[info] Using makefile-style concurrent boot in runlevel 2. [ 24.910165] audit: type=1800 audit(1538348174.436:21): pid=5224 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 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 '10.128.0.56' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 38.982984] kasan: CONFIG_KASAN_INLINE enabled [ 38.987643] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 38.995118] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 39.001351] CPU: 0 PID: 5379 Comm: syz-executor068 Not tainted 4.19.0-rc6+ #39 [ 39.008688] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.018054] RIP: 0010:rb_erase+0x306/0x3710 [ 39.022366] 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 [ 39.041253] RSP: 0018:ffff8801bd466918 EFLAGS: 00010202 [ 39.046595] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 39.053844] RDX: 1ffff10037a8cd2b RSI: ffffffff8afbc8a0 RDI: 0000000000000008 [ 39.061092] RBP: ffff8801bd467320 R08: dffffc0000000000 R09: fffffbfff12d6a48 [ 39.068344] R10: fffffbfff12d6a48 R11: ffffffff896b5243 R12: ffff8801b6b861f0 [ 39.075616] R13: dffffc0000000000 R14: ffff8801bd4672f8 R15: ffff8801bd467438 [ 39.082871] FS: 0000000002449880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 39.091077] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.096949] CR2: 0000000020000080 CR3: 00000001ba81c000 CR4: 00000000001406f0 [ 39.104198] Call Trace: [ 39.106771] ? lockdep_on+0x50/0x50 [ 39.110380] ? rb_insert_color+0x1460/0x1460 [ 39.114771] ? noop_count+0x40/0x40 [ 39.118377] ? lock_pin_lock+0x350/0x350 [ 39.122419] ? noop_count+0x40/0x40 [ 39.126038] ? kasan_check_read+0x11/0x20 [ 39.130164] ? noop_count+0x40/0x40 [ 39.133788] ? noop_count+0x40/0x40 [ 39.137423] ? lock_pin_lock+0x350/0x350 [ 39.141469] ? mark_held_locks+0x130/0x130 [ 39.145691] ? check_usage_forwards+0x3e0/0x3e0 [ 39.150362] ? __bfs+0x385/0x7a0 [ 39.153713] ? noop_count+0x40/0x40 [ 39.157324] ? check_usage+0x1a9/0x790 [ 39.161189] ? lock_pin_lock+0x350/0x350 [ 39.165238] ? check_usage_forwards+0x3e0/0x3e0 [ 39.169885] ? __bfs+0x385/0x7a0 [ 39.173233] ? __lock_acquire+0x7ec/0x4ec0 [ 39.177451] ? lockdep_on+0x50/0x50 [ 39.181058] ? lock_pin_lock+0x350/0x350 [ 39.185103] ? mark_held_locks+0x130/0x130 [ 39.189315] ? kasan_check_read+0x11/0x20 [ 39.193450] ? __lock_acquire+0x2881/0x4ec0 [ 39.197755] ? mark_held_locks+0x130/0x130 [ 39.201970] ? print_usage_bug+0xc0/0xc0 [ 39.206027] ? _raw_spin_unlock+0x2c/0x50 [ 39.210156] ? graph_lock+0x170/0x170 [ 39.213963] ? ext4_exit_mballoc+0xc0/0xc0 [ 39.218181] ? __lock_acquire+0x7ec/0x4ec0 [ 39.222397] ? find_held_lock+0x36/0x1c0 [ 39.226466] ? mark_held_locks+0x130/0x130 [ 39.230683] ? lock_downgrade+0x900/0x900 [ 39.234815] ? ext4_es_scan+0x960/0x960 [ 39.238767] ? lock_release+0x970/0x970 [ 39.242730] ? do_raw_write_trylock+0x1c0/0x1c0 [ 39.247384] ? kasan_check_write+0x14/0x20 [ 39.251598] ? lock_acquire+0x1ed/0x520 [ 39.255555] ? integrity_inode_free+0x77/0x320 [ 39.260116] ? ext4_es_remove_extent+0x151/0x500 [ 39.264867] ? lock_release+0x970/0x970 [ 39.268848] ? kasan_check_write+0x14/0x20 [ 39.273065] ? do_raw_write_lock+0xbd/0x1b0 [ 39.277370] integrity_inode_free+0x12f/0x320 [ 39.281846] security_inode_free+0x19/0x90 [ 39.286063] __destroy_inode+0x328/0x820 [ 39.290102] ? generic_update_time+0x450/0x450 [ 39.294937] ? evict+0x5d8/0x980 [ 39.298284] ? lock_downgrade+0x900/0x900 [ 39.302449] ? __inode_wait_for_writeback+0x2cf/0x380 [ 39.307635] destroy_inode+0xda/0x200 [ 39.311414] ? __destroy_inode+0x820/0x820 [ 39.315653] ? kasan_check_write+0x14/0x20 [ 39.319886] ? do_raw_spin_lock+0xc1/0x200 [ 39.324104] evict+0x5e0/0x980 [ 39.327277] ? destroy_inode+0x200/0x200 [ 39.331315] ? iput+0x671/0xa90 [ 39.334588] ? lock_downgrade+0x900/0x900 [ 39.338723] ? kasan_check_read+0x11/0x20 [ 39.342855] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 39.347427] ? lock_downgrade+0x900/0x900 [ 39.351575] iput+0x679/0xa90 [ 39.354661] ? inode_add_lru+0x2a0/0x2a0 [ 39.358700] ? up_write+0x7b/0x220 [ 39.362223] ? up_read+0x110/0x110 [ 39.365740] ? up_read+0x110/0x110 [ 39.369274] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.374793] ? check_preemption_disabled+0x48/0x200 [ 