[info] Using makefile-style concurrent boot in runlevel 2. [ 23.098113] audit: type=1800 audit(1539474924.458:21): pid=5172 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 23.128493] audit: type=1800 audit(1539474924.468:22): pid=5172 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 '10.128.0.100' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 44.809730] kasan: CONFIG_KASAN_INLINE enabled [ 44.814516] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 44.822095] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 44.828337] CPU: 1 PID: 5330 Comm: syz-executor581 Not tainted 4.19.0-rc7+ #260 [ 44.836748] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.847863] RIP: 0010:rb_erase+0x306/0x3710 [ 44.852296] 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 [ 44.871193] RSP: 0018:ffff8801c12b6918 EFLAGS: 00010202 [ 44.876544] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 44.883871] RDX: 1ffff10038256d2b RSI: ffffffff8afc4860 RDI: 0000000000000008 [ 44.891135] RBP: ffff8801c12b7320 R08: dffffc0000000000 R09: fffffbfff12d6a60 [ 44.898608] R10: fffffbfff12d6a60 R11: ffffffff896b5303 R12: ffff8801c4801270 [ 44.905875] R13: dffffc0000000000 R14: ffff8801c12b72f8 R15: ffff8801c12b7438 [ 44.913131] FS: 00000000014a1880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 44.921345] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.927207] CR2: 0000000020000080 CR3: 00000001d9619000 CR4: 00000000001406e0 [ 44.934565] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.941824] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.949076] Call Trace: [ 44.951653] ? lockdep_on+0x50/0x50 [ 44.955265] ? rb_insert_color+0x1460/0x1460 [ 44.959662] ? noop_count+0x40/0x40 [ 44.963270] ? lock_pin_lock+0x350/0x350 [ 44.967312] ? noop_count+0x40/0x40 [ 44.970925] ? kasan_check_read+0x11/0x20 [ 44.975058] ? noop_count+0x40/0x40 [ 44.978670] ? noop_count+0x40/0x40 [ 44.982279] ? lock_pin_lock+0x350/0x350 [ 44.986321] ? mark_held_locks+0x130/0x130 [ 44.990538] ? check_usage_forwards+0x3e0/0x3e0 [ 44.995308] ? __bfs+0x385/0x7a0 [ 44.998661] ? noop_count+0x40/0x40 [ 45.002278] ? check_usage+0x1a9/0x790 [ 45.006149] ? lock_pin_lock+0x350/0x350 [ 45.010266] ? check_usage_forwards+0x3e0/0x3e0 [ 45.018751] ? __bfs+0x385/0x7a0 [ 45.022117] ? __lock_acquire+0x7ec/0x4ec0 [ 45.026460] ? lockdep_on+0x50/0x50 [ 45.030080] ? lock_pin_lock+0x350/0x350 [ 45.034133] ? mark_held_locks+0x130/0x130 [ 45.038358] ? kasan_check_read+0x11/0x20 [ 45.042506] ? __lock_acquire+0x2881/0x4ec0 [ 45.046822] ? mark_held_locks+0x130/0x130 [ 45.051048] ? print_usage_bug+0xc0/0xc0 [ 45.055098] ? _raw_spin_unlock+0x2c/0x50 [ 45.059234] ? graph_lock+0x170/0x170 [ 45.063037] ? ext4_exit_mballoc+0xc0/0xc0 [ 45.067285] ? __lock_acquire+0x7ec/0x4ec0 [ 45.071516] ? find_held_lock+0x36/0x1c0 [ 45.075678] ? mark_held_locks+0x130/0x130 [ 45.079900] ? lock_downgrade+0x900/0x900 [ 45.084046] ? ext4_es_scan+0x960/0x960 [ 45.088024] ? lock_release+0x970/0x970 [ 45.092075] ? do_raw_write_trylock+0x1c0/0x1c0 [ 45.096736] ? kasan_check_write+0x14/0x20 [ 45.100954] ? lock_acquire+0x1ed/0x520 [ 45.104912] ? integrity_inode_free+0x77/0x320 [ 45.109479] ? ext4_es_remove_extent+0x151/0x500 [ 45.114227] ? lock_release+0x970/0x970 [ 45.118200] ? kasan_check_write+0x14/0x20 [ 45.122420] ? do_raw_write_lock+0xbd/0x1b0 [ 45.126727] integrity_inode_free+0x12f/0x320 [ 45.131209] security_inode_free+0x19/0x90 [ 45.135431] __destroy_inode+0x328/0x820 [ 45.139542] ? generic_update_time+0x450/0x450 [ 45.144114] ? evict+0x5d8/0x980 [ 45.147461] ? lock_downgrade+0x900/0x900 [ 45.151592] ? __inode_wait_for_writeback+0x2cf/0x380 [ 45.156768] destroy_inode+0xda/0x200 [ 45.160550] ? __destroy_inode+0x820/0x820 [ 45.164777] ? kasan_check_write+0x14/0x20 [ 45.168997] ? do_raw_spin_lock+0xc1/0x200 [ 45.173225] evict+0x5e0/0x980 [ 45.176403] ? destroy_inode+0x200/0x200 [ 45.180451] ? iput+0x671/0xa90 [ 45.183715] ? lock_downgrade+0x900/0x900 [ 45.187844] ? kasan_check_read+0x11/0x20 [ 45.191978] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 45.196543] ? lock_downgrade+0x900/0x900 [ 45.200677] iput+0x679/0xa90 [ 45.203766] ? inode_add_lru+0x2a0/0x2a0 [ 45.207808] ? up_write+0x7b/0x220 [ 45.211331] ? up_read+0x110/0x110 [ 45.214851] ? up_read+0x110/0x110 [ 45.218386] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.223920] ? check_preemption_disabled+0x48/0x200 [ 45.228934] ext4_ioctl+0x236f/0x4210 [ 45.232720] ? is_bpf_text_address+0xac/0x170 [ 45.237315] ? ext4_ioctl_group_add+0x560/0x560 [ 45.241978] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 45.247900] ? kasan_check_read+0x11/0x20 [ 45.252042] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 45.257302] ? rcu_bh_qs+0xc0/0xc0 [ 45.260829] ? rcu_bh_qs+0xc0/0xc0 [ 45.264351] ? unwind_dump+0x190/0x190 [ 45.268236] ? is_bpf_text_address+0xd3/0x170 [ 45.272718] ? kernel_text_address+0x79/0xf0 [ 45.277113] ? __kernel_text_address+0xd/0x40 [ 45.281592] ? unwind_get_return_address+0x61/0xa0 [ 45.286506] ? __save_stack_trace+0x8d/0xf0 [ 45.290813] ? save_stack+0xa9/0xd0 [ 45.294422] ? save_stack+0x43/0xd0 [ 45.298031] ? __kasan_slab_free+0x102/0x150 [ 45.302420] ? kasan_slab_free+0xe/0x10 [ 45.306379] ? kmem_cache_free+0x83/0x290 [ 45.310508] ? putname+0xf2/0x130 [ 45.313944] ? do_sys_open+0x54d/0x700 [ 45.317812] ? __x64_sys_openat+0x9d/0x100 [ 45.322034] ? do_syscall_64+0x1b9/0x820 [ 45.326078] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.331428] ? trace_hardirqs_off+0xb8/0x310 [ 45.335818] ? kasan_check_read+0x11/0x20 [ 45.339952] ? do_raw_spin_unlock+0xa7/0x2f0 [ 45.344342] ? trace_hardirqs_on+0x310/0x310 [ 45.348814] ? kasan_check_write+0x14/0x20 [ 45.353114] ? trace_hardirqs_off+0xb8/0x310 [ 45.357516] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.363036] ? check_preemption_disabled+0x48/0x200 [ 45.368037] ? check_preemption_disabled+0x48/0x200 [ 45.373039] ? ext4_ioctl_group_add+0x560/0x560 [ 45.377705] do_vfs_ioctl+0x1de/0x1720 [ 45.381584] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 45.386852] ? ioctl_preallocate+0x300/0x300 [ 45.391287] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.396817] ? __fget_light+0x2e9/0x430 [ 45.400778] ? fget_raw+0x20/0x20 [ 45.404210] ? putname+0xf2/0x130 [ 45.407648] ? rcu_read_lock_sched_held+0x108/0x120 [ 45.412650] ? kmem_cache_free+0x24f/0x290 [ 45.416865] ? putname+0xf7/0x130 [ 45.420301] ? do_syscall_64+0x9a/0x820 [ 45.424256] ? do_syscall_64+0x9a/0x820 [ 45.428214] ? lockdep_hardirqs_on+0x421/0x5c0 [ 45.432782] ? security_file_ioctl+0x94/0xc0 [ 45.437172] ksys_ioctl+0xa9/0xd0 [ 45.440610] __x64_sys_ioctl+0x73/0xb0 [ 45.444480] do_syscall_64+0x1b9/0x820 [ 45.448350] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 45.453711] ? syscall_return_slowpath+0x5e0/0x5e0 [ 45.458626] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.463458] ? trace_hardirqs_on_caller+0x310/0x310 [ 45.468460] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 45.474090] ? prepare_exit_to_usermode+0x291/0x3b0 [ 45.479095] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.483924] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.489094] RIP: 0033:0x440009 [ 45.492271] 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 [ 45.511161] RSP: 002b:00007ffd69473ff8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 45.518864] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 45.526122] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 45.533438] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 45.540764] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 45.548033] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 45.555294] Modules linked in: [ 45.558613] ---[ end trace be3522b8e67d374c ]--- [ 45.563378] RIP: 0010:rb_erase+0x306/0x3710 [ 45.569236] 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 [ 45.588188] RSP: 0018:ffff8801c12b6918 EFLAGS: 00010202 [ 45.593695] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 45.600985] RDX: 1ffff10038256d2b RSI: ffffffff8afc4860 RDI: 0000000000000008 [ 45.608250] RBP: ffff8801c12b7320 R08: dffffc0000000000 R09: fffffbfff12d6a60 [ 45.615558] R10: fffffbfff12d6a60 R11: ffffffff896b5303 R12: ffff8801c4801270 [ 45.622856] R13: dffffc0000000000 R14: ffff8801c12b72f8 R15: ffff8801c12b7438 [ 45.630161] FS: 00000000014a1880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 45.638526] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.644403] CR2: 0000000020000080 CR3: 00000001d9619000 CR4: 00000000001406e0 [ 45.651721] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.659107] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.666477] Kernel panic - not syncing: Fatal exception [ 45.672717] Kernel Offset: disabled [ 45.676341] Rebooting in 86400 seconds..