[info] Using makefile-style concurrent boot in runlevel 2. [ 25.319552] audit: type=1800 audit(1539952521.763:21): pid=5222 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 syzkaller login: [ 37.973058] sshd (5364) used greatest stack depth: 15976 bytes left Warning: Permanently added '10.128.0.6' (ECDSA) to the list of known hosts. executing program [ 44.506811] kasan: CONFIG_KASAN_INLINE enabled [ 44.511641] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 44.519042] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 44.525275] CPU: 0 PID: 5379 Comm: syz-executor423 Not tainted 4.19.0-rc8+ #291 [ 44.532700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.542042] RIP: 0010:rb_erase+0x306/0x3710 [ 44.546354] 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 [ 44.565243] RSP: 0018:ffff8801bb356918 EFLAGS: 00010202 [ 44.570600] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 44.577860] RDX: 1ffff1003766ad2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 44.585108] RBP: ffff8801bb357320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 44.592357] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801b7722970 [ 44.599605] R13: dffffc0000000000 R14: ffff8801bb3572f8 R15: ffff8801bb357438 [ 44.606861] FS: 0000000001531880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 44.615068] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.620929] CR2: 0000000020000080 CR3: 00000001d8e93000 CR4: 00000000001406f0 [ 44.628183] Call Trace: [ 44.630755] ? lockdep_on+0x50/0x50 [ 44.634366] ? rb_insert_color+0x1460/0x1460 [ 44.638757] ? noop_count+0x40/0x40 [ 44.642370] ? lock_pin_lock+0x350/0x350 [ 44.646420] ? rcu_bh_qs+0xc0/0xc0 [ 44.649944] ? unwind_dump+0x190/0x190 [ 44.653819] ? kasan_check_read+0x11/0x20 [ 44.657951] ? __lock_acquire+0x2881/0x4ec0 [ 44.662258] ? noop_count+0x40/0x40 [ 44.665931] ? lock_pin_lock+0x350/0x350 [ 44.669983] ? mark_held_locks+0x130/0x130 [ 44.674199] ? check_usage_forwards+0x3e0/0x3e0 [ 44.678847] ? __bfs+0x385/0x7a0 [ 44.682204] ? check_usage+0x1a9/0x790 [ 44.686079] ? lock_pin_lock+0x350/0x350 [ 44.690122] ? check_usage_forwards+0x3e0/0x3e0 [ 44.694772] ? __bfs+0x385/0x7a0 [ 44.698189] ? modules_open+0xa0/0xa0 [ 44.701974] ? lockdep_on+0x50/0x50 [ 44.705580] ? lock_pin_lock+0x350/0x350 [ 44.709626] ? mark_held_locks+0x130/0x130 [ 44.713840] ? kasan_check_read+0x11/0x20 [ 44.717980] ? __lock_acquire+0x2881/0x4ec0 [ 44.722292] ? mark_held_locks+0x130/0x130 [ 44.726507] ? print_usage_bug+0xc0/0xc0 [ 44.730547] ? _raw_spin_unlock+0x2c/0x50 [ 44.734810] ? graph_lock+0x170/0x170 [ 44.738622] ? ext4_exit_mballoc+0xc0/0xc0 [ 44.742847] ? __lock_acquire+0x7ec/0x4ec0 [ 44.747069] ? find_held_lock+0x36/0x1c0 [ 44.751191] ? mark_held_locks+0x130/0x130 [ 44.755422] ? lock_downgrade+0x900/0x900 [ 44.759552] ? ext4_es_scan+0x960/0x960 [ 44.763504] ? lock_release+0x970/0x970 [ 44.767460] ? do_raw_write_trylock+0x1c0/0x1c0 [ 44.772108] ? kasan_check_write+0x14/0x20 [ 44.776324] ? lock_acquire+0x1ed/0x520 [ 44.780283] ? integrity_inode_free+0x77/0x320 [ 44.784854] ? ext4_es_remove_extent+0x151/0x500 [ 44.789668] ? lock_release+0x970/0x970 [ 44.793639] ? kasan_check_write+0x14/0x20 [ 44.797853] ? do_raw_write_lock+0xbd/0x1b0 [ 44.802155] integrity_inode_free+0x12f/0x320 [ 44.806640] security_inode_free+0x19/0x90 [ 44.810856] __destroy_inode+0x328/0x820 [ 44.814899] ? generic_update_time+0x450/0x450 [ 44.819459] ? evict+0x5d8/0x980 [ 44.822805] ? lock_downgrade+0x900/0x900 [ 44.826935] ? __inode_wait_for_writeback+0x2cf/0x380 [ 44.832105] destroy_inode+0xda/0x200 [ 44.835897] ? __destroy_inode+0x820/0x820 [ 44.840180] ? kasan_check_write+0x14/0x20 [ 44.844408] ? do_raw_spin_lock+0xc1/0x200 [ 44.848629] evict+0x5e0/0x980 [ 44.851804] ? destroy_inode+0x200/0x200 [ 44.855847] ? iput+0x671/0xa90 [ 44.859107] ? lock_downgrade+0x900/0x900 [ 44.863392] ? kasan_check_read+0x11/0x20 [ 44.867531] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 44.872102] ? lock_downgrade+0x900/0x900 [ 44.876234] iput+0x679/0xa90 [ 44.879324] ? inode_add_lru+0x2a0/0x2a0 [ 44.883370] ? up_write+0x7b/0x220 [ 44.886889] ? up_read+0x110/0x110 [ 44.890409] ? up_read+0x110/0x110 [ 44.893931] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 