39.379806] ext4_ioctl+0x236f/0x4210 [ 39.383592] ? is_bpf_text_address+0xac/0x170 [ 39.388068] ? ext4_ioctl_group_add+0x560/0x560 [ 39.392729] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 39.398508] ? kasan_check_read+0x11/0x20 [ 39.402638] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 39.407913] ? rcu_bh_qs+0xc0/0xc0 [ 39.411437] ? rcu_bh_qs+0xc0/0xc0 [ 39.414984] ? unwind_dump+0x190/0x190 [ 39.418857] ? is_bpf_text_address+0xd3/0x170 [ 39.423339] ? kernel_text_address+0x79/0xf0 [ 39.427726] ? __kernel_text_address+0xd/0x40 [ 39.432200] ? unwind_get_return_address+0x61/0xa0 [ 39.437115] ? __save_stack_trace+0x8d/0xf0 [ 39.441432] ? save_stack+0xa9/0xd0 [ 39.445045] ? save_stack+0x43/0xd0 [ 39.448658] ? __kasan_slab_free+0x102/0x150 [ 39.453086] ? kasan_slab_free+0xe/0x10 [ 39.457054] ? kmem_cache_free+0x83/0x290 [ 39.461179] ? putname+0xf2/0x130 [ 39.464615] ? do_sys_open+0x54d/0x700 [ 39.468481] ? __x64_sys_openat+0x9d/0x100 [ 39.472699] ? do_syscall_64+0x1b9/0x820 [ 39.476751] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.482097] ? trace_hardirqs_off+0xb8/0x310 [ 39.486487] ? kasan_check_read+0x11/0x20 [ 39.490684] ? do_raw_spin_unlock+0xa7/0x2f0 [ 39.495094] ? trace_hardirqs_on+0x310/0x310 [ 39.499486] ? kasan_check_write+0x14/0x20 [ 39.503720] ? trace_hardirqs_off+0xb8/0x310 [ 39.508112] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.513653] ? check_preemption_disabled+0x48/0x200 [ 39.518668] ? check_preemption_disabled+0x48/0x200 [ 39.523694] ? ext4_ioctl_group_add+0x560/0x560 [ 39.528374] do_vfs_ioctl+0x1de/0x1720 [ 39.532248] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 39.537540] ? ioctl_preallocate+0x300/0x300 [ 39.541933] ? memset+0x31/0x40 [ 39.545216] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.550739] ? smack_file_ioctl+0x210/0x3c0 [ 39.555045] ? fget_raw+0x20/0x20 [ 39.558491] ? smack_file_lock+0x2e0/0x2e0 [ 39.562720] ? do_syscall_64+0x9a/0x820 [ 39.566679] ? do_syscall_64+0x9a/0x820 [ 39.570645] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.576176] ? security_file_ioctl+0x94/0xc0 [ 39.580575] ksys_ioctl+0xa9/0xd0 [ 39.584017] __x64_sys_ioctl+0x73/0xb0 [ 39.587891] do_syscall_64+0x1b9/0x820 [ 39.591780] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 39.597146] ? syscall_return_slowpath+0x5e0/0x5e0 [ 39.602070] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.607017] ? trace_hardirqs_on_caller+0x310/0x310 [ 39.612037] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 39.617041] ? prepare_exit_to_usermode+0x291/0x3b0 [ 39.622055] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.626888] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.632072] RIP: 0033:0x440019 [ 39.635276] 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 [ 39.654164] RSP: 002b:00007ffd1cbc4688 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 39.661869] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440019 [ 39.669128] RDX: 0000000000440019 RSI: 0000000000006611 RDI: 0000000000000003 [ 39.676388] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 39.683673] R10: 0000000000000000 R11: 0000000000000213 R12: 00000000004018a0 [ 39.690931] R13: 0000000000401930 R14: 0000000000000000 R15: 0000000000000000 [ 39.698194] Modules linked in: [ 39.701579] ---[ end trace ab96f23c9b2d6de7 ]--- [ 39.706366] RIP: 0010:rb_erase+0x306/0x3710 [ 39.710671] 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 [ 39.729592] RSP: 0018:ffff8801bd466918 EFLAGS: 00010202 [ 39.734973] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 39.742238] RDX: 1ffff10037a8cd2b RSI: ffffffff8afbc8a0 RDI: 0000000000000008 [ 39.749523] RBP: ffff8801bd467320 R08: dffffc0000000000 R09: fffffbfff12d6a48 [ 39.756809] R10: fffffbfff12d6a48 R11: ffffffff896b5243 R12: ffff8801b6b861f0 [ 39.764109] R13: dffffc0000000000 R14: ffff8801bd4672f8 R15: ffff8801bd467438 [ 39.771407] FS: 0000000002449880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 39.779660] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.785556] CR2: 0000000020000080 CR3: 00000001ba81c000 CR4: 00000000001406f0 [ 39.792843] Kernel panic - not syncing: Fatal exception [ 39.799103] Kernel Offset: disabled [ 39.802728] Rebooting in 86400 seconds..