Warning: Permanently added '10.128.1.21' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 717.600264] INFO: task syz-executor591:8115 blocked for more than 140 seconds. [ 717.607709] Not tainted 4.19.211-syzkaller #0 [ 717.612960] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.620994] syz-executor591 D27952 8115 8113 0x00000004 [ 717.626612] Call Trace: [ 717.629184] __schedule+0x887/0x2040 [ 717.632936] ? io_schedule_timeout+0x140/0x140 [ 717.637526] ? _raw_spin_unlock+0x29/0x40 [ 717.641748] schedule+0x8d/0x1b0 [ 717.645116] fuse_wait_on_page_writeback.isra.0+0x11b/0x170 [ 717.650881] ? fuse_do_ioctl+0x1850/0x1850 [ 717.655126] ? wait_woken+0x250/0x250 [ 717.658917] ? fuse_writepage_locked+0xb63/0x1010 [ 717.663813] ? fuse_writepage_locked+0x1010/0x1010 [ 717.668745] fuse_launder_page+0xb6/0xe0 [ 717.672858] invalidate_inode_pages2_range+0x795/0x1110 [ 717.678226] ? clear_shadow_entry+0x170/0x170 [ 717.682776] ? fuse_file_alloc+0x1d9/0x270 [ 717.687011] ? do_raw_spin_unlock+0x171/0x230 [ 717.691553] ? _raw_spin_unlock+0x29/0x40 [ 717.695700] ? fuse_do_open+0x1c4/0x500 [ 717.699657] fuse_finish_open+0x2e2/0x590 [ 717.703877] fuse_open_common+0x254/0x2c0 [ 717.708031] do_dentry_open+0x4aa/0x1160 [ 717.712146] ? fuse_open_common+0x2c0/0x2c0 [ 717.716465] ? inode_permission.part.0+0x10c/0x450 [ 717.721447] ? chown_common+0x550/0x550 [ 717.725412] ? inode_permission+0x3d/0x140 [ 717.729629] path_openat+0x793/0x2df0 [ 717.733494] ? path_lookupat+0x8d0/0x8d0 [ 717.737555] ? mark_held_locks+0xf0/0xf0 [ 717.741668] ? mark_held_locks+0xf0/0xf0 [ 717.745728] do_filp_open+0x18c/0x3f0 [ 717.749506] ? may_open_dev+0xf0/0xf0 [ 717.753374] ? lock_downgrade+0x720/0x720 [ 717.757515] ? lock_acquire+0x170/0x3c0 [ 717.761538] ? __alloc_fd+0x34/0x570 [ 717.765244] ? do_raw_spin_unlock+0x171/0x230 [ 717.769719] ? _raw_spin_unlock+0x29/0x40 [ 717.774068] ? __alloc_fd+0x28d/0x570 [ 717.777865] do_sys_open+0x3b3/0x520 [ 717.781628] ? filp_open+0x70/0x70 [ 717.785162] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 717.790563] ? trace_hardirqs_off_caller+0x6e/0x210 [ 717.795575] ? do_syscall_64+0x21/0x620 [ 717.799528] do_syscall_64+0xf9/0x620 [ 717.803400] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 717.808589] RIP: 0033:0x7f9103d014c9 [ 717.812349] Code: Bad RIP value. [ 717.815713] RSP: 002b:00007f9103cb22f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 717.823565] RAX: ffffffffffffffda RBX: 00007f9103d924c0 RCX: 00007f9103d014c9 [ 717.830890] RDX: 00007f9103d014c9 RSI: 0000000000000000 RDI: 00000000200001c0 [ 717.838151] RBP: 00007f9103d5f164 R08: 0000000000000000 R09: 0000000000000000 [ 717.845465] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 717.852787] R13: 00007f9103d5b158 R14: 00007f9103d5d160 R15: 00007f9103d924c8 [ 717.860071] [ 717.860071] Showing all locks held in the system: [ 717.866460] 1 lock held by khungtaskd/1571: [ 717.870992] #0: 000000005c23b578 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 717.879598] 1 lock held by in:imklog/7778: [ 717.883877] 2 locks held by syz-executor591/8115: [ 717.888707] #0: 0000000037e428ee (sb_writers#11){.+.+}, at: mnt_want_write+0x3a/0xb0 [ 717.896731] #1: 00000000db44fd9e (&sb->s_type->i_mutex_key#17){+.+.