[info] Using makefile-style concurrent boot in runlevel 2. [ 23.756093] audit: type=1800 audit(1537922460.307:21): pid=5182 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 23.791911] audit: type=1800 audit(1537922460.317:22): pid=5182 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 '10.128.0.88' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 38.795835] kasan: CONFIG_KASAN_INLINE enabled [ 38.800537] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 38.807900] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 38.814113] CPU: 0 PID: 5338 Comm: syz-executor239 Not tainted 4.19.0-rc5+ #254 [ 38.821545] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.830889] RIP: 0010:rb_erase+0x306/0x3710 [ 38.835807] 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 [ 38.858335] RSP: 0018:ffff8801c196e918 EFLAGS: 00010202 [ 38.864021] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 38.871886] RDX: 1ffff1003832dd2b RSI: ffffffff8b5a08a0 RDI: 0000000000000008 [ 38.879747] RBP: ffff8801c196f320 R08: dffffc0000000000 R09: fffffbfff135d5c8 [ 38.886995] R10: fffffbfff135d5c8 R11: ffffffff89aeae43 R12: ffff8801b72647b0 [ 38.894245] R13: dffffc0000000000 R14: ffff8801c196f2f8 R15: ffff8801c196f438 [ 38.901499] FS: 0000000000b9c880(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000 [ 38.909710] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.915568] CR2: 0000000020000700 CR3: 00000001bb43c000 CR4: 00000000001406f0 [ 38.922819] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.930330] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.937577] Call Trace: [ 38.940251] ? lockdep_on+0x50/0x50 [ 38.943863] ? rb_insert_color+0x1460/0x1460 [ 38.948257] ? noop_count+0x40/0x40 [ 38.951867] ? lock_pin_lock+0x350/0x350 [ 38.955907] ? noop_count+0x40/0x40 [ 38.959517] ? kasan_check_read+0x11/0x20 [ 38.963645] ? noop_count+0x40/0x40 [ 38.967253] ? noop_count+0x40/0x40 [ 38.970861] ? lock_pin_lock+0x350/0x350 [ 38.974904] ? mark_held_locks+0x130/0x130 [ 38.979129] ? check_usage_forwards+0x3e0/0x3e0 [ 38.983780] ? __bfs+0x385/0x7a0 [ 38.987129] ? noop_count+0x40/0x40 [ 38.990739] ? check_usage+0x1a9/0x790 [ 38.994614] ? lock_pin_lock+0x350/0x350 [ 38.998667] ? check_usage_forwards+0x3e0/0x3e0 [ 39.003323] ? __bfs+0x385/0x7a0 [ 39.006670] ? __lock_acquire+0x7ec/0x4ec0 [ 39.010893] ? lockdep_on+0x50/0x50 [ 39.014505] ? lock_pin_lock+0x350/0x350 [ 39.018566] ? mark_held_locks+0x130/0x130 [ 39.022879] ? kasan_check_read+0x11/0x20 [ 39.027013] ? __lock_acquire+0x2881/0x4ec0 [ 39.031328] ? mark_held_locks+0x130/0x130 [ 39.035542] ? print_usage_bug+0xc0/0xc0 [ 39.039589] ? _raw_spin_unlock+0x2c/0x50 [ 39.043721] ? graph_lock+0x170/0x170 [ 39.047507] ? ext4_exit_mballoc+0xc0/0xc0 [ 39.051724] ? __lock_acquire+0x7ec/0x4ec0 [ 39.055939] ? find_held_lock+0x36/0x1c0 [ 39.059991] ? mark_held_locks+0x130/0x130 [ 39.064207] ? lock_downgrade+0x900/0x900 [ 39.068347] ? ext4_es_scan+0x960/0x960 [ 39.072309] ? do_raw_write_trylock+0x1c0/0x1c0 [ 39.076961] ? kasan_check_write+0x14/0x20 [ 39.081179] ? lock_acquire+0x1ed/0x520 [ 39.085142] ? integrity_inode_free+0x77/0x320 [ 39.089707] ? ext4_es_remove_extent+0x151/0x500 [ 39.094448] ? lock_release+0x970/0x970 [ 39.098411] ? kasan_check_write+0x14/0x20 [ 39.102632] ? do_raw_write_lock+0xbd/0x1b0 [ 39.106939] integrity_inode_free+0x12f/0x320 [ 39.111421] security_inode_free+0x19/0x90 [ 39.115639] __destroy_inode+0x328/0x820 [ 39.119685] ? generic_update_time+0x450/0x450 [ 39.124249] ? evict+0x5d8/0x980 [ 39.127595] ? lock_downgrade+0x900/0x900 [ 39.131776] ? __inode_wait_for_writeback+0x2cf/0x380 [ 39.136956] destroy_inode+0xda/0x200 [ 39.140740] ? __destroy_inode+0x820/0x820 [ 39.144957] ? kasan_check_write+0x14/0x20 [ 39.149196] ? do_raw_spin_lock+0xc1/0x200 [ 39.153764] evict+0x5e0/0x980 [ 39.156943] ? destroy_inode+0x200/0x200 [ 39.160987] ? iput+0x671/0xa90 [ 39.164258] ? lock_downgrade+0x900/0x900 [ 39.168389] ? kasan_check_read+0x11/0x20 [ 39.172522] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 39.177085] ? lock_downgrade+0x900/0x900 [ 39.181219] iput+0x679/0xa90 [ 39.184320] ? inode_add_lru+0x2a0/0x2a0 [ 39.188361] ? up_write+0x7b/0x220 [ 39.191885] ? up_read+0x110/0x110 [ 39.195403] ? up_read+0x110/0x110 [ 39.198927] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.204570] ? check_preemption_disabled+0x48/0x200 [ 39.210355] ext4_ioctl+0x236f/0x4210 [ 39.215103] ? ext4_ioctl_group_add+0x560/0x560 [ 39.220467] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 39.227796] ? kasan_check_read+0x11/0x20 [ 39.232530] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 39.238384] ? rcu_bh_qs+0xc0/0xc0 [ 39.241908] ? rcu_bh_qs+0xc0/0xc0 [ 39.247196] ? unwind_dump+0x190/0x190 [ 39.252554] ? is_bpf_text_address+0xd3/0x170 [ 39.257486] ? kernel_text_address+0x79/0xf0 [ 39.262401] ? __kernel_text_address+0xd/0x40 [ 39.268302] ? unwind_get_return_address+0x61/0xa0 [ 39.273637] ? __save_stack_trace+0x8d/0xf0 [ 39.279382] ? save_stack+0xa9/0xd0 [ 39.283757] ? save_stack+0x43/0xd0 [ 39.288552] ? __kasan_slab_free+0x102/0x150 [ 39.293783] ? kasan_slab_free+0xe/0x10 [ 39.298359] ? kmem_cache_free+0x83/0x290 [ 39.303063] ? putname+0xf2/0x130 [ 39.306504] ? do_sys_open+0x54d/0x700 [ 39.312814] ? __x64_sys_open+0x7e/0xc0 [ 39.317183] ? do_syscall_64+0x1b9/0x820 [ 39.321243] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.326591] ? trace_hardirqs_off+0xb8/0x310 [ 39.330979] ? kasan_check_read+0x11/0x20 [ 39.335114] ? do_raw_spin_unlock+0xa7/0x2f0 [ 39.339504] ? trace_hardirqs_on+0x310/0x310 [ 39.343890] ? kasan_check_write+0x14/0x20 [ 39.348110] ? trace_hardirqs_off+0xb8/0x310 [ 39.352499] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.358015] ? check_preemption_disabled+0x48/0x200 [ 39.363021] ? ext4_ioctl_group_add+0x560/0x560 [ 39.367680] do_vfs_ioctl+0x1de/0x1720 [ 39.371557] ? rcu_lockdep_current_cpu_online+0x1f0/0x2d0 [ 39.377075] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 39.382337] ? ioctl_preallocate+0x300/0x300 [ 39.386818] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.392347] ? __fget_light+0x2e9/0x430 [ 39.396299] ? fget_raw+0x20/0x20 [ 39.399738] ? rcu_read_lock_sched_held+0x108/0x120 [ 39.404736] ? kmem_cache_free+0x24f/0x290 [ 39.408952] ? putname+0xf7/0x130 [ 39.412389] ? do_syscall_64+0x9a/0x820 [ 39.416346] ? do_syscall_64+0x9a/0x820 [ 39.420304] ? lockdep_hardirqs_on+0x421/0x5c0 [ 39.424871] ? security_file_ioctl+0x94/0xc0 [ 39.429266] ksys_ioctl+0xa9/0xd0 [ 39.432703] __x64_sys_ioctl+0x73/0xb0 [ 39.436571] do_syscall_64+0x1b9/0x820 [ 39.440444] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 39.445788] ? syscall_return_slowpath+0x5e0/0x5e0 [ 39.450700] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.455631] ? trace_hardirqs_on_caller+0x310/0x310 [ 39.460632] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 39.465634] ? prepare_exit_to_usermode+0x291/0x3b0 [ 39.470639] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.475590] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.480764] RIP: 0033:0x440029 [ 39.483943] 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 [ 39.502830] RSP: 002b:00007ffc1136e108 EFLAGS: 00000207 ORIG_RAX: 0000000000000010 [ 39.510523] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440029 [ 39.517774] RDX: 0000000000440029 RSI: 0000000000006611 RDI: 0000000000000003 [ 39.525023] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 39.532281] R10: 0000000000000000 R11: 0000000000000207 R12: 00000000004018b0 [ 39.539530] R13: 0000000000401940 R14: 0000000000000000 R15: 0000000000000000 [ 39.546783] Modules linked in: [ 39.550195] ---[ end trace 331a86f3cd82db5d ]--- [ 39.554976] RIP: 0010:rb_erase+0x306/0x3710 [ 39.559332] 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 [ 39.578256] RSP: 0018:ffff8801c196e918 EFLAGS: 00010202 [ 39.583632] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 39.590911] RDX: 1ffff1003832dd2b RSI: ffffffff8b5a08a0 RDI: 0000000000000008 [ 39.598162] RBP: ffff8801c196f320 R08: dffffc0000000000 R09: fffffbfff135d5c8 [ 39.605452] R10: fffffbfff135d5c8 R11: ffffffff89aeae43 R12: ffff8801b72647b0 [ 39.612731] R13: dffffc0000000000 R14: ffff8801c196f2f8 R15: ffff8801c196f438 [ 39.620016] FS: 0000000000b9c880(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000 [ 39.628315] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.634228] CR2: 0000000020000700 CR3: 00000001bb43c000 CR4: 00000000001406f0 [ 39.641515] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.648802] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.656069] Kernel panic - not syncing: Fatal exception [ 39.662323] Kernel Offset: disabled [ 39.665943] Rebooting in 86400 seconds..