[info] Using makefile-style concurrent boot in runlevel 2. [ 24.424495] audit: type=1800 audit(1539847053.320:21): pid=5199 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.452699] audit: type=1800 audit(1539847053.330:22): pid=5199 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 '10.128.0.80' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 37.005461] kasan: CONFIG_KASAN_INLINE enabled [ 37.010255] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 37.017750] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 37.024005] CPU: 1 PID: 5354 Comm: syz-executor705 Not tainted 4.19.0-rc8+ #288 [ 37.031432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.040781] RIP: 0010:rb_erase+0x306/0x3710 [ 37.045084] 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 [ 37.063971] RSP: 0018:ffff8801d8d6e918 EFLAGS: 00010202 [ 37.069320] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 37.076592] RDX: 1ffff1003b1add2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 37.083864] RBP: ffff8801d8d6f320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 37.091119] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801b6e60970 [ 37.098374] R13: dffffc0000000000 R14: ffff8801d8d6f2f8 R15: ffff8801d8d6f438 [ 37.105626] FS: 00000000023a4880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 37.113831] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.119696] CR2: 0000000020000080 CR3: 00000001d923e000 CR4: 00000000001406e0 [ 37.126950] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.134202] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.141455] Call Trace: [ 37.144054] ? lockdep_on+0x50/0x50 [ 37.147758] ? rb_insert_color+0x1460/0x1460 [ 37.152163] ? lock_downgrade+0x900/0x900 [ 37.156296] ? noop_count+0x40/0x40 [ 37.159906] ? lock_pin_lock+0x350/0x350 [ 37.163951] ? rcu_bh_qs+0xc0/0xc0 [ 37.167480] ? unwind_dump+0x190/0x190 [ 37.171355] ? kasan_check_read+0x11/0x20 [ 37.175490] ? noop_count+0x40/0x40 [ 37.179100] ? lock_pin_lock+0x350/0x350 [ 37.183141] ? mark_held_locks+0x130/0x130 [ 37.187372] ? check_usage_forwards+0x3e0/0x3e0 [ 37.192025] ? __bfs+0x385/0x7a0 [ 37.195377] ? check_usage+0x1a9/0x790 [ 37.199249] ? lock_pin_lock+0x350/0x350 [ 37.203296] ? check_usage_forwards+0x3e0/0x3e0 [ 37.207954] ? __bfs+0x385/0x7a0 [ 37.211309] ? modules_open+0xa0/0xa0 [ 37.215097] ? lockdep_on+0x50/0x50 [ 37.218707] ? lock_pin_lock+0x350/0x350 [ 37.222754] ? mark_held_locks+0x130/0x130 [ 37.226973] ? kasan_check_read+0x11/0x20 [ 37.231104] ? __lock_acquire+0x2881/0x4ec0 [ 37.235409] ? mark_held_locks+0x130/0x130 [ 37.239646] ? print_usage_bug+0xc0/0xc0 [ 37.243694] ? _raw_spin_unlock+0x2c/0x50 [ 37.247831] ? graph_lock+0x170/0x170 [ 37.251636] ? ext4_exit_mballoc+0xc0/0xc0 [ 37.255859] ? __lock_acquire+0x7ec/0x4ec0 [ 37.260078] ? find_held_lock+0x36/0x1c0 [ 37.264124] ? mark_held_locks+0x130/0x130 [ 37.268348] ? lock_downgrade+0x900/0x900 [ 37.272487] ? ext4_es_scan+0x960/0x960 [ 37.276444] ? do_raw_write_trylock+0x1c0/0x1c0 [ 37.281098] ? kasan_check_write+0x14/0x20 [ 37.285313] ? lock_acquire+0x1ed/0x520 [ 37.289278] ? integrity_inode_free+0x77/0x320 [ 37.293841] ? ext4_es_remove_extent+0x151/0x500 [ 37.298583] ? lock_release+0x970/0x970 [ 37.302540] ? kasan_check_write+0x14/0x20 [ 37.306759] ? do_raw_write_lock+0xbd/0x1b0 [ 37.311064] integrity_inode_free+0x12f/0x320 [ 37.315547] security_inode_free+0x19/0x90 [ 37.319766] __destroy_inode+0x328/0x820 [ 37.323810] ? generic_update_time+0x450/0x450 [ 37.328374] ? evict+0x5d8/0x980 [ 37.331741] ? lock_downgrade+0x900/0x900 [ 37.335878] ? __inode_wait_for_writeback+0x2cf/0x380 [ 37.341054] destroy_inode+0xda/0x200 [ 37.344835] ? __destroy_inode+0x820/0x820 [ 37.349057] ? kasan_check_write+0x14/0x20 [ 37.353281] ? do_raw_spin_lock+0xc1/0x200 [ 37.357508] evict+0x5e0/0x980 [ 37.360693] ? destroy_inode+0x200/0x200 [ 37.364736] ? iput+0x671/0xa90 [ 37.367998] ? lock_downgrade+0x900/0x900 [ 37.372146] ? kasan_check_read+0x11/0x20 [ 37.376280] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 37.380847] ? lock_downgrade+0x900/0x900 [ 37.384981] iput+0x679/0xa90 [ 37.388097] ? inode_add_lru+0x2a0/0x2a0 [ 37.392155] ? up_write+0x7b/0x220 [ 37.395674] ? up_read+0x110/0x110 [ 37.399196] ? up_read+0x110/0x110 [ 37.402719] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.408243] ? check_preemption_disabled+0x48/0x200 [ 