Warning: Permanently added '10.128.0.3' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 47.995221] IPVS: ftp: loaded support on port[0] = 21 [ 48.192171] WARNING: CPU: 0 PID: 5945 at fs/fuse/inode.c:119 fuse_destroy_inode+0x251/0x2c0 [ 48.200998] Kernel panic - not syncing: panic_on_warn set ... [ 48.206861] CPU: 0 PID: 5945 Comm: syz-executor830 Not tainted 4.20.0-rc2+ #117 [ 48.214484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.224010] Call Trace: [ 48.226584] dump_stack+0x244/0x39d [ 48.230189] ? dump_stack_print_info.cold.1+0x20/0x20 [ 48.235371] panic+0x2ad/0x55c [ 48.238550] ? add_taint.cold.5+0x16/0x16 [ 48.242675] ? __warn.cold.8+0x5/0x45 [ 48.246451] ? __warn+0xe8/0x1d0 [ 48.249794] ? fuse_destroy_inode+0x251/0x2c0 [ 48.254272] __warn.cold.8+0x20/0x45 [ 48.257964] ? rcu_softirq_qs+0x20/0x20 [ 48.261914] ? fuse_destroy_inode+0x251/0x2c0 [ 48.266416] report_bug+0x254/0x2d0 [ 48.270032] do_error_trap+0x11b/0x200 [ 48.273902] do_invalid_op+0x36/0x40 [ 48.277598] ? fuse_destroy_inode+0x251/0x2c0 [ 48.282079] invalid_op+0x14/0x20 [ 48.285514] RIP: 0010:fuse_destroy_inode+0x251/0x2c0 [ 48.290601] Code: 41 c6 44 15 00 f8 0f 84 8c fe ff ff e8 28 f2 f2 fe 0f 0b e9 80 fe ff ff 48 89 df e8 19 3f 36 ff e9 50 fe ff ff e8 0f f2 f2 fe <0f> 0b e9 6a ff ff ff e8 43 3f 36 ff e9 90 fe ff ff e8 89 59 bc fe [ 48.309483] RSP: 0018:ffff8881bfde6818 EFLAGS: 00010293 [ 48.314831] RAX: ffff8881cb454700 RBX: ffff8881b04f25c0 RCX: 1ffff11037fbcd08 [ 48.322094] RDX: 0000000000000000 RSI: ffffffff828c95d1 RDI: 0000000000000003 [ 48.329346] RBP: ffff8881bfde68e8 R08: ffff8881cb454700 R09: 0000000000000008 [ 48.336594] R10: 0000000000000002 R11: ffff8881cb454700 R12: 1ffff11037fbcd04 [ 48.343842] R13: 1ffff11037fbcd08 R14: ffff8881bfde68c0 R15: ffff8881b04f2998 [ 48.351104] ? fuse_destroy_inode+0x251/0x2c0 [ 48.355582] ? fuse_destroy_inode+0x251/0x2c0 [ 48.360058] ? fuse_evict_inode+0x1e0/0x1e0 [ 48.364360] ? evict+0x5d8/0x980 [ 48.367872] ? lock_downgrade+0x900/0x900 [ 48.372027] ? fuse_evict_inode+0x1e0/0x1e0 [ 48.376340] destroy_inode+0x159/0x200 [ 48.380212] ? __destroy_inode+0x820/0x820 [ 48.384551] ? fuse_queue_forget+0x138/0x190 [ 48.388947] evict+0x5e0/0x980 [ 48.392127] ? destroy_inode+0x200/0x200 [ 48.396207] ? iput+0x671/0xa90 [ 48.399474] ? lock_downgrade+0x900/0x900 [ 48.403611] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 48.409131] ? kasan_check_read+0x11/0x20 [ 48.413258] ? do_raw_spin_trylock+0x270/0x270 [ 48.417852] ? find_held_lock+0x36/0x1c0 [ 48.421907] iput+0x679/0xa90 [ 48.424994] ? inode_add_lru+0x2a0/0x2a0 [ 48.429033] ? d_walk+0x797/0xc70 [ 48.432469] ? kasan_check_read+0x11/0x20 [ 48.436594] ? do_raw_spin_unlock+0xa7/0x330 [ 48.440984] ? do_raw_spin_trylock+0x270/0x270 [ 48.445546] ? print_usage_bug+0xc0/0xc0 [ 48.449590] ? do_raw_spin_unlock+0xa7/0x330 [ 48.453984] dentry_unlink_inode+0x461/0x5e0 [ 48.458374] ? d_lru_del+0x130/0x130 [ 48.462068] ? zap_class+0x640/0x640 [ 48.465763] ? d_walk+0x797/0xc70 [ 48.469194] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.474717] ? lockref_mark_dead+0xef/0x170 [ 48.479017] ? lockref_get_not_dead+0x90/0x90 [ 48.483494] ? lock_acquire+0x1ed/0x520 [ 48.487450] __dentry_kill+0x44c/0x7a0 [ 48.491329] ? d_drop+0x70/0x70 [ 48.494597] ? lock_downgrade+0x900/0x900 [ 48.498733] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 48.503647] ? kasan_check_read+0x11/0x20 [ 48.507784] dentry_kill+0xc9/0x680 [ 48.511397] dput.part.25+0x660/0x860 [ 48.515179] ? shrink_dcache_sb+0x350/0x350 [ 48.519486] do_one_tree+0x37/0x40 [ 48.523006] shrink_dcache_for_umount+0xc7/0x2b0 [ 48.527739] ? lock_downgrade+0x900/0x900 [ 48.531870] ? d_set_mounted+0x2e0/0x2e0 [ 48.535918] ? lock_release+0xa00/0xa00 [ 48.539873] ? perf_trace_sched_process_exec+0x860/0x860 [ 48.545311] ? unregister_shrinker+0x270/0x460 [ 48.549881] generic_shutdown_super+0xd5/0x530 [ 48.554447] ? destroy_super_rcu+0x210/0x210 [ 48.558846] ? up_write+0x7b/0x220 [ 