[info] Using makefile-style concurrent boot in runlevel 2. [ 23.836271] audit: type=1800 audit(1539475860.235:21): pid=5168 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 23.858599] audit: type=1800 audit(1539475860.245:22): pid=5168 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 '10.128.0.21' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 35.702039] kasan: CONFIG_KASAN_INLINE enabled [ 35.706707] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 35.714169] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 35.720403] CPU: 1 PID: 5322 Comm: syz-executor202 Not tainted 4.19.0-rc7+ #140 [ 35.727828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.737190] RIP: 0010:rb_erase+0x306/0x3710 [ 35.741496] 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 [ 35.760396] RSP: 0018:ffff8801bb046918 EFLAGS: 00010202 [ 35.765742] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 35.772996] RDX: 1ffff10037608d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 35.780576] RBP: ffff8801bb047320 R08: dffffc0000000000 R09: fffffbfff12d69a0 [ 35.788094] R10: fffffbfff12d69a0 R11: ffffffff896b4d03 R12: ffff8801b763c8f0 [ 35.795345] R13: dffffc0000000000 R14: ffff8801bb0472f8 R15: ffff8801bb047438 [ 35.802601] FS: 00000000007fa880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 35.810808] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.816674] CR2: 0000000020000080 CR3: 00000001d8836000 CR4: 00000000001406e0 [ 35.823927] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.831181] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.838439] Call Trace: [ 35.841016] ? lockdep_on+0x50/0x50 [ 35.844626] ? rb_insert_color+0x1460/0x1460 [ 35.849018] ? noop_count+0x40/0x40 [ 35.852627] ? lock_pin_lock+0x350/0x350 [ 35.856670] ? noop_count+0x40/0x40 [ 35.860281] ? kasan_check_read+0x11/0x20 [ 35.864411] ? noop_count+0x40/0x40 [ 35.868021] ? noop_count+0x40/0x40 [ 35.871646] ? lock_pin_lock+0x350/0x350 [ 35.875697] ? mark_held_locks+0x130/0x130 [ 35.879915] ? check_usage_forwards+0x3e0/0x3e0 [ 35.884600] ? __bfs+0x385/0x7a0 [ 35.887961] ? noop_count+0x40/0x40 [ 35.891586] ? check_usage+0x1a9/0x790 [ 35.895456] ? lock_pin_lock+0x350/0x350 [ 35.899503] ? check_usage_forwards+0x3e0/0x3e0 [ 35.904152] ? __bfs+0x385/0x7a0 [ 35.907525] ? __lock_acquire+0x7ec/0x4ec0 [ 35.911744] ? lockdep_on+0x50/0x50 [ 35.915353] ? lock_pin_lock+0x350/0x350 [ 35.919402] ? mark_held_locks+0x130/0x130 [ 35.923621] ? kasan_check_read+0x11/0x20 [ 35.927749] ? __lock_acquire+0x2881/0x4ec0 [ 35.932056] ? mark_held_locks+0x130/0x130 [ 35.936275] ? print_usage_bug+0xc0/0xc0 [ 35.940317] ? _raw_spin_unlock+0x2c/0x50 [ 35.944452] ? graph_lock+0x170/0x170 [ 35.948238] ? ext4_exit_mballoc+0xc0/0xc0 [ 35.952456] ? __lock_acquire+0x7ec/0x4ec0 [ 35.956676] ? find_held_lock+0x36/0x1c0 [ 35.960738] ? mark_held_locks+0x130/0x130 [ 35.964958] ? lock_downgrade+0x900/0x900 [ 35.969113] ? ext4_es_scan+0x960/0x960 [ 35.973095] ? lock_release+0x970/0x970 [ 35.977055] ? do_raw_write_trylock+0x1c0/0x1c0 [ 35.981709] ? kasan_check_write+0x14/0x20 [ 35.985927] ? lock_acquire+0x1ed/0x520 [ 35.989900] ? integrity_inode_free+0x77/0x320 [ 35.994480] ? ext4_es_remove_extent+0x151/0x500 [ 35.999230] ? lock_release+0x970/0x970 [ 36.003188] ? kasan_check_write+0x14/0x20 [ 36.007421] ? do_raw_write_lock+0xbd/0x1b0 [ 36.011727] integrity_inode_free+0x12f/0x320 [ 36.016205] security_inode_free+0x19/0x90 [ 36.020423] __destroy_inode+0x328/0x820 [ 36.024484] ? generic_update_time+0x450/0x450 [ 36.029066] ? evict+0x5d8/0x980 [ 36.032427] ? lock_downgrade+0x900/0x900 [ 36.036582] ? __inode_wait_for_writeback+0x2cf/0x380 [ 36.041762] destroy_inode+0xda/0x200 [ 36.045568] ? __destroy_inode+0x820/0x820 [ 36.049789] ? kasan_check_write+0x14/0x20 [ 36.054007] ? do_raw_spin_lock+0xc1/0x200 [ 36.058247] evict+0x5e0/0x980 [ 36.061427] ? destroy_inode+0x200/0x200 [ 36.065470] ? iput+0x671/0xa90 [ 36.068736] ? lock_downgrade+0x900/0x900 [ 36.072868] ? kasan_check_read+0x11/0x20 [ 36.076998] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 36.081570] ? lock_downgrade+0x900/0x900 [ 36.085706] iput+0x679/0xa90 [ 36.088795] ? inode_add_lru+0x2a0/0x2a0 [ 36.092856] ? up_write+0x7b/0x220 [ 36.096412] ? up_read+0x110/0x110 [ 36.099937] ? up_read+0x110/0x110 [ 36.103461] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.108985] ? check_preemption_disabled+0x48/0x200 [ 36.113987] ext4_ioctl+0x236f/0x4210 [ 36.117772] ? is_bpf_text_address+0xac/0x170 [ 36.122254] ? ext4_ioctl_group_add+0x560/0x560 [ 36.126921] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 36.132703] ? kasan_check_read+0x11/0x20 [ 36.136850] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 36.142110] ? rcu_bh_qs+0xc0/0xc0 [ 36.145634] ? rcu_bh_qs+0xc0/0xc0 [ 36.149156] ? unwind_dump+0x190/0x190 [ 36.153032] ? is_bpf_text_address+0xd3/0x170 [ 36.157510] ? kernel_text_address+0x79/0xf0 [ 36.161900] ? __kernel_text_address+0xd/0x40 [ 36.166392] ? unwind_get_return_address+0x61/0xa0 [ 36.171309] ? __save_stack_trace+0x8d/0xf0 [ 36.175617] ? save_stack+0xa9/0xd0 [ 36.179243] ? save_stack+0x43/0xd0 [ 36.182853] ? __kasan_slab_free+0x102/0x150 [ 36.187241] ? kasan_slab_free+0xe/0x10 [ 36.191197] ? kmem_cache_free+0x83/0x290 [ 36.195325] ? putname+0xf2/0x130 [ 36.198761] ? do_sys_open+0x54d/0x700 [ 36.202631] ? __x64_sys_openat+0x9d/0x100 [ 36.206847] ? do_syscall_64+0x1b9/0x820 [ 36.210891] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.216252] ? trace_hardirqs_off+0xb8/0x310 [ 36.220641] ? kasan_check_read+0x11/0x20 [ 36.224789] ? do_raw_spin_unlock+0xa7/0x2f0 [ 36.229180] ? trace_hardirqs_on+0x310/0x310 [ 36.233593] ? kasan_check_write+0x14/0x20 [ 36.237811] ? trace_hardirqs_off+0xb8/0x310 [ 36.242205] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.247725] ? check_preemption_disabled+0x48/0x200 [ 36.252724] ? check_preemption_disabled+0x48/0x200 [ 36.257722] ? ext4_ioctl_group_add+0x560/0x560 [ 36.262374] do_vfs_ioctl+0x1de/0x1720 [ 36.266244] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 36.271504] ? ioctl_preallocate+0x300/0x300 [ 36.275895] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.281418] ? __fget_light+0x2e9/0x430 [ 36.285375] ? fget_raw+0x20/0x20 [ 36.288810] ? putname+0xf2/0x130 [ 36.292263] ? rcu_read_lock_sched_held+0x108/0x120 [ 36.297262] ? kmem_cache_free+0x24f/0x290 [ 36.301483] ? putname+0xf7/0x130 [ 36.304919] ? do_syscall_64+0x9a/0x820 [ 36.308876] ? do_syscall_64+0x9a/0x820 [ 36.312836] ? lockdep_hardirqs_on+0x421/0x5c0 [ 36.317403] ? security_file_ioctl+0x94/0xc0 [ 36.321795] ksys_ioctl+0xa9/0xd0 [ 36.325230] __x64_sys_ioctl+0x73/0xb0 [ 36.329105] do_syscall_64+0x1b9/0x820 [ 36.332978] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 36.338323] ? syscall_return_slowpath+0x5e0/0x5e0 [ 36.343239] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.348063] ? trace_hardirqs_on_caller+0x310/0x310 [ 36.353080] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 36.358085] ? prepare_exit_to_usermode+0x291/0x3b0 [ 36.363090] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.367918] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.373100] RIP: 0033:0x440009 [ 36.376275] 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 [ 36.395160] RSP: 002b:00007ffc39a11bc8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 36.402852] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 36.410102] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 36.417351] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 36.424600] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 36.431852] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 36.439120] Modules linked in: [ 36.442389] ---[ end trace e4385eb0fe80c598 ]--- [ 36.447155] RIP: 0010:rb_erase+0x306/0x3710 [ 36.451609] 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 [ 36.470570] RSP: 0018:ffff8801bb046918 EFLAGS: 00010202 [ 36.475935] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 36.483216] RDX: 1ffff10037608d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 36.490502] RBP: ffff8801bb047320 R08: dffffc0000000000 R09: fffffbfff12d69a0 [ 36.497773] R10: fffffbfff12d69a0 R11: ffffffff896b4d03 R12: ffff8801b763c8f0 [ 36.505054] R13: dffffc0000000000 R14: ffff8801bb0472f8 R15: ffff8801bb047438 [ 36.512348] FS: 00000000007fa880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 36.520595] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.526474] CR2: 0000000020000080 CR3: 00000001d8836000 CR4: 00000000001406e0 [ 36.533774] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.541084] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.548389] Kernel panic - not syncing: Fatal exception [ 36.554703] Kernel Offset: disabled [ 36.558323] Rebooting in 86400 seconds..