37.413246] ext4_ioctl+0x236f/0x4210 [ 37.417031] ? is_bpf_text_address+0xac/0x170 [ 37.421509] ? ext4_ioctl_group_add+0x560/0x560 [ 37.426165] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 37.431957] ? kasan_check_read+0x11/0x20 [ 37.436101] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 37.441364] ? rcu_bh_qs+0xc0/0xc0 [ 37.444889] ? rcu_bh_qs+0xc0/0xc0 [ 37.448415] ? unwind_dump+0x190/0x190 [ 37.452288] ? is_bpf_text_address+0xd3/0x170 [ 37.456767] ? kernel_text_address+0x79/0xf0 [ 37.461161] ? __kernel_text_address+0xd/0x40 [ 37.465656] ? unwind_get_return_address+0x61/0xa0 [ 37.470571] ? __save_stack_trace+0x8d/0xf0 [ 37.474878] ? save_stack+0xa9/0xd0 [ 37.478489] ? save_stack+0x43/0xd0 [ 37.482098] ? __kasan_slab_free+0x102/0x150 [ 37.486484] ? kasan_slab_free+0xe/0x10 [ 37.490442] ? kmem_cache_free+0x83/0x290 [ 37.494573] ? putname+0xf2/0x130 [ 37.498011] ? do_sys_open+0x54d/0x700 [ 37.501881] ? __x64_sys_openat+0x9d/0x100 [ 37.506099] ? do_syscall_64+0x1b9/0x820 [ 37.510145] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.515493] ? trace_hardirqs_off+0xb8/0x310 [ 37.519896] ? kasan_check_read+0x11/0x20 [ 37.524030] ? do_raw_spin_unlock+0xa7/0x2f0 [ 37.528424] ? trace_hardirqs_on+0x310/0x310 [ 37.532814] ? kasan_check_write+0x14/0x20 [ 37.537029] ? trace_hardirqs_off+0xb8/0x310 [ 37.541423] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.546947] ? check_preemption_disabled+0x48/0x200 [ 37.551946] ? check_preemption_disabled+0x48/0x200 [ 37.556945] ? ext4_ioctl_group_add+0x560/0x560 [ 37.561620] do_vfs_ioctl+0x1de/0x1720 [ 37.565494] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 37.570755] ? ioctl_preallocate+0x300/0x300 [ 37.575145] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.580665] ? __fget_light+0x2e9/0x430 [ 37.584645] ? fget_raw+0x20/0x20 [ 37.588080] ? putname+0xf2/0x130 [ 37.591515] ? rcu_read_lock_sched_held+0x108/0x120 [ 37.596514] ? kmem_cache_free+0x24f/0x290 [ 37.600744] ? putname+0xf7/0x130 [ 37.604191] ? do_syscall_64+0x9a/0x820 [ 37.608148] ? do_syscall_64+0x9a/0x820 [ 37.612106] ? lockdep_hardirqs_on+0x421/0x5c0 [ 37.616673] ? security_file_ioctl+0x94/0xc0 [ 37.621064] ksys_ioctl+0xa9/0xd0 [ 37.624500] __x64_sys_ioctl+0x73/0xb0 [ 37.628395] do_syscall_64+0x1b9/0x820 [ 37.632269] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 37.637619] ? syscall_return_slowpath+0x5e0/0x5e0 [ 37.642529] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.647357] ? trace_hardirqs_on_caller+0x310/0x310 [ 37.652428] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 37.657440] ? prepare_exit_to_usermode+0x291/0x3b0 [ 37.662471] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.667298] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.672470] RIP: 0033:0x440009 [ 37.675646] 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 [ 37.694528] RSP: 002b:00007ffc8021b138 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 37.702218] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 37.709469] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 37.717099] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 37.724354] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 37.731611] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 37.738870] Modules linked in: [ 37.742109] ---[ end trace 8bdfb323c3b6e0e7 ]--- [ 37.746875] RIP: 0010:rb_erase+0x306/0x3710 [ 37.751235] 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 [ 37.770161] RSP: 0018:ffff8801d8d6e918 EFLAGS: 00010202 [ 37.775511] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 37.782810] RDX: 1ffff1003b1add2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 37.790120] RBP: ffff8801d8d6f320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 37.797377] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801b6e60970 [ 37.804661] R13: dffffc0000000000 R14: ffff8801d8d6f2f8 R15: ffff8801d8d6f438 [ 37.811947] FS: 00000000023a4880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 37.820189] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.826066] CR2: 0000000020000080 CR3: 00000001d923e000 CR4: 00000000001406e0 [ 37.833361] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.840652] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.847937] Kernel panic - not syncing: Fatal exception [ 37.854226] Kernel Offset: disabled [ 37.857848] Rebooting in 86400 seconds..