Warning: Permanently added '10.128.10.36' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 717.602313] INFO: task syz-executor219:8084 blocked for more than 140 seconds. [ 717.609759] Not tainted 4.19.211-syzkaller #0 [ 717.616146] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.624598] syz-executor219 D28096 8084 8082 0x00000004 [ 717.630219] Call Trace: [ 717.633463] __schedule+0x887/0x2040 [ 717.637178] ? io_schedule_timeout+0x140/0x140 [ 717.641741] ? _raw_spin_unlock+0x29/0x40 [ 717.646720] schedule+0x8d/0x1b0 [ 717.650093] fuse_wait_on_page_writeback.isra.0+0x11b/0x170 [ 717.656524] ? fuse_do_ioctl+0x1850/0x1850 [ 717.660751] ? wait_woken+0x250/0x250 [ 717.665310] ? fuse_writepage_locked+0xb63/0x1010 [ 717.670149] ? fuse_writepage_locked+0x1010/0x1010 [ 717.675847] fuse_launder_page+0xb6/0xe0 [ 717.679899] invalidate_inode_pages2_range+0x795/0x1110 [ 717.685954] ? clear_shadow_entry+0x170/0x170 [ 717.690442] ? fuse_file_alloc+0x1d9/0x270 [ 717.695274] ? do_raw_spin_unlock+0x171/0x230 [ 717.699763] ? _raw_spin_unlock+0x29/0x40 [ 717.704517] ? fuse_do_open+0x1c4/0x500 [ 717.708483] fuse_finish_open+0x2e2/0x590 [ 717.713445] fuse_open_common+0x254/0x2c0 [ 717.717597] do_dentry_open+0x4aa/0x1160 [ 717.721663] ? fuse_open_common+0x2c0/0x2c0 [ 717.727590] ? inode_permission.part.0+0x10c/0x450 [ 717.732890] ? chown_common+0x550/0x550 [ 717.736853] ? inode_permission+0x3d/0x140 [ 717.741076] path_openat+0x793/0x2df0 [ 717.745709] ? path_lookupat+0x8d0/0x8d0 [ 717.749762] ? mark_held_locks+0xf0/0xf0 [ 717.754493] ? mark_held_locks+0xf0/0xf0 [ 717.758543] do_filp_open+0x18c/0x3f0 [ 717.763064] ? may_open_dev+0xf0/0xf0 [ 717.766890] ? lock_downgrade+0x720/0x720 [ 717.771022] ? lock_acquire+0x170/0x3c0 [ 717.775927] ? __alloc_fd+0x34/0x570 [ 717.779727] ? do_raw_spin_unlock+0x171/0x230 [ 717.784833] ? _raw_spin_unlock+0x29/0x40 [ 717.788995] ? __alloc_fd+0x28d/0x570 [ 717.793511] do_sys_open+0x3b3/0x520 [ 717.797222] ? filp_open+0x70/0x70 [ 717.800745] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 717.806965] ? trace_hardirqs_off_caller+0x6e/0x210 [ 717.811977] ? do_syscall_64+0x21/0x620 [ 717.816558] do_syscall_64+0xf9/0x620 [ 717.820364] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 717.826275] RIP: 0033:0x7fba217474c9 [ 717.829973] Code: Bad RIP value. [ 717.833988] RSP: 002b:00007fba216f82f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 717.841687] RAX: ffffffffffffffda RBX: 00007fba217d84c0 RCX: 00007fba217474c9 [ 717.849631] RDX: 0000000000000000 RSI: 0000000000000600 RDI: 0000000020000100 [ 717.857332] RBP: 00007fba217a5164 R08: 0000000000000000 R09: 0000000000000000 [ 717.864987] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 717.872747] R13: 00007fba217a1158 R14: 00007fba217a3160 R15: 00007fba217d84c8 [ 717.880037] [ 717.880037] Showing all locks held in the system: [ 717.887104] 1 lock held by khungtaskd/1570: [ 717.891420] #0: 000000002fe27804 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 717.900712] 1 lock held by in:imklog/7803: [ 717.905384] #0: 00000000678902b6 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 [ 717.913787] 2 locks held by syz-executor219/8084: [ 717.918623] #0: 00000000ef9bece7 (sb_writers#11){.+.