[info] Using makefile-style concurrent boot in runlevel 2. [ 23.878832] audit: type=1800 audit(1539771539.907:21): pid=5185 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 23.909030] audit: type=1800 audit(1539771539.917:22): pid=5185 uid=0 auid=4294967295 ses=4294967295 subj==unconfined 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 '10.128.10.40' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 67.437653] kasan: CONFIG_KASAN_INLINE enabled [ 67.442384] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 67.449805] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 67.456061] CPU: 1 PID: 5342 Comm: syz-executor206 Not tainted 4.19.0-rc7+ #264 [ 67.463488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.472835] RIP: 0010:rb_erase+0x306/0x3710 [ 67.477145] 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 [ 67.496040] RSP: 0018:ffff8801c747e918 EFLAGS: 00010202 [ 67.501401] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 67.508662] RDX: 1ffff10038e8fd2b RSI: ffffffff8afc5020 RDI: 0000000000000008 [ 67.515921] RBP: ffff8801c747f320 R08: dffffc0000000000 R09: fffffbfff12d68f0 [ 67.523179] R10: fffffbfff12d68f0 R11: ffffffff896b4783 R12: ffff8801b7258970 [ 67.530438] R13: dffffc0000000000 R14: ffff8801c747f2f8 R15: ffff8801c747f438 [ 67.537775] FS: 0000000001f30880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 67.546000] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.551868] CR2: 00000000200002c0 CR3: 00000001d8454000 CR4: 00000000001406e0 [ 67.559210] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.566474] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.573736] Call Trace: [ 67.576599] ? lockdep_on+0x50/0x50 [ 67.580346] ? rb_insert_color+0x1460/0x1460 [ 67.584746] ? lock_downgrade+0x900/0x900 [ 67.588879] ? noop_count+0x40/0x40 [ 67.592489] ? lock_pin_lock+0x350/0x350 [ 67.596950] ? rcu_bh_qs+0xc0/0xc0 [ 67.600479] ? unwind_dump+0x190/0x190 [ 67.604356] ? kasan_check_read+0x11/0x20 [ 67.608495] ? noop_count+0x40/0x40 [ 67.612105] ? lock_pin_lock+0x350/0x350 [ 67.616149] ? mark_held_locks+0x130/0x130 [ 67.620373] ? check_usage_forwards+0x3e0/0x3e0 [ 67.625023] ? __bfs+0x385/0x7a0 [ 67.628493] ? check_usage+0x1a9/0x790 [ 67.632371] ? lock_pin_lock+0x350/0x350 [ 67.636418] ? check_usage_forwards+0x3e0/0x3e0 [ 67.641552] ? __bfs+0x385/0x7a0 [ 67.644906] ? modules_open+0xa0/0xa0 [ 67.648690] ? lockdep_on+0x50/0x50 [ 67.652305] ? lock_pin_lock+0x350/0x350 [ 67.656355] ? mark_held_locks+0x130/0x130 [ 67.660576] ? kasan_check_read+0x11/0x20 [ 67.664705] ? __lock_acquire+0x2881/0x4ec0 [ 67.669012] ? mark_held_locks+0x130/0x130 [ 67.673241] ? print_usage_bug+0xc0/0xc0 [ 67.677288] ? _raw_spin_unlock+0x2c/0x50 [ 67.681420] ? graph_lock+0x170/0x170 [ 67.685214] ? ext4_exit_mballoc+0xc0/0xc0 [ 67.689453] ? __lock_acquire+0x7ec/0x4ec0 [ 67.693686] ? find_held_lock+0x36/0x1c0 [ 67.697735] ? mark_held_locks+0x130/0x130 [ 67.702029] ? lock_downgrade+0x900/0x900 [ 67.706172] ? ext4_es_scan+0x960/0x960 [ 67.710136] ? lock_release+0x970/0x970 [ 67.714098] ? do_raw_write_trylock+0x1c0/0x1c0 [ 67.718753] ? kasan_check_write+0x14/0x20 [ 67.722975] ? lock_acquire+0x1ed/0x520 [ 67.726931] ? integrity_inode_free+0x77/0x320 [ 67.731502] ? ext4_es_remove_extent+0x151/0x500 [ 67.736243] ? lock_release+0x970/0x970 [ 67.740211] ? kasan_check_write+0x14/0x20 [ 67.744430] ? do_raw_write_lock+0xbd/0x1b0 [ 67.748797] integrity_inode_free+0x12f/0x320 [ 67.753296] security_inode_free+0x19/0x90 [ 67.757534] __destroy_inode+0x328/0x820 [ 67.761580] ? generic_update_time+0x450/0x450 [ 67.766146] ? evict+0x5d8/0x980 [ 67.769500] ? lock_downgrade+0x900/0x900 [ 67.773634] ? __inode_wait_for_writeback+0x2cf/0x380 [ 67.778814] destroy_inode+0xda/0x200 [ 67.782598] ? __destroy_inode+0x820/0x820 [ 67.786818] ? kasan_check_write+0x14/0x20 [ 67.791038] ? do_raw_spin_lock+0xc1/0x200 [ 67.795256] evict+0x5e0/0x980 [ 67.798433] ? destroy_inode+0x200/0x200 [ 67.802484] ? iput+0x671/0xa90 [ 67.805749] ? lock_downgrade+0x900/0x900 [ 67.809885] ? kasan_check_read+0x11/0x20 [ 67.814018] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 67.818583] ? lock_downgrade+0x900/0x900 [ 67.822720] iput+0x679/0xa90 [ 67.825812] ? inode_add_lru+0x2a0/0x2a0 [ 67.829873] ? up_write+0x7b/0x220 [ 67.833404] ? up_read+0x110/0x110 [ 67.836925] ? up_read+0x110/0x110 [ 67.840461] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.846098] ? check_preemption_disabled+0x48/0x200 [ 67.851107] ext4_ioctl+0x236f/0x4210 [ 67.854897] ? is_bpf_text_address+0xac/0x170 [ 67.859398] ? ext4_ioctl_group_add+0x560/0x560 [ 67.864072] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 67.869860] ? kasan_check_read+0x11/0x20 [ 67.874009] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 67.879271] ? rcu_bh_qs+0xc0/0xc0 [ 67.882801] ? rcu_bh_qs+0xc0/0xc0 [ 67.886326] ? unwind_dump+0x190/0x190 [ 67.890203] ? is_bpf_text_address+0xd3/0x170 [ 67.894692] ? kernel_text_address+0x79/0xf0 [ 67.899083] ? __kernel_text_address+0xd/0x40 [ 67.903597] ? unwind_get_return_address+0x61/0xa0 [ 67.908517] ? __save_stack_trace+0x8d/0xf0 [ 67.912965] ? save_stack+0xa9/0xd0 [ 67.916585] ? save_stack+0x43/0xd0 [ 67.920201] ? __kasan_slab_free+0x102/0x150 [ 67.924593] ? kasan_slab_free+0xe/0x10 [ 67.928551] ? kmem_cache_free+0x83/0x290 [ 67.932691] ? putname+0xf2/0x130 [ 67.936139] ? do_sys_open+0x54d/0x700 [ 67.940009] ? __x64_sys_openat+0x9d/0x100 [ 67.944226] ? do_syscall_64+0x1b9/0x820 [ 67.948276] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 67.953629] ? trace_hardirqs_off+0xb8/0x310 [ 67.958023] ? kasan_check_read+0x11/0x20 [ 67.962158] ? do_raw_spin_unlock+0xa7/0x2f0 [ 67.966560] ? trace_hardirqs_on+0x310/0x310 [ 67.971081] ? kasan_check_write+0x14/0x20 [ 67.975303] ? trace_hardirqs_off+0xb8/0x310 [ 67.979701] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.985231] ? check_preemption_disabled+0x48/0x200 [ 67.990234] ? check_preemption_disabled+0x48/0x200 [ 67.995238] ? ext4_ioctl_group_add+0x560/0x560 [ 67.999899] do_vfs_ioctl+0x1de/0x1720 [ 68.003771] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 68.009049] ? ioctl_preallocate+0x300/0x300 [ 68.013466] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 68.018989] ? __fget_light+0x2e9/0x430 [ 68.022982] ? fget_raw+0x20/0x20 [ 68.026418] ? putname+0xf2/0x130 [ 68.029862] ? rcu_read_lock_sched_held+0x108/0x120 [ 68.034890] ? kmem_cache_free+0x24f/0x290 [ 68.039108] ? putname+0xf7/0x130 [ 68.042553] ? do_syscall_64+0x9a/0x820 [ 68.046512] ? do_syscall_64+0x9a/0x820 [ 68.050476] ? lockdep_hardirqs_on+0x421/0x5c0 [ 68.055043] ? security_file_ioctl+0x94/0xc0 [ 68.059438] ksys_ioctl+0xa9/0xd0 [ 68.062889] __x64_sys_ioctl+0x73/0xb0 [ 68.066763] do_syscall_64+0x1b9/0x820 [ 68.070645] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 68.075994] ? syscall_return_slowpath+0x5e0/0x5e0 [ 68.080910] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 68.085739] ? trace_hardirqs_on_caller+0x310/0x310 [ 68.090741] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 68.095741] ? prepare_exit_to_usermode+0x291/0x3b0 [ 68.100746] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 68.105579] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 68.110752] RIP: 0033:0x440019 [ 68.113929] 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 [ 68.132896] RSP: 002b:00007ffd68e53e28 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 68.140596] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440019 [ 68.147856] RDX: 0000000000440019 RSI: 0000000000006611 RDI: 0000000000000003 [ 68.155173] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 68.162429] R10: 0000000000000000 R11: 0000000000000213 R12: 00000000004018a0 [ 68.169687] R13: 0000000000401930 R14: 0000000000000000 R15: 0000000000000000 [ 68.176944] Modules linked in: [ 68.180258] ---[ end trace 07f34aaa91e1feb2 ]--- [ 68.185025] RIP: 0010:rb_erase+0x306/0x3710 [ 68.189413] 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 [ 68.208514] RSP: 0018:ffff8801c747e918 EFLAGS: 00010202 [ 68.214010] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 68.221315] RDX: 1ffff10038e8fd2b RSI: ffffffff8afc5020 RDI: 0000000000000008 [ 68.228582] RBP: ffff8801c747f320 R08: dffffc0000000000 R09: fffffbfff12d68f0 [ 68.235982] R10: fffffbfff12d68f0 R11: ffffffff896b4783 R12: ffff8801b7258970 [ 68.243295] R13: dffffc0000000000 R14: ffff8801c747f2f8 R15: ffff8801c747f438 [ 68.250605] FS: 0000000001f30880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 68.258828] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.264838] CR2: 00000000200002c0 CR3: 00000001d8454000 CR4: 00000000001406e0 [ 68.272152] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.279490] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.286757] Kernel panic - not syncing: Fatal exception [ 68.292958] Kernel Offset: disabled [ 68.296643] Rebooting in 86400 seconds..