[info] Using makefile-style concurrent boot in runlevel 2. [ 23.715235] audit: type=1800 audit(1539479834.126:21): pid=5169 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 23.743372] audit: type=1800 audit(1539479834.126:22): pid=5169 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 '10.128.0.76' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 50.490724] kasan: CONFIG_KASAN_INLINE enabled [ 50.495508] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 50.503088] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 50.509309] CPU: 0 PID: 5327 Comm: syz-executor024 Not tainted 4.19.0-rc7+ #282 [ 50.516739] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.526211] RIP: 0010:rb_erase+0x306/0x3710 [ 50.530523] 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 [ 50.549421] RSP: 0018:ffff8801bd91e918 EFLAGS: 00010202 [ 50.554786] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 50.562038] RDX: 1ffff10037b23d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 50.569299] RBP: ffff8801bd91f320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 50.576549] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801b77781f0 [ 50.583799] R13: dffffc0000000000 R14: ffff8801bd91f2f8 R15: ffff8801bd91f438 [ 50.591052] FS: 000000000174c880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 50.599264] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.605128] CR2: 0000000020000180 CR3: 00000001d96b0000 CR4: 00000000001406f0 [ 50.612393] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.619649] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.627027] Call Trace: [ 50.629644] ? lockdep_on+0x50/0x50 [ 50.633254] ? rb_insert_color+0x1460/0x1460 [ 50.637645] ? noop_count+0x40/0x40 [ 50.641275] ? lock_pin_lock+0x350/0x350 [ 50.645498] ? noop_count+0x40/0x40 [ 50.649112] ? kasan_check_read+0x11/0x20 [ 50.653246] ? noop_count+0x40/0x40 [ 50.656855] ? noop_count+0x40/0x40 [ 50.660466] ? lock_pin_lock+0x350/0x350 [ 50.664511] ? mark_held_locks+0x130/0x130 [ 50.668737] ? check_usage_forwards+0x3e0/0x3e0 [ 50.673390] ? __bfs+0x385/0x7a0 [ 50.676747] ? noop_count+0x40/0x40 [ 50.680541] ? check_usage+0x1a9/0x790 [ 50.684419] ? lock_pin_lock+0x350/0x350 [ 50.688468] ? check_usage_forwards+0x3e0/0x3e0 [ 50.693118] ? __bfs+0x385/0x7a0 [ 50.696472] ? __lock_acquire+0x7ec/0x4ec0 [ 50.700689] ? lockdep_on+0x50/0x50 [ 50.704296] ? lock_pin_lock+0x350/0x350 [ 50.708349] ? mark_held_locks+0x130/0x130 [ 50.712585] ? kasan_check_read+0x11/0x20 [ 50.716743] ? __lock_acquire+0x2881/0x4ec0 [ 50.721054] ? mark_held_locks+0x130/0x130 [ 50.725299] ? print_usage_bug+0xc0/0xc0 [ 50.729487] ? _raw_spin_unlock+0x2c/0x50 [ 50.733628] ? graph_lock+0x170/0x170 [ 50.737426] ? ext4_exit_mballoc+0xc0/0xc0 [ 50.741642] ? __lock_acquire+0x7ec/0x4ec0 [ 50.745858] ? find_held_lock+0x36/0x1c0 [ 50.749906] ? mark_held_locks+0x130/0x130 [ 50.754121] ? lock_downgrade+0x900/0x900 [ 50.758255] ? ext4_es_scan+0x960/0x960 [ 50.762218] ? do_raw_write_trylock+0x1c0/0x1c0 [ 50.766880] ? kasan_check_write+0x14/0x20 [ 50.771101] ? lock_acquire+0x1ed/0x520 [ 50.775057] ? integrity_inode_free+0x77/0x320 [ 50.779868] ? ext4_es_remove_extent+0x151/0x500 [ 50.784606] ? lock_release+0x970/0x970 [ 50.788661] ? kasan_check_write+0x14/0x20 [ 50.793019] ? do_raw_write_lock+0xbd/0x1b0 [ 50.797425] integrity_inode_free+0x12f/0x320 [ 50.801908] security_inode_free+0x19/0x90 [ 50.806125] __destroy_inode+0x328/0x820 [ 50.810170] ? generic_update_time+0x450/0x450 [ 50.814789] ? evict+0x5d8/0x980 [ 50.818211] ? lock_downgrade+0x900/0x900 [ 50.822349] ? __inode_wait_for_writeback+0x2cf/0x380 [ 50.827523] destroy_inode+0xda/0x200 [ 50.831311] ? __destroy_inode+0x820/0x820 [ 50.835528] ? kasan_check_write+0x14/0x20 [ 50.839760] ? do_raw_spin_lock+0xc1/0x200 [ 50.843980] evict+0x5e0/0x980 [ 50.847287] ? destroy_inode+0x200/0x200 [ 50.851489] ? iput+0x671/0xa90 [ 50.854788] ? lock_downgrade+0x900/0x900 [ 50.858917] ? kasan_check_read+0x11/0x20 [ 50.863046] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 50.867687] ? lock_downgrade+0x900/0x900 [ 50.871828] iput+0x679/0xa90 [ 50.874931] ? inode_add_lru+0x2a0/0x2a0 [ 50.879150] ? up_write+0x7b/0x220 [ 50.882685] ? up_read+0x110/0x110 [ 50.886217] ? up_read+0x110/0x110 [ 50.889752] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.895283] ? check_preemption_disabled+0x48/0x200 [ 50.900290] ext4_ioctl+0x236f/0x4210 [ 50.904186] ? is_bpf_text_address+0xac/0x170 [ 50.908664] ? ext4_ioctl_group_add+0x560/0x560 [ 50.913329] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 50.919224] ? kasan_check_read+0x11/0x20 [ 50.923381] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 50.928642] ? rcu_bh_qs+0xc0/0xc0 [ 50.932169] ? rcu_bh_qs+0xc0/0xc0 [ 50.935701] ? unwind_dump+0x190/0x190 [ 50.939586] ? is_bpf_text_address+0xd3/0x170 [ 50.944190] ? kernel_text_address+0x79/0xf0 [ 50.948787] ? __kernel_text_address+0xd/0x40 [ 50.953273] ? unwind_get_return_address+0x61/0xa0 [ 50.958193] ? __save_stack_trace+0x8d/0xf0 [ 50.962563] ? save_stack+0xa9/0xd0 [ 50.966178] ? save_stack+0x43/0xd0 [ 50.969907] ? __kasan_slab_free+0x102/0x150 [ 50.974359] ? kasan_slab_free+0xe/0x10 [ 50.978421] ? kmem_cache_free+0x83/0x290 [ 50.982559] ? putname+0xf2/0x130 [ 50.986155] ? do_sys_open+0x54d/0x700 [ 50.990168] ? __x64_sys_openat+0x9d/0x100 [ 50.994403] ? do_syscall_64+0x1b9/0x820 [ 50.998450] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.004034] ? trace_hardirqs_off+0xb8/0x310 [ 51.008435] ? kasan_check_read+0x11/0x20 [ 51.012568] ? do_raw_spin_unlock+0xa7/0x2f0 [ 51.016966] ? trace_hardirqs_on+0x310/0x310 [ 51.021362] ? kasan_check_write+0x14/0x20 [ 51.025591] ? trace_hardirqs_off+0xb8/0x310 [ 51.029991] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.035549] ? check_preemption_disabled+0x48/0x200 [ 51.040570] ? check_preemption_disabled+0x48/0x200 [ 51.045577] ? ext4_ioctl_group_add+0x560/0x560 [ 51.050234] do_vfs_ioctl+0x1de/0x1720 [ 51.054128] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 51.059397] ? ioctl_preallocate+0x300/0x300 [ 51.063802] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.069329] ? __fget_light+0x2e9/0x430 [ 51.073289] ? fget_raw+0x20/0x20 [ 51.076726] ? putname+0xf2/0x130 [ 51.080165] ? rcu_read_lock_sched_held+0x108/0x120 [ 51.085169] ? kmem_cache_free+0x24f/0x290 [ 51.089391] ? putname+0xf7/0x130 [ 51.092829] ? do_syscall_64+0x9a/0x820 [ 51.096789] ? do_syscall_64+0x9a/0x820 [ 51.100877] ? lockdep_hardirqs_on+0x421/0x5c0 [ 51.105504] ? security_file_ioctl+0x94/0xc0 [ 51.109987] ksys_ioctl+0xa9/0xd0 [ 51.113434] __x64_sys_ioctl+0x73/0xb0 [ 51.117316] do_syscall_64+0x1b9/0x820 [ 51.121201] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 51.126551] ? syscall_return_slowpath+0x5e0/0x5e0 [ 51.131461] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.136306] ? trace_hardirqs_on_caller+0x310/0x310 [ 51.141306] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 51.146318] ? prepare_exit_to_usermode+0x291/0x3b0 [ 51.151326] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.156157] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.161402] RIP: 0033:0x440089 [ 51.164597] 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 [ 51.183489] RSP: 002b:00007ffe6fbe9968 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 51.191184] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440089 [ 51.198601] RDX: 0000000000440089 RSI: 0000000000006611 RDI: 0000000000000003 [ 51.205931] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 51.213194] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401910 [ 51.220549] R13: 00000000004019a0 R14: 0000000000000000 R15: 0000000000000000 [ 51.227807] Modules linked in: [ 51.231194] ---[ end trace 0b50b83c0b4124c5 ]--- [ 51.235976] RIP: 0010:rb_erase+0x306/0x3710 [ 51.240284] 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 [ 51.259356] RSP: 0018:ffff8801bd91e918 EFLAGS: 00010202 [ 51.264725] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 51.272041] RDX: 1ffff10037b23d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 51.279472] RBP: ffff8801bd91f320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 51.286747] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801b77781f0 [ 51.294045] R13: dffffc0000000000 R14: ffff8801bd91f2f8 R15: ffff8801bd91f438 [ 51.301301] FS: 000000000174c880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 51.309567] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.315465] CR2: 0000000020000180 CR3: 00000001d96b0000 CR4: 00000000001406f0 [ 51.322740] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.330032] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.337302] Kernel panic - not syncing: Fatal exception [ 51.344174] Kernel Offset: disabled [ 51.347798] Rebooting in 86400 seconds..