Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 33.867206] audit: type=1800 audit(1542389300.504:33): pid=6067 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 33.899660] audit: type=1800 audit(1542389300.504:34): pid=6067 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 37.441895] audit: type=1400 audit(1542389304.074:35): avc: denied { map } for pid=6245 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.51' (ECDSA) to the list of known hosts. executing program [ 50.195546] audit: type=1400 audit(1542389316.834:36): avc: denied { map } for pid=6259 comm="syz-executor886" path="/root/syz-executor886825203" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 50.212711] IPVS: ftp: loaded support on port[0] = 21 [ 50.446129] WARNING: CPU: 0 PID: 6262 at fs/fuse/inode.c:119 fuse_destroy_inode+0x251/0x2c0 [ 50.454694] Kernel panic - not syncing: panic_on_warn set ... [ 50.460568] CPU: 0 PID: 6262 Comm: syz-executor886 Not tainted 4.20.0-rc2+ #116 [ 50.467997] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.477333] Call Trace: [ 50.479906] dump_stack+0x244/0x39d [ 50.483519] ? dump_stack_print_info.cold.1+0x20/0x20 [ 50.488703] panic+0x2ad/0x55c [ 50.491881] ? add_taint.cold.5+0x16/0x16 [ 50.496020] ? __warn.cold.8+0x5/0x45 [ 50.499805] ? __warn+0xe8/0x1d0 [ 50.503153] ? fuse_destroy_inode+0x251/0x2c0 [ 50.507631] __warn.cold.8+0x20/0x45 [ 50.511328] ? rcu_softirq_qs+0x20/0x20 [ 50.515288] ? fuse_destroy_inode+0x251/0x2c0 [ 50.519766] report_bug+0x254/0x2d0 [ 50.523533] do_error_trap+0x11b/0x200 [ 50.527407] do_invalid_op+0x36/0x40 [ 50.531103] ? fuse_destroy_inode+0x251/0x2c0 [ 50.535582] invalid_op+0x14/0x20 [ 50.539024] RIP: 0010:fuse_destroy_inode+0x251/0x2c0 [ 50.544108] Code: 41 c6 44 15 00 f8 0f 84 8c fe ff ff e8 c8 f2 f2 fe 0f 0b e9 80 fe ff ff 48 89 df e8 b9 3f 36 ff e9 50 fe ff ff e8 af f2 f2 fe <0f> 0b e9 6a ff ff ff e8 e3 3f 36 ff e9 90 fe ff ff e8 29 5a bc fe [ 50.563059] RSP: 0018:ffff8881c3da6818 EFLAGS: 00010293 [ 50.568412] RAX: ffff8881cc8a44c0 RBX: ffff8881a32795c0 RCX: 1ffff110387b4d08 [ 50.575669] RDX: 0000000000000000 RSI: ffffffff828c9531 RDI: 0000000000000003 [ 50.582920] RBP: ffff8881c3da68e8 R08: ffff8881cc8a44c0 R09: 0000000000000008 [ 50.590173] R10: 0000000000000002 R11: ffff8881cc8a44c0 R12: 1ffff110387b4d04 [ 50.597424] R13: 1ffff110387b4d08 R14: ffff8881c3da68c0 R15: ffff8881a3279998 [ 50.604689] ? fuse_destroy_inode+0x251/0x2c0 [ 50.609175] ? fuse_destroy_inode+0x251/0x2c0 [ 50.613666] ? fuse_evict_inode+0x1e0/0x1e0 [ 50.617972] ? evict+0x5d8/0x980 [ 50.621339] ? lock_downgrade+0x900/0x900 [ 50.625471] ? fuse_evict_inode+0x1e0/0x1e0 [ 50.629773] destroy_inode+0x159/0x200 [ 50.633640] ? __destroy_inode+0x820/0x820 [ 50.637876] ? fuse_queue_forget+0x138/0x190 [ 50.642293] evict+0x5e0/0x980 [ 50.645475] ? destroy_inode+0x200/0x200 [ 50.649519] ? iput+0x671/0xa90 [ 