[info] Using makefile-style concurrent boot in runlevel 2. [ 21.413963] audit: type=1800 audit(1539772579.522:21): pid=5104 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 21.440888] audit: type=1800 audit(1539772579.532:22): pid=5104 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 '10.128.0.49' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 41.560481] kasan: CONFIG_KASAN_INLINE enabled [ 41.565333] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 41.572772] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 41.579121] CPU: 0 PID: 5261 Comm: syz-executor933 Not tainted 4.19.0-rc7+ #144 [ 41.586690] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.596321] RIP: 0010:rb_erase+0x306/0x3710 [ 41.600627] 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 [ 41.620075] RSP: 0018:ffff8801cc4c6918 EFLAGS: 00010202 [ 41.625569] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 41.633081] RDX: 1ffff10039898d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 41.640594] RBP: ffff8801cc4c7320 R08: dffffc0000000000 R09: fffffbfff12d69a0 [ 41.647979] R10: fffffbfff12d69a0 R11: ffffffff896b4d03 R12: ffff8801b72fa970 [ 41.655504] R13: dffffc0000000000 R14: ffff8801cc4c72f8 R15: ffff8801cc4c7438 [ 41.662753] FS: 0000000001210880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 41.670955] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.677029] CR2: 00000000200002c0 CR3: 00000001c5603000 CR4: 00000000001406f0 [ 41.684653] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.691903] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.699147] Call Trace: [ 41.701725] ? lockdep_on+0x50/0x50 [ 41.705335] ? rb_insert_color+0x1460/0x1460 [ 41.709743] ? noop_count+0x40/0x40 [ 41.713360] ? lock_pin_lock+0x350/0x350 [ 41.717408] ? rcu_bh_qs+0xc0/0xc0 [ 41.720929] ? unwind_dump+0x190/0x190 [ 41.724800] ? kasan_check_read+0x11/0x20 [ 41.729083] ? __lock_acquire+0x2881/0x4ec0 [ 41.733521] ? noop_count+0x40/0x40 [ 41.737144] ? lock_pin_lock+0x350/0x350 [ 41.741477] ? mark_held_locks+0x130/0x130 [ 41.745697] ? check_usage_forwards+0x3e0/0x3e0 [ 41.750493] ? __bfs+0x385/0x7a0 [ 41.753852] ? check_usage+0x1a9/0x790 [ 41.757797] ? lock_pin_lock+0x350/0x350 [ 41.762093] ? check_usage_forwards+0x3e0/0x3e0 [ 41.766750] ? __bfs+0x385/0x7a0 [ 41.770177] ? modules_open+0xa0/0xa0 [ 41.773963] ? lockdep_on+0x50/0x50 [ 41.777569] ? lock_pin_lock+0x350/0x350 [ 41.781687] ? mark_held_locks+0x130/0x130 [ 41.785981] ? kasan_check_read+0x11/0x20 [ 41.790135] ? __lock_acquire+0x2881/0x4ec0 [ 41.794447] ? mark_held_locks+0x130/0x130 [ 41.798665] ? print_usage_bug+0xc0/0xc0 [ 41.802766] ? _raw_spin_unlock+0x2c/0x50 [ 41.806909] ? graph_lock+0x170/0x170 [ 41.810809] ? ext4_exit_mballoc+0xc0/0xc0 [ 41.815039] ? __lock_acquire+0x7ec/0x4ec0 [ 41.819385] ? find_held_lock+0x36/0x1c0 [ 41.823602] ? mark_held_locks+0x130/0x130 [ 41.827968] ? lock_downgrade+0x900/0x900 [ 41.832250] ? ext4_es_scan+0x960/0x960 [ 41.836209] ? do_raw_write_trylock+0x1c0/0x1c0 [ 41.841063] ? kasan_check_write+0x14/0x20 [ 41.845339] ? lock_acquire+0x1ed/0x520 [ 41.849296] ? integrity_inode_free+0x77/0x320 [ 41.853855] ? ext4_es_remove_extent+0x151/0x500 [ 41.858734] ? lock_release+0x970/0x970 [ 41.862696] ? kasan_check_write+0x14/0x20 [ 41.866916] ? do_raw_write_lock+0xbd/0x1b0 [ 41.871217] integrity_inode_free+0x12f/0x320 [ 41.875720] security_inode_free+0x19/0x90 [ 41.879937] __destroy_inode+0x328/0x820 [ 41.883986] ? generic_update_time+0x450/0x450 [ 41.888682] ? evict+0x5d8/0x980 [ 41.892028] ? lock_downgrade+0x900/0x900 [ 41.896345] ? __inode_wait_for_writeback+0x2cf/0x380 [ 41.901813] destroy_inode+0xda/0x200 [ 41.905763] ? __destroy_inode+0x820/0x820 [ 41.909994] ? kasan_check_write+0x14/0x20 [ 41.914412] ? do_raw_spin_lock+0xc1/0x200 [ 41.918633] evict+0x5e0/0x980 [ 41.921979] ? destroy_inode+0x200/0x200 [ 41.926023] ? iput+0x671/0xa90 [ 41.929281] ? lock_downgrade+0x900/0x900 [ 41.933414] ? kasan_check_read+0x11/0x20 [ 41.937544] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 41.942361] ? lock_downgrade+0x900/0x900 [ 41.946678] iput+0x679/0xa90 [ 41.949767] ? inode_add_lru+0x2a0/0x2a0 [ 41.953940] ? up_write+0x7b/0x220 [ 41.957636] ? up_read+0x110/0x110 [ 41.961160] ? up_read+0x110/0x110 [ 41.964962] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.970482] ? check_preemption_disabled+0x48/0x200 [ 41.975478] ext4_ioctl+0x236f/0x4210 [ 41.979493] ? is_bpf_text_address+0xac/0x170 [ 41.983979] ? ext4_ioctl_group_add+0x560/0x560 [ 41.988640] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 41.994702] ? kasan_check_read+0x11/0x20 [ 41.998894] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 42.004159] ? rcu_bh_qs+0xc0/0xc0 [ 42.007682] ? rcu_bh_qs+0xc0/0xc0 [ 42.011214] ? unwind_dump+0x190/0x190 [ 42.015083] ? is_bpf_text_address+0xd3/0x170 [ 42.019702] ? kernel_text_address+0x79/0xf0 [ 42.024097] ? __kernel_text_address+0xd/0x40 [ 42.028577] ? unwind_get_return_address+0x61/0xa0 [ 42.033627] ? __save_stack_trace+0x8d/0xf0 [ 42.037937] ? save_stack+0xa9/0xd0 [ 42.041552] ? save_stack+0x43/0xd0 [ 42.045162] ? __kasan_slab_free+0x102/0x150 [ 42.049689] ? kasan_slab_free+0xe/0x10 [ 42.054058] ? kmem_cache_free+0x83/0x290 [ 42.058338] ? putname+0xf2/0x130 [ 42.061881] ? do_sys_open+0x54d/0x700 [ 42.065900] ? __x64_sys_openat+0x9d/0x100 [ 42.070116] ? do_syscall_64+0x1b9/0x820 [ 42.074456] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.079937] ? trace_hardirqs_off+0xb8/0x310 [ 42.084324] ? kasan_check_read+0x11/0x20 [ 42.088562] ? do_raw_spin_unlock+0xa7/0x2f0 [ 42.092977] ? trace_hardirqs_on+0x310/0x310 [ 42.097371] ? kasan_check_write+0x14/0x20 [ 42.101589] ? trace_hardirqs_off+0xb8/0x310 [ 42.105990] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 42.111633] ? check_preemption_disabled+0x48/0x200 [ 42.116632] ? check_preemption_disabled+0x48/0x200 [ 42.121637] ? ext4_ioctl_group_add+0x560/0x560 [ 42.126292] do_vfs_ioctl+0x1de/0x1720 [ 42.130166] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 42.135430] ? ioctl_preallocate+0x300/0x300 [ 42.139825] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 42.145345] ? __fget_light+0x2e9/0x430 [ 42.149323] ? fget_raw+0x20/0x20 [ 42.152761] ? putname+0xf2/0x130 [ 42.156215] ? rcu_read_lock_sched_held+0x108/0x120 [ 42.161218] ? kmem_cache_free+0x24f/0x290 [ 42.165440] ? putname+0xf7/0x130 [ 42.168886] ? do_syscall_64+0x9a/0x820 [ 42.172844] ? do_syscall_64+0x9a/0x820 [ 42.176801] ? lockdep_hardirqs_on+0x421/0x5c0 [ 42.181366] ? security_file_ioctl+0x94/0xc0 [ 42.185904] ksys_ioctl+0xa9/0xd0 [ 42.189352] __x64_sys_ioctl+0x73/0xb0 [ 42.193225] do_syscall_64+0x1b9/0x820 [ 42.197098] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 42.202488] ? syscall_return_slowpath+0x5e0/0x5e0 [ 42.207416] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.212245] ? trace_hardirqs_on_caller+0x310/0x310 [ 42.217683] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 42.222687] ? prepare_exit_to_usermode+0x291/0x3b0 [ 42.227704] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.232535] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.237720] RIP: 0033:0x440019 [ 42.240903] 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 [ 42.260013] RSP: 002b:00007ffc8a69c708 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 42.267980] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440019 [ 42.275234] RDX: 0000000000440019 RSI: 0000000000006611 RDI: 0000000000000003 [ 42.282489] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 42.289790] R10: 0000000000000000 R11: 0000000000000213 R12: 00000000004018a0 [ 42.297049] R13: 0000000000401930 R14: 0000000000000000 R15: 0000000000000000 [ 42.304307] Modules linked in: [ 42.307632] ---[ end trace a92afa1b2ebff8d7 ]--- [ 42.312395] RIP: 0010:rb_erase+0x306/0x3710 [ 42.316815] 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 [ 42.335759] RSP: 0018:ffff8801cc4c6918 EFLAGS: 00010202 [ 42.341147] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 42.348416] RDX: 1ffff10039898d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 42.355670] RBP: ffff8801cc4c7320 R08: dffffc0000000000 R09: fffffbfff12d69a0 [ 42.362956] R10: fffffbfff12d69a0 R11: ffffffff896b4d03 R12: ffff8801b72fa970 [ 42.370246] R13: dffffc0000000000 R14: ffff8801cc4c72f8 R15: ffff8801cc4c7438 [ 42.377544] FS: 0000000001210880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 42.385759] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.391678] CR2: 00000000200002c0 CR3: 00000001c5603000 CR4: 00000000001406f0 [ 42.398951] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.406203] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.413492] Kernel panic - not syncing: Fatal exception [ 42.419962] Kernel Offset: disabled [ 42.423814] Rebooting in 86400 seconds..