[info] Using makefile-style concurrent boot in runlevel 2. [ 24.437023] audit: type=1800 audit(1539665899.830:21): pid=5180 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.466342] audit: type=1800 audit(1539665899.830:22): pid=5180 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 '10.128.10.54' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 39.234765] kasan: CONFIG_KASAN_INLINE enabled [ 39.239649] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 39.247104] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 39.253457] CPU: 1 PID: 5336 Comm: syz-executor864 Not tainted 4.19.0-rc8+ #285 [ 39.260900] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.270265] RIP: 0010:rb_erase+0x306/0x3710 [ 39.274801] 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 [ 39.293838] RSP: 0018:ffff8801bb136918 EFLAGS: 00010202 [ 39.299194] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 39.306459] RDX: 1ffff10037626d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 39.313718] RBP: ffff8801bb137320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 39.320975] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801c2c0a2f0 [ 39.328231] R13: dffffc0000000000 R14: ffff8801bb1372f8 R15: ffff8801bb137438 [ 39.335493] FS: 00000000012e1880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 39.343829] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.349701] CR2: 0000000020000700 CR3: 00000001b79d6000 CR4: 00000000001406e0 [ 39.356963] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.364218] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.371569] Call Trace: [ 39.374160] ? lockdep_on+0x50/0x50 [ 39.377778] ? rb_insert_color+0x1460/0x1460 [ 39.382332] ? lock_downgrade+0x900/0x900 [ 39.386470] ? noop_count+0x40/0x40 [ 39.390082] ? lock_pin_lock+0x350/0x350 [ 39.394130] ? rcu_bh_qs+0xc0/0xc0 [ 39.397666] ? unwind_dump+0x190/0x190 [ 39.401541] ? kasan_check_read+0x11/0x20 [ 39.405676] ? noop_count+0x40/0x40 [ 39.409287] ? lock_pin_lock+0x350/0x350 [ 39.413334] ? mark_held_locks+0x130/0x130 [ 39.417562] ? check_usage_forwards+0x3e0/0x3e0 [ 39.422215] ? __bfs+0x385/0x7a0 [ 39.425568] ? check_usage+0x1a9/0x790 [ 39.429442] ? lock_pin_lock+0x350/0x350 [ 39.433490] ? check_usage_forwards+0x3e0/0x3e0 [ 39.438142] ? __bfs+0x385/0x7a0 [ 39.441518] ? lockdep_on+0x50/0x50 [ 39.445133] ? lock_pin_lock+0x350/0x350 [ 39.449192] ? mark_held_locks+0x130/0x130 [ 39.453410] ? kasan_check_read+0x11/0x20 [ 39.457546] ? __lock_acquire+0x2881/0x4ec0 [ 39.461855] ? mark_held_locks+0x130/0x130 [ 39.466073] ? print_usage_bug+0xc0/0xc0 [ 39.470118] ? _raw_spin_unlock+0x2c/0x50 [ 39.474251] ? graph_lock+0x170/0x170 [ 39.478038] ? ext4_exit_mballoc+0xc0/0xc0 [ 39.482266] ? __lock_acquire+0x7ec/0x4ec0 [ 39.486528] ? find_held_lock+0x36/0x1c0 [ 39.490588] ? mark_held_locks+0x130/0x130 [ 39.494807] ? lock_downgrade+0x900/0x900 [ 39.498939] ? ext4_es_scan+0x960/0x960 [ 39.502901] ? do_raw_write_trylock+0x1c0/0x1c0 [ 39.507558] ? kasan_check_write+0x14/0x20 [ 39.511785] ? lock_acquire+0x1ed/0x520 [ 39.515746] ? integrity_inode_free+0x77/0x320 [ 39.520315] ? ext4_es_remove_extent+0x151/0x500 [ 39.525055] ? lock_release+0x970/0x970 [ 39.529019] ? kasan_check_write+0x14/0x20 [ 39.533242] ? do_raw_write_lock+0xbd/0x1b0 [ 39.537552] integrity_inode_free+0x12f/0x320 [ 39.542382] security_inode_free+0x19/0x90 [ 39.546621] __destroy_inode+0x328/0x820 [ 39.550682] ? generic_update_time+0x450/0x450 [ 39.555248] ? evict+0x5d8/0x980 [ 39.558600] ? lock_downgrade+0x900/0x900 [ 39.562740] ? __inode_wait_for_writeback+0x2cf/0x380 [ 39.567923] destroy_inode+0xda/0x200 [ 39.571707] ? __destroy_inode+0x820/0x820 [ 39.575925] ? kasan_check_write+0x14/0x20 [ 39.580147] ? do_raw_spin_lock+0xc1/0x200 [ 39.584374] evict+0x5e0/0x980 [ 39.587625] ? destroy_inode+0x200/0x200 [ 39.591676] ? iput+0x671/0xa90 [ 39.594937] ? lock_downgrade+0x900/0x900 [ 39.599069] ? kasan_check_read+0x11/0x20 [ 39.603209] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 39.607784] ? lock_downgrade+0x900/0x900 [ 39.611915] iput+0x679/0xa90 [ 39.615001] ? inode_add_lru+0x2a0/0x2a0 [ 39.619046] ? up_write+0x7b/0x220 [ 39.622568] ? up_read+0x110/0x110 [ 39.626088] ? up_read+0x110/0x110 [ 39.629611] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.635134] ? check_preemption_disabled+0x48/0x200 [ 