[info] Using makefile-style concurrent boot in runlevel 2. [ 24.187881] audit: type=1800 audit(1539483204.806:21): pid=5186 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.214750] audit: type=1800 audit(1539483204.806:22): pid=5186 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 '10.128.0.115' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 48.166553] kasan: CONFIG_KASAN_INLINE enabled [ 48.171460] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 48.178888] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 48.185124] CPU: 0 PID: 5342 Comm: syz-executor397 Not tainted 4.19.0-rc7+ #282 [ 48.192887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.202416] RIP: 0010:rb_erase+0x306/0x3710 [ 48.207045] 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 [ 48.226348] RSP: 0018:ffff8801c3eb6918 EFLAGS: 00010202 [ 48.231714] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 48.238978] RDX: 1ffff100387d6d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 48.246457] RBP: ffff8801c3eb7320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 48.253725] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801b73581f0 [ 48.261335] R13: dffffc0000000000 R14: ffff8801c3eb72f8 R15: ffff8801c3eb7438 [ 48.268929] FS: 00000000012cf880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 48.277158] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.283193] CR2: 0000000020000700 CR3: 00000001d9361000 CR4: 00000000001406f0 [ 48.290467] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.297862] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.305126] Call Trace: [ 48.307721] ? lockdep_on+0x50/0x50 [ 48.311439] ? rb_insert_color+0x1460/0x1460 [ 48.315840] ? noop_count+0x40/0x40 [ 48.319459] ? lock_pin_lock+0x350/0x350 [ 48.323633] ? noop_count+0x40/0x40 [ 48.327255] ? kasan_check_read+0x11/0x20 [ 48.331397] ? noop_count+0x40/0x40 [ 48.335040] ? lock_pin_lock+0x350/0x350 [ 48.339097] ? mark_held_locks+0x130/0x130 [ 48.343326] ? check_usage_forwards+0x3e0/0x3e0 [ 48.348107] ? __bfs+0x385/0x7a0 [ 48.351600] ? noop_count+0x40/0x40 [ 48.355230] ? check_usage+0x1a9/0x790 [ 48.359110] ? lock_pin_lock+0x350/0x350 [ 48.363168] ? check_usage_forwards+0x3e0/0x3e0 [ 48.367960] ? __bfs+0x385/0x7a0 [ 48.371323] ? __lock_acquire+0x7ec/0x4ec0 [ 48.375556] ? lockdep_on+0x50/0x50 [ 48.379175] ? lock_pin_lock+0x350/0x350 [ 48.383364] ? mark_held_locks+0x130/0x130 [ 48.387596] ? kasan_check_read+0x11/0x20 [ 48.391896] ? __lock_acquire+0x2881/0x4ec0 [ 48.396223] ? mark_held_locks+0x130/0x130 [ 48.400452] ? print_usage_bug+0xc0/0xc0 [ 48.404686] ? _raw_spin_unlock+0x2c/0x50 [ 48.408833] ? graph_lock+0x170/0x170 [ 48.412860] ? ext4_exit_mballoc+0xc0/0xc0 [ 48.417282] ? __lock_acquire+0x7ec/0x4ec0 [ 48.421691] ? find_held_lock+0x36/0x1c0 [ 48.425749] ? mark_held_locks+0x130/0x130 [ 48.429978] ? lock_downgrade+0x900/0x900 [ 48.434275] ? ext4_es_scan+0x960/0x960 [ 48.438250] ? do_raw_write_trylock+0x1c0/0x1c0 [ 48.443238] ? kasan_check_write+0x14/0x20 [ 48.447562] ? lock_acquire+0x1ed/0x520 [ 48.451872] ? integrity_inode_free+0x77/0x320 [ 48.456455] ? ext4_es_remove_extent+0x151/0x500 [ 48.461203] ? lock_release+0x970/0x970 [ 48.465174] ? kasan_check_write+0x14/0x20 [ 48.469400] ? do_raw_write_lock+0xbd/0x1b0 [ 48.473719] integrity_inode_free+0x12f/0x320 [ 48.478212] security_inode_free+0x19/0x90 [ 48.482442] __destroy_inode+0x328/0x820 [ 48.486496] ? generic_update_time+0x450/0x450 [ 48.491073] ? evict+0x5d8/0x980 [ 48.494433] ? lock_downgrade+0x900/0x900 [ 48.498578] ? __inode_wait_for_writeback+0x2cf/0x380 [ 48.503770] destroy_inode+0xda/0x200 [ 48.507568] ? __destroy_inode+0x820/0x820 [ 48.511978] ? kasan_check_write+0x14/0x20 [ 48.516234] ? do_raw_spin_lock+0xc1/0x200 [ 48.520594] evict+0x5e0/0x980 [ 48.523921] ? destroy_inode+0x200/0x200 [ 48.527986] ? iput+0x671/0xa90 [ 48.531286] ? lock_downgrade+0x900/0x900 [ 48.535620] ? kasan_check_read+0x11/0x20 [ 48.539769] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 48.544481] ? lock_downgrade+0x900/0x900 [ 48.548629] iput+0x679/0xa90 [ 48.551730] ? inode_add_lru+0x2a0/0x2a0 [ 48.556278] ? up_write+0x7b/0x220 [ 48.559818] ? up_read+0x110/0x110 [ 48.563353] ? up_read+0x110/0x110 [ 48.566890] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.572431] ? check_preemption_disabled+0x48/0x200 [ 