[info] Using makefile-style concurrent boot in runlevel 2. [ 24.385868] audit: type=1800 audit(1538163149.365:21): pid=5192 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.412986] audit: type=1800 audit(1538163149.365:22): pid=5192 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 '10.128.0.40' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 37.101360] kasan: CONFIG_KASAN_INLINE enabled [ 37.106214] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 37.113772] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 37.120003] CPU: 1 PID: 5347 Comm: syz-executor808 Not tainted 4.19.0-rc5+ #235 [ 37.127428] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.136779] RIP: 0010:rb_erase+0x306/0x3710 [ 37.141083] 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 [ 37.160110] RSP: 0018:ffff8801be28e918 EFLAGS: 00010202 [ 37.165456] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 37.172709] RDX: 1ffff10037c51d2b RSI: ffffffff8afc08a0 RDI: 0000000000000008 [ 37.179967] RBP: ffff8801be28f320 R08: dffffc0000000000 R09: fffffbfff12d6a90 [ 37.187225] R10: fffffbfff12d6a90 R11: ffffffff896b5483 R12: ffff8801b72751f0 [ 37.194478] R13: dffffc0000000000 R14: ffff8801be28f2f8 R15: ffff8801be28f438 [ 37.201730] FS: 00000000008f9880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 37.209946] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.215917] CR2: 0000000020000080 CR3: 00000001bb9f1000 CR4: 00000000001406e0 [ 37.223174] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.230426] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.237687] Call Trace: [ 37.240265] ? lockdep_on+0x50/0x50 [ 37.243898] ? rb_insert_color+0x1460/0x1460 [ 37.248289] ? noop_count+0x40/0x40 [ 37.251903] ? lock_pin_lock+0x350/0x350 [ 37.256013] ? noop_count+0x40/0x40 [ 37.259676] ? kasan_check_read+0x11/0x20 [ 37.263811] ? noop_count+0x40/0x40 [ 37.267422] ? noop_count+0x40/0x40 [ 37.271030] ? lock_pin_lock+0x350/0x350 [ 37.275076] ? mark_held_locks+0x130/0x130 [ 37.279330] ? check_usage_forwards+0x3e0/0x3e0 [ 37.284143] ? __bfs+0x385/0x7a0 [ 37.287559] ? noop_count+0x40/0x40 [ 37.291168] ? check_usage+0x1a9/0x790 [ 37.295042] ? lock_pin_lock+0x350/0x350 [ 37.299243] ? check_usage_forwards+0x3e0/0x3e0 [ 37.303895] ? __bfs+0x385/0x7a0 [ 37.307256] ? __lock_acquire+0x7ec/0x4ec0 [ 37.311476] ? lockdep_on+0x50/0x50 [ 37.315090] ? lock_pin_lock+0x350/0x350 [ 37.319147] ? mark_held_locks+0x130/0x130 [ 37.323476] ? kasan_check_read+0x11/0x20 [ 37.327609] ? __lock_acquire+0x2881/0x4ec0 [ 37.331915] ? mark_held_locks+0x130/0x130 [ 37.336290] ? print_usage_bug+0xc0/0xc0 [ 37.340336] ? _raw_spin_unlock+0x2c/0x50 [ 37.344583] ? graph_lock+0x170/0x170 [ 37.348369] ? ext4_exit_mballoc+0xc0/0xc0 [ 37.352584] ? __lock_acquire+0x7ec/0x4ec0 [ 37.356820] ? find_held_lock+0x36/0x1c0 [ 37.360866] ? mark_held_locks+0x130/0x130 [ 37.365088] ? lock_downgrade+0x900/0x900 [ 37.369309] ? ext4_es_scan+0x960/0x960 [ 37.373276] ? do_raw_write_trylock+0x1c0/0x1c0 [ 37.377941] ? kasan_check_write+0x14/0x20 [ 37.382153] ? lock_acquire+0x1ed/0x520 [ 37.386109] ? integrity_inode_free+0x77/0x320 [ 37.390673] ? ext4_es_remove_extent+0x151/0x500 [ 37.395409] ? lock_release+0x970/0x970 [ 37.399367] ? kasan_check_write+0x14/0x20 [ 37.403649] ? do_raw_write_lock+0xbd/0x1b0 [ 37.407966] integrity_inode_free+0x12f/0x320 [ 37.412448] security_inode_free+0x19/0x90 [ 37.416860] __destroy_inode+0x328/0x820 [ 37.421051] ? generic_update_time+0x450/0x450 [ 37.425705] ? evict+0x5d8/0x980 [ 37.429059] ? lock_downgrade+0x900/0x900 [ 37.433208] ? __inode_wait_for_writeback+0x2cf/0x380 [ 37.438484] destroy_inode+0xda/0x200 [ 37.442267] ? __destroy_inode+0x820/0x820 [ 37.446483] ? kasan_check_write+0x14/0x20 [ 37.450698] ? do_raw_spin_lock+0xc1/0x200 [ 37.455143] evict+0x5e0/0x980 [ 37.458323] ? destroy_inode+0x200/0x200 [ 37.462368] ? iput+0x671/0xa90 [ 37.465627] ? lock_downgrade+0x900/0x900 [ 37.469756] ? kasan_check_read+0x11/0x20 [ 37.473885] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 37.478448] ? lock_downgrade+0x900/0x900 [ 37.482576] iput+0x679/0xa90 [ 37.485661] ? inode_add_lru+0x2a0/0x2a0 [ 37.489701] ? up_write+0x7b/0x220 [ 37.493217] ? up_read+0x110/0x110 [ 37.496732] ? up_read+0x110/0x110 [ 37.500254] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.505773] ? check_preemption_disabled+0x48/0x200 [ 