[info] Using makefile-style concurrent boot in runlevel 2. [ 24.153386] audit: type=1800 audit(1540506396.398:21): pid=5207 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. [ 25.133940] sshd (5274) used greatest stack depth: 15488 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.56' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 43.778764] kasan: CONFIG_KASAN_INLINE enabled [ 43.783490] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 43.790851] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 43.797081] CPU: 1 PID: 5364 Comm: syz-executor321 Not tainted 4.19.0+ #276 [ 43.804159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.813517] RIP: 0010:rb_erase+0x306/0x3710 [ 43.817832] 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 [ 43.836727] RSP: 0018:ffff8801d8b8e918 EFLAGS: 00010202 [ 43.842084] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 43.849345] RDX: 1ffff1003b171d2b RSI: ffffffff8af92020 RDI: 0000000000000008 [ 43.856613] RBP: ffff8801d8b8f320 R08: dffffc0000000000 R09: ffffed003b171e53 [ 43.863879] R10: ffffed003b171e53 R11: 0000000000000003 R12: ffff8801b730c970 [ 43.871137] R13: dffffc0000000000 R14: ffff8801d8b8f2f8 R15: ffff8801d8b8f438 [ 43.878397] FS: 0000000000704880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 43.886612] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.892507] CR2: 0000000020000080 CR3: 00000001d89e4000 CR4: 00000000001406e0 [ 43.899775] Call Trace: [ 43.902355] ? modules_open+0xa0/0xa0 [ 43.906152] ? rb_insert_color+0x1460/0x1460 [ 43.910553] ? noop_count+0x40/0x40 [ 43.914180] ? print_bfs_bug+0x80/0x80 [ 43.918053] ? mark_held_locks+0x130/0x130 [ 43.922389] ? kernel_text_address+0x79/0xf0 [ 43.926785] ? noop_count+0x40/0x40 [ 43.930399] ? print_bfs_bug+0x80/0x80 [ 43.934282] ? noop_count+0x40/0x40 [ 43.937902] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 43.943436] ? check_usage_forwards+0x3d0/0x3d0 [ 43.948097] ? __bfs+0x321/0x780 [ 43.951453] ? check_usage+0x1aa/0x790 [ 43.955326] ? print_bfs_bug+0x80/0x80 [ 43.959249] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 43.964176] ? check_usage_forwards+0x3d0/0x3d0 [ 43.968838] ? kasan_check_read+0x11/0x20 [ 43.972978] ? graph_lock+0x9c/0x270 [ 43.976714] ? __bfs+0x321/0x780 [ 43.980068] ? trace_event_raw_event_lock_acquire+0x440/0x440 [ 43.985981] ? lockdep_on+0x50/0x50 [ 43.989605] ? print_bfs_bug+0x80/0x80 [ 43.993478] ? kasan_check_read+0x11/0x20 [ 43.997607] ? graph_lock+0x9c/0x270 [ 44.001304] ? trace_event_raw_event_lock_acquire+0x440/0x440 [ 44.007228] ? mark_held_locks+0x130/0x130 [ 44.011452] ? kasan_check_read+0x11/0x20 [ 44.015583] ? __lock_acquire+0x2aff/0x4c20 [ 44.019899] ? mark_held_locks+0x130/0x130 [ 44.024122] ? print_usage_bug+0xc0/0xc0 [ 44.028170] ? print_usage_bug+0xc0/0xc0 [ 44.032218] ? __lock_acquire+0x62f/0x4c20 [ 44.036445] ? zap_class+0x640/0x640 [ 44.040188] ? print_usage_bug+0xc0/0xc0 [ 44.044241] ? __lock_acquire+0x62f/0x4c20 [ 44.048467] ? mark_held_locks+0x130/0x130 [ 44.052688] ? lock_downgrade+0x900/0x900 [ 44.056831] ? ext4_es_scan+0x960/0x960 [ 44.060801] ? kasan_check_read+0x11/0x20 [ 44.064977] ? do_raw_write_lock+0x14f/0x310 [ 44.069378] ? do_raw_write_trylock+0x270/0x270 [ 44.074045] ? lock_acquire+0x1ed/0x520 [ 44.078020] ? integrity_inode_free+0x77/0x320 [ 44.082594] ? ext4_es_remove_extent+0x151/0x500 [ 44.087338] ? kasan_check_read+0x11/0x20 [ 44.091479] ? do_raw_write_lock+0x14f/0x310 [ 44.095893] ? do_raw_read_unlock+0x70/0x70 [ 44.100304] ? zap_class+0x640/0x640 [ 44.104019] integrity_inode_free+0x12f/0x320 [ 44.108511] security_inode_free+0x19/0x90 [ 44.112739] __destroy_inode+0x328/0x820 [ 44.116792] ? clear_nlink+0xe0/0xe0 [ 44.120499] ? evict+0x5d8/0x980 [ 44.123859] ? lock_downgrade+0x900/0x900 [ 44.128014] ? __inode_wait_for_writeback+0x2cf/0x380 [ 44.133198] destroy_inode+0xda/0x200 [ 44.136990] ? __destroy_inode+0x820/0x820 [ 44.141220] evict+0x5e0/0x980 [ 44.144402] ? destroy_inode+0x200/0x200 [ 44.148466] ? iput+0x671/0xa90 [ 44.151736] ? lock_downgrade+0x900/0x900 [ 44.155888] ? kasan_check_read+0x11/0x20 [ 44.160034] ? do_raw_spin_trylock+0x270/0x270 [ 44.164610] ? lock_downgrade+0x900/0x900 [ 44.168750] iput+0x679/0xa90 [ 44.171843] ? inode_add_lru+0x2a0/0x2a0 [ 44.175899] ? up_write+0x7b/0x220 [ 44.179423] ? down_write_nested+0x130/0x130 [ 44.183876] ? down_write_nested+0x130/0x130 [ 44.188275] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 44.193801] ? check_preemption_disabled+0x48/0x280 [ 44.198811] ext4_ioctl+0x236f/0x4210 [ 44.202604] ? is_bpf_text_address+0xac/0x170 [ 44.207097] ? ext4_ioctl_group_add+0x560/0x560 [ 44.211760] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 44.216676] ? kasan_check_read+0x11/0x20 [ 44.220854] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 44.226131] ? rcu_softirq_qs+0x20/0x20 [ 44.230094] ? rcu_softirq_qs+0x20/0x20 [ 44.234059] ? unwind_dump+0x190/0x190 [ 44.237940] ? is_bpf_text_address+0xd3/0x170 [ 44.242422] ? kernel_text_address+0x79/0xf0 [ 44.246819] ? __kernel_text_address+0xd/0x40 [ 44.251300] ? unwind_get_return_address+0x61/0xa0 [ 44.256215] ? __save_stack_trace+0x8d/0xf0 [ 44.260528] ? save_stack+0xa9/0xd0 [ 44.264201] ? save_stack+0x43/0xd0 [ 44.267815] ? __kasan_slab_free+0x102/0x150 [ 44.272206] ? kasan_slab_free+0xe/0x10 [ 44.276164] ? kmem_cache_free+0x83/0x290 [ 44.280433] ? putname+0xf2/0x130 [ 44.283884] ? do_sys_open+0x54d/0x700 [ 44.287759] ? __x64_sys_openat+0x9d/0x100 [ 44.291981] ? do_syscall_64+0x1b9/0x820 [ 44.296031] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 44.301401] ? trace_hardirqs_off+0xb8/0x310 [ 44.305804] ? kasan_check_read+0x11/0x20 [ 44.309944] ? do_raw_spin_unlock+0xa7/0x330 [ 44.314339] ? trace_hardirqs_on+0x310/0x310 [ 44.318736] ? trace_hardirqs_off+0xb8/0x310 [ 44.323131] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 44.328659] ? ext4_ioctl_group_add+0x560/0x560 [ 44.333320] do_vfs_ioctl+0x1de/0x1720 [ 44.337198] ? rcu_lockdep_current_cpu_online+0x1a4/0x210 [ 44.342732] ? ioctl_preallocate+0x300/0x300 [ 44.347134] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 44.352699] ? __fget_light+0x2e9/0x430 [ 44.356668] ? fget_raw+0x20/0x20 [ 44.360105] ? putname+0xf2/0x130 [ 44.363546] ? rcu_read_lock_sched_held+0x14f/0x180 [ 44.368550] ? kmem_cache_free+0x24f/0x290 [ 44.372842] ? putname+0xf7/0x130 [ 44.376357] ? do_syscall_64+0x9a/0x820 [ 44.380321] ? do_syscall_64+0x9a/0x820 [ 44.384286] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 44.388858] ? security_file_ioctl+0x94/0xc0 [ 44.393271] ksys_ioctl+0xa9/0xd0 [ 44.396716] __x64_sys_ioctl+0x73/0xb0 [ 44.400597] do_syscall_64+0x1b9/0x820 [ 44.404477] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 44.409834] ? syscall_return_slowpath+0x5e0/0x5e0 [ 44.414854] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 44.419693] ? trace_hardirqs_on_caller+0x310/0x310 [ 44.424703] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 44.429710] ? prepare_exit_to_usermode+0x291/0x3b0 [ 44.434718] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 44.439553] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 44.444733] RIP: 0033:0x440009 [ 44.448060] 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 [ 44.467005] RSP: 002b:00007ffda15ecd78 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 44.474715] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 44.481988] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 44.489249] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 44.496513] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 44.503782] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 44.511057] Modules linked in: [ 44.514408] ---[ end trace f732ef5b419800b2 ]--- [ 44.519176] RIP: 0010:rb_erase+0x306/0x3710 [ 44.523545] 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 [ 44.542504] RSP: 0018:ffff8801d8b8e918 EFLAGS: 00010202 [ 44.547877] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 44.555221] RDX: 1ffff1003b171d2b RSI: ffffffff8af92020 RDI: 0000000000000008 [ 44.562626] RBP: ffff8801d8b8f320 R08: dffffc0000000000 R09: ffffed003b171e53 [ 44.569900] R10: ffffed003b171e53 R11: 0000000000000003 R12: ffff8801b730c970 [ 44.577234] R13: dffffc0000000000 R14: ffff8801d8b8f2f8 R15: ffff8801d8b8f438 [ 44.584589] FS: 0000000000704880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 44.592889] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.598773] CR2: 0000000020000080 CR3: 00000001d89e4000 CR4: 00000000001406e0 [ 44.606113] Kernel panic - not syncing: Fatal exception [ 44.612446] Kernel Offset: disabled [ 44.616071] Rebooting in 86400 seconds..