39.640142] ext4_ioctl+0x236f/0x4210 [ 39.643934] ? ext4_ioctl_group_add+0x560/0x560 [ 39.648590] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 39.654368] ? kasan_check_read+0x11/0x20 [ 39.658498] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 39.663887] ? rcu_bh_qs+0xc0/0xc0 [ 39.667480] ? rcu_bh_qs+0xc0/0xc0 [ 39.671011] ? unwind_dump+0x190/0x190 [ 39.674881] ? is_bpf_text_address+0xd3/0x170 [ 39.679366] ? kernel_text_address+0x79/0xf0 [ 39.683835] ? __kernel_text_address+0xd/0x40 [ 39.688322] ? unwind_get_return_address+0x61/0xa0 [ 39.693306] ? __save_stack_trace+0x8d/0xf0 [ 39.697620] ? save_stack+0xa9/0xd0 [ 39.701232] ? save_stack+0x43/0xd0 [ 39.704847] ? __kasan_slab_free+0x102/0x150 [ 39.709291] ? kasan_slab_free+0xe/0x10 [ 39.713264] ? kmem_cache_free+0x83/0x290 [ 39.717400] ? putname+0xf2/0x130 [ 39.720842] ? do_sys_open+0x54d/0x700 [ 39.724712] ? __x64_sys_open+0x7e/0xc0 [ 39.728672] ? do_syscall_64+0x1b9/0x820 [ 39.732717] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.738069] ? trace_hardirqs_off+0xb8/0x310 [ 39.742455] ? kasan_check_read+0x11/0x20 [ 39.746595] ? do_raw_spin_unlock+0xa7/0x2f0 [ 39.751002] ? trace_hardirqs_on+0x310/0x310 [ 39.755392] ? kasan_check_write+0x14/0x20 [ 39.759610] ? trace_hardirqs_off+0xb8/0x310 [ 39.764003] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.769533] ? check_preemption_disabled+0x48/0x200 [ 39.774534] ? ext4_ioctl_group_add+0x560/0x560 [ 39.779190] do_vfs_ioctl+0x1de/0x1720 [ 39.783066] ? rcu_lockdep_current_cpu_online+0x1f0/0x2d0 [ 39.788588] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 39.793848] ? ioctl_preallocate+0x300/0x300 [ 39.798241] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.803761] ? __fget_light+0x2e9/0x430 [ 39.807722] ? fget_raw+0x20/0x20 [ 39.811166] ? rcu_read_lock_sched_held+0x108/0x120 [ 39.816178] ? kmem_cache_free+0x24f/0x290 [ 39.820398] ? putname+0xf7/0x130 [ 39.823838] ? do_syscall_64+0x9a/0x820 [ 39.827795] ? do_syscall_64+0x9a/0x820 [ 39.831754] ? lockdep_hardirqs_on+0x421/0x5c0 [ 39.836322] ? security_file_ioctl+0x94/0xc0 [ 39.840719] ksys_ioctl+0xa9/0xd0 [ 39.844166] __x64_sys_ioctl+0x73/0xb0 [ 39.848042] do_syscall_64+0x1b9/0x820 [ 39.851914] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 39.857311] ? syscall_return_slowpath+0x5e0/0x5e0 [ 39.862231] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.867063] ? trace_hardirqs_on_caller+0x310/0x310 [ 39.872064] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 39.877062] ? prepare_exit_to_usermode+0x291/0x3b0 [ 39.882063] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.886898] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.892075] RIP: 0033:0x440029 [ 39.895254] 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 [ 39.914238] RSP: 002b:00007ffcb16d7a98 EFLAGS: 00000207 ORIG_RAX: 0000000000000010 [ 39.921938] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440029 [ 39.929243] RDX: 0000000000440029 RSI: 0000000000006611 RDI: 0000000000000003 [ 39.936500] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 39.943757] R10: 0000000000000000 R11: 0000000000000207 R12: 00000000004018b0 [ 39.951055] R13: 0000000000401940 R14: 0000000000000000 R15: 0000000000000000 [ 39.958333] Modules linked in: [ 39.961633] ---[ end trace 77e8f27b77108a4b ]--- [ 39.966404] RIP: 0010:rb_erase+0x306/0x3710 [ 39.970796] 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 [ 39.989750] RSP: 0018:ffff8801bb136918 EFLAGS: 00010202 [ 39.995114] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 40.002494] RDX: 1ffff10037626d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 40.009852] RBP: ffff8801bb137320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 40.017237] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801c2c0a2f0 [ 40.024565] R13: dffffc0000000000 R14: ffff8801bb1372f8 R15: ffff8801bb137438 [ 40.031873] FS: 00000000012e1880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 40.040141] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.046027] CR2: 0000000020000700 CR3: 00000001b79d6000 CR4: 00000000001406e0 [ 40.053412] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.060726] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.068036] Kernel panic - not syncing: Fatal exception [ 40.074475] Kernel Offset: disabled [ 40.078100] Rebooting in 86400 seconds..