Warning: Permanently added '10.128.10.17' (ECDSA) to the list of known hosts. executing program [ 479.716982][ T26] audit: type=1400 audit(1633703412.216:8): avc: denied { execmem } for pid=6546 comm="syz-executor323" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 716.166970][ T27] INFO: task syz-executor323:6547 blocked for more than 143 seconds. [ 716.175186][ T27] Not tainted 5.15.0-rc4-syzkaller #0 [ 716.182958][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 716.191720][ T27] task:syz-executor323 state:D stack:26760 pid: 6547 ppid: 6546 flags:0x00000004 [ 716.201157][ T27] Call Trace: [ 716.204556][ T27] __schedule+0x940/0x26f0 [ 716.209293][ T27] ? io_schedule_timeout+0x140/0x140 [ 716.214786][ T27] schedule+0xd3/0x270 [ 716.218950][ T27] schedule_timeout+0x1db/0x2a0 [ 716.224280][ T27] ? usleep_range+0x170/0x170 [ 716.229041][ T27] ? wait_for_completion_timeout+0x169/0x280 [ 716.235042][ T27] ? lock_downgrade+0x6e0/0x6e0 [ 716.240008][ T27] ? do_raw_spin_lock+0x120/0x2b0 [ 716.245102][ T27] ? rwlock_bug.part.0+0x90/0x90 [ 716.250109][ T27] ? _raw_spin_unlock_irq+0x1f/0x40 [ 716.255322][ T27] wait_for_completion_timeout+0x171/0x280 [ 716.261216][ T27] ? wait_for_completion+0x280/0x280 [ 716.266627][ T27] ? lockdep_init_map_type+0x2b3/0x7b0 [ 716.272175][ T27] usb_start_wait_urb+0x144/0x4c0 [ 716.277354][ T27] ? usb_api_blocking_completion+0xa0/0xa0 [ 716.283175][ T27] ? memset+0x20/0x40 [ 716.287307][ T27] usb_bulk_msg+0x226/0x550 [ 716.291839][ T27] do_proc_bulk+0x3a3/0x750 [ 716.296419][ T27] ? processcompl_compat+0x680/0x680 [ 716.301806][ T27] usbdev_ioctl+0x586/0x36c0 [ 716.306417][ T27] ? do_proc_control+0x9f0/0x9f0 [ 716.311420][ T27] ? __sanitizer_cov_trace_switch+0x63/0xf0 [ 716.317482][ T27] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 716.323730][ T27] ? do_vfs_ioctl+0x132/0x15d0 [ 716.328622][ T27] ? vfs_fileattr_set+0xbe0/0xbe0 [ 716.333663][ T27] ? selinux_file_ioctl+0x424/0x5d0 [ 716.338995][ T27] ? selinux_file_ioctl+0x10f/0x5d0 [ 716.344200][ T27] ? selinux_inode_getsecctx+0x90/0x90 [ 716.349862][ T27] ? send_mds_reconnect+0x3dc/0x12a4 [ 716.355247][ T27] ? lock_downgrade+0x6e0/0x6e0 [ 716.360216][ T27] ? security_file_ioctl+0x5c/0xb0 [ 716.365498][ T27] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 716.372009][ T27] ? do_proc_control+0x9f0/0x9f0 [ 716.377055][ T27] __x64_sys_ioctl+0x193/0x200 [ 716.381839][ T27] do_syscall_64+0x35/0xb0 [ 716.386283][ T27] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 716.392293][ T27] RIP: 0033:0x7f341de923a9 [ 716.396816][ T27] RSP: 002b:00007ffce9d5ab98 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 716.405345][ T27] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f341de923a9 [ 716.413388][ T27] RDX: 00000000200002c0 RSI: 00000000c0185502 RDI: 0000000000000003 [ 716.421475][ T27] RBP: 0000000000000000 R08: 00007ffce9d5ad38 R09: 00007ffce9d5ad38 [ 716.429523][ T27] R10: 00007ffce9d5a610 R11: 0000000000000246 R12: 00007f341de516c0 [ 716.437719][ T27] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 716.445834][ T27] [ 716.445834][ T27] Showing all locks held in the system: [ 716.453954][ T27] 1 lock held by khungtaskd/27: [ 716.459006][ T27] #0: ffffffff8b97d3e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 [ 716.469001][ T27] 1 lock held by in:imklog/6449: [ 716.473966][ T27] #0: ffff88801f8eab70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 [ 716.483270][ T27] [ 716.485598][ T27] ============================================= [ 716.485598][ T27] [ 716.494115][ T27] NMI backtrace for cpu 0 [ 716.498443][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.0-rc4-syzkaller #0 [ 716.506584][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 716.516626][ T27] Call Trace: [ 716.520052][ T27] dump_stack_lvl+0xcd/0x134 [ 716.524716][ T27] nmi_cpu_backtrace.cold+0x47/0x144 [ 716.530115][ T27] ? lapic_can_unplug_cpu+0x80/0x80 [ 716.535387][ T27] nmi_trigger_cpumask_backtrace+0x1ae/0x220 [ 716.541417][ T27] watchdog+0xc1d/0xf50 [ 716.545583][ T27] ? reset_hung_task_detector+0x30/0x30 [ 716.552094][ T27] kthread+0x3e5/0x4d0 [ 716.556244][ T27] ? set_kthread_struct+0x130/0x130 [ 716.561448][ T27] ret_from_fork+0x1f/0x30 [ 716.566018][ T27] Sending NMI from CPU 0 to CPUs 1: [ 716.571314][ C1] NMI backtrace for cpu 1 [ 716.571324][ C1] CPU: 1 PID: 2963 Comm: systemd-journal Not tainted 5.15.0-rc4-syzkaller #0 [ 716.571347][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 716.571359][ C1] RIP: 0010:check_preemption_disabled+0x1b/0x170 [ 716.571391][ C1] Code: 0f 1f 44 00 00 0f 0b e9 23 ff ff ff cc cc cc 41 56 41 55 49 89 f5 41 54 55 48 89 fd 53 0f 1f 44 00 00 65 44 8b 25 bd 37 cc 76 <65> 8b 1d 4e 92 cc 76 81 e3 ff ff ff 7f 31 ff 89 de 0f 1f 44 00 00 [ 716.571412][ C1] RSP: 0018:ffffc90002b67a50 EFLAGS: 00000046 [ 716.571429][ C1] RAX: 0000000000000007 RBX: 1ffff9200056cf52 RCX: 0000000000000000 [ 716.571443][ C1] RDX: 0000000000000000 RSI: ffffffff898be600 RDI: ffffffff89e3a2a0 [ 716.571457][ C1] RBP: ffffffff89e3a2a0 R08: 0000000000000000 R09: ffff8880b9d32a8b [ 716.571471][ C1] R10: ffffed10173a6551 R11: 0000000000086089 R12: 0000000000000001 [ 716.571484][ C1] R13: ffffffff898be600 R14: ffffffff904afe88 R15: 0000000000000000 [ 716.571499][ C1] FS: 00007f3e540f58c0(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 716.571518][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 716.571532][ C1] CR2: 00007f3e514d9000 CR3: 000000007ea5b000 CR4: 00000000003506e0 [ 716.571546][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 716.571559][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 716.571572][ C1] Call Trace: [ 716.571578][ C1] lock_acquire+0x170/0x510 [ 716.571601][ C1] ? lock_release+0x720/0x720 [ 716.571621][ C1] ? debug_check_no_obj_freed+0x20c/0x420 [ 716.571696][ C1] ? lock_downgrade+0x6e0/0x6e0 [ 716.571717][ C1] ? ___cache_free+0x4c6/0x610 [ 716.571739][ C1] ? kasan_quarantine_reduce+0x180/0x200 [ 716.571760][ C1] ? __kasan_slab_alloc+0x92/0xa0 [ 716.571785][ C1] ? kmem_cache_alloc+0x25f/0x540 [ 716.571807][ C1] ? prepare_creds+0x3f/0x7b0 [ 716.571837][ C1] ? do_faccessat+0x3f4/0x850 [ 716.571886][ C1] _raw_spin_lock_irqsave+0x39/0x50 [ 716.571911][ C1] ? debug_check_no_obj_freed+0xc7/0x420 [ 716.571936][ C1] debug_check_no_obj_freed+0xc7/0x420 [ 716.571961][ C1] ? free_tail_pages_check+0x180/0x2d0 [ 716.572002][ C1] free_pcp_prepare+0x24e/0x780 [ 716.572023][ C1] free_unref_page+0x19/0x690 [ 716.572044][ C1] slabs_destroy+0x89/0xc0 [ 716.572066][ C1] ___cache_free+0x4c6/0x610 [ 716.572091][ C1] ? qlist_free_all+0x9a/0x110 [ 716.572110][ C1] qlist_free_all+0x4e/0x110 [ 716.572129][ C1] kasan_quarantine_reduce+0x180/0x200 [ 716.572150][ C1] __kasan_slab_alloc+0x92/0xa0 [ 716.572175][ C1] kmem_cache_alloc+0x25f/0x540 [ 716.572197][ C1] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 716.572224][ C1] prepare_creds+0x3f/0x7b0 [ 716.572243][ C1] do_faccessat+0x3f4/0x850 [ 716.572266][ C1] ? stream_open+0x60/0x60 [ 716.572287][ C1] ? __secure_computing+0x104/0x360 [ 716.572312][ C1] do_syscall_64+0x35/0xb0 [ 716.572331][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 716.572358][ C1] RIP: 0033:0x7f3e533b09c7 [ 716.572374][ C1] Code: 83 c4 08 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d c8 d4 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 15 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 d4 2b 00 f7 d8 64 89 01 48 [ 716.572394][ C1] RSP: 002b:00007ffc44340c28 EFLAGS: 00000246 ORIG_RAX: 0000000000000015 [ 716.572414][ C1] RAX: ffffffffffffffda RBX: 00007ffc44343b40 RCX: 00007f3e533b09c7 [ 716.572428][ C1] RDX: 00007f3e53e21a00 RSI: 0000000000000000 RDI: 00005648140059a3 [ 716.572442][ C1] RBP: 00007ffc44340c60 R08: 0000000000000000 R09: 0000000000000000 [ 716.572455][ C1] R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000 [ 716.572468][ C1] R13: 0000000000000000 R14: 00007ffc44343b40 R15: 00007ffc44341150 [ 716.572485][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.171 msecs [ 716.573399][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 716.949059][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.0-rc4-syzkaller #0 [ 716.957220][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 716.967296][ T27] Call Trace: [ 716.970574][ T27] dump_stack_lvl+0xcd/0x134 [ 716.975202][ T27] panic+0x2b0/0x6dd [ 716.979101][ T27] ? __warn_printk+0xf3/0xf3 [ 716.983691][ T27] ? lapic_can_unplug_cpu+0x80/0x80 [ 716.988897][ T27] ? preempt_schedule_thunk+0x16/0x18 [ 716.994272][ T27] ? nmi_trigger_cpumask_backtrace+0x191/0x220 [ 717.000439][ T27] ? watchdog.cold+0x130/0x158 [ 717.006438][ T27] watchdog.cold+0x141/0x158 [ 717.011037][ T27] ? reset_hung_task_detector+0x30/0x30 [ 717.016672][ T27] kthread+0x3e5/0x4d0 [ 717.020745][ T27] ? set_kthread_struct+0x130/0x130 [ 717.025947][ T27] ret_from_fork+0x1f/0x30 [ 717.030813][ T27] Kernel Offset: disabled [ 717.035136][ T27] Rebooting in 86400 seconds..