[info] Using makefile-style concurrent boot in runlevel 2. [ 24.208729] audit: type=1800 audit(1538562583.300:21): pid=5201 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 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 '10.128.0.52' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 38.642110] kasan: CONFIG_KASAN_INLINE enabled [ 38.646780] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 38.654203] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 38.660443] CPU: 1 PID: 5357 Comm: syz-executor405 Not tainted 4.19.0-rc5+ #241 [ 38.667888] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.677240] RIP: 0010:rb_erase+0x306/0x3710 [ 38.681545] 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 [ 38.700429] RSP: 0018:ffff8801bb0e6918 EFLAGS: 00010202 [ 38.705772] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 38.713036] RDX: 1ffff1003761cd2b RSI: ffffffff8afc18a0 RDI: 0000000000000008 [ 38.720289] RBP: ffff8801bb0e7320 R08: dffffc0000000000 R09: fffffbfff12d6a90 [ 38.727538] R10: fffffbfff12d6a90 R11: ffffffff896b5483 R12: ffff8801c380a2b0 [ 38.734806] R13: dffffc0000000000 R14: ffff8801bb0e72f8 R15: ffff8801bb0e7438 [ 38.742076] FS: 00000000014b1880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 38.750284] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.756144] CR2: 0000000020000080 CR3: 00000001d9570000 CR4: 00000000001406e0 [ 38.763401] Call Trace: [ 38.765975] ? lockdep_on+0x50/0x50 [ 38.769588] ? rb_insert_color+0x1460/0x1460 [ 38.773981] ? noop_count+0x40/0x40 [ 38.777599] ? lock_pin_lock+0x350/0x350 [ 38.781648] ? noop_count+0x40/0x40 [ 38.785257] ? kasan_check_read+0x11/0x20 [ 38.789386] ? noop_count+0x40/0x40 [ 38.793005] ? noop_count+0x40/0x40 [ 38.796615] ? lock_pin_lock+0x350/0x350 [ 38.800670] ? mark_held_locks+0x130/0x130 [ 38.804898] ? check_usage_forwards+0x3e0/0x3e0 [ 38.809555] ? __bfs+0x385/0x7a0 [ 38.812904] ? noop_count+0x40/0x40 [ 38.816517] ? check_usage+0x1a9/0x790 [ 38.820421] ? lock_pin_lock+0x350/0x350 [ 38.824466] ? check_usage_forwards+0x3e0/0x3e0 [ 38.829115] ? __bfs+0x385/0x7a0 [ 38.832467] ? __lock_acquire+0x7ec/0x4ec0 [ 38.836687] ? lockdep_on+0x50/0x50 [ 38.840295] ? lock_pin_lock+0x350/0x350 [ 38.844347] ? mark_held_locks+0x130/0x130 [ 38.848568] ? kasan_check_read+0x11/0x20 [ 38.852712] ? __lock_acquire+0x2881/0x4ec0 [ 38.857035] ? mark_held_locks+0x130/0x130 [ 38.861254] ? print_usage_bug+0xc0/0xc0 [ 38.865302] ? _raw_spin_unlock+0x2c/0x50 [ 38.869447] ? graph_lock+0x170/0x170 [ 38.873259] ? ext4_exit_mballoc+0xc0/0xc0 [ 38.877479] ? __lock_acquire+0x7ec/0x4ec0 [ 38.881715] ? find_held_lock+0x36/0x1c0 [ 38.885763] ? mark_held_locks+0x130/0x130 [ 38.889984] ? lock_downgrade+0x900/0x900 [ 38.894118] ? ext4_es_scan+0x960/0x960 [ 38.898076] ? do_raw_write_trylock+0x1c0/0x1c0 [ 38.902728] ? kasan_check_write+0x14/0x20 [ 38.906945] ? lock_acquire+0x1ed/0x520 [ 38.910907] ? integrity_inode_free+0x77/0x320 [ 38.915470] ? ext4_es_remove_extent+0x151/0x500 [ 38.920208] ? lock_release+0x970/0x970 [ 38.924165] ? kasan_check_write+0x14/0x20 [ 38.928381] ? do_raw_write_lock+0xbd/0x1b0 [ 38.932693] integrity_inode_free+0x12f/0x320 [ 38.937174] security_inode_free+0x19/0x90 [ 38.941402] __destroy_inode+0x328/0x820 [ 38.945449] ? generic_update_time+0x450/0x450 [ 38.950023] ? evict+0x5d8/0x980 [ 38.953374] ? lock_downgrade+0x900/0x900 [ 38.957514] ? __inode_wait_for_writeback+0x2cf/0x380 [ 38.962689] destroy_inode+0xda/0x200 [ 38.966501] ? __destroy_inode+0x820/0x820 [ 38.970719] ? kasan_check_write+0x14/0x20 [ 38.974950] ? do_raw_spin_lock+0xc1/0x200 [ 38.979167] evict+0x5e0/0x980 [ 38.982357] ? destroy_inode+0x200/0x200 [ 38.986418] ? iput+0x671/0xa90 [ 38.989697] ? lock_downgrade+0x900/0x900 [ 38.993834] ? kasan_check_read+0x11/0x20 [ 38.997967] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 39.002532] ? lock_downgrade+0x900/0x900 [ 39.006661] iput+0x679/0xa90 [ 39.009749] ? inode_add_lru+0x2a0/0x2a0 [ 39.013794] ? up_write+0x7b/0x220 [ 39.017316] ? up_read+0x110/0x110 [ 39.020851] ? up_read+0x110/0x110 [ 39.024373] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.029917] ? check_preemption_disabled+0x48/0x200 [ 39.034934] ext4_ioctl+0x236f/0x4210 [ 39.038720] ? is_bpf_text_address+0xac/0x170 [ 39.043202] ? ext4_ioctl_group_add+0x560/0x560 [ 39.047869] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 39.053670] ? kasan_check_read+0x11/0x20 [ 39.057801] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 39.063063] ? rcu_bh_qs+0xc0/0xc0 [ 39.066587] ? rcu_bh_qs+0xc0/0xc0 [ 39.070108] ? unwind_dump+0x190/0x190 [ 39.073982] ? is_bpf_text_address+0xd3/0x170 [ 39.078469] ? kernel_text_address+0x79/0xf0 [ 39.082900] ? __kernel_text_address+0xd/0x40 [ 39.087416] ? unwind_get_return_address+0x61/0xa0 [ 39.092348] ? __save_stack_trace+0x8d/0xf0 [ 39.096655] ? save_stack+0xa9/0xd0 [ 39.100265] ? save_stack+0x43/0xd0 [ 39.103888] ? __kasan_slab_free+0x102/0x150 [ 39.108282] ? kasan_slab_free+0xe/0x10 [ 39.112240] ? kmem_cache_free+0x83/0x290 [ 39.116388] ? putname+0xf2/0x130 [ 39.119834] ? do_sys_open+0x54d/0x700 [ 39.123704] ? __x64_sys_openat+0x9d/0x100 [ 39.127927] ? do_syscall_64+0x1b9/0x820 [ 39.131976] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.137339] ? trace_hardirqs_off+0xb8/0x310 [ 39.141730] ? kasan_check_read+0x11/0x20 [ 39.145874] ? do_raw_spin_unlock+0xa7/0x2f0 [ 39.150299] ? trace_hardirqs_on+0x310/0x310 [ 39.154688] ? kasan_check_write+0x14/0x20 [ 39.158914] ? trace_hardirqs_off+0xb8/0x310 [ 39.163305] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.168830] ? check_preemption_disabled+0x48/0x200 [ 39.173853] ? check_preemption_disabled+0x48/0x200 [ 39.178873] ? ext4_ioctl_group_add+0x560/0x560 [ 39.183577] do_vfs_ioctl+0x1de/0x1720 [ 39.187465] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 39.192744] ? ioctl_preallocate+0x300/0x300 [ 39.197136] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.202656] ? __fget_light+0x2e9/0x430 [ 39.206639] ? fget_raw+0x20/0x20 [ 39.210073] ? putname+0xf2/0x130 [ 39.213509] ? rcu_read_lock_sched_held+0x108/0x120 [ 39.218512] ? kmem_cache_free+0x24f/0x290 [ 39.222749] ? putname+0xf7/0x130 [ 39.226187] ? do_syscall_64+0x9a/0x820 [ 39.230165] ? do_syscall_64+0x9a/0x820 [ 39.234124] ? lockdep_hardirqs_on+0x421/0x5c0 [ 39.238690] ? security_file_ioctl+0x94/0xc0 [ 39.243093] ksys_ioctl+0xa9/0xd0 [ 39.246528] __x64_sys_ioctl+0x73/0xb0 [ 39.250423] do_syscall_64+0x1b9/0x820 [ 39.254309] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 39.259685] ? syscall_return_slowpath+0x5e0/0x5e0 [ 39.264598] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.269426] ? trace_hardirqs_on_caller+0x310/0x310 [ 39.274426] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 39.279438] ? prepare_exit_to_usermode+0x291/0x3b0 [ 39.284771] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.289601] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.294770] RIP: 0033:0x4400d9 [ 39.297961] 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 [ 39.316871] RSP: 002b:00007fffad25b258 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 39.324572] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004400d9 [ 39.331825] RDX: 0000000020000040 RSI: 0000000000006611 RDI: 0000000000000003 [ 39.339082] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 39.346343] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401960 [ 39.353608] R13: 00000000004019f0 R14: 0000000000000000 R15: 0000000000000000 [ 39.360865] Modules linked in: [ 39.364186] ---[ end trace 507065440f5cd69f ]--- [ 39.368975] RIP: 0010:rb_erase+0x306/0x3710 [ 39.373304] 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 [ 39.392234] RSP: 0018:ffff8801bb0e6918 EFLAGS: 00010202 [ 39.397601] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 39.404909] RDX: 1ffff1003761cd2b RSI: ffffffff8afc18a0 RDI: 0000000000000008 [ 39.412224] RBP: ffff8801bb0e7320 R08: dffffc0000000000 R09: fffffbfff12d6a90 [ 39.419512] R10: fffffbfff12d6a90 R11: ffffffff896b5483 R12: ffff8801c380a2b0 [ 39.426795] R13: dffffc0000000000 R14: ffff8801bb0e72f8 R15: ffff8801bb0e7438 [ 39.434082] FS: 00000000014b1880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 39.442322] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.448192] CR2: 0000000020000080 CR3: 00000001d9570000 CR4: 00000000001406e0 [ 39.455505] Kernel panic - not syncing: Fatal exception [ 39.461829] Kernel Offset: disabled [ 39.465451] Rebooting in 86400 seconds..