[info] Using makefile-style concurrent boot in runlevel 2. [ 23.836209] audit: type=1800 audit(1540429402.620:21): pid=5173 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 23.863282] audit: type=1800 audit(1540429402.620:22): pid=5173 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 '10.128.0.32' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 56.530029] kasan: CONFIG_KASAN_INLINE enabled [ 56.535065] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 56.542480] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 56.548721] CPU: 0 PID: 5329 Comm: syz-executor201 Not tainted 4.19.0+ #78 [ 56.555906] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.565649] RIP: 0010:rb_erase+0x306/0x3710 [ 56.570127] 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 [ 56.589167] RSP: 0018:ffff8801be7de918 EFLAGS: 00010202 [ 56.595422] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 56.603283] RDX: 1ffff10037cfbd2b RSI: ffffffff8af92020 RDI: 0000000000000008 [ 56.610994] RBP: ffff8801be7df320 R08: dffffc0000000000 R09: ffffed0037cfbe53 [ 56.618269] R10: ffffed0037cfbe53 R11: 0000000000000003 R12: ffff8801b6adf970 [ 56.625671] R13: dffffc0000000000 R14: ffff8801be7df2f8 R15: ffff8801be7df438 [ 56.633205] FS: 0000000001d26880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 56.641912] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.647931] CR2: 0000000020000080 CR3: 00000001d7e66000 CR4: 00000000001406f0 [ 56.655828] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.663262] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.670529] Call Trace: [ 56.673387] ? modules_open+0xa0/0xa0 [ 56.677194] ? rb_insert_color+0x1460/0x1460 [ 56.681954] ? noop_count+0x40/0x40 [ 56.685584] ? print_bfs_bug+0x80/0x80 [ 56.689744] ? mark_held_locks+0x130/0x130 [ 56.693986] ? kernel_text_address+0x79/0xf0 [ 56.698399] ? noop_count+0x40/0x40 [ 56.702167] ? print_bfs_bug+0x80/0x80 [ 56.706493] ? noop_count+0x40/0x40 [ 56.710335] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 56.715882] ? check_usage_forwards+0x3d0/0x3d0 [ 56.720635] ? __bfs+0x321/0x780 [ 56.724132] ? check_usage+0x1aa/0x790 [ 56.728152] ? print_bfs_bug+0x80/0x80 [ 56.732278] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 56.737736] ? check_usage_forwards+0x3d0/0x3d0 [ 56.742595] ? kasan_check_read+0x11/0x20 [ 56.746762] ? graph_lock+0x9c/0x270 [ 56.750517] ? __bfs+0x321/0x780 [ 56.754025] ? trace_event_raw_event_lock_acquire+0x440/0x440 [ 56.759941] ? lockdep_on+0x50/0x50 [ 56.763953] ? print_bfs_bug+0x80/0x80 [ 56.767851] ? kasan_check_read+0x11/0x20 [ 56.772008] ? graph_lock+0x9c/0x270 [ 56.775837] ? trace_event_raw_event_lock_acquire+0x440/0x440 [ 56.781745] ? mark_held_locks+0x130/0x130 [ 56.786218] ? kasan_check_read+0x11/0x20 [ 56.790379] ? __lock_acquire+0x2aff/0x4c20 [ 56.794826] ? mark_held_locks+0x130/0x130 [ 56.799081] ? print_usage_bug+0xc0/0xc0 [ 56.803147] ? print_usage_bug+0xc0/0xc0 [ 56.807742] ? __lock_acquire+0x62f/0x4c20 [ 56.812136] ? zap_class+0x640/0x640 [ 56.815869] ? print_usage_bug+0xc0/0xc0 [ 56.819959] ? __lock_acquire+0x62f/0x4c20 [ 56.824424] ? mark_held_locks+0x130/0x130 [ 56.828847] ? lock_downgrade+0x900/0x900 [ 56.833253] ? ext4_es_scan+0x960/0x960 [ 56.837237] ? kasan_check_read+0x11/0x20 [ 56.841402] ? do_raw_write_lock+0x14f/0x310 [ 56.846079] ? do_raw_write_trylock+0x270/0x270 [ 56.850755] ? lock_acquire+0x1ed/0x520 [ 56.854911] ? integrity_inode_free+0x77/0x320 [ 56.859625] ? ext4_es_remove_extent+0x151/0x500 [ 56.864405] ? kasan_check_read+0x11/0x20 [ 56.868729] ? do_raw_write_lock+0x14f/0x310 [ 56.873415] ? do_raw_read_unlock+0x70/0x70 [ 56.877878] ? zap_class+0x640/0x640 [ 56.881702] integrity_inode_free+0x12f/0x320 [ 56.886209] security_inode_free+0x19/0x90 [ 56.890621] __destroy_inode+0x328/0x820 [ 56.895060] ? clear_nlink+0xe0/0xe0 [ 56.898907] ? evict+0x5d8/0x980 [ 56.902386] ? lock_downgrade+0x900/0x900 [ 56.906542] ? __inode_wait_for_writeback+0x2cf/0x380 [ 56.912114] destroy_inode+0xda/0x200 [ 56.915919] ? __destroy_inode+0x820/0x820 [ 56.920152] evict+0x5e0/0x980 [ 56.923475] ? destroy_inode+0x200/0x200 [ 56.927684] ? iput+0x671/0xa90 [ 56.931155] ? lock_downgrade+0x900/0x900 [ 56.935632] ? kasan_check_read+0x11/0x20 [ 56.939990] ? do_raw_spin_trylock+0x270/0x270 [ 56.944579] ? lock_downgrade+0x900/0x900 [ 56.948732] iput+0x679/0xa90 [ 56.951838] ? inode_add_lru+0x2a0/0x2a0 [ 