Warning: Permanently added '10.128.10.16' (ED25519) to the list of known hosts. executing program [ 317.769388][ T9] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 317.962571][ T9] usb 1-1: New USB device found, idVendor=0bda, idProduct=818a, bcdDevice=e2.d8 [ 317.971941][ T9] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 317.984487][ T9] usb 1-1: config 0 descriptor?? [ 318.193480][ T9] rtl8192cu: Chip version 0x10 executing program [ 318.610521][ T9] usb 1-1: reg 0x0, usbctrl_vendorreq TimeOut! status:0xffffffb9 value=0x69 reqtype=0x40 [ 318.634493][ T9] usb 1-1: reg 0x2, usbctrl_vendorreq TimeOut! status:0xffffffb9 value=0x0 reqtype=0xc0 [ 318.649954][ T9] usb 1-1: reg 0x2, usbctrl_vendorreq TimeOut! status:0xffffffb9 value=0x1000 reqtype=0x40 [ 318.663895][ T9] usb 1-1: reg 0x8, usbctrl_vendorreq TimeOut! status:0xffffffb9 value=0x0 reqtype=0xc0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 381.824937][ T2402] udevd[2402]: worker [2504] /devices/platform/dummy_hcd.0/usb1/1-1 is taking a long time executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 502.217299][ T2402] udevd[2402]: worker [2504] /devices/platform/dummy_hcd.0/usb1/1-1 timeout; kill it [ 502.227962][ T2402] udevd[2402]: seq 4110 '/devices/platform/dummy_hcd.0/usb1/1-1' killed executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 573.549093][ T30] INFO: task udevd:2504 blocked for more than 143 seconds. [ 573.556491][ T30] Not tainted 6.10.0-rc6-syzkaller-00108-g179264157bba #0 [ 573.564251][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 573.573003][ T30] task:udevd state:D stack:28144 pid:2504 tgid:2504 ppid:2402 flags:0x00000006 [ 573.583304][ T30] Call Trace: [ 573.586625][ T30] [ 573.589653][ T30] __schedule+0xca6/0x3170 [ 573.594173][ T30] ? __pfx___schedule+0x10/0x10 [ 573.599132][ T30] ? schedule+0x298/0x350 [ 573.603532][ T30] ? __pfx_lock_release+0x10/0x10 [ 573.608631][ T30] ? __mutex_lock+0x5b3/0x9c0 [ 573.613654][ T30] ? __mutex_trylock_common+0x78/0x250 [ 573.619240][ T30] schedule+0xe7/0x350 [ 573.623370][ T30] schedule_preempt_disabled+0x13/0x30 [ 573.628896][ T30] __mutex_lock+0x5b8/0x9c0 [ 573.633533][ T30] ? uevent_show+0x188/0x3b0 [ 573.638191][ T30] ? __pfx___mutex_lock+0x10/0x10 [ 573.643345][ T30] ? uevent_show+0x188/0x3b0 [ 573.647997][ T30] uevent_show+0x188/0x3b0 [ 573.652535][ T30] ? __pfx_uevent_show+0x10/0x10 [ 573.657534][ T30] dev_attr_show+0x53/0xe0 [ 573.662067][ T30] ? __pfx_dev_attr_show+0x10/0x10 [ 573.667247][ T30] sysfs_kf_seq_show+0x23e/0x410 [ 573.672296][ T30] seq_read_iter+0x4fa/0x12c0 [ 573.677051][ T30] kernfs_fop_read_iter+0x41a/0x590 [ 573.682346][ T30] vfs_read+0x869/0xbd0 [ 573.686581][ T30] ? __pfx_vfs_read+0x10/0x10 [ 573.691382][ T30] ? __pfx___do_sys_newfstatat+0x10/0x10 [ 573.697088][ T30] ? __pfx_do_sys_openat2+0x10/0x10 [ 573.702405][ T30] ? __fget_light+0x173/0x210 [ 573.707162][ T30] ksys_read+0x12f/0x260 [ 573.711529][ T30] ? __pfx_ksys_read+0x10/0x10 [ 573.716378][ T30] do_syscall_64+0xcd/0x250 [ 573.721166][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 573.727211][ T30] RIP: 0033:0x7f78d8e0bb6a [ 573.731731][ T30] RSP: 002b:00007ffea5d83228 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 573.740250][ T30] RAX: ffffffffffffffda RBX: 000055d038346fa0 RCX: 00007f78d8e0bb6a [ 573.748276][ T30] RDX: 0000000000001000 RSI: 000055d0383629d0 RDI: 0000000000000008 [ 573.756358][ T30] RBP: 000055d038346fa0 R08: 0000000000000008 R09: 0000000000000000 [ 573.764411][ T30] R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000000 [ 573.772503][ T30] R13: 0000000000003fff R14: 00007ffea5d83708 R15: 000000000000000a [ 573.780573][ T30] [ 573.783645][ T30] [ 573.783645][ T30] Showing all locks held in the system: [ 573.791452][ T30] 5 locks held by kworker/0:1/9: [ 573.796441][ T30] 1 lock held by khungtaskd/30: [ 573.801372][ T30] #0: ffffffff886b4360 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 [ 573.811460][ T30] 2 locks held by getty/2460: [ 573.816188][ T30] #0: ffff888107a870a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 [ 573.826096][ T30] #1: ffffc900000432f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 [ 573.836346][ T30] 4 locks held by udevd/2504: [ 573.841198][ T30] #0: ffff8881036bcc30 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xde/0x12c0 [ 573.850261][ T30] #1: ffff888104edb888 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x4d/0x240 [ 573.859635][ T30] #2: ffff888111c0ce18 (kn->active){.+.+}-{0:0}, at: kernfs_seq_start+0x71/0x240 [ 573.869022][ T30] #3: ffff8881053f3190 (&dev->mutex){....}-{3:3}, at: uevent_show+0x188/0x3b0 [ 573.878189][ T30] [ 573.880591][ T30] ============================================= [ 573.880591][ T30] [ 573.889085][ T30] NMI backtrace for cpu 1 [ 573.893461][ T30] CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc6-syzkaller-00108-g179264157bba #0 [ 573.903401][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 573.913501][ T30] Call Trace: [ 573.916904][ T30] [ 573.919897][ T30] dump_stack_lvl+0x116/0x1f0 [ 573.924622][ T30] nmi_cpu_backtrace+0x27b/0x390 [ 573.929626][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 573.935676][ T30] nmi_trigger_cpumask_backtrace+0x29c/0x300 [ 573.941817][ T30] watchdog+0xf86/0x1240 [ 573.946125][ T30] ? __pfx_watchdog+0x10/0x10 [ 573.950870][ T30] ? lockdep_hardirqs_on+0x7c/0x110 [ 573.956132][ T30] ? __kthread_parkme+0x148/0x220 [ 573.961222][ T30] ? __pfx_watchdog+0x10/0x10 [ 573.965999][ T30] kthread+0x2c1/0x3a0 [ 573.970135][ T30] ? _raw_spin_unlock_irq+0x23/0x50 [ 573.975565][ T30] ? __pfx_kthread+0x10/0x10 [ 573.980208][ T30] ret_from_fork+0x45/0x80 [ 573.984686][ T30] ? __pfx_kthread+0x10/0x10 [ 573.989338][ T30] ret_from_fork_asm+0x1a/0x30 [ 573.994175][ T30] [ 573.997295][ T30] Sending NMI from CPU 1 to CPUs 0: [ 574.002597][ C0] NMI backtrace for cpu 0 [ 574.002611][ C0] CPU: 0 PID: 2384 Comm: syslogd Not tainted 6.10.0-rc6-syzkaller-00108-g179264157bba #0 [ 574.002639][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 574.002654][ C0] RIP: 0010:__virt_addr_valid+0x276/0x580 [ 574.002700][ C0] Code: 48 c1 ea 03 80 3c 02 00 0f 85 04 03 00 00 49 8b 6c 24 08 be 08 00 00 00 48 8d 7d 10 e8 d3 48 8f 00 48 0f a3 5d 10 40 0f 92 c5 c5 e0 3c 00 e8 b0 07 7c 05 31 ff 89 c3 89 c6 e8 b5 db 3c 00 85 [ 574.002725][ C0] RSP: 0018:ffffc9000189f8a8 EFLAGS: 00000202 [ 574.002746][ C0] RAX: 0000000000000000 RBX: 000000011e23a000 RCX: ffffffff811662d9 [ 574.002763][ C0] RDX: ffff888115433a00 RSI: 0000000000000000 RDI: 0000000000000007 [ 574.002780][ C0] RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000 [ 574.002795][ C0] R10: 0000000000000008 R11: 0000000000000001 R12: ffff88823fff1260 [ 574.002812][ C0] R13: 0000000000000008 R14: 0000000000000000 R15: ffff8881067cdc80 [ 574.002828][ C0] FS: 00007f1f7a9f4380(0000) GS:ffff8881f6400000(0000) knlGS:0000000000000000 [ 574.002855][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 574.002873][ C0] CR2: 00007f4d18da06c0 CR3: 0000000115600000 CR4: 00000000003506f0 [ 574.002890][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 574.002905][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 574.002921][ C0] Call Trace: [ 574.002930][ C0] [ 574.002938][ C0] ? show_regs+0x8c/0xa0 [ 574.002980][ C0] ? nmi_cpu_backtrace+0x1d8/0x390 [ 574.003016][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 574.003054][ C0] ? nmi_handle+0x1a9/0x5c0 [ 574.003093][ C0] ? __virt_addr_valid+0x276/0x580 [ 574.003130][ C0] ? default_do_nmi+0x6a/0x160 [ 574.003157][ C0] ? exc_nmi+0x170/0x1e0 [ 574.003182][ C0] ? end_repeat_nmi+0xf/0x53 [ 574.003212][ C0] ? __virt_addr_valid+0x229/0x580 [ 574.003250][ C0] ? __virt_addr_valid+0x276/0x580 [ 574.003288][ C0] ? __virt_addr_valid+0x276/0x580 [ 574.003326][ C0] ? __virt_addr_valid+0x276/0x580 [ 574.003363][ C0] [ 574.003371][ C0] [ 574.003379][ C0] __check_object_size+0x139/0x720 [ 574.003419][ C0] simple_copy_to_iter+0x41/0x80 [ 574.003449][ C0] __skb_datagram_iter+0x124/0x880 [ 574.003479][ C0] ? __pfx_sk_busy_loop_end+0x10/0x10 [ 574.003506][ C0] ? __pfx_simple_copy_to_iter+0x10/0x10 [ 574.003535][ C0] ? __pfx___lock_acquire+0x10/0x10 [ 574.003573][ C0] skb_copy_datagram_iter+0xac/0x250 [ 574.003605][ C0] __unix_dgram_recvmsg+0x45b/0xdd0 [ 574.003641][ C0] ? __pfx___unix_dgram_recvmsg+0x10/0x10 [ 574.003675][ C0] ? __pfx___might_resched+0x10/0x10 [ 574.003704][ C0] ? aa_sk_perm+0x2f5/0xb40 [ 574.003748][ C0] unix_dgram_recvmsg+0xd0/0x110 [ 574.003782][ C0] sock_recvmsg+0x1f6/0x250 [ 574.003808][ C0] sock_read_iter+0x2c7/0x3c0 [ 574.003834][ C0] ? __pfx_sock_read_iter+0x10/0x10 [ 574.003863][ C0] ? security_file_permission+0x98/0xc0 [ 574.003891][ C0] vfs_read+0xa39/0xbd0 [ 574.003931][ C0] ? __pfx_vfs_read+0x10/0x10 [ 574.003975][ C0] ? ktime_get+0xfb/0x1a0 [ 574.004009][ C0] ? __fget_light+0x173/0x210 [ 574.004046][ C0] ksys_read+0x1f8/0x260 [ 574.004084][ C0] ? __pfx_ksys_read+0x10/0x10 [ 574.004125][ C0] do_syscall_64+0xcd/0x250 [ 574.004164][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 574.004192][ C0] RIP: 0033:0x7f1f7ab48b6a [ 574.004210][ C0] Code: 00 3d 00 00 41 00 75 0d 50 48 8d 3d 2d 08 0a 00 e8 ea 7d 01 00 31 c0 e9 07 ff ff ff 64 8b 04 25 18 00 00 00 85 c0 75 1b 0f 05 <48> 3d 00 f0 ff ff 76 6c 48 8b 15 8f a2 0d 00 f7 d8 64 89 02 48 83 [ 574.004235][ C0] RSP: 002b:00007ffcabeae968 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 574.004257][ C0] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f1f7ab48b6a [ 574.004275][ C0] RDX: 00000000000000ff RSI: 0000556a0f394950 RDI: 0000000000000000 [ 574.004291][ C0] RBP: 0000556a0f394910 R08: 0000000000000001 R09: 0000000000000000 [ 574.004307][ C0] R10: 00007f1f7ace73a3 R11: 0000000000000246 R12: 0000556a0f39499d [ 574.004323][ C0] R13: 0000556a0f394950 R14: 0000000000000000 R15: 00007f1f7ad2ba80 [ 574.004344][ C0] [ 574.004353][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.762 msecs [ 574.004596][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 574.421639][ T30] CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc6-syzkaller-00108-g179264157bba #0 [ 574.431601][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 574.441711][ T30] Call Trace: [ 574.445029][ T30] [ 574.447993][ T30] dump_stack_lvl+0x3d/0x1f0 [ 574.452702][ T30] panic+0x6f5/0x7a0 [ 574.456672][ T30] ? __pfx_panic+0x10/0x10 [ 574.461136][ T30] ? __pfx__printk+0x10/0x10 [ 574.465791][ T30] ? irq_work_claim+0x76/0xa0 [ 574.470508][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 574.476524][ T30] ? irq_work_queue+0x2a/0x80 [ 574.481235][ T30] ? watchdog+0xd3d/0x1240 [ 574.485685][ T30] ? watchdog+0xd30/0x1240 [ 574.490169][ T30] watchdog+0xd4e/0x1240 [ 574.494458][ T30] ? __pfx_watchdog+0x10/0x10 [ 574.499183][ T30] ? lockdep_hardirqs_on+0x7c/0x110 [ 574.504503][ T30] ? __kthread_parkme+0x148/0x220 [ 574.509649][ T30] ? __pfx_watchdog+0x10/0x10 [ 574.514599][ T30] kthread+0x2c1/0x3a0 [ 574.518705][ T30] ? _raw_spin_unlock_irq+0x23/0x50 [ 574.523935][ T30] ? __pfx_kthread+0x10/0x10 [ 574.528697][ T30] ret_from_fork+0x45/0x80 [ 574.533171][ T30] ? __pfx_kthread+0x10/0x10 [ 574.537828][ T30] ret_from_fork_asm+0x1a/0x30 [ 574.542643][ T30] [ 574.546000][ T30] Kernel Offset: disabled [ 574.550430][ T30] Rebooting in 86400 seconds..