[info] Using makefile-style concurrent boot in runlevel 2. [ 24.225770] audit: type=1800 audit(1540184699.388:21): pid=5191 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.254816] audit: type=1800 audit(1540184699.388:22): pid=5191 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 '10.128.0.87' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 56.677969] kasan: CONFIG_KASAN_INLINE enabled [ 56.682778] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 56.690277] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 56.696502] CPU: 0 PID: 5346 Comm: syz-executor083 Not tainted 4.19.0-rc8+ #296 [ 56.703974] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.713322] RIP: 0010:rb_erase+0x306/0x3710 [ 56.717630] 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 [ 56.736518] RSP: 0018:ffff8801bb286918 EFLAGS: 00010202 [ 56.741865] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 56.749128] RDX: 1ffff10037650d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 56.756377] RBP: ffff8801bb287320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 56.763668] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801b766c930 [ 56.770921] R13: dffffc0000000000 R14: ffff8801bb2872f8 R15: ffff8801bb287438 [ 56.778175] FS: 0000000000d95880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 56.786382] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.792243] CR2: 0000000020000080 CR3: 00000001d97da000 CR4: 00000000001406f0 [ 56.799496] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.806750] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.814045] Call Trace: [ 56.816629] ? lockdep_on+0x50/0x50 [ 56.820248] ? rb_insert_color+0x1460/0x1460 [ 56.824647] ? lock_downgrade+0x900/0x900 [ 56.828782] ? noop_count+0x40/0x40 [ 56.832397] ? lock_pin_lock+0x350/0x350 [ 56.836450] ? rcu_bh_qs+0xc0/0xc0 [ 56.839974] ? unwind_dump+0x190/0x190 [ 56.843854] ? kasan_check_read+0x11/0x20 [ 56.847984] ? noop_count+0x40/0x40 [ 56.851592] ? lock_pin_lock+0x350/0x350 [ 56.855636] ? mark_held_locks+0x130/0x130 [ 56.859965] ? check_usage_forwards+0x3e0/0x3e0 [ 56.864641] ? __bfs+0x385/0x7a0 [ 56.867997] ? check_usage+0x1a9/0x790 [ 56.871865] ? lock_pin_lock+0x350/0x350 [ 56.875917] ? check_usage_forwards+0x3e0/0x3e0 [ 56.880578] ? __bfs+0x385/0x7a0 [ 56.883938] ? modules_open+0xa0/0xa0 [ 56.887754] ? lockdep_on+0x50/0x50 [ 56.891366] ? lock_pin_lock+0x350/0x350 [ 56.895414] ? mark_held_locks+0x130/0x130 [ 56.899635] ? kasan_check_read+0x11/0x20 [ 56.903769] ? __lock_acquire+0x2881/0x4ec0 [ 56.908080] ? mark_held_locks+0x130/0x130 [ 56.912296] ? print_usage_bug+0xc0/0xc0 [ 56.916337] ? _raw_spin_unlock+0x2c/0x50 [ 56.920501] ? graph_lock+0x170/0x170 [ 56.924290] ? ext4_exit_mballoc+0xc0/0xc0 [ 56.928524] ? __lock_acquire+0x7ec/0x4ec0 [ 56.932742] ? find_held_lock+0x36/0x1c0 [ 56.936877] ? mark_held_locks+0x130/0x130 [ 56.941200] ? lock_downgrade+0x900/0x900 [ 56.945334] ? ext4_es_scan+0x960/0x960 [ 56.949301] ? do_raw_write_trylock+0x1c0/0x1c0 [ 56.953961] ? kasan_check_write+0x14/0x20 [ 56.958189] ? lock_acquire+0x1ed/0x520 [ 56.962146] ? integrity_inode_free+0x77/0x320 [ 56.966712] ? ext4_es_remove_extent+0x151/0x500 [ 56.971455] ? lock_release+0x970/0x970 [ 56.975416] ? kasan_check_write+0x14/0x20 [ 56.979635] ? do_raw_write_lock+0xbd/0x1e0 [ 56.983995] integrity_inode_free+0x12f/0x320 [ 56.988500] security_inode_free+0x19/0x90 [ 56.992733] __destroy_inode+0x328/0x820 [ 56.996775] ? generic_update_time+0x450/0x450 [ 57.001452] ? evict+0x5d8/0x980 [ 57.004803] ? lock_downgrade+0x900/0x900 [ 57.008940] ? __inode_wait_for_writeback+0x2cf/0x380 [ 57.014123] destroy_inode+0xda/0x200 [ 57.017937] ? __destroy_inode+0x820/0x820 [ 57.022241] ? kasan_check_write+0x14/0x20 [ 57.026468] ? do_raw_spin_lock+0xc1/0x230 [ 57.030685] evict+0x5e0/0x980 [ 57.033866] ? destroy_inode+0x200/0x200 [ 57.037911] ? iput+0x671/0xa90 [ 57.041179] ? lock_downgrade+0x900/0x900 [ 57.045362] ? kasan_check_read+0x11/0x20 [ 57.049500] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 57.054070] ? lock_downgrade+0x900/0x900 [ 57.058207] iput+0x679/0xa90 [ 57.061299] ? inode_add_lru+0x2a0/0x2a0 [ 57.065358] ? up_write+0x7b/0x220 [ 57.068887] ? up_read+0x110/0x110 [ 57.072414] ? up_read+0x110/0x110 [ 57.075952] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.081477] ? check_preemption_disabled+0x48/0x280 [ 