+}, at: mnt_want_write+0x3a/0xb0 [ 717.927710] #1: 00000000e9a8af35 (&sb->s_type->i_mutex_key#17){+.+.}, at: fuse_open_common+0x1bc/0x2c0 [ 717.938498] [ 717.940140] ============================================= [ 717.940140] [ 717.947953] NMI backtrace for cpu 0 [ 717.951587] CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 717.959032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 717.968380] Call Trace: [ 717.970970] dump_stack+0x1fc/0x2ef [ 717.974589] nmi_cpu_backtrace.cold+0x63/0xa2 [ 717.979073] ? lapic_can_unplug_cpu+0x80/0x80 [ 717.983551] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 717.988813] watchdog+0x991/0xe60 [ 717.992254] ? reset_hung_task_detector+0x30/0x30 [ 717.997079] kthread+0x33f/0x460 [ 718.000426] ? kthread_park+0x180/0x180 [ 718.004384] ret_from_fork+0x24/0x30 [ 718.008212] Sending NMI from CPU 0 to CPUs 1: [ 718.013592] NMI backtrace for cpu 1 [ 718.013598] CPU: 1 PID: 4685 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 [ 718.013604] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 718.013608] RIP: 0010:lock_release+0x1e0/0x8b0 [ 718.013618] Code: 45 85 c9 0f 84 f3 01 00 00 49 8d 86 80 08 00 00 48 89 c2 48 89 44 24 08 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 04 02 <84> c0 74 08 3c 03 0f 8e ef 05 00 00 48 c7 c3 60 37 24 8d 45 8b be [ 718.013623] RSP: 0018:ffff8880a17c75f0 EFLAGS: 00000806 [ 718.013630] RAX: 0000000000000000 RBX: ffff8880a17bc3c0 RCX: 1ffffffff148be2c [ 718.013635] RDX: 1ffff110142f7988 RSI: 0000000000000002 RDI: ffff8880a17bcc44 [ 718.013640] RBP: ffffffff89f85fa0 R08: 0000000000000000 R09: 0000000000000001 [ 718.013645] R10: 0000000000000000 R11: 0000000000074071 R12: 1ffff110142f8ec1 [ 718.013650] R13: ffffffff816d1175 R14: ffff8880a17bc3c0 R15: 0000000000000048 [ 718.013655] FS: 00007fcd7d3f08c0(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 718.013659] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 718.013664] CR2: 00007fcd7a7c1000 CR3: 00000000a142c000 CR4: 00000000003406e0 [ 718.013669] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 718.013674] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 718.013677] Call Trace: [ 718.013680] ? lock_downgrade+0x720/0x720 [ 718.013684] ? lock_acquire+0x170/0x3c0 [ 718.013688] ? __bpf_address_lookup+0x330/0x330 [ 718.013692] ? check_preemption_disabled+0x41/0x280 [ 718.013695] is_bpf_text_address+0xfc/0x1b0 [ 718.013699] kernel_text_address+0xbd/0xf0 [ 718.013702] __kernel_text_address+0x9/0x30 [ 718.013706] unwind_get_return_address+0x51/0x90 [ 718.013710] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.013714] __save_stack_trace+0xaf/0x190 [ 718.013717] ? lock_downgrade+0x720/0x720 [ 718.013721] ? lock_acquire+0x170/0x3c0 [ 718.013724] kasan_kmalloc+0xeb/0x160 [ 718.013728] ? kmem_cache_alloc_trace+0x12f/0x380 [ 718.013732] ? apparmor_file_alloc_security+0x394/0xad0 [ 718.013735] ? security_file_alloc+0x40/0x90 [ 718.013738] ? __alloc_file+0xd8/0x340 [ 718.013741] ? alloc_empty_file+0x6d/0x170 [ 718.013744] ? path_openat+0xe9/0x2df0 [ 718.013747] ? do_filp_open+0x18c/0x3f0 [ 718.013750] ? do_sys_open+0x3b3/0x520 [ 718.013752] ? do_syscall_64+0xf9/0x620 [ 718.013756] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.013759] ? mark_held_locks+0xf0/0xf0 [ 