37.510769] ext4_ioctl+0x236f/0x4210 [ 37.514550] ? is_bpf_text_address+0xac/0x170 [ 37.519025] ? ext4_ioctl_group_add+0x560/0x560 [ 37.523684] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 37.529462] ? kasan_check_read+0x11/0x20 [ 37.533588] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 37.538847] ? rcu_bh_qs+0xc0/0xc0 [ 37.542364] ? rcu_bh_qs+0xc0/0xc0 [ 37.545885] ? unwind_dump+0x190/0x190 [ 37.549757] ? is_bpf_text_address+0xd3/0x170 [ 37.554230] ? kernel_text_address+0x79/0xf0 [ 37.558618] ? __kernel_text_address+0xd/0x40 [ 37.563093] ? unwind_get_return_address+0x61/0xa0 [ 37.568008] ? __save_stack_trace+0x8d/0xf0 [ 37.572311] ? save_stack+0xa9/0xd0 [ 37.575931] ? save_stack+0x43/0xd0 [ 37.579538] ? __kasan_slab_free+0x102/0x150 [ 37.583925] ? kasan_slab_free+0xe/0x10 [ 37.587877] ? kmem_cache_free+0x83/0x290 [ 37.592004] ? putname+0xf2/0x130 [ 37.595437] ? do_sys_open+0x54d/0x700 [ 37.599307] ? __x64_sys_openat+0x9d/0x100 [ 37.603530] ? do_syscall_64+0x1b9/0x820 [ 37.607726] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.613083] ? trace_hardirqs_off+0xb8/0x310 [ 37.617475] ? kasan_check_read+0x11/0x20 [ 37.621609] ? do_raw_spin_unlock+0xa7/0x2f0 [ 37.626000] ? trace_hardirqs_on+0x310/0x310 [ 37.630397] ? kasan_check_write+0x14/0x20 [ 37.634620] ? trace_hardirqs_off+0xb8/0x310 [ 37.639138] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.644663] ? check_preemption_disabled+0x48/0x200 [ 37.649661] ? check_preemption_disabled+0x48/0x200 [ 37.654664] ? ext4_ioctl_group_add+0x560/0x560 [ 37.659314] do_vfs_ioctl+0x1de/0x1720 [ 37.663189] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 37.668463] ? ioctl_preallocate+0x300/0x300 [ 37.672853] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.678380] ? __fget_light+0x2e9/0x430 [ 37.682337] ? fget_raw+0x20/0x20 [ 37.685871] ? putname+0xf2/0x130 [ 37.689310] ? rcu_read_lock_sched_held+0x108/0x120 [ 37.694310] ? kmem_cache_free+0x24f/0x290 [ 37.698530] ? putname+0xf7/0x130 [ 37.701974] ? do_syscall_64+0x9a/0x820 [ 37.705934] ? do_syscall_64+0x9a/0x820 [ 37.709957] ? lockdep_hardirqs_on+0x421/0x5c0 [ 37.714539] ? security_file_ioctl+0x94/0xc0 [ 37.718928] ksys_ioctl+0xa9/0xd0 [ 37.722361] __x64_sys_ioctl+0x73/0xb0 [ 37.726232] do_syscall_64+0x1b9/0x820 [ 37.730103] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 37.735450] ? syscall_return_slowpath+0x5e0/0x5e0 [ 37.740365] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.745195] ? trace_hardirqs_on_caller+0x310/0x310 [ 37.750195] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 37.755277] ? prepare_exit_to_usermode+0x291/0x3b0 [ 37.760347] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.765182] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.770359] RIP: 0033:0x440009 [ 37.773551] 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 [ 37.792558] RSP: 002b:00007ffecbab0f48 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 37.800466] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 37.807826] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 37.815082] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 37.822336] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 37.829597] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 37.836973] Modules linked in: [ 37.840284] ---[ end trace 37d05f5ac137d5d8 ]--- [ 37.845069] RIP: 0010:rb_erase+0x306/0x3710 [ 37.849375] 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 [ 37.868411] RSP: 0018:ffff8801be28e918 EFLAGS: 00010202 [ 37.873799] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 37.881059] RDX: 1ffff10037c51d2b RSI: ffffffff8afc08a0 RDI: 0000000000000008 [ 37.888454] RBP: ffff8801be28f320 R08: dffffc0000000000 R09: fffffbfff12d6a90 [ 37.895747] R10: fffffbfff12d6a90 R11: ffffffff896b5483 R12: ffff8801b72751f0 [ 37.903035] R13: dffffc0000000000 R14: ffff8801be28f2f8 R15: ffff8801be28f438 [ 37.910358] FS: 00000000008f9880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 37.918620] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.924542] CR2: 0000000020000080 CR3: 00000001bb9f1000 CR4: 00000000001406e0 [ 37.931967] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.939274] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.946564] Kernel panic - not syncing: Fatal exception [ 37.952953] Kernel Offset: disabled [ 37.956575] Rebooting in 86400 seconds..