48.562367] ? down_write_nested+0x130/0x130 [ 48.566758] ? down_read+0x120/0x120 [ 48.570450] ? prepare_kswapd_sleep+0x220/0x220 [ 48.575266] kill_anon_super+0x3e/0x60 [ 48.579149] fuse_kill_sb_anon+0x1d/0x20 [ 48.583195] deactivate_locked_super+0x97/0x100 [ 48.588004] deactivate_super+0x2bb/0x320 [ 48.592138] ? get_super_exclusive_thawed+0x20/0x20 [ 48.597135] ? fsnotify_destroy_marks+0x1d2/0x270 [ 48.601960] ? shrink_dcache_sb+0x350/0x350 [ 48.606262] ? cpumask_next+0x41/0x50 [ 48.610044] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 48.615041] ? mnt_get_writers.isra.26+0xf8/0x150 [ 48.619884] cleanup_mnt+0xbf/0x160 [ 48.623499] __cleanup_mnt+0x16/0x20 [ 48.627196] task_work_run+0x1e8/0x2a0 [ 48.631065] ? task_work_cancel+0x240/0x240 [ 48.635366] ? switch_task_namespaces+0xb8/0xd0 [ 48.640033] do_exit+0x1ad6/0x26d0 [ 48.643562] ? do_raw_spin_trylock+0x251/0x270 [ 48.648123] ? mm_update_next_owner+0x990/0x990 [ 48.652775] ? print_usage_bug+0xc0/0xc0 [ 48.656816] ? zap_class+0x640/0x640 [ 48.660512] ? find_held_lock+0x36/0x1c0 [ 48.664561] ? __lock_acquire+0x62f/0x4c20 [ 48.668778] ? lock_downgrade+0x900/0x900 [ 48.672914] ? mark_held_locks+0x130/0x130 [ 48.677127] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 48.682312] ? drop_futex_key_refs.isra.14+0x6d/0xe0 [ 48.687394] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 48.692909] ? futex_wait+0x5ec/0xa50 [ 48.696701] ? futex_wait_setup+0x3e0/0x3e0 [ 48.701004] ? drop_futex_key_refs.isra.14+0x6d/0xe0 [ 48.706161] ? futex_wake+0x304/0x760 [ 48.709967] ? zap_class+0x640/0x640 [ 48.713686] ? memset+0x31/0x40 [ 48.716948] ? find_held_lock+0x36/0x1c0 [ 48.720991] ? get_signal+0x95b/0x1980 [ 48.724858] ? _raw_spin_unlock_irq+0x27/0x80 [ 48.729333] ? _raw_spin_unlock_irq+0x27/0x80 [ 48.733815] do_group_exit+0x177/0x440 [ 48.737686] ? trace_hardirqs_off_caller+0x310/0x310 [ 48.742768] ? __ia32_sys_exit+0x50/0x50 [ 48.746811] get_signal+0x8b0/0x1980 [ 48.750517] ? ptrace_notify+0x130/0x130 [ 48.754561] ? filename_lookup+0x39f/0x520 [ 48.758785] ? filename_parentat.isra.56+0x570/0x570 [ 48.763874] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 48.769396] ? digsig_verify+0x1530/0x1530 [ 48.773626] do_signal+0x9c/0x21c0 [ 48.777152] ? getname_flags+0x26e/0x590 [ 48.781199] ? user_path_at_empty+0x40/0x50 [ 48.785497] ? setup_sigcontext+0x7d0/0x7d0 [ 48.789794] ? vfs_statx+0x17a/0x210 [ 48.793492] ? exit_to_usermode_loop+0x8c/0x380 [ 48.798140] ? exit_to_usermode_loop+0x8c/0x380 [ 48.802951] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 48.807518] ? trace_hardirqs_on+0xbd/0x310 [ 48.811819] ? do_syscall_64+0x6be/0x820 [ 48.815864] ? __x64_sys_futex+0x47f/0x6a0 [ 48.820079] exit_to_usermode_loop+0x2e5/0x380 [ 48.824641] ? __bpf_trace_sys_exit+0x30/0x30 [ 48.829113] ? trace_hardirqs_off+0xb8/0x310 [ 48.833504] do_syscall_64+0x6be/0x820 [ 48.837371] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 48.842718] ? syscall_return_slowpath+0x5e0/0x5e0 [ 48.847626] ? trace_hardirqs_on_caller+0x310/0x310 [ 48.852624] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 48.857617] ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250 [ 48.864260] ? __switch_to_asm+0x40/0x70 [ 48.868298] ? __switch_to_asm+0x34/0x70 [ 48.872344] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.877170] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 48.882341] RIP: 0033:0x445f79 [ 48.885522] Code: Bad RIP value. [ 48.888866] RSP: 002b:00007f69b92adda8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 48.896651] RAX: fffffffffffffe00 RBX: 00000000006dbc38 RCX: 0000000000445f79 [ 48.903905] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dbc38 [ 48.911151] RBP: 00000000006dbc30 R08: 0000000000000000 R09: 0000000000000000 [ 48.918436] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc3c [ 48.925689] R13: 2f30656c69662f2e R14: 0000000100000001 R15: 0000000000000001 [ 48.934174] Kernel Offset: disabled [ 48.937846] Rebooting in 86400 seconds..