[info] Using makefile-style concurrent boot in runlevel 2. [ 24.319494] audit: type=1800 audit(1540210615.988:21): pid=5187 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.346249] audit: type=1800 audit(1540210615.988:22): pid=5187 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 '10.128.10.4' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 41.025267] kasan: CONFIG_KASAN_INLINE enabled [ 41.030008] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 41.037373] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 41.043589] CPU: 1 PID: 5346 Comm: syz-executor888 Not tainted 4.19.0-rc8+ #152 [ 41.051016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.060364] RIP: 0010:rb_erase+0x306/0x3710 [ 41.064668] 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 [ 41.083552] RSP: 0018:ffff8801d88e6918 EFLAGS: 00010202 [ 41.088896] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 41.096161] RDX: 1ffff1003b11cd2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 41.103426] RBP: ffff8801d88e7320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 41.110692] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801b72fe2b0 [ 41.117941] R13: dffffc0000000000 R14: ffff8801d88e72f8 R15: ffff8801d88e7438 [ 41.125210] FS: 0000000002238880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 41.133417] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.139317] CR2: 0000000020000080 CR3: 00000001d9710000 CR4: 00000000001406e0 [ 41.146570] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.153823] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.161071] Call Trace: [ 41.163646] ? lockdep_on+0x50/0x50 [ 41.167258] ? rb_insert_color+0x1460/0x1460 [ 41.171649] ? lock_downgrade+0x900/0x900 [ 41.175783] ? noop_count+0x40/0x40 [ 41.179397] ? lock_pin_lock+0x350/0x350 [ 41.183444] ? rcu_bh_qs+0xc0/0xc0 [ 41.186965] ? unwind_dump+0x190/0x190 [ 41.190844] ? kasan_check_read+0x11/0x20 [ 41.194977] ? noop_count+0x40/0x40 [ 41.198587] ? lock_pin_lock+0x350/0x350 [ 41.202642] ? mark_held_locks+0x130/0x130 [ 41.206859] ? check_usage_forwards+0x3e0/0x3e0 [ 41.211514] ? __bfs+0x385/0x7a0 [ 41.214861] ? check_usage+0x1a9/0x790 [ 41.218729] ? lock_pin_lock+0x350/0x350 [ 41.222771] ? check_usage_forwards+0x3e0/0x3e0 [ 41.227422] ? __bfs+0x385/0x7a0 [ 41.230770] ? lockdep_on+0x50/0x50 [ 41.234380] ? lock_pin_lock+0x350/0x350 [ 41.238438] ? mark_held_locks+0x130/0x130 [ 41.242658] ? kasan_check_read+0x11/0x20 [ 41.246786] ? __lock_acquire+0x2881/0x4ec0 [ 41.251095] ? mark_held_locks+0x130/0x130 [ 41.255318] ? print_usage_bug+0xc0/0xc0 [ 41.259363] ? _raw_spin_unlock+0x2c/0x50 [ 41.263494] ? graph_lock+0x170/0x170 [ 41.267275] ? ext4_exit_mballoc+0xc0/0xc0 [ 41.271493] ? __lock_acquire+0x7ec/0x4ec0 [ 41.275712] ? find_held_lock+0x36/0x1c0 [ 41.279771] ? mark_held_locks+0x130/0x130 [ 41.283999] ? lock_downgrade+0x900/0x900 [ 41.288131] ? ext4_es_scan+0x960/0x960 [ 41.292092] ? do_raw_write_trylock+0x1c0/0x1c0 [ 41.296748] ? kasan_check_write+0x14/0x20 [ 41.300963] ? lock_acquire+0x1ed/0x520 [ 41.304919] ? integrity_inode_free+0x77/0x320 [ 41.309486] ? ext4_es_remove_extent+0x151/0x500 [ 41.314236] ? lock_release+0x970/0x970 [ 41.318198] ? kasan_check_write+0x14/0x20 [ 41.322415] ? do_raw_write_lock+0xbd/0x1e0 [ 41.326719] integrity_inode_free+0x12f/0x320 [ 41.331200] security_inode_free+0x19/0x90 [ 41.335415] __destroy_inode+0x328/0x820 [ 41.339459] ? generic_update_time+0x450/0x450 [ 41.344023] ? evict+0x5d8/0x980 [ 41.347368] ? lock_downgrade+0x900/0x900 [ 41.351498] ? __inode_wait_for_writeback+0x2cf/0x380 [ 41.356671] destroy_inode+0xda/0x200 [ 41.360468] ? __destroy_inode+0x820/0x820 [ 41.364703] ? kasan_check_write+0x14/0x20 [ 41.368923] ? do_raw_spin_lock+0xc1/0x230 [ 41.373140] evict+0x5e0/0x980 [ 41.376320] ? destroy_inode+0x200/0x200 [ 41.380366] ? iput+0x671/0xa90 [ 41.383628] ? lock_downgrade+0x900/0x900 [ 41.387759] ? kasan_check_read+0x11/0x20 [ 41.391887] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 41.396452] ? lock_downgrade+0x900/0x900 [ 41.400601] iput+0x679/0xa90 [ 41.403690] ? inode_add_lru+0x2a0/0x2a0 [ 41.407732] ? up_write+0x7b/0x220 [ 41.411251] ? up_read+0x110/0x110 [ 41.414773] ? up_read+0x110/0x110 [ 41.418299] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.423834] ? check_preemption_disabled+0x48/0x280 [ 41.428841] ext4_ioctl+0x236f/0x4210 [ 41.432624] ? is_bpf_text_address+0xac/0x170 [ 41.437114] ? ext4_ioctl_group_add+0x560/0x560 [ 41.441769] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 41.447558] ? kasan_check_read+0x11/0x20 [ 41.451702] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 41.456981] ? rcu_bh_qs+0xc0/0xc0 [ 41.460505] ? rcu_bh_qs+0xc0/0xc0 [ 41.464042] ? unwind_dump+0x190/0x190 [ 41.467917] ? is_bpf_text_address+0xd3/0x170 [ 41.472395] ? kernel_text_address+0x79/0xf0 [ 41.476784] ? __kernel_text_address+0xd/0x40 [ 41.481263] ? unwind_get_return_address+0x61/0xa0 [ 41.486176] ? __save_stack_trace+0x8d/0xf0 [ 41.490504] ? save_stack+0xa9/0xd0 [ 41.494111] ? save_stack+0x43/0xd0 [ 41.497719] ? __kasan_slab_free+0x102/0x150 [ 41.502104] ? kasan_slab_free+0xe/0x10 [ 41.506059] ? kmem_cache_free+0x83/0x290 [ 41.510203] ? putname+0xf2/0x130 [ 41.513639] ? do_sys_open+0x54d/0x700 [ 41.517508] ? __x64_sys_openat+0x9d/0x100 [ 41.521732] ? do_syscall_64+0x1b9/0x820 [ 41.525776] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.531125] ? trace_hardirqs_off+0xb8/0x310 [ 41.535535] ? kasan_check_read+0x11/0x20 [ 41.539669] ? do_raw_spin_unlock+0xa7/0x330 [ 41.544062] ? trace_hardirqs_on+0x310/0x310 [ 41.548458] ? kasan_check_write+0x14/0x20 [ 41.552674] ? trace_hardirqs_off+0xb8/0x310 [ 41.557064] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.562882] ? check_preemption_disabled+0x48/0x280 [ 41.567883] ? check_preemption_disabled+0x48/0x280 [ 41.572880] ? ext4_ioctl_group_add+0x560/0x560 [ 41.577533] do_vfs_ioctl+0x1de/0x1720 [ 41.581422] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 41.586680] ? ioctl_preallocate+0x300/0x300 [ 41.591071] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.596590] ? __fget_light+0x2e9/0x430 [ 41.600545] ? fget_raw+0x20/0x20 [ 41.603979] ? putname+0xf2/0x130 [ 41.607413] ? rcu_read_lock_sched_held+0x108/0x120 [ 41.612414] ? kmem_cache_free+0x24f/0x290 [ 41.616643] ? putname+0xf7/0x130 [ 41.620085] ? do_syscall_64+0x9a/0x820 [ 41.624040] ? do_syscall_64+0x9a/0x820 [ 41.628000] ? lockdep_hardirqs_on+0x421/0x5c0 [ 41.632567] ? security_file_ioctl+0x94/0xc0 [ 41.636956] ksys_ioctl+0xa9/0xd0 [ 41.640396] __x64_sys_ioctl+0x73/0xb0 [ 41.644266] do_syscall_64+0x1b9/0x820 [ 41.648138] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 41.653482] ? syscall_return_slowpath+0x5e0/0x5e0 [ 41.658393] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.663221] ? trace_hardirqs_on_caller+0x310/0x310 [ 41.668220] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 41.673219] ? prepare_exit_to_usermode+0x291/0x3b0 [ 41.678220] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.683050] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.688222] RIP: 0033:0x440009 [ 41.691396] 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 [ 41.710277] RSP: 002b:00007fff47963228 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 41.717973] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 41.725237] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 41.732488] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 41.739735] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 41.746984] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 41.754238] Modules linked in: [ 41.757606] ---[ end trace fdca91fee5bb97dd ]--- [ 41.762388] RIP: 0010:rb_erase+0x306/0x3710 [ 41.766709] 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 [ 41.785623] RSP: 0018:ffff8801d88e6918 EFLAGS: 00010202 [ 41.791003] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 41.798290] RDX: 1ffff1003b11cd2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 41.805569] RBP: ffff8801d88e7320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 41.812854] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801b72fe2b0 [ 41.820138] R13: dffffc0000000000 R14: ffff8801d88e72f8 R15: ffff8801d88e7438 [ 41.827393] FS: 0000000002238880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 41.835643] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.841539] CR2: 0000000020000080 CR3: 00000001d9710000 CR4: 00000000001406e0 [ 41.848836] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.856286] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.863580] Kernel panic - not syncing: Fatal exception [ 41.869853] Kernel Offset: disabled [ 41.873478] Rebooting in 86400 seconds..