[info] Using makefile-style concurrent boot in runlevel 2. [ 25.183476] audit: type=1800 audit(1537927932.184:21): pid=5206 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 25.210523] audit: type=1800 audit(1537927932.184:22): pid=5206 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.13' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 40.582954] kasan: CONFIG_KASAN_INLINE enabled [ 40.587754] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 40.595430] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 40.601673] CPU: 1 PID: 5361 Comm: syz-executor873 Not tainted 4.19.0-rc5+ #31 [ 40.609022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.618381] RIP: 0010:rb_erase+0x306/0x3710 [ 40.622697] Code: c7 81 28 01 00 00 f2 f2 f2 f2 c7 81 2c 01 00 00 00 f2 f2 f2 48 89 f9 65 48 8b 1c 25 28 00 00 00 48 89 5d d0 31 db 48 c1 e9 03 <42> 80 3c 01 00 0f 85 41 1c 00 00 4c 8d 48 10 4c 8b 78 08 48 b9 00 [ 40.641603] RSP: 0018:ffff8801bb3d6918 EFLAGS: 00010202 [ 40.646971] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 40.654235] RDX: 1ffff1003767ad2b RSI: ffffffff8b5a08a0 RDI: 0000000000000008 [ 40.661502] RBP: ffff8801bb3d7320 R08: dffffc0000000000 R09: fffffbfff135d5c8 [ 40.668765] R10: fffffbfff135d5c8 R11: ffffffff89aeae43 R12: ffff8801b67681f0 [ 40.676055] R13: dffffc0000000000 R14: ffff8801bb3d72f8 R15: ffff8801bb3d7438 [ 40.683316] FS: 0000000001dd9880(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000 [ 40.691527] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.697391] CR2: 0000000020000700 CR3: 00000001d7d37000 CR4: 00000000001406e0 [ 40.704660] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.711915] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.719169] Call Trace: [ 40.721751] ? lockdep_on+0x50/0x50 [ 40.725361] ? rb_insert_color+0x1460/0x1460 [ 40.729752] ? noop_count+0x40/0x40 [ 40.733375] ? lock_pin_lock+0x350/0x350 [ 40.737420] ? noop_count+0x40/0x40 [ 40.741030] ? kasan_check_read+0x11/0x20 [ 40.745162] ? noop_count+0x40/0x40 [ 40.748771] ? noop_count+0x40/0x40 [ 40.752390] ? lock_pin_lock+0x350/0x350 [ 40.756437] ? mark_held_locks+0x130/0x130 [ 40.760665] ? check_usage_forwards+0x3e0/0x3e0 [ 40.765326] ? __bfs+0x385/0x7a0 [ 40.768674] ? noop_count+0x40/0x40 [ 40.772287] ? check_usage+0x1a9/0x790 [ 40.776156] ? lock_pin_lock+0x350/0x350 [ 40.780200] ? check_usage_forwards+0x3e0/0x3e0 [ 40.784854] ? __bfs+0x385/0x7a0 [ 40.788200] ? __lock_acquire+0x7ec/0x4ec0 [ 40.792417] ? lockdep_on+0x50/0x50 [ 40.796023] ? lock_pin_lock+0x350/0x350 [ 40.800071] ? mark_held_locks+0x130/0x130 [ 40.804319] ? kasan_check_read+0x11/0x20 [ 40.808447] ? __lock_acquire+0x2881/0x4ec0 [ 40.812755] ? mark_held_locks+0x130/0x130 [ 40.817327] ? print_usage_bug+0xc0/0xc0 [ 40.821380] ? _raw_spin_unlock+0x2c/0x50 [ 40.825521] ? graph_lock+0x170/0x170 [ 40.829306] ? ext4_exit_mballoc+0xc0/0xc0 [ 40.833529] ? __lock_acquire+0x7ec/0x4ec0 [ 40.837749] ? find_held_lock+0x36/0x1c0 [ 40.841811] ? mark_held_locks+0x130/0x130 [ 