718.013762] ? kasan_kmalloc+0x139/0x160 [ 718.013765] ? kmem_cache_alloc+0x122/0x370 [ 718.013767] ? __alloc_file+0x21/0x340 [ 718.013770] ? alloc_empty_file+0x6d/0x170 [ 718.013774] ? path_openat+0xe9/0x2df0 [ 718.013777] ? do_filp_open+0x18c/0x3f0 [ 718.013780] ? do_sys_open+0x3b3/0x520 [ 718.013782] ? do_syscall_64+0xf9/0x620 [ 718.013786] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.013789] ? unwind_next_frame+0xeee/0x1400 [ 718.013792] ? fs_reclaim_release+0xd0/0x110 [ 718.013795] ? lock_acquire+0x170/0x3c0 [ 718.013798] ? kmem_cache_alloc_trace+0x2be/0x380 [ 718.013801] kmem_cache_alloc_trace+0x12f/0x380 [ 718.013805] apparmor_file_alloc_security+0x394/0xad0 [ 718.013808] ? apparmor_file_receive+0x160/0x160 [ 718.013811] ? __alloc_file+0x21/0x340 [ 718.013814] security_file_alloc+0x40/0x90 [ 718.013817] __alloc_file+0xd8/0x340 [ 718.013820] alloc_empty_file+0x6d/0x170 [ 718.013822] path_openat+0xe9/0x2df0 [ 718.013825] ? __lock_acquire+0x6de/0x3ff0 [ 718.013828] ? path_lookupat+0x8d0/0x8d0 [ 718.013831] ? __put_seccomp_filter+0xa0/0xa0 [ 718.013834] ? mark_held_locks+0xf0/0xf0 [ 718.013837] do_filp_open+0x18c/0x3f0 [ 718.013839] ? may_open_dev+0xf0/0xf0 [ 718.013842] ? __alloc_fd+0x28d/0x570 [ 718.013845] ? lock_downgrade+0x720/0x720 [ 718.013848] ? lock_acquire+0x170/0x3c0 [ 718.013851] ? __alloc_fd+0x34/0x570 [ 718.013854] ? do_raw_spin_unlock+0x171/0x230 [ 718.013856] ? _raw_spin_unlock+0x29/0x40 [ 718.013859] ? __alloc_fd+0x28d/0x570 [ 718.013862] do_sys_open+0x3b3/0x520 [ 718.013864] ? filp_open+0x70/0x70 [ 718.013868] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 718.013871] ? trace_hardirqs_off_caller+0x6e/0x210 [ 718.013874] ? do_syscall_64+0x21/0x620 [ 718.013877] do_syscall_64+0xf9/0x620 [ 718.013880] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.013883] RIP: 0033:0x7fcd7c97f840 [ 718.013893] Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 bb 20 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24 [ 718.013896] RSP: 002b:00007ffe895029c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 718.013904] RAX: ffffffffffffffda RBX: 00007ffe89502cd0 RCX: 00007fcd7c97f840 [ 718.013908] RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 000055c9729397a0 [ 718.013913] RBP: 000000000000000d R08: 00000000000001e0 R09: 00000000ffffffff [ 718.013917] R10: 0000000000000069 R11: 0000000000000246 R12: 00000000ffffffff [ 718.013921] R13: 000055c97292c040 R14: 00007ffe89502c90 R15: 000055c9729397f0 [ 718.016111] Kernel panic - not syncing: hung_task: blocked tasks [ 718.487972] CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.495397] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 718.504812] Call Trace: [ 718.507386] dump_stack+0x1fc/0x2ef [ 718.510996] panic+0x26a/0x50e [ 718.514169] ? __warn_printk+0xf3/0xf3 [ 718.518049] ? lapic_can_unplug_cpu+0x80/0x80 [ 718.522524] ? ___preempt_schedule+0x16/0x18 [ 718.526929] ? watchdog+0x991/0xe60 [ 718.530545] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 718.535983] watchdog+0x9a2/0xe60 [ 718.539422] ? reset_hung_task_detector+0x30/0x30 [ 718.544246] kthread+0x33f/0x460 [ 718.547594] ? kthread_park+0x180/0x180 [ 718.551559] ret_from_fork+0x24/0x30 [ 718.555557] Kernel Offset: disabled [ 718.559181] Rebooting in 86400 seconds..