[info] Using makefile-style concurrent boot in runlevel 2. [ 24.967203] audit: type=1800 audit(1540177833.501:21): pid=5184 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.997713] audit: type=1800 audit(1540177833.511:22): pid=5184 uid=0 auid=4294967295 ses=4294967295 subj=_ 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 '10.128.0.63' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 39.377757] kasan: CONFIG_KASAN_INLINE enabled [ 39.382467] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 39.390008] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 39.396249] CPU: 1 PID: 5340 Comm: syz-executor272 Not tainted 4.19.0-rc8+ #73 [ 39.403587] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.412933] RIP: 0010:rb_erase+0x306/0x3710 [ 39.417237] 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 [ 39.436125] RSP: 0018:ffff8801ba8d6918 EFLAGS: 00010202 [ 39.441473] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 39.448729] RDX: 1ffff1003751ad2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 39.455980] RBP: ffff8801ba8d7320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 39.463231] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801b66c8970 [ 39.470484] R13: dffffc0000000000 R14: ffff8801ba8d72f8 R15: ffff8801ba8d7438 [ 39.477740] FS: 0000000001fa3880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 39.485947] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.491806] CR2: 0000000020000080 CR3: 00000001d8fe8000 CR4: 00000000001406e0 [ 39.499059] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.506310] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.513562] Call Trace: [ 39.516138] ? lockdep_on+0x50/0x50 [ 39.519750] ? rb_insert_color+0x1460/0x1460 [ 39.524140] ? lock_downgrade+0x900/0x900 [ 39.528267] ? noop_count+0x40/0x40 [ 39.531927] ? lock_pin_lock+0x350/0x350 [ 39.535982] ? rcu_bh_qs+0xc0/0xc0 [ 39.539512] ? unwind_dump+0x190/0x190 [ 39.543400] ? kasan_check_read+0x11/0x20 [ 39.547538] ? noop_count+0x40/0x40 [ 39.551152] ? lock_pin_lock+0x350/0x350 [ 39.555197] ? mark_held_locks+0x130/0x130 [ 39.559457] ? check_usage_forwards+0x3e0/0x3e0 [ 39.564225] ? __bfs+0x385/0x7a0 [ 39.567590] ? check_usage+0x1a9/0x790 [ 39.571473] ? lock_pin_lock+0x350/0x350 [ 39.575516] ? check_usage_forwards+0x3e0/0x3e0 [ 39.580170] ? __bfs+0x385/0x7a0 [ 39.583521] ? modules_open+0xa0/0xa0 [ 39.587303] ? lockdep_on+0x50/0x50 [ 39.590913] ? lock_pin_lock+0x350/0x350 [ 39.594962] ? mark_held_locks+0x130/0x130 [ 39.599187] ? kasan_check_read+0x11/0x20 [ 39.603317] ? __lock_acquire+0x2881/0x4ec0 [ 39.607638] ? mark_held_locks+0x130/0x130 [ 39.611869] ? print_usage_bug+0xc0/0xc0 [ 39.615910] ? _raw_spin_unlock+0x2c/0x50 [ 39.620046] ? graph_lock+0x170/0x170 [ 39.623829] ? ext4_exit_mballoc+0xc0/0xc0 [ 39.628059] ? __lock_acquire+0x7ec/0x4ec0 [ 39.632281] ? find_held_lock+0x36/0x1c0 [ 39.636396] ? mark_held_locks+0x130/0x130 [ 39.640620] ? lock_downgrade+0x900/0x900 [ 39.644749] ? ext4_es_scan+0x960/0x960 [ 39.648716] ? do_raw_write_trylock+0x1c0/0x1c0 [ 39.653379] ? kasan_check_write+0x14/0x20 [ 39.657604] ? lock_acquire+0x1ed/0x520 [ 39.661660] ? integrity_inode_free+0x77/0x320 [ 39.666225] ? ext4_es_remove_extent+0x151/0x500 [ 39.670968] ? lock_release+0x970/0x970 [ 39.674929] ? kasan_check_write+0x14/0x20 [ 39.679145] ? do_raw_write_lock+0xbd/0x1e0 [ 39.683450] integrity_inode_free+0x12f/0x320 [ 39.687929] security_inode_free+0x19/0x90 [ 39.692147] __destroy_inode+0x328/0x820 [ 39.696188] ? generic_update_time+0x450/0x450 [ 39.700751] ? evict+0x5d8/0x980 [ 39.704098] ? lock_downgrade+0x900/0x900 [ 39.708236] ? __inode_wait_for_writeback+0x2cf/0x380 [ 39.713409] destroy_inode+0xda/0x200 [ 39.717193] ? __destroy_inode+0x820/0x820 [ 39.721408] ? kasan_check_write+0x14/0x20 [ 39.725624] ? do_raw_spin_lock+0xc1/0x230 [ 39.729848] evict+0x5e0/0x980 [ 39.733026] ? destroy_inode+0x200/0x200 [ 39.737067] ? iput+0x671/0xa90 [ 39.740328] ? lock_downgrade+0x900/0x900 [ 39.744511] ? kasan_check_read+0x11/0x20 [ 39.748653] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 39.753221] ? lock_downgrade+0x900/0x900 [ 39.757351] iput+0x679/0xa90 [ 39.760448] ? inode_add_lru+0x2a0/0x2a0 [ 39.764500] ? up_write+0x7b/0x220 [ 39.768021] ? up_read+0x110/0x110 [ 39.771550] ? up_read+0x110/0x110 [ 39.775074] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.780593] ? check_preemption_disabled+0x48/0x280 [ 39.785594] ext4_ioctl+0x236f/0x4210 [ 39.789389] ? is_bpf_text_address+0xac/0x170 [ 39.793872] ? ext4_ioctl_group_add+0x560/0x560 [ 39.798529] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 39.804317] ? kasan_check_read+0x11/0x20 [ 39.808462] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 39.813728] ? rcu_bh_qs+0xc0/0xc0 [ 39.817249] ? rcu_bh_qs+0xc0/0xc0 [ 39.820773] ? unwind_dump+0x190/0x190 [ 39.824649] ? is_bpf_text_address+0xd3/0x170 [ 39.829129] ? kernel_text_address+0x79/0xf0 [ 39.833517] ? __kernel_text_address+0xd/0x40 [ 39.837994] ? unwind_get_return_address+0x61/0xa0 [ 39.842905] ? __save_stack_trace+0x8d/0xf0 [ 39.847214] ? save_stack+0xa9/0xd0 [ 39.850824] ? save_stack+0x43/0xd0 [ 39.854430] ? __kasan_slab_free+0x102/0x150 [ 39.858815] ? kasan_slab_free+0xe/0x10 [ 39.862770] ? kmem_cache_free+0x83/0x290 [ 39.866899] ? putname+0xf2/0x130 [ 39.870333] ? do_sys_open+0x54d/0x700 [ 39.874205] ? __x64_sys_openat+0x9d/0x100 [ 39.878424] ? do_syscall_64+0x1b9/0x820 [ 39.882465] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.887811] ? trace_hardirqs_off+0xb8/0x310 [ 39.892202] ? kasan_check_read+0x11/0x20 [ 39.896329] ? do_raw_spin_unlock+0xa7/0x330 [ 39.900721] ? trace_hardirqs_on+0x310/0x310 [ 39.905113] ? kasan_check_write+0x14/0x20 [ 39.909332] ? trace_hardirqs_off+0xb8/0x310 [ 39.913724] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.919246] ? check_preemption_disabled+0x48/0x280 [ 39.924251] ? check_preemption_disabled+0x48/0x280 [ 39.929249] ? ext4_ioctl_group_add+0x560/0x560 [ 39.933903] do_vfs_ioctl+0x1de/0x1720 [ 39.937777] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 39.943036] ? ioctl_preallocate+0x300/0x300 [ 39.947420] ? memset+0x31/0x40 [ 39.950687] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.956207] ? smack_file_ioctl+0x210/0x3c0 [ 39.960511] ? fget_raw+0x20/0x20 [ 39.963953] ? smack_file_lock+0x2e0/0x2e0 [ 39.968175] ? do_syscall_64+0x9a/0x820 [ 39.972130] ? do_syscall_64+0x9a/0x820 [ 39.976085] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.981601] ? security_file_ioctl+0x94/0xc0 [ 39.985993] ksys_ioctl+0xa9/0xd0 [ 39.989425] __x64_sys_ioctl+0x73/0xb0 [ 39.993444] do_syscall_64+0x1b9/0x820 [ 39.997323] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 40.002672] ? syscall_return_slowpath+0x5e0/0x5e0 [ 40.007599] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.012440] ? trace_hardirqs_on_caller+0x310/0x310 [ 40.017441] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 40.022538] ? prepare_exit_to_usermode+0x291/0x3b0 [ 40.027547] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.032384] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.037563] RIP: 0033:0x440009 [ 40.040750] 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 [ 40.059833] RSP: 002b:00007ffe7bb6e168 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 40.067519] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 40.074775] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 40.082026] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 40.089280] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 40.096532] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 40.103891] Modules linked in: [ 40.107168] ---[ end trace 0dbc75a904b817fc ]--- [ 40.111969] RIP: 0010:rb_erase+0x306/0x3710 [ 40.116280] 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 [ 40.135206] RSP: 0018:ffff8801ba8d6918 EFLAGS: 00010202 [ 40.140661] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 40.147951] RDX: 1ffff1003751ad2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 40.155221] RBP: ffff8801ba8d7320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 40.162506] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801b66c8970 [ 40.169798] R13: dffffc0000000000 R14: ffff8801ba8d72f8 R15: ffff8801ba8d7438 [ 40.177058] FS: 0000000001fa3880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 40.185300] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.191195] CR2: 0000000020000080 CR3: 00000001d8fe8000 CR4: 00000000001406e0 [ 40.198482] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.205764] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.213060] Kernel panic - not syncing: Fatal exception [ 40.219227] Kernel Offset: disabled [ 40.222848] Rebooting in 86400 seconds..