[info] Using makefile-style concurrent boot in runlevel 2. [ 24.410191] audit: type=1800 audit(1540422091.099:21): pid=5196 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. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.65' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 44.144459] kasan: CONFIG_KASAN_INLINE enabled [ 44.149221] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 44.156582] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 44.162805] CPU: 0 PID: 5351 Comm: syz-executor312 Not tainted 4.19.0+ #301 [ 44.169996] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.179344] RIP: 0010:rb_erase+0x306/0x3710 [ 44.183649] 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 [ 44.202646] RSP: 0018:ffff8801d94ce918 EFLAGS: 00010202 [ 44.207996] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 44.215263] RDX: 1ffff1003b299d2b RSI: ffffffff8af92020 RDI: 0000000000000008 [ 44.222516] RBP: ffff8801d94cf320 R08: dffffc0000000000 R09: ffffed003b299e53 [ 44.229774] R10: ffffed003b299e53 R11: 0000000000000003 R12: ffff8801b735a970 [ 44.237038] R13: dffffc0000000000 R14: ffff8801d94cf2f8 R15: ffff8801d94cf438 [ 44.244309] FS: 0000000001d00880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 44.252599] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.258480] CR2: 0000000020000080 CR3: 00000001d8c9a000 CR4: 00000000001406f0 [ 44.265778] Call Trace: [ 44.268361] ? modules_open+0xa0/0xa0 [ 44.272150] ? rb_insert_color+0x1460/0x1460 [ 44.276548] ? noop_count+0x40/0x40 [ 44.280155] ? print_bfs_bug+0x80/0x80 [ 44.284030] ? mark_held_locks+0x130/0x130 [ 44.288258] ? kernel_text_address+0x79/0xf0 [ 44.292649] ? noop_count+0x40/0x40 [ 44.296330] ? print_bfs_bug+0x80/0x80 [ 44.300204] ? noop_count+0x40/0x40 [ 44.303822] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 44.309461] ? check_usage_forwards+0x3d0/0x3d0 [ 44.314141] ? __bfs+0x321/0x780 [ 44.317503] ? check_usage+0x1aa/0x790 [ 44.321384] ? print_bfs_bug+0x80/0x80 [ 44.325263] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 44.330181] ? check_usage_forwards+0x3d0/0x3d0 [ 44.334881] ? kasan_check_read+0x11/0x20 [ 44.339026] ? graph_lock+0x9c/0x270 [ 44.342733] ? __bfs+0x321/0x780 [ 44.346092] ? trace_event_raw_event_lock_acquire+0x440/0x440 [ 44.351968] ? lockdep_on+0x50/0x50 [ 44.355580] ? print_bfs_bug+0x80/0x80 [ 44.359455] ? kasan_check_read+0x11/0x20 [ 44.363596] ? graph_lock+0x9c/0x270 [ 44.367295] ? trace_event_raw_event_lock_acquire+0x440/0x440 [ 44.373170] ? mark_held_locks+0x130/0x130 [ 44.377407] ? kasan_check_read+0x11/0x20 [ 44.381540] ? __lock_acquire+0x2aff/0x4c20 [ 44.385916] ? mark_held_locks+0x130/0x130 [ 44.390144] ? print_usage_bug+0xc0/0xc0 [ 44.394194] ? print_usage_bug+0xc0/0xc0 [ 44.398244] ? __lock_acquire+0x62f/0x4c20 [ 44.402477] ? zap_class+0x640/0x640 [ 44.406177] ? print_usage_bug+0xc0/0xc0 [ 44.410227] ? __lock_acquire+0x62f/0x4c20 [ 44.414459] ? mark_held_locks+0x130/0x130 [ 44.418684] ? lock_downgrade+0x900/0x900 [ 44.422824] ? ext4_es_scan+0x960/0x960 [ 44.426792] ? kasan_check_read+0x11/0x20 [ 44.430927] ? do_raw_write_lock+0x14f/0x310 [ 44.435326] ? do_raw_write_trylock+0x270/0x270 [ 44.439998] ? lock_acquire+0x1ed/0x520 [ 44.443966] ? integrity_inode_free+0x77/0x320 [ 44.448549] ? ext4_es_remove_extent+0x151/0x500 [ 44.453296] ? kasan_check_read+0x11/0x20 [ 44.457435] ? do_raw_write_lock+0x14f/0x310 [ 44.461838] ? do_raw_read_unlock+0x70/0x70 [ 44.466158] ? zap_class+0x640/0x640 [ 44.469860] integrity_inode_free+0x12f/0x320 [ 44.474349] security_inode_free+0x19/0x90 [ 44.478585] __destroy_inode+0x328/0x820 [ 44.482683] ? clear_nlink+0xe0/0xe0 [ 44.486401] ? evict+0x5d8/0x980 [ 44.489750] ? lock_downgrade+0x900/0x900 [ 44.493888] ? __inode_wait_for_writeback+0x2cf/0x380 [ 44.499069] destroy_inode+0xda/0x200 [ 44.502962] ? __destroy_inode+0x820/0x820 [ 44.507184] evict+0x5e0/0x980 [ 44.510360] ? destroy_inode+0x200/0x200 [ 44.514407] ? iput+0x671/0xa90 [ 44.517685] ? lock_downgrade+0x900/0x900 [ 44.521953] ? kasan_check_read+0x11/0x20 [ 44.526137] ? do_raw_spin_trylock+0x270/0x270 [ 44.530713] ? lock_downgrade+0x900/0x900 [ 44.534866] iput+0x679/0xa90 [ 44.537969] ? inode_add_lru+0x2a0/0x2a0 [ 44.542015] ? up_write+0x7b/0x220 [ 44.545685] ? down_write_nested+0x130/0x130 [ 