50.652790] ? lock_downgrade+0x900/0x900 [ 50.656933] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 50.662459] ? kasan_check_read+0x11/0x20 [ 50.666590] ? do_raw_spin_trylock+0x270/0x270 [ 50.671158] ? find_held_lock+0x36/0x1c0 [ 50.675318] iput+0x679/0xa90 [ 50.678412] ? inode_add_lru+0x2a0/0x2a0 [ 50.682455] ? d_walk+0x797/0xc70 [ 50.685893] ? kasan_check_read+0x11/0x20 [ 50.690022] ? do_raw_spin_unlock+0xa7/0x330 [ 50.694429] ? do_raw_spin_trylock+0x270/0x270 [ 50.699012] ? print_usage_bug+0xc0/0xc0 [ 50.703054] ? do_raw_spin_unlock+0xa7/0x330 [ 50.707453] dentry_unlink_inode+0x461/0x5e0 [ 50.711846] ? d_lru_del+0x130/0x130 [ 50.715543] ? zap_class+0x640/0x640 [ 50.719236] ? d_walk+0x797/0xc70 [ 50.722673] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.728196] ? lockref_mark_dead+0xef/0x170 [ 50.732497] ? lockref_get_not_dead+0x90/0x90 [ 50.736980] ? lock_acquire+0x1ed/0x520 [ 50.740938] __dentry_kill+0x44c/0x7a0 [ 50.744812] ? d_drop+0x70/0x70 [ 50.748071] ? lock_downgrade+0x900/0x900 [ 50.752202] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 50.757114] ? kasan_check_read+0x11/0x20 [ 50.761249] dentry_kill+0xc9/0x680 [ 50.764859] dput.part.25+0x660/0x860 [ 50.768645] ? shrink_dcache_sb+0x350/0x350 [ 50.772952] do_one_tree+0x37/0x40 [ 50.776475] shrink_dcache_for_umount+0xc7/0x2b0 [ 50.781316] ? lock_downgrade+0x900/0x900 [ 50.785452] ? d_set_mounted+0x2e0/0x2e0 [ 50.789504] ? lock_release+0xa00/0xa00 [ 50.793466] ? perf_trace_sched_process_exec+0x860/0x860 [ 50.798900] ? unregister_shrinker+0x270/0x460 [ 50.803468] generic_shutdown_super+0xd5/0x530 [ 50.808033] ? destroy_super_rcu+0x210/0x210 [ 50.812431] ? up_write+0x7b/0x220 [ 50.815956] ? down_write_nested+0x130/0x130 [ 50.820347] ? down_read+0x120/0x120 [ 50.824059] ? prepare_kswapd_sleep+0x220/0x220 [ 50.828725] kill_anon_super+0x3e/0x60 [ 50.832598] fuse_kill_sb_anon+0x1d/0x20 [ 50.836760] deactivate_locked_super+0x97/0x100 [ 50.841419] deactivate_super+0x2bb/0x320 [ 50.845550] ? get_super_exclusive_thawed+0x20/0x20 [ 50.850549] ? fsnotify_destroy_marks+0x1d2/0x270 [ 50.855374] ? shrink_dcache_sb+0x350/0x350 [ 50.859677] ? cpumask_next+0x41/0x50 [ 50.863459] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 50.868457] ? mnt_get_writers.isra.26+0xf8/0x150 [ 50.873283] cleanup_mnt+0xbf/0x160 [ 50.876891] __cleanup_mnt+0x16/0x20 [ 50.880585] task_work_run+0x1e8/0x2a0 [ 50.884453] ? task_work_cancel+0x240/0x240 [ 50.888764] ? switch_task_namespaces+0xb8/0xd0 [ 50.893421] do_exit+0x1ad6/0x26d0 [ 50.896944] ? do_raw_spin_trylock+0x251/0x270 [ 50.901508] ? mm_update_next_owner+0x990/0x990 [ 50.906159] ? print_usage_bug+0xc0/0xc0 [ 50.910202] ? zap_class+0x640/0x640 [ 50.913898] ? find_held_lock+0x36/0x1c0 [ 50.917945] ? __lock_acquire+0x62f/0x4c20 [ 50.922162] ? lock_downgrade+0x900/0x900 [ 50.926296] ? mark_held_locks+0x130/0x130 [ 