[info] Using makefile-style concurrent boot in runlevel 2. [ 24.440109] audit: type=1800 audit(1539436920.094:21): pid=5179 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.468535] audit: type=1800 audit(1539436920.094:22): pid=5179 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 '10.128.10.58' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 37.346035] kasan: CONFIG_KASAN_INLINE enabled [ 37.350805] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 37.358253] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 37.364488] CPU: 1 PID: 5335 Comm: syz-executor445 Not tainted 4.19.0-rc7+ #281 [ 37.371930] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.381388] RIP: 0010:rb_erase+0x306/0x3710 [ 37.385707] 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 [ 37.404607] RSP: 0018:ffff8801d9b9e918 EFLAGS: 00010202 [ 37.409970] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 37.417234] RDX: 1ffff1003b373d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 37.424494] RBP: ffff8801d9b9f320 R08: dffffc0000000000 R09: fffffbfff12d69a0 [ 37.431761] R10: fffffbfff12d69a0 R11: ffffffff896b4d03 R12: ffff8801c3c12530 [ 37.439021] R13: dffffc0000000000 R14: ffff8801d9b9f2f8 R15: ffff8801d9b9f438 [ 37.446287] FS: 00000000023ab880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 37.454551] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.460431] CR2: 0000000020000080 CR3: 00000001d9b81000 CR4: 00000000001406e0 [ 37.467710] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.475089] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.482438] Call Trace: [ 37.485022] ? lockdep_on+0x50/0x50 [ 37.488652] ? rb_insert_color+0x1460/0x1460 [ 37.493073] ? noop_count+0x40/0x40 [ 37.496707] ? lock_pin_lock+0x350/0x350 [ 37.500756] ? noop_count+0x40/0x40 [ 37.504365] ? kasan_check_read+0x11/0x20 [ 37.508506] ? noop_count+0x40/0x40 [ 37.512117] ? noop_count+0x40/0x40 [ 37.515726] ? lock_pin_lock+0x350/0x350 [ 37.519790] ? mark_held_locks+0x130/0x130 [ 37.524016] ? check_usage_forwards+0x3e0/0x3e0 [ 37.528668] ? __bfs+0x385/0x7a0 [ 37.532012] ? noop_count+0x40/0x40 [ 37.535623] ? check_usage+0x1a9/0x790 [ 37.539511] ? lock_pin_lock+0x350/0x350 [ 37.543558] ? check_usage_forwards+0x3e0/0x3e0 [ 37.548208] ? __bfs+0x385/0x7a0 [ 37.551558] ? __lock_acquire+0x7ec/0x4ec0 [ 37.555781] ? lockdep_on+0x50/0x50 [ 37.559394] ? lock_pin_lock+0x350/0x350 [ 37.563439] ? mark_held_locks+0x130/0x130 [ 37.567661] ? kasan_check_read+0x11/0x20 [ 37.571793] ? __lock_acquire+0x2881/0x4ec0 [ 37.576104] ? mark_held_locks+0x130/0x130 [ 37.580320] ? print_usage_bug+0xc0/0xc0 [ 37.584366] ? _raw_spin_unlock+0x2c/0x50 [ 37.588511] ? graph_lock+0x170/0x170 [ 37.592402] ? ext4_exit_mballoc+0xc0/0xc0 [ 37.596629] ? __lock_acquire+0x7ec/0x4ec0 [ 37.600855] ? find_held_lock+0x36/0x1c0 [ 37.604902] ? mark_held_locks+0x130/0x130 [ 37.609123] ? lock_downgrade+0x900/0x900 [ 37.613252] ? ext4_es_scan+0x960/0x960 [ 37.617208] ? lock_release+0x970/0x970 [ 37.621168] ? do_raw_write_trylock+0x1c0/0x1c0 [ 37.625820] ? kasan_check_write+0x14/0x20 [ 37.630039] ? lock_acquire+0x1ed/0x520 [ 37.633996] ? integrity_inode_free+0x77/0x320 [ 37.638562] ? ext4_es_remove_extent+0x151/0x500 [ 37.643300] ? lock_release+0x970/0x970 [ 37.647258] ? kasan_check_write+0x14/0x20 [ 37.651477] ? do_raw_write_lock+0xbd/0x1b0 [ 37.655859] integrity_inode_free+0x12f/0x320 [ 37.660345] security_inode_free+0x19/0x90 [ 37.664621] __destroy_inode+0x328/0x820 [ 37.668673] ? generic_update_time+0x450/0x450 [ 37.673236] ? evict+0x5d8/0x980 [ 37.676587] ? lock_downgrade+0x900/0x900 [ 37.680714] ? __inode_wait_for_writeback+0x2cf/0x380 [ 37.685893] destroy_inode+0xda/0x200 [ 37.689783] ? __destroy_inode+0x820/0x820 [ 37.694006] ? kasan_check_write+0x14/0x20 [ 37.698228] ? do_raw_spin_lock+0xc1/0x200 [ 37.702482] evict+0x5e0/0x980 [ 37.705777] ? destroy_inode+0x200/0x200 [ 37.709824] ? iput+0x671/0xa90 [ 37.713090] ? lock_downgrade+0x900/0x900 [ 37.717222] ? kasan_check_read+0x11/0x20 [ 37.721356] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 37.725926] ? lock_downgrade+0x900/0x900 [ 37.730310] iput+0x679/0xa90 [ 37.733519] ? inode_add_lru+0x2a0/0x2a0 [ 37.737570] ? up_write+0x7b/0x220 [ 37.741091] ? up_read+0x110/0x110 [ 37.744615] ? up_read+0x110/0x110 [ 37.748141] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.753749] ? check_preemption_disabled+0x48/0x200 [ 37.758771] ext4_ioctl+0x236f/0x4210 [ 37.762572] ? is_bpf_text_address+0xac/0x170 [ 37.767064] ? ext4_ioctl_group_add+0x560/0x560 [ 37.771725] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 37.777518] ? kasan_check_read+0x11/0x20 [ 37.781659] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 37.786927] ? rcu_bh_qs+0xc0/0xc0 [ 37.790449] ? rcu_bh_qs+0xc0/0xc0 [ 37.793971] ? unwind_dump+0x190/0x190 [ 37.797846] ? is_bpf_text_address+0xd3/0x170 [ 37.802519] ? kernel_text_address+0x79/0xf0 [ 37.806921] ? __kernel_text_address+0xd/0x40 [ 37.811466] ? unwind_get_return_address+0x61/0xa0 [ 37.816390] ? __save_stack_trace+0x8d/0xf0 [ 37.820768] ? save_stack+0xa9/0xd0 [ 37.824383] ? save_stack+0x43/0xd0 [ 37.827995] ? __kasan_slab_free+0x102/0x150 [ 37.832432] ? kasan_slab_free+0xe/0x10 [ 37.836395] ? kmem_cache_free+0x83/0x290 [ 37.840670] ? putname+0xf2/0x130 [ 37.844111] ? do_sys_open+0x54d/0x700 [ 37.847979] ? __x64_sys_openat+0x9d/0x100 [ 37.852198] ? do_syscall_64+0x1b9/0x820 [ 37.856240] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.861726] ? trace_hardirqs_off+0xb8/0x310 [ 37.866115] ? kasan_check_read+0x11/0x20 [ 37.870254] ? do_raw_spin_unlock+0xa7/0x2f0 [ 37.874784] ? trace_hardirqs_on+0x310/0x310 [ 37.879179] ? kasan_check_write+0x14/0x20 [ 37.883395] ? trace_hardirqs_off+0xb8/0x310 [ 37.887791] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.893316] ? check_preemption_disabled+0x48/0x200 [ 37.898669] ? check_preemption_disabled+0x48/0x200 [ 37.903673] ? ext4_ioctl_group_add+0x560/0x560 [ 37.908441] do_vfs_ioctl+0x1de/0x1720 [ 37.912318] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 37.917581] ? ioctl_preallocate+0x300/0x300 [ 37.921974] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.927507] ? __fget_light+0x2e9/0x430 [ 37.931475] ? fget_raw+0x20/0x20 [ 37.934920] ? putname+0xf2/0x130 [ 37.938360] ? rcu_read_lock_sched_held+0x108/0x120 [ 37.943362] ? kmem_cache_free+0x24f/0x290 [ 37.947691] ? putname+0xf7/0x130 [ 37.951130] ? do_syscall_64+0x9a/0x820 [ 37.955164] ? do_syscall_64+0x9a/0x820 [ 37.959135] ? lockdep_hardirqs_on+0x421/0x5c0 [ 37.963706] ? security_file_ioctl+0x94/0xc0 [ 37.968203] ksys_ioctl+0xa9/0xd0 [ 37.971649] __x64_sys_ioctl+0x73/0xb0 [ 37.975531] do_syscall_64+0x1b9/0x820 [ 37.979414] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 37.984771] ? syscall_return_slowpath+0x5e0/0x5e0 [ 37.989686] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.994531] ? trace_hardirqs_on_caller+0x310/0x310 [ 37.999635] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 38.004639] ? prepare_exit_to_usermode+0x291/0x3b0 [ 38.009641] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.014474] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.019650] RIP: 0033:0x440009 [ 38.022833] 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 [ 38.041724] RSP: 002b:00007ffe5ff9b0d8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 38.049415] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 38.056680] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 38.063930] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 38.071185] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 38.078440] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 38.085698] Modules linked in: [ 38.089005] ---[ end trace 6bd9022ee0cf7ff6 ]--- [ 38.093764] RIP: 0010:rb_erase+0x306/0x3710 [ 38.098071] 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 [ 38.117179] RSP: 0018:ffff8801d9b9e918 EFLAGS: 00010202 [ 38.122658] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 38.130015] RDX: 1ffff1003b373d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 38.137444] RBP: ffff8801d9b9f320 R08: dffffc0000000000 R09: fffffbfff12d69a0 [ 38.144826] R10: fffffbfff12d69a0 R11: ffffffff896b4d03 R12: ffff8801c3c12530 [ 38.152118] R13: dffffc0000000000 R14: ffff8801d9b9f2f8 R15: ffff8801d9b9f438 [ 38.159411] FS: 00000000023ab880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 38.167624] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.173536] CR2: 0000000020000080 CR3: 00000001d9b81000 CR4: 00000000001406e0 [ 38.180920] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.188233] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.195562] Kernel panic - not syncing: Fatal exception [ 38.201691] Kernel Offset: disabled [ 38.205310] Rebooting in 86400 seconds..