[info] Using makefile-style concurrent boot in runlevel 2. [ 24.248388] audit: type=1800 audit(1540428540.946:21): pid=5195 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.297950] audit: type=1800 audit(1540428540.946:22): pid=5195 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 '10.128.10.21' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.000121] kasan: CONFIG_KASAN_INLINE enabled [ 42.004851] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 42.012211] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 42.018440] CPU: 1 PID: 5351 Comm: syz-executor024 Not tainted 4.19.0-rc8+ #275 [ 42.025870] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.035295] RIP: 0010:rb_erase+0x306/0x3710 [ 42.039614] 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 [ 42.059015] RSP: 0018:ffff8801d897e918 EFLAGS: 00010202 [ 42.064939] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 42.072203] RDX: 1ffff1003b12fd2b RSI: ffffffff8afc5060 RDI: 0000000000000008 [ 42.079470] RBP: ffff8801d897f320 R08: dffffc0000000000 R09: fffffbfff12d6970 [ 42.086874] R10: fffffbfff12d6970 R11: ffffffff896b4b83 R12: ffff8801b7315970 [ 42.094200] R13: dffffc0000000000 R14: ffff8801d897f2f8 R15: ffff8801d897f438 [ 42.101585] FS: 0000000001416880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 42.109804] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.115682] CR2: 00000000200000c0 CR3: 00000001bac36000 CR4: 00000000001406e0 [ 42.123122] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.130389] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.137717] Call Trace: [ 42.140298] ? lockdep_on+0x50/0x50 [ 42.144040] ? rb_insert_color+0x1460/0x1460 [ 42.148521] ? lock_downgrade+0x900/0x900 [ 42.152671] ? noop_count+0x40/0x40 [ 42.156290] ? lock_pin_lock+0x350/0x350 [ 42.160336] ? rcu_bh_qs+0xc0/0xc0 [ 42.163868] ? unwind_dump+0x190/0x190 [ 42.167744] ? kasan_check_read+0x11/0x20 [ 42.171877] ? noop_count+0x40/0x40 [ 42.175489] ? lock_pin_lock+0x350/0x350 [ 42.179533] ? mark_held_locks+0x130/0x130 [ 42.183852] ? check_usage_forwards+0x3e0/0x3e0 [ 42.188574] ? __bfs+0x385/0x7a0 [ 42.191933] ? check_usage+0x1a9/0x790 [ 42.195810] ? lock_pin_lock+0x350/0x350 [ 42.199858] ? check_usage_forwards+0x3e0/0x3e0 [ 42.204550] ? __bfs+0x385/0x7a0 [ 42.208056] ? modules_open+0xa0/0xa0 [ 42.211839] ? lockdep_on+0x50/0x50 [ 42.215450] ? lock_pin_lock+0x350/0x350 [ 42.220729] ? mark_held_locks+0x130/0x130 [ 42.224957] ? kasan_check_read+0x11/0x20 [ 42.229760] ? __lock_acquire+0x2881/0x4ec0 [ 42.234073] ? mark_held_locks+0x130/0x130 [ 42.238289] ? print_usage_bug+0xc0/0xc0 [ 42.242336] ? _raw_spin_unlock+0x2c/0x50 [ 42.246473] ? graph_lock+0x170/0x170 [ 42.250267] ? ext4_exit_mballoc+0xc0/0xc0 [ 42.254606] ? __lock_acquire+0x7ec/0x4ec0 [ 42.259437] ? find_held_lock+0x36/0x1c0 [ 42.263503] ? mark_held_locks+0x130/0x130 [ 42.267732] ? lock_downgrade+0x900/0x900 [ 42.271864] ? ext4_es_scan+0x960/0x960 [ 42.275819] ? lock_release+0x970/0x970 [ 42.279776] ? do_raw_write_trylock+0x1c0/0x1c0 [ 42.284434] ? kasan_check_write+0x14/0x20 [ 42.288651] ? lock_acquire+0x1ed/0x520 [ 42.292606] ? integrity_inode_free+0x77/0x320 [ 42.297171] ? ext4_es_remove_extent+0x151/0x500 [ 42.301911] ? lock_release+0x970/0x970 [ 42.305874] ? kasan_check_write+0x14/0x20 [ 42.310094] ? do_raw_write_lock+0xbd/0x1e0 [ 42.314400] integrity_inode_free+0x12f/0x320 [ 42.318883] security_inode_free+0x19/0x90 [ 42.323188] __destroy_inode+0x328/0x820 [ 42.327240] ? generic_update_time+0x450/0x450 [ 42.331802] ? evict+0x5d8/0x980 [ 42.335153] ? lock_downgrade+0x900/0x900 [ 42.339286] ? __inode_wait_for_writeback+0x2cf/0x380 [ 42.344544] destroy_inode+0xda/0x200 [ 42.348336] ? __destroy_inode+0x820/0x820 [ 42.352555] ? kasan_check_write+0x14/0x20 [ 42.356773] ? do_raw_spin_lock+0xc1/0x230 [ 42.360989] evict+0x5e0/0x980 [ 42.364165] ? destroy_inode+0x200/0x200 [ 42.368208] ? iput+0x671/0xa90 [ 42.371475] ? lock_downgrade+0x900/0x900 [ 42.375610] ? kasan_check_read+0x11/0x20 [ 42.379753] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 42.384325] ? lock_downgrade+0x900/0x900 [ 42.388459] iput+0x679/0xa90 [ 42.391557] ? inode_add_lru+0x2a0/0x2a0 [ 42.395606] ? up_write+0x7b/0x220 [ 42.399129] ? up_read+0x110/0x110 [ 42.402647] ? up_read+0x110/0x110 [ 42.406179] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 42.411709] ? check_preemption_disabled+0x48/0x280 [ 