}, at: fuse_open_common+0x1bc/0x2c0 [ 717.906434] [ 717.908066] ============================================= [ 717.908066] [ 717.915142] NMI backtrace for cpu 0 [ 717.918763] CPU: 0 PID: 1571 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 717.926185] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 717.935541] Call Trace: [ 717.938111] dump_stack+0x1fc/0x2ef [ 717.941721] nmi_cpu_backtrace.cold+0x63/0xa2 [ 717.946201] ? lapic_can_unplug_cpu+0x80/0x80 [ 717.950675] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 717.955932] watchdog+0x991/0xe60 [ 717.959372] ? reset_hung_task_detector+0x30/0x30 [ 717.964192] kthread+0x33f/0x460 [ 717.967546] ? kthread_park+0x180/0x180 [ 717.971499] ret_from_fork+0x24/0x30 [ 717.975282] Sending NMI from CPU 0 to CPUs 1: [ 717.980179] NMI backtrace for cpu 1 [ 717.980185] CPU: 1 PID: 4693 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 [ 717.980191] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 717.980195] RIP: 0010:___bpf_prog_run+0x1cfe/0x4e80 [ 717.980206] Code: e2 07 0f b6 04 18 38 d0 7f 08 84 c0 0f 85 86 1d 00 00 41 0f b6 46 01 83 e0 0f 48 8d 44 c5 00 48 89 c2 48 c1 ea 03 80 3c 1a 00 <0f> 85 53 1d 00 00 4c 89 38 49 83 c6 08 e9 30 e3 ff ff e8 bb 31 f6 [ 717.980210] RSP: 0018:ffff8880a0887a30 EFLAGS: 00000246 [ 717.980218] RAX: ffff8880a0887b10 RBX: dffffc0000000000 RCX: ffff8880a0887e70 [ 717.980223] RDX: 1ffff11014110f62 RSI: ffffffff816c533d RDI: ffffc90001a93059 [ 717.980228] RBP: ffff8880a0887b00 R08: 0000000000000000 R09: 000000007fff0000 [ 717.980233] R10: 0000000000000004 R11: 0000000000000000 R12: ffffffff886fb460 [ 717.980238] R13: ffffed1014110f62 R14: ffffc90001a93058 R15: 00000000c000003e [ 717.980243] FS: 00007f6f0a6808c0(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 717.980247] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 717.980252] CR2: 00007f6f07a50000 CR3: 00000000a0fe4000 CR4: 00000000003406e0 [ 717.980257] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 717.980262] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 717.980265] Call Trace: [ 717.980268] ? __bpf_prog_run32+0x8f/0xd0 [ 717.980272] ? __bpf_prog_run64+0xd0/0xd0 [ 717.980276] ? __lock_acquire+0x6de/0x3ff0 [ 717.980279] ? trace_hardirqs_off+0x64/0x200 [ 717.980283] ? mark_held_locks+0xf0/0xf0 [ 717.980286] ? seccomp_run_filters+0x124/0x590 [ 717.980290] ? debug_object_activate+0x12f/0x450 [ 717.980294] ? __put_seccomp_filter+0xa0/0xa0 [ 717.980297] ? __lock_acquire+0x6de/0x3ff0 [ 717.980301] ? __seccomp_filter+0x93/0xca0 [ 717.980305] ? seccomp_send_sigsys+0x1c0/0x1c0 [ 717.980308] ? mark_held_locks+0xf0/0xf0 [ 717.980312] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 717.980316] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 717.980320] ? debug_object_active_state+0x254/0x330 [ 717.980323] ? debug_object_init_on_stack+0x20/0x20 [ 717.980326] ? kfree+0x110/0x210 [ 717.980330] ? task_work_run+0x11c/0x1c0 [ 717.980334] ? __secure_computing+0xfc/0x360 [ 717.980337] ? syscall_trace_enter+0x563/0xd60 [ 717.980341] ? blkcg_schedule_throttle+0x1f0/0x1f0 [ 717.980345] ? syscall_slow_exit_work+0x630/0x630 [ 717.980348] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 717.980352] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 717.980356] ? trace_hardirqs_off_caller+0x6e/0x210 [ 717.980365] ? do_syscall_64+0x21/0x620 [ 717.980369] ? do_syscall_64+0x486/0x620 [ 717.980373] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 717.980810] Kernel panic - not syncing: hung_task: blocked tasks [ 718.236876] CPU: 0 PID: 1571 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.244296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 718.253629] Call Trace: [ 718.256203] dump_stack+0x1fc/0x2ef [ 718.259812] panic+0x26a/0x50e [ 718.262986] ? __warn_printk+0xf3/0xf3 [ 718.266861] ? lapic_can_unplug_cpu+0x80/0x80 [ 718.271333] ? ___preempt_schedule+0x16/0x18 [ 718.275720] ? watchdog+0x991/0xe60 [ 718.279326] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 718.284756] watchdog+0x9a2/0xe60 [ 718.288191] ? reset_hung_task_detector+0x30/0x30 [ 718.293012] kthread+0x33f/0x460 [ 718.296356] ? kthread_park+0x180/0x180 [ 718.300307] ret_from_fork+0x24/0x30 [ 718.304260] Kernel Offset: disabled [ 718.307873] Rebooting in 86400 seconds..