57.086481] ext4_ioctl+0x236f/0x4210 [ 57.090266] ? is_bpf_text_address+0xac/0x170 [ 57.094742] ? ext4_ioctl_group_add+0x560/0x560 [ 57.099443] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 57.105232] ? kasan_check_read+0x11/0x20 [ 57.109368] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 57.114628] ? rcu_bh_qs+0xc0/0xc0 [ 57.118152] ? rcu_bh_qs+0xc0/0xc0 [ 57.121674] ? unwind_dump+0x190/0x190 [ 57.125548] ? is_bpf_text_address+0xd3/0x170 [ 57.130136] ? kernel_text_address+0x79/0xf0 [ 57.134531] ? __kernel_text_address+0xd/0x40 [ 57.139012] ? unwind_get_return_address+0x61/0xa0 [ 57.143924] ? __save_stack_trace+0x8d/0xf0 [ 57.148236] ? save_stack+0xa9/0xd0 [ 57.151859] ? save_stack+0x43/0xd0 [ 57.155470] ? __kasan_slab_free+0x102/0x150 [ 57.159858] ? kasan_slab_free+0xe/0x10 [ 57.163822] ? kmem_cache_free+0x83/0x290 [ 57.167965] ? putname+0xf2/0x130 [ 57.171466] ? do_sys_open+0x54d/0x700 [ 57.175351] ? __x64_sys_openat+0x9d/0x100 [ 57.179570] ? do_syscall_64+0x1b9/0x820 [ 57.183614] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.188963] ? trace_hardirqs_off+0xb8/0x310 [ 57.193352] ? kasan_check_read+0x11/0x20 [ 57.197534] ? do_raw_spin_unlock+0xa7/0x330 [ 57.201935] ? trace_hardirqs_on+0x310/0x310 [ 57.206329] ? kasan_check_write+0x14/0x20 [ 57.210545] ? trace_hardirqs_off+0xb8/0x310 [ 57.214987] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.220517] ? check_preemption_disabled+0x48/0x280 [ 57.225637] ? check_preemption_disabled+0x48/0x280 [ 57.230638] ? ext4_ioctl_group_add+0x560/0x560 [ 57.235291] do_vfs_ioctl+0x1de/0x1720 [ 57.239163] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 57.244429] ? ioctl_preallocate+0x300/0x300 [ 57.248833] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.254362] ? __fget_light+0x2e9/0x430 [ 57.258323] ? fget_raw+0x20/0x20 [ 57.261756] ? putname+0xf2/0x130 [ 57.265194] ? rcu_read_lock_sched_held+0x108/0x120 [ 57.270194] ? kmem_cache_free+0x24f/0x290 [ 57.274513] ? putname+0xf7/0x130 [ 57.277952] ? do_syscall_64+0x9a/0x820 [ 57.281916] ? do_syscall_64+0x9a/0x820 [ 57.285989] ? lockdep_hardirqs_on+0x421/0x5c0 [ 57.290558] ? security_file_ioctl+0x94/0xc0 [ 57.294949] ksys_ioctl+0xa9/0xd0 [ 57.298385] __x64_sys_ioctl+0x73/0xb0 [ 57.302255] do_syscall_64+0x1b9/0x820 [ 57.306130] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 57.311485] ? syscall_return_slowpath+0x5e0/0x5e0 [ 57.316404] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 57.321233] ? trace_hardirqs_on_caller+0x310/0x310 [ 57.326238] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 57.331240] ? prepare_exit_to_usermode+0x291/0x3b0 [ 57.336243] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 57.341071] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.346242] RIP: 0033:0x440009 [ 57.349418] 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 [ 57.368352] RSP: 002b:00007ffe45b1ec58 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 57.376160] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 57.383415] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 57.390666] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 57.397967] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 57.405223] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 57.412479] Modules linked in: [ 57.416726] ---[ end trace 211e55f1742eea04 ]--- [ 57.421545] RIP: 0010:rb_erase+0x306/0x3710 [ 57.425970] 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 [ 57.444911] RSP: 0018:ffff8801bb286918 EFLAGS: 00010202 [ 57.450261] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 57.457690] RDX: 1ffff10037650d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 57.465039] RBP: ffff8801bb287320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 57.472369] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801b766c930 [ 57.479690] R13: dffffc0000000000 R14: ffff8801bb2872f8 R15: ffff8801bb287438 [ 57.487052] FS: 0000000000d95880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 57.495312] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.501193] CR2: 0000000020000080 CR3: 00000001d97da000 CR4: 00000000001406f0 [ 57.508497] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.515907] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.523165] Kernel panic - not syncing: Fatal exception [ 57.529495] Kernel Offset: disabled [ 57.533118] Rebooting in 86400 seconds..