[info] Using makefile-style concurrent boot in runlevel 2. [ 24.048174] audit: type=1800 audit(1540119035.185:21): pid=5181 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.075242] audit: type=1800 audit(1540119035.185:22): pid=5181 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 '10.128.0.107' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 49.794599] kasan: CONFIG_KASAN_INLINE enabled [ 49.799315] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 49.806665] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 49.812992] CPU: 1 PID: 5336 Comm: syz-executor760 Not tainted 4.19.0-rc8+ #270 [ 49.820420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.829872] RIP: 0010:rb_erase+0x306/0x3710 [ 49.834177] 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 [ 49.853064] RSP: 0018:ffff8801b71ee918 EFLAGS: 00010202 [ 49.858411] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 49.865664] RDX: 1ffff10036e3dd2b RSI: ffffffff8afc5020 RDI: 0000000000000008 [ 49.872916] RBP: ffff8801b71ef320 R08: dffffc0000000000 R09: fffffbfff12d68e0 [ 49.880165] R10: fffffbfff12d68e0 R11: ffffffff896b4703 R12: ffff8801b6ef5970 [ 49.887415] R13: dffffc0000000000 R14: ffff8801b71ef2f8 R15: ffff8801b71ef438 [ 49.894670] FS: 0000000002269880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 49.902879] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.908742] CR2: 0000000020000080 CR3: 00000001d86a7000 CR4: 00000000001406e0 [ 49.915994] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.923249] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.930501] Call Trace: [ 49.933079] ? lockdep_on+0x50/0x50 [ 49.936690] ? rb_insert_color+0x1460/0x1460 [ 49.941088] ? lock_downgrade+0x900/0x900 [ 49.945219] ? noop_count+0x40/0x40 [ 49.948830] ? lock_pin_lock+0x350/0x350 [ 49.952881] ? rcu_bh_qs+0xc0/0xc0 [ 49.956412] ? unwind_dump+0x190/0x190 [ 49.960289] ? kasan_check_read+0x11/0x20 [ 49.964421] ? noop_count+0x40/0x40 [ 49.968038] ? lock_pin_lock+0x350/0x350 [ 49.972084] ? mark_held_locks+0x130/0x130 [ 49.976304] ? check_usage_forwards+0x3e0/0x3e0 [ 49.980959] ? __bfs+0x385/0x7a0 [ 49.984309] ? check_usage+0x1a9/0x790 [ 49.988176] ? lock_pin_lock+0x350/0x350 [ 49.992221] ? check_usage_forwards+0x3e0/0x3e0 [ 49.996873] ? __bfs+0x385/0x7a0 [ 50.000222] ? modules_open+0xa0/0xa0 [ 50.004008] ? lockdep_on+0x50/0x50 [ 50.007614] ? lock_pin_lock+0x350/0x350 [ 50.011663] ? mark_held_locks+0x130/0x130 [ 50.015886] ? kasan_check_read+0x11/0x20 [ 50.020014] ? __lock_acquire+0x2881/0x4ec0 [ 50.024322] ? mark_held_locks+0x130/0x130 [ 50.028556] ? print_usage_bug+0xc0/0xc0 [ 50.032616] ? _raw_spin_unlock+0x2c/0x50 [ 50.036747] ? graph_lock+0x170/0x170 [ 50.040532] ? ext4_exit_mballoc+0xc0/0xc0 [ 50.044754] ? __lock_acquire+0x7ec/0x4ec0 [ 50.048999] ? find_held_lock+0x36/0x1c0 [ 50.053060] ? mark_held_locks+0x130/0x130 [ 50.057278] ? lock_downgrade+0x900/0x900 [ 50.061410] ? ext4_es_scan+0x960/0x960 [ 50.065370] ? do_raw_write_trylock+0x1c0/0x1c0 [ 50.070030] ? kasan_check_write+0x14/0x20 [ 50.074296] ? lock_acquire+0x1ed/0x520 [ 50.078265] ? integrity_inode_free+0x77/0x320 [ 50.082874] ? ext4_es_remove_extent+0x151/0x500 [ 50.087621] ? lock_release+0x970/0x970 [ 50.091585] ? kasan_check_write+0x14/0x20 [ 50.095802] ? do_raw_write_lock+0xbd/0x1b0 [ 50.100106] integrity_inode_free+0x12f/0x320 [ 50.104587] security_inode_free+0x19/0x90 [ 50.108812] __destroy_inode+0x328/0x820 [ 50.112858] ? generic_update_time+0x450/0x450 [ 50.117487] ? evict+0x5d8/0x980 [ 50.120847] ? lock_downgrade+0x900/0x900 [ 50.124981] ? __inode_wait_for_writeback+0x2cf/0x380 [ 50.130155] destroy_inode+0xda/0x200 [ 50.133937] ? __destroy_inode+0x820/0x820 [ 50.138171] ? kasan_check_write+0x14/0x20 [ 50.142395] ? do_raw_spin_lock+0xc1/0x200 [ 50.146617] evict+0x5e0/0x980 [ 50.149794] ? destroy_inode+0x200/0x200 [ 50.153836] ? iput+0x671/0xa90 [ 50.157099] ? lock_downgrade+0x900/0x900 [ 50.161237] ? kasan_check_read+0x11/0x20 [ 50.165366] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 50.169936] ? lock_downgrade+0x900/0x900 [ 50.174156] iput+0x679/0xa90 [ 50.177255] ? inode_add_lru+0x2a0/0x2a0 [ 50.181303] ? up_write+0x7b/0x220 [ 50.184824] ? up_read+0x110/0x110 [ 50.188345] ? up_read+0x110/0x110 [ 50.191868] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.197394] ? check_preemption_disabled+0x48/0x200 [ 