42.416718] ext4_ioctl+0x236f/0x4210 [ 42.420506] ? is_bpf_text_address+0xac/0x170 [ 42.424987] ? ext4_ioctl_group_add+0x560/0x560 [ 42.429652] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 42.435840] ? kasan_check_read+0x11/0x20 [ 42.439997] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 42.445262] ? rcu_bh_qs+0xc0/0xc0 [ 42.448784] ? rcu_bh_qs+0xc0/0xc0 [ 42.452306] ? unwind_dump+0x190/0x190 [ 42.456182] ? is_bpf_text_address+0xd3/0x170 [ 42.460919] ? kernel_text_address+0x79/0xf0 [ 42.465317] ? __kernel_text_address+0xd/0x40 [ 42.469798] ? unwind_get_return_address+0x61/0xa0 [ 42.474716] ? __save_stack_trace+0x8d/0xf0 [ 42.480304] ? save_stack+0xa9/0xd0 [ 42.484072] ? save_stack+0x43/0xd0 [ 42.487691] ? __kasan_slab_free+0x102/0x150 [ 42.492085] ? kasan_slab_free+0xe/0x10 [ 42.496042] ? kmem_cache_free+0x83/0x290 [ 42.500168] ? putname+0xf2/0x130 [ 42.503608] ? do_sys_open+0x54d/0x700 [ 42.507478] ? __x64_sys_openat+0x9d/0x100 [ 42.511693] ? do_syscall_64+0x1b9/0x820 [ 42.515745] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.521177] ? trace_hardirqs_off+0xb8/0x310 [ 42.525585] ? kasan_check_read+0x11/0x20 [ 42.529718] ? do_raw_spin_unlock+0xa7/0x330 [ 42.534157] ? trace_hardirqs_on+0x310/0x310 [ 42.538570] ? kasan_check_write+0x14/0x20 [ 42.542793] ? trace_hardirqs_off+0xb8/0x310 [ 42.547273] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 42.552801] ? check_preemption_disabled+0x48/0x280 [ 42.557942] ? check_preemption_disabled+0x48/0x280 [ 42.564083] ? ext4_ioctl_group_add+0x560/0x560 [ 42.568739] do_vfs_ioctl+0x1de/0x1720 [ 42.572717] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 42.577985] ? ioctl_preallocate+0x300/0x300 [ 42.582384] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 42.587911] ? __fget_light+0x2e9/0x430 [ 42.591868] ? fget_raw+0x20/0x20 [ 42.595299] ? putname+0xf2/0x130 [ 42.598784] ? rcu_read_lock_sched_held+0x108/0x120 [ 42.603796] ? kmem_cache_free+0x24f/0x290 [ 42.608016] ? putname+0xf7/0x130 [ 42.611453] ? do_syscall_64+0x9a/0x820 [ 42.615470] ? do_syscall_64+0x9a/0x820 [ 42.619438] ? lockdep_hardirqs_on+0x421/0x5c0 [ 42.624012] ? security_file_ioctl+0x94/0xc0 [ 42.628404] ksys_ioctl+0xa9/0xd0 [ 42.631841] __x64_sys_ioctl+0x73/0xb0 [ 42.635717] do_syscall_64+0x1b9/0x820 [ 42.639589] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 42.644939] ? syscall_return_slowpath+0x5e0/0x5e0 [ 42.649848] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.654674] ? trace_hardirqs_on_caller+0x310/0x310 [ 42.659671] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 42.664671] ? prepare_exit_to_usermode+0x291/0x3b0 [ 42.669668] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.674497] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.679667] RIP: 0033:0x440019 [ 42.682844] 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 [ 42.701734] RSP: 002b:00007ffed5a536a8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 42.709430] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440019 [ 42.716691] RDX: 0000000000440019 RSI: 0000000000006611 RDI: 0000000000000003 [ 42.723945] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 42.731196] R10: 0000000000000000 R11: 0000000000000213 R12: 00000000004018a0 [ 42.738452] R13: 0000000000401930 R14: 0000000000000000 R15: 0000000000000000 [ 42.745826] Modules linked in: [ 42.749132] ---[ end trace 2c61f8f2a4130de9 ]--- [ 42.753939] RIP: 0010:rb_erase+0x306/0x3710 [ 42.758264] 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 [ 42.777298] RSP: 0018:ffff8801d897e918 EFLAGS: 00010202 [ 42.782668] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 42.789952] RDX: 1ffff1003b12fd2b RSI: ffffffff8afc5060 RDI: 0000000000000008 [ 42.797250] RBP: ffff8801d897f320 R08: dffffc0000000000 R09: fffffbfff12d6970 [ 42.804548] R10: fffffbfff12d6970 R11: ffffffff896b4b83 R12: ffff8801b7315970 [ 42.811818] R13: dffffc0000000000 R14: ffff8801d897f2f8 R15: ffff8801d897f438 [ 42.819111] FS: 0000000001416880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 42.827357] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.833222] CR2: 00000000200000c0 CR3: 00000001bac36000 CR4: 00000000001406e0 [ 42.840532] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.847825] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.855160] Kernel panic - not syncing: Fatal exception [ 42.861426] Kernel Offset: disabled [ 42.865052] Rebooting in 86400 seconds..