44.550083] ? down_write_nested+0x130/0x130 [ 44.554489] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 44.560016] ? check_preemption_disabled+0x48/0x280 [ 44.565023] ext4_ioctl+0x236f/0x4210 [ 44.568814] ? is_bpf_text_address+0xac/0x170 [ 44.573294] ? ext4_ioctl_group_add+0x560/0x560 [ 44.577952] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 44.582877] ? kasan_check_read+0x11/0x20 [ 44.587017] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 44.592285] ? rcu_softirq_qs+0x20/0x20 [ 44.596243] ? rcu_softirq_qs+0x20/0x20 [ 44.600324] ? unwind_dump+0x190/0x190 [ 44.604201] ? is_bpf_text_address+0xd3/0x170 [ 44.608678] ? kernel_text_address+0x79/0xf0 [ 44.613286] ? __kernel_text_address+0xd/0x40 [ 44.617770] ? unwind_get_return_address+0x61/0xa0 [ 44.622689] ? __save_stack_trace+0x8d/0xf0 [ 44.627104] ? save_stack+0xa9/0xd0 [ 44.630954] ? save_stack+0x43/0xd0 [ 44.634564] ? __kasan_slab_free+0x102/0x150 [ 44.638960] ? kasan_slab_free+0xe/0x10 [ 44.642933] ? kmem_cache_free+0x83/0x290 [ 44.647075] ? putname+0xf2/0x130 [ 44.650752] ? do_sys_open+0x54d/0x700 [ 44.654625] ? __x64_sys_openat+0x9d/0x100 [ 44.658849] ? do_syscall_64+0x1b9/0x820 [ 44.662944] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 44.668305] ? trace_hardirqs_off+0xb8/0x310 [ 44.672694] ? kasan_check_read+0x11/0x20 [ 44.676829] ? do_raw_spin_unlock+0xa7/0x330 [ 44.681226] ? trace_hardirqs_on+0x310/0x310 [ 44.685627] ? trace_hardirqs_off+0xb8/0x310 [ 44.690028] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 44.695568] ? ext4_ioctl_group_add+0x560/0x560 [ 44.700243] do_vfs_ioctl+0x1de/0x1720 [ 44.704135] ? rcu_lockdep_current_cpu_online+0x1a4/0x210 [ 44.709665] ? ioctl_preallocate+0x300/0x300 [ 44.714062] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 44.719601] ? __fget_light+0x2e9/0x430 [ 44.723568] ? fget_raw+0x20/0x20 [ 44.727009] ? putname+0xf2/0x130 [ 44.730472] ? rcu_read_lock_sched_held+0x14f/0x180 [ 44.735478] ? kmem_cache_free+0x24f/0x290 [ 44.739703] ? putname+0xf7/0x130 [ 44.743146] ? do_syscall_64+0x9a/0x820 [ 44.747117] ? do_syscall_64+0x9a/0x820 [ 44.751076] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 44.755659] ? security_file_ioctl+0x94/0xc0 [ 44.760053] ksys_ioctl+0xa9/0xd0 [ 44.763498] __x64_sys_ioctl+0x73/0xb0 [ 44.767377] do_syscall_64+0x1b9/0x820 [ 44.771317] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 44.776683] ? syscall_return_slowpath+0x5e0/0x5e0 [ 44.781612] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 44.786466] ? trace_hardirqs_on_caller+0x310/0x310 [ 44.791471] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 44.796473] ? prepare_exit_to_usermode+0x291/0x3b0 [ 44.801542] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 44.806380] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 44.811557] RIP: 0033:0x440009 [ 44.814746] 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 [ 44.833633] RSP: 002b:00007ffe6acd4a68 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 44.841331] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 44.848590] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 44.855850] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 44.863106] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 44.870365] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 44.877632] Modules linked in: [ 44.880958] ---[ end trace 12df5e471e562f96 ]--- [ 44.885820] RIP: 0010:rb_erase+0x306/0x3710 [ 44.890177] 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 [ 44.909100] RSP: 0018:ffff8801d94ce918 EFLAGS: 00010202 [ 44.914453] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 44.921784] RDX: 1ffff1003b299d2b RSI: ffffffff8af92020 RDI: 0000000000000008 [ 44.929072] RBP: ffff8801d94cf320 R08: dffffc0000000000 R09: ffffed003b299e53 [ 44.936334] R10: ffffed003b299e53 R11: 0000000000000003 R12: ffff8801b735a970 [ 44.943630] R13: dffffc0000000000 R14: ffff8801d94cf2f8 R15: ffff8801d94cf438 [ 44.950908] FS: 0000000001d00880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 44.959158] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.965074] CR2: 0000000020000080 CR3: 00000001d8c9a000 CR4: 00000000001406f0 [ 44.972419] Kernel panic - not syncing: Fatal exception [ 44.978589] Kernel Offset: disabled [ 44.982211] Rebooting in 86400 seconds..