[info] Using makefile-style concurrent boot in runlevel 2. [ 23.370561] audit: type=1800 audit(1539967250.455:21): pid=5174 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 23.397290] audit: type=1800 audit(1539967250.465:22): pid=5174 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 '10.128.0.104' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 50.010390] kasan: CONFIG_KASAN_INLINE enabled [ 50.015259] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 50.022827] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 50.029061] CPU: 0 PID: 5331 Comm: syz-executor996 Not tainted 4.19.0-rc8+ #291 [ 50.036491] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.045841] RIP: 0010:rb_erase+0x306/0x3710 [ 50.050152] 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 [ 50.069036] RSP: 0018:ffff8801bb72e918 EFLAGS: 00010202 [ 50.074384] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 50.081636] RDX: 1ffff100376e5d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 50.088887] RBP: ffff8801bb72f320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 50.096140] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801b72ec970 [ 50.103713] R13: dffffc0000000000 R14: ffff8801bb72f2f8 R15: ffff8801bb72f438 [ 50.111059] FS: 0000000001519880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 50.119276] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.125138] CR2: 0000000020000080 CR3: 00000001d9102000 CR4: 00000000001406f0 [ 50.132407] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.139661] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.146914] Call Trace: [ 50.149494] ? lockdep_on+0x50/0x50 [ 50.153116] ? rb_insert_color+0x1460/0x1460 [ 50.157512] ? lock_downgrade+0x900/0x900 [ 50.161644] ? noop_count+0x40/0x40 [ 50.165258] ? lock_pin_lock+0x350/0x350 [ 50.169312] ? rcu_bh_qs+0xc0/0xc0 [ 50.172843] ? unwind_dump+0x190/0x190 [ 50.176721] ? kasan_check_read+0x11/0x20 [ 50.180852] ? noop_count+0x40/0x40 [ 50.184462] ? lock_pin_lock+0x350/0x350 [ 50.188506] ? mark_held_locks+0x130/0x130 [ 50.192835] ? check_usage_forwards+0x3e0/0x3e0 [ 50.197535] ? __bfs+0x385/0x7a0 [ 50.200901] ? check_usage+0x1a9/0x790 [ 50.204889] ? lock_pin_lock+0x350/0x350 [ 50.208940] ? check_usage_forwards+0x3e0/0x3e0 [ 50.213594] ? __bfs+0x385/0x7a0 [ 50.216956] ? modules_open+0xa0/0xa0 [ 50.220741] ? lockdep_on+0x50/0x50 [ 50.224352] ? lock_pin_lock+0x350/0x350 [ 50.228404] ? mark_held_locks+0x130/0x130 [ 50.232636] ? kasan_check_read+0x11/0x20 [ 50.236844] ? __lock_acquire+0x2881/0x4ec0 [ 50.241220] ? mark_held_locks+0x130/0x130 [ 50.245447] ? print_usage_bug+0xc0/0xc0 [ 50.249491] ? _raw_spin_unlock+0x2c/0x50 [ 50.253634] ? graph_lock+0x170/0x170 [ 50.257428] ? ext4_exit_mballoc+0xc0/0xc0 [ 50.261648] ? __lock_acquire+0x7ec/0x4ec0 [ 50.265995] ? find_held_lock+0x36/0x1c0 [ 50.270045] ? mark_held_locks+0x130/0x130 [ 50.274266] ? lock_downgrade+0x900/0x900 [ 50.278397] ? ext4_es_scan+0x960/0x960 [ 50.282372] ? lock_release+0x970/0x970 [ 50.286345] ? do_raw_write_trylock+0x1c0/0x1c0 [ 50.291003] ? kasan_check_write+0x14/0x20 [ 50.295226] ? lock_acquire+0x1ed/0x520 [ 50.299185] ? integrity_inode_free+0x77/0x320 [ 50.303756] ? ext4_es_remove_extent+0x151/0x500 [ 50.308499] ? lock_release+0x970/0x970 [ 50.312465] ? kasan_check_write+0x14/0x20 [ 50.316683] ? do_raw_write_lock+0xbd/0x1b0 [ 50.320998] integrity_inode_free+0x12f/0x320 [ 50.325532] security_inode_free+0x19/0x90 [ 50.329761] __destroy_inode+0x328/0x820 [ 50.333809] ? generic_update_time+0x450/0x450 [ 50.338381] ? evict+0x5d8/0x980 [ 50.341733] ? lock_downgrade+0x900/0x900 [ 50.345869] ? __inode_wait_for_writeback+0x2cf/0x380 [ 50.351044] destroy_inode+0xda/0x200 [ 50.354831] ? __destroy_inode+0x820/0x820 [ 50.359049] ? kasan_check_write+0x14/0x20 [ 50.363271] ? do_raw_spin_lock+0xc1/0x200 [ 50.367492] evict+0x5e0/0x980 [ 50.370673] ? destroy_inode+0x200/0x200 [ 50.374721] ? iput+0x671/0xa90 [ 50.377987] ? lock_downgrade+0x900/0x900 [ 50.382122] ? kasan_check_read+0x11/0x20 [ 50.386255] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 50.390826] ? lock_downgrade+0x900/0x900 [ 50.394964] iput+0x679/0xa90 [ 50.398060] ? inode_add_lru+0x2a0/0x2a0 [ 50.402172] ? up_write+0x7b/0x220 [ 50.405705] ? up_read+0x110/0x110 [ 50.409301] ? up_read+0x110/0x110 [ 50.412835] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.418359] ? check_preemption_disabled+0x48/0x200 [ 50.423365] ext4_ioctl+0x236f/0x4210 [ 50.427156] ? is_bpf_text_address+0xac/0x170 [ 50.431643] ? ext4_ioctl_group_add+0x560/0x560 [ 50.436301] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 50.442082] ? kasan_check_read+0x11/0x20 [ 50.446220] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 50.451481] ? rcu_bh_qs+0xc0/0xc0 [ 50.455006] ? rcu_bh_qs+0xc0/0xc0 [ 50.458594] ? unwind_dump+0x190/0x190 [ 50.462484] ? is_bpf_text_address+0xd3/0x170 [ 50.466962] ? kernel_text_address+0x79/0xf0 [ 50.471354] ? __kernel_text_address+0xd/0x40 [ 50.475834] ? unwind_get_return_address+0x61/0xa0 [ 50.480749] ? __save_stack_trace+0x8d/0xf0 [ 50.485130] ? save_stack+0xa9/0xd0 [ 50.488747] ? save_stack+0x43/0xd0 [ 50.492360] ? __kasan_slab_free+0x102/0x150 [ 50.496754] ? kasan_slab_free+0xe/0x10 [ 50.500714] ? kmem_cache_free+0x83/0x290 [ 50.504944] ? putname+0xf2/0x130 [ 50.508388] ? do_sys_open+0x54d/0x700 [ 50.512263] ? __x64_sys_openat+0x9d/0x100 [ 50.516486] ? do_syscall_64+0x1b9/0x820 [ 50.520530] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.525889] ? trace_hardirqs_off+0xb8/0x310 [ 50.530279] ? kasan_check_read+0x11/0x20 [ 50.534463] ? do_raw_spin_unlock+0xa7/0x2f0 [ 50.538867] ? trace_hardirqs_on+0x310/0x310 [ 50.543266] ? kasan_check_write+0x14/0x20 [ 50.547489] ? trace_hardirqs_off+0xb8/0x310 [ 50.551924] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.557499] ? check_preemption_disabled+0x48/0x200 [ 50.562510] ? check_preemption_disabled+0x48/0x200 [ 50.567521] ? ext4_ioctl_group_add+0x560/0x560 [ 50.572186] do_vfs_ioctl+0x1de/0x1720 [ 50.576067] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 50.581331] ? ioctl_preallocate+0x300/0x300 [ 50.585768] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.591360] ? __fget_light+0x2e9/0x430 [ 50.595326] ? fget_raw+0x20/0x20 [ 50.598763] ? putname+0xf2/0x130 [ 50.602201] ? rcu_read_lock_sched_held+0x108/0x120 [ 50.607202] ? kmem_cache_free+0x24f/0x290 [ 50.611468] ? putname+0xf7/0x130 [ 50.614921] ? do_syscall_64+0x9a/0x820 [ 50.618880] ? do_syscall_64+0x9a/0x820 [ 50.622839] ? lockdep_hardirqs_on+0x421/0x5c0 [ 50.627408] ? security_file_ioctl+0x94/0xc0 [ 50.631805] ksys_ioctl+0xa9/0xd0 [ 50.635248] __x64_sys_ioctl+0x73/0xb0 [ 50.639121] do_syscall_64+0x1b9/0x820 [ 50.642997] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 50.648346] ? syscall_return_slowpath+0x5e0/0x5e0 [ 50.653260] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.658086] ? trace_hardirqs_on_caller+0x310/0x310 [ 50.663089] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 50.668143] ? prepare_exit_to_usermode+0x291/0x3b0 [ 50.673154] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.677993] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.683169] RIP: 0033:0x440009 [ 50.686348] 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 [ 50.705235] RSP: 002b:00007ffe1718e2e8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 50.712930] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 50.720185] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 50.727437] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 50.734791] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 50.742048] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 50.749304] Modules linked in: [ 50.752594] ---[ end trace d4fe205aa55954d3 ]--- [ 50.757373] RIP: 0010:rb_erase+0x306/0x3710 [ 50.761679] 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 [ 50.780770] RSP: 0018:ffff8801bb72e918 EFLAGS: 00010202 [ 50.786354] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 50.793979] RDX: 1ffff100376e5d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 50.801276] RBP: ffff8801bb72f320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 50.808561] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801b72ec970 [ 50.815844] R13: dffffc0000000000 R14: ffff8801bb72f2f8 R15: ffff8801bb72f438 [ 50.823133] FS: 0000000001519880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 50.831363] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.837343] CR2: 0000000020000080 CR3: 00000001d9102000 CR4: 00000000001406f0 [ 50.844674] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.851930] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.859214] Kernel panic - not syncing: Fatal exception [ 50.865486] Kernel Offset: disabled [ 50.869112] Rebooting in 86400 seconds..