40.846032] ? lock_downgrade+0x900/0x900 [ 40.850166] ? ext4_es_scan+0x960/0x960 [ 40.854131] ? lock_release+0x970/0x970 [ 40.858091] ? do_raw_write_trylock+0x1c0/0x1c0 [ 40.862773] ? kasan_check_write+0x14/0x20 [ 40.866998] ? lock_acquire+0x1ed/0x520 [ 40.870962] ? integrity_inode_free+0x77/0x320 [ 40.875542] ? ext4_es_remove_extent+0x151/0x500 [ 40.880281] ? lock_release+0x970/0x970 [ 40.884240] ? kasan_check_write+0x14/0x20 [ 40.888459] ? do_raw_write_lock+0xbd/0x1b0 [ 40.892771] integrity_inode_free+0x12f/0x320 [ 40.897254] security_inode_free+0x19/0x90 [ 40.901472] __destroy_inode+0x328/0x820 [ 40.905514] ? generic_update_time+0x450/0x450 [ 40.910080] ? evict+0x5d8/0x980 [ 40.913431] ? lock_downgrade+0x900/0x900 [ 40.917563] ? __inode_wait_for_writeback+0x2cf/0x380 [ 40.922747] destroy_inode+0xda/0x200 [ 40.926532] ? __destroy_inode+0x820/0x820 [ 40.930759] ? kasan_check_write+0x14/0x20 [ 40.934981] ? do_raw_spin_lock+0xc1/0x200 [ 40.939208] evict+0x5e0/0x980 [ 40.942386] ? destroy_inode+0x200/0x200 [ 40.946431] ? iput+0x671/0xa90 [ 40.949692] ? lock_downgrade+0x900/0x900 [ 40.953841] ? kasan_check_read+0x11/0x20 [ 40.957974] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 40.962554] ? lock_downgrade+0x900/0x900 [ 40.966699] iput+0x679/0xa90 [ 40.969787] ? inode_add_lru+0x2a0/0x2a0 [ 40.973834] ? up_write+0x7b/0x220 [ 40.977368] ? up_read+0x110/0x110 [ 40.980891] ? up_read+0x110/0x110 [ 40.984440] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.989963] ? check_preemption_disabled+0x48/0x200 [ 40.994970] ext4_ioctl+0x236f/0x4210 [ 40.998756] ? ext4_ioctl_group_add+0x560/0x560 [ 41.003412] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 41.009193] ? kasan_check_read+0x11/0x20 [ 41.013325] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 41.018592] ? rcu_bh_qs+0xc0/0xc0 [ 41.022122] ? rcu_bh_qs+0xc0/0xc0 [ 41.025656] ? unwind_dump+0x190/0x190 [ 41.029544] ? is_bpf_text_address+0xd3/0x170 [ 41.034038] ? kernel_text_address+0x79/0xf0 [ 41.038437] ? __kernel_text_address+0xd/0x40 [ 41.042923] ? unwind_get_return_address+0x61/0xa0 [ 41.047842] ? __save_stack_trace+0x8d/0xf0 [ 41.052150] ? save_stack+0xa9/0xd0 [ 41.055757] ? save_stack+0x43/0xd0 [ 41.059365] ? __kasan_slab_free+0x102/0x150 [ 41.063760] ? kasan_slab_free+0xe/0x10 [ 41.067735] ? kmem_cache_free+0x83/0x290 [ 41.071865] ? putname+0xf2/0x130 [ 41.075303] ? do_sys_open+0x54d/0x700 [ 41.079173] ? __x64_sys_open+0x7e/0xc0 [ 41.083136] ? do_syscall_64+0x1b9/0x820 [ 41.087185] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.092539] ? trace_hardirqs_off+0xb8/0x310 [ 41.096934] ? kasan_check_read+0x11/0x20 [ 41.101076] ? do_raw_spin_unlock+0xa7/0x2f0 [ 41.105473] ? trace_hardirqs_on+0x310/0x310 [ 41.109874] ? kasan_check_write+0x14/0x20 [ 41.114134] ? trace_hardirqs_off+0xb8/0x310 [ 41.118529] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.124053] ? check_preemption_disabled+0x48/0x200 [ 41.129056] ? ext4_ioctl_group_add+0x560/0x560 [ 41.133746] do_vfs_ioctl+0x1de/0x1720 [ 