50.930515] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 50.935703] ? drop_futex_key_refs.isra.14+0x6d/0xe0 [ 50.940795] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.946315] ? futex_wait+0x5ec/0xa50 [ 50.950102] ? futex_wait_setup+0x3e0/0x3e0 [ 50.954418] ? drop_futex_key_refs.isra.14+0x6d/0xe0 [ 50.959509] ? futex_wake+0x304/0x760 [ 50.963298] ? zap_class+0x640/0x640 [ 50.967056] ? memset+0x31/0x40 [ 50.970331] ? find_held_lock+0x36/0x1c0 [ 50.974382] ? get_signal+0x95b/0x1980 [ 50.978253] ? _raw_spin_unlock_irq+0x27/0x80 [ 50.982729] ? _raw_spin_unlock_irq+0x27/0x80 [ 50.987218] do_group_exit+0x177/0x440 [ 50.991091] ? trace_hardirqs_off_caller+0x310/0x310 [ 50.996177] ? __ia32_sys_exit+0x50/0x50 [ 51.000222] get_signal+0x8b0/0x1980 [ 51.003927] ? ptrace_notify+0x130/0x130 [ 51.007971] ? filename_lookup+0x39f/0x520 [ 51.012191] ? filename_parentat.isra.56+0x570/0x570 [ 51.017278] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.022806] ? digsig_verify+0x1530/0x1530 [ 51.027026] ? __vfs_write+0x121/0x9f0 [ 51.030897] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.036425] do_signal+0x9c/0x21c0 [ 51.039947] ? getname_flags+0x26e/0x590 [ 51.043993] ? user_path_at_empty+0x40/0x50 [ 51.048295] ? setup_sigcontext+0x7d0/0x7d0 [ 51.052604] ? vfs_statx+0x17a/0x210 [ 51.056301] ? exit_to_usermode_loop+0x8c/0x380 [ 51.060950] ? exit_to_usermode_loop+0x8c/0x380 [ 51.065608] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 51.070178] ? trace_hardirqs_on+0xbd/0x310 [ 51.074482] ? do_syscall_64+0x6be/0x820 [ 51.078529] ? __x64_sys_futex+0x47f/0x6a0 [ 51.082759] exit_to_usermode_loop+0x2e5/0x380 [ 51.087333] ? __bpf_trace_sys_exit+0x30/0x30 [ 51.091817] ? trace_hardirqs_off+0xb8/0x310 [ 51.096210] do_syscall_64+0x6be/0x820 [ 51.100078] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 51.105455] ? syscall_return_slowpath+0x5e0/0x5e0 [ 51.110382] ? trace_hardirqs_on_caller+0x310/0x310 [ 51.115468] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 51.120466] ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250 [ 51.127110] ? __switch_to_asm+0x40/0x70 [ 51.131149] ? __switch_to_asm+0x34/0x70 [ 51.135309] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.140147] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.145318] RIP: 0033:0x445f79 [ 51.148499] Code: Bad RIP value. [ 51.151844] RSP: 002b:00007f5160852da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 51.159537] RAX: fffffffffffffe00 RBX: 00000000006dbc38 RCX: 0000000000445f79 [ 51.166789] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dbc38 [ 51.174041] RBP: 00000000006dbc30 R08: 0000000000000000 R09: 0000000000000000 [ 51.181289] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc3c [ 51.188537] R13: 2f30656c69662f2e R14: 0000000100000001 R15: 0000000000000001 [ 51.196866] Kernel Offset: disabled [ 51.200524] Rebooting in 86400 seconds..