[info] Using makefile-style concurrent boot in runlevel 2. [ 24.544991] audit: type=1800 audit(1539483121.703:21): pid=5188 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.572998] audit: type=1800 audit(1539483121.703:22): pid=5188 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 '10.128.10.32' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 41.949828] kasan: CONFIG_KASAN_INLINE enabled [ 41.954518] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 41.961940] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 41.968226] CPU: 0 PID: 5345 Comm: syz-executor256 Not tainted 4.19.0-rc7+ #140 [ 41.975841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.985193] RIP: 0010:rb_erase+0x306/0x3710 [ 41.989499] 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 [ 42.008418] RSP: 0018:ffff8801d8efe918 EFLAGS: 00010202 [ 42.013765] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 42.021032] RDX: 1ffff1003b1dfd2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 42.028303] RBP: ffff8801d8eff320 R08: dffffc0000000000 R09: fffffbfff12d69a0 [ 42.035595] R10: fffffbfff12d69a0 R11: ffffffff896b4d03 R12: ffff8801c44064b0 [ 42.042863] R13: dffffc0000000000 R14: ffff8801d8eff2f8 R15: ffff8801d8eff438 [ 42.050132] FS: 0000000000e9e880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 42.058342] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.064214] CR2: 0000000020000080 CR3: 00000001d92ef000 CR4: 00000000001406f0 [ 42.071470] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.078745] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.086013] Call Trace: [ 42.088606] ? lockdep_on+0x50/0x50 [ 42.092218] ? rb_insert_color+0x1460/0x1460 [ 42.096614] ? noop_count+0x40/0x40 [ 42.100246] ? lock_pin_lock+0x350/0x350 [ 42.104292] ? noop_count+0x40/0x40 [ 42.107928] ? kasan_check_read+0x11/0x20 [ 42.112066] ? noop_count+0x40/0x40 [ 42.115677] ? noop_count+0x40/0x40 [ 42.119308] ? lock_pin_lock+0x350/0x350 [ 42.123356] ? mark_held_locks+0x130/0x130 [ 42.127587] ? check_usage_forwards+0x3e0/0x3e0 [ 42.132237] ? __bfs+0x385/0x7a0 [ 42.135583] ? noop_count+0x40/0x40 [ 42.139198] ? check_usage+0x1a9/0x790 [ 42.143068] ? lock_pin_lock+0x350/0x350 [ 42.147115] ? check_usage_forwards+0x3e0/0x3e0 [ 42.151765] ? __bfs+0x385/0x7a0 [ 42.155115] ? __lock_acquire+0x7ec/0x4ec0 [ 42.159333] ? lockdep_on+0x50/0x50 [ 42.162953] ? lock_pin_lock+0x350/0x350 [ 42.167022] ? mark_held_locks+0x130/0x130 [ 42.171260] ? kasan_check_read+0x11/0x20 [ 42.175396] ? __lock_acquire+0x2881/0x4ec0 [ 42.179710] ? mark_held_locks+0x130/0x130 [ 42.183929] ? print_usage_bug+0xc0/0xc0 [ 42.188013] ? _raw_spin_unlock+0x2c/0x50 [ 42.192146] ? graph_lock+0x170/0x170 [ 42.195932] ? ext4_exit_mballoc+0xc0/0xc0 [ 42.200150] ? __lock_acquire+0x7ec/0x4ec0 [ 42.204399] ? find_held_lock+0x36/0x1c0 [ 42.208448] ? mark_held_locks+0x130/0x130 [ 42.212665] ? lock_downgrade+0x900/0x900 [ 42.216816] ? ext4_es_scan+0x960/0x960 [ 42.220790] ? lock_release+0x970/0x970 [ 42.224750] ? do_raw_write_trylock+0x1c0/0x1c0 [ 42.229405] ? kasan_check_write+0x14/0x20 [ 42.233624] ? lock_acquire+0x1ed/0x520 [ 42.237584] ? integrity_inode_free+0x77/0x320 [ 42.242148] ? ext4_es_remove_extent+0x151/0x500 [ 42.246914] ? lock_release+0x970/0x970 [ 42.250913] ? kasan_check_write+0x14/0x20 [ 42.255148] ? do_raw_write_lock+0xbd/0x1b0 [ 42.259458] integrity_inode_free+0x12f/0x320 [ 42.263938] security_inode_free+0x19/0x90 [ 42.268159] __destroy_inode+0x328/0x820 [ 42.272206] ? generic_update_time+0x450/0x450 [ 42.276771] ? evict+0x5d8/0x980 [ 42.280121] ? lock_downgrade+0x900/0x900 [ 42.284268] ? __inode_wait_for_writeback+0x2cf/0x380 [ 42.289447] destroy_inode+0xda/0x200 [ 42.293229] ? __destroy_inode+0x820/0x820 [ 42.297459] ? kasan_check_write+0x14/0x20 [ 42.301675] ? do_raw_spin_lock+0xc1/0x200 [ 42.305912] evict+0x5e0/0x980 [ 42.309088] ? destroy_inode+0x200/0x200 [ 42.313129] ? iput+0x671/0xa90 [ 42.316397] ? lock_downgrade+0x900/0x900 [ 42.320528] ? kasan_check_read+0x11/0x20 [ 42.324672] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 42.329237] ? lock_downgrade+0x900/0x900 [ 42.333382] iput+0x679/0xa90 [ 42.336477] ? inode_add_lru+0x2a0/0x2a0 [ 42.340521] ? up_write+0x7b/0x220 [ 42.344057] ? up_read+0x110/0x110 [ 42.347591] ? up_read+0x110/0x110 [ 42.351115] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 42.356639] ? check_preemption_disabled+0x48/0x200 [ 42.361643] ext4_ioctl+0x236f/0x4210 [ 42.365432] ? is_bpf_text_address+0xac/0x170 [ 42.369910] ? ext4_ioctl_group_add+0x560/0x560 [ 42.374564] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 42.380341] ? kasan_check_read+0x11/0x20 [ 42.384480] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 42.389738] ? rcu_bh_qs+0xc0/0xc0 [ 42.393262] ? rcu_bh_qs+0xc0/0xc0 [ 42.396786] ? unwind_dump+0x190/0x190 [ 42.400676] ? is_bpf_text_address+0xd3/0x170 [ 42.405156] ? kernel_text_address+0x79/0xf0 [ 42.409562] ? __kernel_text_address+0xd/0x40 [ 42.414056] ? unwind_get_return_address+0x61/0xa0 [ 42.418989] ? __save_stack_trace+0x8d/0xf0 [ 42.423303] ? save_stack+0xa9/0xd0 [ 42.426912] ? save_stack+0x43/0xd0 [ 42.430520] ? __kasan_slab_free+0x102/0x150 [ 42.434909] ? kasan_slab_free+0xe/0x10 [ 42.438871] ? kmem_cache_free+0x83/0x290 [ 42.443006] ? putname+0xf2/0x130 [ 42.446445] ? do_sys_open+0x54d/0x700 [ 42.450312] ? __x64_sys_openat+0x9d/0x100 [ 42.454530] ? do_syscall_64+0x1b9/0x820 [ 42.458575] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.463939] ? trace_hardirqs_off+0xb8/0x310 [ 42.468332] ? kasan_check_read+0x11/0x20 [ 42.472462] ? do_raw_spin_unlock+0xa7/0x2f0 [ 42.476855] ? trace_hardirqs_on+0x310/0x310 [ 42.481244] ? kasan_check_write+0x14/0x20 [ 42.485461] ? trace_hardirqs_off+0xb8/0x310 [ 42.489855] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 42.495387] ? check_preemption_disabled+0x48/0x200 [ 42.500392] ? check_preemption_disabled+0x48/0x200 [ 42.505410] ? ext4_ioctl_group_add+0x560/0x560 [ 42.510097] do_vfs_ioctl+0x1de/0x1720 [ 42.513999] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 42.519276] ? ioctl_preallocate+0x300/0x300 [ 42.523668] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 42.529191] ? __fget_light+0x2e9/0x430 [ 42.533177] ? fget_raw+0x20/0x20 [ 42.536643] ? putname+0xf2/0x130 [ 42.540092] ? rcu_read_lock_sched_held+0x108/0x120 [ 42.545089] ? kmem_cache_free+0x24f/0x290 [ 42.549308] ? putname+0xf7/0x130 [ 42.552745] ? do_syscall_64+0x9a/0x820 [ 42.556705] ? do_syscall_64+0x9a/0x820 [ 42.560677] ? lockdep_hardirqs_on+0x421/0x5c0 [ 42.565247] ? security_file_ioctl+0x94/0xc0 [ 42.569639] ksys_ioctl+0xa9/0xd0 [ 42.573077] __x64_sys_ioctl+0x73/0xb0 [ 42.576964] do_syscall_64+0x1b9/0x820 [ 42.580850] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 42.586201] ? syscall_return_slowpath+0x5e0/0x5e0 [ 42.591111] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.595936] ? trace_hardirqs_on_caller+0x310/0x310 [ 42.600936] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 42.605934] ? prepare_exit_to_usermode+0x291/0x3b0 [ 42.610934] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.615776] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.620962] RIP: 0033:0x440009 [ 42.624137] 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 [ 42.643036] RSP: 002b:00007ffd75291c28 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 42.650727] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 42.657977] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 42.665241] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 42.672494] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 42.679746] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 42.687014] Modules linked in: [ 42.690319] ---[ end trace 09defdcdd69466a3 ]--- [ 42.695100] RIP: 0010:rb_erase+0x306/0x3710 [ 42.699501] 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 [ 42.718446] RSP: 0018:ffff8801d8efe918 EFLAGS: 00010202 [ 42.723809] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 42.731190] RDX: 1ffff1003b1dfd2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 42.738496] RBP: ffff8801d8eff320 R08: dffffc0000000000 R09: fffffbfff12d69a0 [ 42.745794] R10: fffffbfff12d69a0 R11: ffffffff896b4d03 R12: ffff8801c44064b0 [ 42.753059] R13: dffffc0000000000 R14: ffff8801d8eff2f8 R15: ffff8801d8eff438 [ 42.760361] FS: 0000000000e9e880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 42.768619] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.774486] CR2: 0000000020000080 CR3: 00000001d92ef000 CR4: 00000000001406f0 [ 42.781775] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.789079] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.796394] Kernel panic - not syncing: Fatal exception [ 42.802632] Kernel Offset: disabled [ 42.806273] Rebooting in 86400 seconds..