48.577720] ext4_ioctl+0x236f/0x4210 [ 48.581530] ? ext4_ioctl_group_add+0x560/0x560 [ 48.586203] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 48.592503] ? kasan_check_read+0x11/0x20 [ 48.596654] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 48.601927] ? rcu_bh_qs+0xc0/0xc0 [ 48.605603] ? rcu_bh_qs+0xc0/0xc0 [ 48.609270] ? unwind_dump+0x190/0x190 [ 48.613162] ? is_bpf_text_address+0xd3/0x170 [ 48.617798] ? kernel_text_address+0x79/0xf0 [ 48.622332] ? __kernel_text_address+0xd/0x40 [ 48.626970] ? unwind_get_return_address+0x61/0xa0 [ 48.631903] ? __save_stack_trace+0x8d/0xf0 [ 48.636421] ? save_stack+0xa9/0xd0 [ 48.640054] ? save_stack+0x43/0xd0 [ 48.643678] ? __kasan_slab_free+0x102/0x150 [ 48.648228] ? kasan_slab_free+0xe/0x10 [ 48.652542] ? kmem_cache_free+0x83/0x290 [ 48.657062] ? putname+0xf2/0x130 [ 48.661058] ? do_sys_open+0x54d/0x700 [ 48.665070] ? __x64_sys_open+0x7e/0xc0 [ 48.669056] ? do_syscall_64+0x1b9/0x820 [ 48.673242] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 48.678730] ? trace_hardirqs_off+0xb8/0x310 [ 48.683143] ? kasan_check_read+0x11/0x20 [ 48.687403] ? do_raw_spin_unlock+0xa7/0x2f0 [ 48.691940] ? trace_hardirqs_on+0x310/0x310 [ 48.696347] ? kasan_check_write+0x14/0x20 [ 48.700577] ? trace_hardirqs_off+0xb8/0x310 [ 48.705123] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.710661] ? check_preemption_disabled+0x48/0x200 [ 48.715786] ? ext4_ioctl_group_add+0x560/0x560 [ 48.720759] do_vfs_ioctl+0x1de/0x1720 [ 48.724651] ? rcu_lockdep_current_cpu_online+0x1f0/0x2d0 [ 48.730298] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 48.735704] ? ioctl_preallocate+0x300/0x300 [ 48.740338] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.746036] ? __fget_light+0x2e9/0x430 [ 48.750359] ? fget_raw+0x20/0x20 [ 48.753816] ? rcu_read_lock_sched_held+0x108/0x120 [ 48.758833] ? kmem_cache_free+0x24f/0x290 [ 48.763363] ? putname+0xf7/0x130 [ 48.766817] ? do_syscall_64+0x9a/0x820 [ 48.770902] ? do_syscall_64+0x9a/0x820 [ 48.775034] ? lockdep_hardirqs_on+0x421/0x5c0 [ 48.779843] ? security_file_ioctl+0x94/0xc0 [ 48.784256] ksys_ioctl+0xa9/0xd0 [ 48.787833] __x64_sys_ioctl+0x73/0xb0 [ 48.791735] do_syscall_64+0x1b9/0x820 [ 48.795620] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 48.801131] ? syscall_return_slowpath+0x5e0/0x5e0 [ 48.806184] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.811270] ? trace_hardirqs_on_caller+0x310/0x310 [ 48.816473] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 48.821911] ? prepare_exit_to_usermode+0x291/0x3b0 [ 48.827065] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.831997] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 48.837312] RIP: 0033:0x440029 [ 48.840509] 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 [ 48.859665] RSP: 002b:00007ffebe82f908 EFLAGS: 00000217 ORIG_RAX: 0000000000000010 [ 48.867536] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440029 [ 48.874957] RDX: 0000000000440029 RSI: 0000000000006611 RDI: 0000000000000004 [ 48.882224] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 48.889691] R10: 0000000000000000 R11: 0000000000000217 R12: 00000000004018b0 [ 48.896961] R13: 0000000000401940 R14: 0000000000000000 R15: 0000000000000000 [ 48.904364] Modules linked in: [ 48.907711] ---[ end trace 7f17c5e261308c4f ]--- [ 48.912571] RIP: 0010:rb_erase+0x306/0x3710 [ 48.916894] 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 [ 48.936298] RSP: 0018:ffff8801c3eb6918 EFLAGS: 00010202 [ 48.942099] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 48.949674] RDX: 1ffff100387d6d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 48.957131] RBP: ffff8801c3eb7320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 48.964460] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801b73581f0 [ 48.971918] R13: dffffc0000000000 R14: ffff8801c3eb72f8 R15: ffff8801c3eb7438 [ 48.979684] FS: 00000000012cf880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 48.987921] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.993970] CR2: 0000000020000700 CR3: 00000001d9361000 CR4: 00000000001406f0 [ 49.001297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.008891] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.016176] Kernel panic - not syncing: Fatal exception [ 49.022754] Kernel Offset: disabled [ 49.026387] Rebooting in 86400 seconds..