50.202399] ext4_ioctl+0x236f/0x4210 [ 50.206186] ? is_bpf_text_address+0xac/0x170 [ 50.210666] ? ext4_ioctl_group_add+0x560/0x560 [ 50.215379] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 50.221171] ? kasan_check_read+0x11/0x20 [ 50.225303] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 50.230565] ? rcu_bh_qs+0xc0/0xc0 [ 50.234087] ? rcu_bh_qs+0xc0/0xc0 [ 50.237614] ? unwind_dump+0x190/0x190 [ 50.241493] ? is_bpf_text_address+0xd3/0x170 [ 50.245970] ? kernel_text_address+0x79/0xf0 [ 50.250360] ? __kernel_text_address+0xd/0x40 [ 50.254839] ? unwind_get_return_address+0x61/0xa0 [ 50.259753] ? __save_stack_trace+0x8d/0xf0 [ 50.264183] ? save_stack+0xa9/0xd0 [ 50.267794] ? save_stack+0x43/0xd0 [ 50.271405] ? __kasan_slab_free+0x102/0x150 [ 50.275793] ? kasan_slab_free+0xe/0x10 [ 50.279751] ? kmem_cache_free+0x83/0x290 [ 50.283897] ? putname+0xf2/0x130 [ 50.287335] ? do_sys_open+0x54d/0x700 [ 50.291209] ? __x64_sys_openat+0x9d/0x100 [ 50.295425] ? do_syscall_64+0x1b9/0x820 [ 50.299472] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.304823] ? trace_hardirqs_off+0xb8/0x310 [ 50.309213] ? kasan_check_read+0x11/0x20 [ 50.313346] ? do_raw_spin_unlock+0xa7/0x2f0 [ 50.317734] ? trace_hardirqs_on+0x310/0x310 [ 50.322128] ? kasan_check_write+0x14/0x20 [ 50.326347] ? trace_hardirqs_off+0xb8/0x310 [ 50.330737] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.336264] ? check_preemption_disabled+0x48/0x200 [ 50.341272] ? check_preemption_disabled+0x48/0x200 [ 50.346280] ? ext4_ioctl_group_add+0x560/0x560 [ 50.350938] do_vfs_ioctl+0x1de/0x1720 [ 50.354819] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 50.360078] ? ioctl_preallocate+0x300/0x300 [ 50.364468] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.369987] ? __fget_light+0x2e9/0x430 [ 50.373955] ? fget_raw+0x20/0x20 [ 50.377393] ? putname+0xf2/0x130 [ 50.380830] ? rcu_read_lock_sched_held+0x108/0x120 [ 50.385828] ? kmem_cache_free+0x24f/0x290 [ 50.390043] ? putname+0xf7/0x130 [ 50.393480] ? do_syscall_64+0x9a/0x820 [ 50.397525] ? do_syscall_64+0x9a/0x820 [ 50.401490] ? lockdep_hardirqs_on+0x421/0x5c0 [ 50.406060] ? security_file_ioctl+0x94/0xc0 [ 50.410456] ksys_ioctl+0xa9/0xd0 [ 50.413894] __x64_sys_ioctl+0x73/0xb0 [ 50.417769] do_syscall_64+0x1b9/0x820 [ 50.421640] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 50.426987] ? syscall_return_slowpath+0x5e0/0x5e0 [ 50.431899] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.436726] ? trace_hardirqs_on_caller+0x310/0x310 [ 50.441724] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 50.446722] ? prepare_exit_to_usermode+0x291/0x3b0 [ 50.451726] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.456559] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.461736] RIP: 0033:0x440009 [ 50.464914] 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 [ 50.483797] RSP: 002b:00007ffe2d714cf8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 50.491488] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 50.498739] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 50.505989] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 50.513238] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 50.520489] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 50.527742] Modules linked in: [ 50.531063] ---[ end trace 6a551ab155e77bab ]--- [ 50.535844] RIP: 0010:rb_erase+0x306/0x3710 [ 50.540204] 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 [ 50.559220] RSP: 0018:ffff8801b71ee918 EFLAGS: 00010202 [ 50.564572] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 50.571906] RDX: 1ffff10036e3dd2b RSI: ffffffff8afc5020 RDI: 0000000000000008 [ 50.579207] RBP: ffff8801b71ef320 R08: dffffc0000000000 R09: fffffbfff12d68e0 [ 50.586562] R10: fffffbfff12d68e0 R11: ffffffff896b4703 R12: ffff8801b6ef5970 [ 50.593851] R13: dffffc0000000000 R14: ffff8801b71ef2f8 R15: ffff8801b71ef438 [ 50.601262] FS: 0000000002269880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 50.609521] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.615398] CR2: 0000000020000080 CR3: 00000001d86a7000 CR4: 00000000001406e0 [ 50.622731] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.630059] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.637319] Kernel panic - not syncing: Fatal exception [ 50.643480] Kernel Offset: disabled [ 50.647099] Rebooting in 86400 seconds..