.092179][ T1522] usb_probe_device+0x120/0x25c [ 41.093269][ T1522] really_probe+0x394/0xa7c [ 41.094301][ T1522] __driver_probe_device+0x1bc/0x3f8 [ 41.095485][ T1522] driver_probe_device+0x78/0x330 [ 41.096701][ T1522] __device_attach_driver+0x2a8/0x4f4 [ 41.097933][ T1522] bus_for_each_drv+0x228/0x2bc [ 41.098948][ T1522] __device_attach+0x2b4/0x434 [ 41.100033][ T1522] device_initial_probe+0x24/0x34 [ 41.101138][ T1522] bus_probe_device+0x178/0x240 [ 41.102230][ T1522] device_add+0xabc/0xf58 [ 41.103204][ T1522] usb_new_device+0x904/0x142c [ 41.104370][ T1522] hub_event+0x25e4/0x474c [ 41.105329][ T1522] process_one_work+0x868/0x16f4 [ 41.106479][ T1522] worker_thread+0x8e0/0xfe8 [ 41.107492][ T1522] kthread+0x24c/0x2d4 [ 41.108402][ T1522] ret_from_fork+0x10/0x20 [ 41.109423][ T1522] irq event stamp: 112674 [ 41.110441][ T1522] hardirqs last enabled at (112673): [] __cancel_work_timer+0x3a4/0x540 [ 41.112749][ T1522] hardirqs last disabled at (112674): [] el1_dbg+0x24/0x80 [ 41.114785][ T1522] softirqs last enabled at (109338): [] __do_softirq+0xd64/0xfbc [ 41.116893][ T1522] softirqs last disabled at (109327): [] ____do_softirq+0x14/0x20 [ 41.118988][ T1522] ---[ end trace 0000000000000000 ]--- [ 41.120436][ T1522] ------------[ cut here ]------------ [ 41.121659][ T1522] WARNING: CPU: 0 PID: 1522 at kernel/workqueue.c:3167 __flush_work+0x1b4/0x1c0 [ 41.123722][ T1522] Modules linked in: [ 41.124701][ T1522] CPU: 0 PID: 1522 Comm: kworker/0:2 Tainted: G W 6.3.0-rc1-syzkaller-gfe15c26ee26e #0 [ 41.127204][ T1522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 41.129523][ T1522] Workqueue: usb_hub_wq hub_event [ 41.130629][ T1522] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 41.132425][ T1522] pc : __flush_work+0x1b4/0x1c0 [ 41.133531][ T1522] lr : __flush_work+0x1b0/0x1c0 [ 41.134670][ T1522] sp : ffff800022526580 [ 41.135607][ T1522] x29: ffff8000225266b0 x28: 0000000000000000 x27: ffff8000225267e8 [ 41.137483][ T1522] x26: 0000000000000001 x25: 1fffe00018c1a441 x24: dfff800000000000 [ 41.139310][ T1522] x23: ffff7000044a4cb0 x22: ffff0000c60d2220 x21: ffff8000225265a0 [ 41.141226][ T1522] x20: 0000000000000001 x19: ffff0000c60d2208 x18: ffff8000225264a0 [ 41.143013][ T1522] x17: 0000000000000000 x16: ffff8000123b0580 x15: ffff80000c3e8d34 [ 41.144774][ T1522] x14: ffff80000c3f3b50 x13: 0000000000000000 x12: 0000000000000001 [ 41.146609][ T1522] x11: ff80800008226e4c x10: 0000000000000000 x9 : ffff800008226e4c [ 41.148397][ T1522] x8 : ffff0000cc16b680 x7 : 0000000000000000 x6 : 000000000000003f [ 41.150280][ T1522] x5 : 0000000000000040 x4 : ffffffffffffffe0 x3 : 0000000000000000 [ 41.152138][ T1522] x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 [ 41.154034][ T1522] Call trace: [ 41.154804][ T1522] __flush_work+0x1b4/0x1c0 [ 41.155902][ T1522] __cancel_work_timer+0x3e4/0x540 [ 41.157124][ T1522] cancel_work_sync+0x24/0x38 [ 41.158242][ T1522] smsusb_term_device+0x98/0x1cc [ 41.159344][ T1522] smsusb_probe+0xcb8/0x1a0c [ 41.160397][ T1522] usb_probe_interface+0x500/0x984 [ 41.161568][ T1522] really_probe+0x394/0xa7c [ 41.162608][ T1522] __driver_probe_device+0x1bc/0x3f8 [ 41.163783][ T1522] driver_probe_device+0x78/0x330 [ 41.164935][ T1522] __device_attach_driver+0x2a8/0x4f4 [ 41.166173][ T1522] bus_for_each_drv+0x228/0x2bc [ 41.167232][ T1522] __device_attach+0x2b4/0x434 [ 41.168280][ T1522] device_initial_probe+0x24/0x34 [ 41.169420][ T1522] bus_probe_device+0x178/0x240 [ 41.170497][ T1522] device_add+0xabc/0xf58 [ 41.171552][ T1522] usb_set_configuration+0x15a4/0x1b1c [ 41.172776][ T1522] usb_generic_driver_probe+0x8c/0x148 [ 41.174010][ T1522] usb_probe_device+0x120/0x25c [ 41.175125][ T1522] really_probe+0x394/0xa7c [ 41.176095][ T1522] __driver_probe_device+0x1bc/0x3f8 [ 41.177214][ T1522] driver_probe_device+0x78/0x330 [ 41.178361][ T1522] __device_attach_driver+0x2a8/0x4f4 [ 41.179597][ T1522] bus_for_each_drv+0x228/0x2bc [ 41.180654][ T1522] __device_attach+0x2b4/0x434 [ 41.181643][ T1522] device_initial_probe+0x24/0x34 [ 41.182827][ T1522] bus_probe_device+0x178/0x240 [ 41.183917][ T1522] device_add+0xabc/0xf58 [ 41.184864][ T1522] usb_new_device+0x904/0x142c [ 41.186001][ T1522] hub_event+0x25e4/0x474c [ 41.187003][ T1522] process_one_work+0x868/0x16f4 [ 41.188177][ T1522] worker_thread+0x8e0/0xfe8 [ 41.189224][ T1522] kthread+0x24c/0x2d4 [ 41.190145][ T1522] ret_from_fork+0x10/0x20 [ 41.191182][ T1522] irq event stamp: 112700 [ 41.192141][ T1522] hardirqs last enabled at (112699): [] __cancel_work_timer+0x3a4/0x540 [ 41.194399][ T1522] hardirqs last disabled at (112700): [] el1_dbg+0x24/0x80 [ 41.196470][ T1522] softirqs last enabled at (112692): [] __do_softirq+0xd64/0xfbc [ 41.198694][ T1522] softirqs last disabled at (112677): [] ____do_softirq+0x14/0x20 [ 41.200936][ T1522] ---[ end trace 0000000000000000 ]--- [ 41.202491][ T1522] ------------[ cut here ]------------ [ 41.203626][ T1522] WARNING: CPU: 0 PID: 1522 at kernel/workqueue.c:3167 __flush_work+0x1b4/0x1c0 [ 41.205662][ T1522] Modules linked in: [ 41.206549][ T1522] CPU: 0 PID: 1522 Comm: kworker/0:2 Tainted: G W 6.3.0-rc1-syzkaller-gfe15c26ee26e #0 [ 41.209124][ T1522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 41.211359][ T1522] Workqueue: usb_hub_wq hub_event [ 41.212526][ T1522] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 41.214322][ T1522] pc : __flush_work+0x1b4/0x1c0 [ 41.215398][ T1522] lr : __flush_work+0x1b0/0x1c0 [ 41.216480][ T1522] sp : ffff800022526580 [ 41.217421][ T1522] x29: ffff8000225266b0 x28: 0000000000000000 x27: ffff8000225267e8 [ 41.219219][ T1522] x26: 0000000000000001 x25: 1fffe00018c1a465 x24: dfff800000000000 [ 41.220902][ T1522] x23: ffff7000044a4cb0 x22: ffff0000c60d2340 x21: ffff8000225265a0 [ 41.222694][ T1522] x20: 0000000000000001 x19: ffff0000c60d2328 x18: ffff8000225264a0 [ 41.224561][ T1522] x17: 0000000000000000 x16: ffff8000123b0580 x15: ffff80000c3e8d34 [ 41.226428][ T1522] x14: ffff80000c3f3b50 x13: 0000000000000000 x12: 0000000000000001 [ 41.228305][ T1522] x11: ff80800008226e4c x10: 0000000000000000 x9 : ffff800008226e4c [ 41.230161][ T1522] x8 : ffff0000cc16b680 x7 : 0000000000000000 x6 : 000000000000003f [ 41.231971][ T1522] x5 : 0000000000000040 x4 : ffffffffffffffe0 x3 : 0000000000000000 [ 41.233707][ T1522] x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 [ 41.235435][ T1522] Call trace: [ 41.236212][ T1522] __flush_work+0x1b4/0x1c0 [ 41.237270][ T1522] __cancel_work_timer+