[info] Using makefile-style concurrent boot in runlevel 2. [ 24.825015] audit: type=1800 audit(1539787553.854:21): pid=5212 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.854278] audit: type=1800 audit(1539787553.854:22): pid=5212 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 '10.128.0.94' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 47.645077] kasan: CONFIG_KASAN_INLINE enabled [ 47.649919] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 47.657297] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 47.663512] CPU: 1 PID: 5368 Comm: syz-executor320 Not tainted 4.19.0-rc7+ #144 [ 47.671007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.680425] RIP: 0010:rb_erase+0x306/0x3710 [ 47.684738] 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 [ 47.703624] RSP: 0018:ffff8801d896e918 EFLAGS: 00010202 [ 47.708977] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 47.716226] RDX: 1ffff1003b12dd2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 47.723475] RBP: ffff8801d896f320 R08: dffffc0000000000 R09: fffffbfff12d69a0 [ 47.730723] R10: fffffbfff12d69a0 R11: ffffffff896b4d03 R12: ffff8801b76d2970 [ 47.737974] R13: dffffc0000000000 R14: ffff8801d896f2f8 R15: ffff8801d896f438 [ 47.745240] FS: 0000000000cd4880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 47.753739] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.759599] CR2: 0000000020000080 CR3: 00000001bb24b000 CR4: 00000000001406e0 [ 47.766851] Call Trace: [ 47.769437] ? lockdep_on+0x50/0x50 [ 47.773060] ? rb_insert_color+0x1460/0x1460 [ 47.777448] ? lock_downgrade+0x900/0x900 [ 47.781590] ? noop_count+0x40/0x40 [ 47.785222] ? lock_pin_lock+0x350/0x350 [ 47.789282] ? rcu_bh_qs+0xc0/0xc0 [ 47.792818] ? unwind_dump+0x190/0x190 [ 47.796723] ? kasan_check_read+0x11/0x20 [ 47.800857] ? noop_count+0x40/0x40 [ 47.804490] ? lock_pin_lock+0x350/0x350 [ 47.808548] ? mark_held_locks+0x130/0x130 [ 47.812787] ? check_usage_forwards+0x3e0/0x3e0 [ 47.817437] ? __bfs+0x385/0x7a0 [ 47.820791] ? check_usage+0x1a9/0x790 [ 47.824659] ? lock_pin_lock+0x350/0x350 [ 47.828740] ? check_usage_forwards+0x3e0/0x3e0 [ 47.833401] ? __bfs+0x385/0x7a0 [ 47.836762] ? modules_open+0xa0/0xa0 [ 47.840562] ? lockdep_on+0x50/0x50 [ 47.844171] ? lock_pin_lock+0x350/0x350 [ 47.848222] ? mark_held_locks+0x130/0x130 [ 47.852519] ? kasan_check_read+0x11/0x20 [ 47.856661] ? __lock_acquire+0x2881/0x4ec0 [ 47.860967] ? mark_held_locks+0x130/0x130 [ 47.865187] ? print_usage_bug+0xc0/0xc0 [ 47.869284] ? _raw_spin_unlock+0x2c/0x50 [ 47.873425] ? graph_lock+0x170/0x170 [ 47.877211] ? ext4_exit_mballoc+0xc0/0xc0 [ 47.881430] ? __lock_acquire+0x7ec/0x4ec0 [ 47.885646] ? find_held_lock+0x36/0x1c0 [ 47.889762] ? mark_held_locks+0x130/0x130 [ 47.894000] ? lock_downgrade+0x900/0x900 [ 47.898174] ? ext4_es_scan+0x960/0x960 [ 47.902134] ? lock_release+0x970/0x970 [ 47.906092] ? do_raw_write_trylock+0x1c0/0x1c0 [ 47.910745] ? kasan_check_write+0x14/0x20 [ 47.914967] ? lock_acquire+0x1ed/0x520 [ 47.918924] ? integrity_inode_free+0x77/0x320 [ 47.923487] ? ext4_es_remove_extent+0x151/0x500 [ 47.928224] ? lock_release+0x970/0x970 [ 47.932359] ? kasan_check_write+0x14/0x20 [ 47.936585] ? do_raw_write_lock+0xbd/0x1b0 [ 47.940887] integrity_inode_free+0x12f/0x320 [ 47.945368] security_inode_free+0x19/0x90 [ 47.949587] __destroy_inode+0x328/0x820 [ 47.953630] ? generic_update_time+0x450/0x450 [ 47.958193] ? evict+0x5d8/0x980 [ 47.961540] ? lock_downgrade+0x900/0x900 [ 47.965671] ? __inode_wait_for_writeback+0x2cf/0x380 [ 47.970843] destroy_inode+0xda/0x200 [ 47.974625] ? __destroy_inode+0x820/0x820 [ 47.978850] ? kasan_check_write+0x14/0x20 [ 47.983150] ? do_raw_spin_lock+0xc1/0x200 [ 47.987378] evict+0x5e0/0x980 [ 47.990597] ? destroy_inode+0x200/0x200 [ 47.994649] ? iput+0x671/0xa90 [ 47.997910] ? lock_downgrade+0x900/0x900 [ 48.002047] ? kasan_check_read+0x11/0x20 [ 48.006178] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 48.010909] ? lock_downgrade+0x900/0x900 [ 48.015049] iput+0x679/0xa90 [ 48.018137] ? inode_add_lru+0x2a0/0x2a0 [ 48.022190] ? up_write+0x7b/0x220 [ 48.025705] ? up_read+0x110/0x110 [ 48.029223] ? up_read+0x110/0x110 [ 48.032762] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.038285] ? check_preemption_disabled+0x48/0x200 [ 48.043285] ext4_ioctl+0x236f/0x4210 [ 48.047070] ? is_bpf_text_address+0xac/0x170 [ 48.051545] ? ext4_ioctl_group_add+0x560/0x560 [ 48.056201] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 48.061980] ? kasan_check_read+0x11/0x20 [ 48.066120] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 48.071420] ? rcu_bh_qs+0xc0/0xc0 [ 48.074942] ? rcu_bh_qs+0xc0/0xc0 [ 48.078469] ? unwind_dump+0x190/0x190 [ 48.082356] ? is_bpf_text_address+0xd3/0x170 [ 48.086835] ? kernel_text_address+0x79/0xf0 [ 48.091236] ? __kernel_text_address+0xd/0x40 [ 48.095710] ? unwind_get_return_address+0x61/0xa0 [ 48.100623] ? __save_stack_trace+0x8d/0xf0 [ 48.104928] ? save_stack+0xa9/0xd0 [ 48.108533] ? save_stack+0x43/0xd0 [ 48.112138] ? __kasan_slab_free+0x102/0x150 [ 48.116524] ? kasan_slab_free+0xe/0x10 [ 48.120481] ? kmem_cache_free+0x83/0x290 [ 48.124622] ? putname+0xf2/0x130 [ 48.128054] ? do_sys_open+0x54d/0x700 [ 48.131930] ? __x64_sys_openat+0x9d/0x100 [ 48.136149] ? do_syscall_64+0x1b9/0x820 [ 48.140192] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 48.145555] ? trace_hardirqs_off+0xb8/0x310 [ 48.149950] ? kasan_check_read+0x11/0x20 [ 48.154087] ? do_raw_spin_unlock+0xa7/0x2f0 [ 48.158553] ? trace_hardirqs_on+0x310/0x310 [ 48.162957] ? kasan_check_write+0x14/0x20 [ 48.167174] ? trace_hardirqs_off+0xb8/0x310 [ 48.171568] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.177205] ? check_preemption_disabled+0x48/0x200 [ 48.182264] ? check_preemption_disabled+0x48/0x200 [ 48.187270] ? ext4_ioctl_group_add+0x560/0x560 [ 48.191925] do_vfs_ioctl+0x1de/0x1720 [ 48.195808] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 48.201066] ? ioctl_preallocate+0x300/0x300 [ 48.205454] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.210974] ? __fget_light+0x2e9/0x430 [ 48.214931] ? fget_raw+0x20/0x20 [ 48.218362] ? putname+0xf2/0x130 [ 48.221801] ? rcu_read_lock_sched_held+0x108/0x120 [ 48.226804] ? kmem_cache_free+0x24f/0x290 [ 48.231033] ? putname+0xf7/0x130 [ 48.234480] ? do_syscall_64+0x9a/0x820 [ 48.238465] ? do_syscall_64+0x9a/0x820 [ 48.242425] ? lockdep_hardirqs_on+0x421/0x5c0 [ 48.247014] ? security_file_ioctl+0x94/0xc0 [ 48.251425] ksys_ioctl+0xa9/0xd0 [ 48.254868] __x64_sys_ioctl+0x73/0xb0 [ 48.258737] do_syscall_64+0x1b9/0x820 [ 48.262732] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 48.268087] ? syscall_return_slowpath+0x5e0/0x5e0 [ 48.273041] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.277874] ? trace_hardirqs_on_caller+0x310/0x310 [ 48.282918] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 48.287929] ? prepare_exit_to_usermode+0x291/0x3b0 [ 48.292932] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.297766] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 48.302952] RIP: 0033:0x440009 [ 48.306131] 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 [ 48.325666] RSP: 002b:00007fffd84630f8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 48.333426] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 48.340680] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 48.347936] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 48.355187] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 48.362451] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 48.369721] Modules linked in: [ 48.373056] ---[ end trace 1205e3782a74d23f ]--- [ 48.377819] RIP: 0010:rb_erase+0x306/0x3710 [ 48.382208] 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 [ 48.401116] RSP: 0018:ffff8801d896e918 EFLAGS: 00010202 [ 48.406560] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 48.413938] RDX: 1ffff1003b12dd2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 48.421226] RBP: ffff8801d896f320 R08: dffffc0000000000 R09: fffffbfff12d69a0 [ 48.428502] R10: fffffbfff12d69a0 R11: ffffffff896b4d03 R12: ffff8801b76d2970 [ 48.435758] R13: dffffc0000000000 R14: ffff8801d896f2f8 R15: ffff8801d896f438 [ 48.443045] FS: 0000000000cd4880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 48.451388] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.457258] CR2: 0000000020000080 CR3: 00000001bb24b000 CR4: 00000000001406e0 [ 48.464557] Kernel panic - not syncing: Fatal exception [ 48.470742] Kernel Offset: disabled [ 48.474433] Rebooting in 86400 seconds..