56.955910] ? up_write+0x7b/0x220 [ 56.959566] ? down_write_nested+0x130/0x130 [ 56.963987] ? down_write_nested+0x130/0x130 [ 56.968405] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.974087] ? check_preemption_disabled+0x48/0x280 [ 56.979391] ext4_ioctl+0x236f/0x4210 [ 56.983313] ? is_bpf_text_address+0xac/0x170 [ 56.988136] ? ext4_ioctl_group_add+0x560/0x560 [ 56.993175] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 56.998112] ? kasan_check_read+0x11/0x20 [ 57.002259] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 57.007651] ? rcu_softirq_qs+0x20/0x20 [ 57.011655] ? rcu_softirq_qs+0x20/0x20 [ 57.015636] ? unwind_dump+0x190/0x190 [ 57.019576] ? is_bpf_text_address+0xd3/0x170 [ 57.024095] ? kernel_text_address+0x79/0xf0 [ 57.028498] ? __kernel_text_address+0xd/0x40 [ 57.032994] ? unwind_get_return_address+0x61/0xa0 [ 57.037924] ? __save_stack_trace+0x8d/0xf0 [ 57.042242] ? save_stack+0xa9/0xd0 [ 57.045856] ? save_stack+0x43/0xd0 [ 57.049467] ? __kasan_slab_free+0x102/0x150 [ 57.053871] ? kasan_slab_free+0xe/0x10 [ 57.057835] ? kmem_cache_free+0x83/0x290 [ 57.061976] ? putname+0xf2/0x130 [ 57.065421] ? do_sys_open+0x54d/0x700 [ 57.069306] ? __x64_sys_openat+0x9d/0x100 [ 57.073530] ? do_syscall_64+0x1b9/0x820 [ 57.077591] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.082954] ? trace_hardirqs_off+0xb8/0x310 [ 57.087353] ? kasan_check_read+0x11/0x20 [ 57.091605] ? do_raw_spin_unlock+0xa7/0x330 [ 57.096003] ? trace_hardirqs_on+0x310/0x310 [ 57.100416] ? trace_hardirqs_off+0xb8/0x310 [ 57.104818] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.110349] ? ext4_ioctl_group_add+0x560/0x560 [ 57.115014] do_vfs_ioctl+0x1de/0x1720 [ 57.118897] ? rcu_lockdep_current_cpu_online+0x1a4/0x210 [ 57.124427] ? ioctl_preallocate+0x300/0x300 [ 57.128833] ? memset+0x31/0x40 [ 57.132111] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.137640] ? smack_file_ioctl+0x210/0x3c0 [ 57.141948] ? fget_raw+0x20/0x20 [ 57.145405] ? smack_file_lock+0x2e0/0x2e0 [ 57.149644] ? do_syscall_64+0x9a/0x820 [ 57.153605] ? do_syscall_64+0x9a/0x820 [ 57.157607] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.163154] ? security_file_ioctl+0x94/0xc0 [ 57.167556] ksys_ioctl+0xa9/0xd0 [ 57.171014] __x64_sys_ioctl+0x73/0xb0 [ 57.174903] do_syscall_64+0x1b9/0x820 [ 57.178780] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 57.184137] ? syscall_return_slowpath+0x5e0/0x5e0 [ 57.189258] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 57.194113] ? trace_hardirqs_on_caller+0x310/0x310 [ 57.199129] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 57.204137] ? prepare_exit_to_usermode+0x291/0x3b0 [ 57.209146] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 57.213989] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.219170] RIP: 0033:0x440009 [ 57.222766] 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 [ 57.242036] RSP: 002b:00007ffdffba6d68 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 57.249748] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 57.257018] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 57.264293] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 57.271572] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 57.278993] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 57.286424] Modules linked in: [ 57.289841] ---[ end trace b99a450060694b5a ]--- [ 57.294695] RIP: 0010:rb_erase+0x306/0x3710 [ 57.299043] 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 [ 57.318578] RSP: 0018:ffff8801be7de918 EFLAGS: 00010202 [ 57.323955] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 57.331383] RDX: 1ffff10037cfbd2b RSI: ffffffff8af92020 RDI: 0000000000000008 [ 57.339004] RBP: ffff8801be7df320 R08: dffffc0000000000 R09: ffffed0037cfbe53 [ 57.346327] R10: ffffed0037cfbe53 R11: 0000000000000003 R12: ffff8801b6adf970 [ 57.353910] R13: dffffc0000000000 R14: ffff8801be7df2f8 R15: ffff8801be7df438 [ 57.361517] FS: 0000000001d26880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 57.369972] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.375906] CR2: 0000000020000080 CR3: 00000001d7e66000 CR4: 00000000001406f0 [ 57.383204] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.390663] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.398128] Kernel panic - not syncing: Fatal exception [ 57.404759] Kernel Offset: disabled [ 57.408420] Rebooting in 86400 seconds..