41.137628] ? rcu_lockdep_current_cpu_online+0x1f0/0x2d0 [ 41.143157] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 41.148438] ? ioctl_preallocate+0x300/0x300 [ 41.152836] ? memset+0x31/0x40 [ 41.156115] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.161652] ? smack_file_ioctl+0x210/0x3c0 [ 41.165962] ? fget_raw+0x20/0x20 [ 41.169406] ? smack_file_lock+0x2e0/0x2e0 [ 41.173631] ? rcu_read_lock_sched_held+0x108/0x120 [ 41.178655] ? do_syscall_64+0x9a/0x820 [ 41.182619] ? do_syscall_64+0x9a/0x820 [ 41.186591] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.192124] ? security_file_ioctl+0x94/0xc0 [ 41.196524] ksys_ioctl+0xa9/0xd0 [ 41.199967] __x64_sys_ioctl+0x73/0xb0 [ 41.203842] do_syscall_64+0x1b9/0x820 [ 41.207722] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 41.213085] ? syscall_return_slowpath+0x5e0/0x5e0 [ 41.218012] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.222846] ? trace_hardirqs_on_caller+0x310/0x310 [ 41.227867] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 41.232886] ? prepare_exit_to_usermode+0x291/0x3b0 [ 41.237905] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.242745] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.247921] RIP: 0033:0x440029 [ 41.251102] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 41.269997] RSP: 002b:00007fff649df8a8 EFLAGS: 00000207 ORIG_RAX: 0000000000000010 [ 41.277704] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440029 [ 41.284969] RDX: 0000000000440029 RSI: 0000000000006611 RDI: 0000000000000003 [ 41.292225] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 41.299486] R10: 0000000000000000 R11: 0000000000000207 R12: 00000000004018b0 [ 41.306762] R13: 0000000000401940 R14: 0000000000000000 R15: 0000000000000000 [ 41.314025] Modules linked in: [ 41.317293] ---[ end trace bb79acd6af13d21f ]--- [ 41.322104] RIP: 0010:rb_erase+0x306/0x3710 [ 41.326439] Code: c7 81 28 01 00 00 f2 f2 f2 f2 c7 81 2c 01 00 00 00 f2 f2 f2 48 89 f9 65 48 8b 1c 25 28 00 00 00 48 89 5d d0 31 db 48 c1 e9 03 <42> 80 3c 01 00 0f 85 41 1c 00 00 4c 8d 48 10 4c 8b 78 08 48 b9 00 [ 41.345404] RSP: 0018:ffff8801bb3d6918 EFLAGS: 00010202 [ 41.350792] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 41.358166] RDX: 1ffff1003767ad2b RSI: ffffffff8b5a08a0 RDI: 0000000000000008 [ 41.365475] RBP: ffff8801bb3d7320 R08: dffffc0000000000 R09: fffffbfff135d5c8 [ 41.372789] R10: fffffbfff135d5c8 R11: ffffffff89aeae43 R12: ffff8801b67681f0 [ 41.380064] R13: dffffc0000000000 R14: ffff8801bb3d72f8 R15: ffff8801bb3d7438 [ 41.387388] FS: 0000000001dd9880(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000 [ 41.395652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.401564] CR2: 0000000020000700 CR3: 00000001d7d37000 CR4: 00000000001406e0 [ 41.408845] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.416152] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.423442] Kernel panic - not syncing: Fatal exception [ 41.429803] Kernel Offset: disabled [ 41.433430] Rebooting in 86400 seconds..