44.899449] ? check_preemption_disabled+0x48/0x200 [ 44.904449] ext4_ioctl+0x236f/0x4210 [ 44.908283] ? is_bpf_text_address+0xac/0x170 [ 44.912773] ? ext4_ioctl_group_add+0x560/0x560 [ 44.917464] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 44.923250] ? kasan_check_read+0x11/0x20 [ 44.927429] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 44.932693] ? rcu_bh_qs+0xc0/0xc0 [ 44.936216] ? rcu_bh_qs+0xc0/0xc0 [ 44.939737] ? unwind_dump+0x190/0x190 [ 44.943609] ? is_bpf_text_address+0xd3/0x170 [ 44.948086] ? kernel_text_address+0x79/0xf0 [ 44.952476] ? __kernel_text_address+0xd/0x40 [ 44.956953] ? unwind_get_return_address+0x61/0xa0 [ 44.961865] ? __save_stack_trace+0x8d/0xf0 [ 44.966174] ? save_stack+0xa9/0xd0 [ 44.969781] ? save_stack+0x43/0xd0 [ 44.973388] ? __kasan_slab_free+0x102/0x150 [ 44.977777] ? kasan_slab_free+0xe/0x10 [ 44.981730] ? kmem_cache_free+0x83/0x290 [ 44.985855] ? putname+0xf2/0x130 [ 44.989332] ? do_sys_open+0x54d/0x700 [ 44.993209] ? __x64_sys_openat+0x9d/0x100 [ 44.997430] ? do_syscall_64+0x1b9/0x820 [ 45.001479] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.006869] ? trace_hardirqs_off+0xb8/0x310 [ 45.011265] ? kasan_check_read+0x11/0x20 [ 45.015396] ? do_raw_spin_unlock+0xa7/0x2f0 [ 45.019790] ? trace_hardirqs_on+0x310/0x310 [ 45.024180] ? kasan_check_write+0x14/0x20 [ 45.028400] ? trace_hardirqs_off+0xb8/0x310 [ 45.032791] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.038308] ? check_preemption_disabled+0x48/0x200 [ 45.043306] ? check_preemption_disabled+0x48/0x200 [ 45.048309] ? ext4_ioctl_group_add+0x560/0x560 [ 45.052962] do_vfs_ioctl+0x1de/0x1720 [ 45.056834] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 45.062092] ? ioctl_preallocate+0x300/0x300 [ 45.066483] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.072008] ? __fget_light+0x2e9/0x430 [ 45.075977] ? fget_raw+0x20/0x20 [ 45.079416] ? putname+0xf2/0x130 [ 45.082849] ? rcu_read_lock_sched_held+0x108/0x120 [ 45.087848] ? kmem_cache_free+0x24f/0x290 [ 45.092065] ? putname+0xf7/0x130 [ 45.095499] ? do_syscall_64+0x9a/0x820 [ 45.099495] ? do_syscall_64+0x9a/0x820 [ 45.103458] ? lockdep_hardirqs_on+0x421/0x5c0 [ 45.108088] ? security_file_ioctl+0x94/0xc0 [ 45.112490] ksys_ioctl+0xa9/0xd0 [ 45.115929] __x64_sys_ioctl+0x73/0xb0 [ 45.119797] do_syscall_64+0x1b9/0x820 [ 45.123668] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 45.129014] ? syscall_return_slowpath+0x5e0/0x5e0 [ 45.133983] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.138880] ? trace_hardirqs_on_caller+0x310/0x310 [ 45.143925] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 45.148934] ? prepare_exit_to_usermode+0x291/0x3b0 [ 45.153938] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.158764] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.163938] RIP: 0033:0x440009 [ 45.167118] 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 [ 45.186001] RSP: 002b:00007ffc92de56b8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 45.193728] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 45.200985] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 45.208348] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 45.215614] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 45.222867] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 45.230118] Modules linked in: [ 45.233404] ---[ end trace 8176ca570c306806 ]--- [ 45.238157] RIP: 0010:rb_erase+0x306/0x3710 [ 45.242521] 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 [ 45.261591] RSP: 0018:ffff8801bb356918 EFLAGS: 00010202 [ 45.266951] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 45.274428] RDX: 1ffff1003766ad2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 45.281701] RBP: ffff8801bb357320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 45.289008] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801b7722970 [ 45.296386] R13: dffffc0000000000 R14: ffff8801bb3572f8 R15: ffff8801bb357438 [ 45.303688] FS: 0000000001531880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 45.311914] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.317777] CR2: 0000000020000080 CR3: 00000001d8e93000 CR4: 00000000001406f0 [ 45.325066] Kernel panic - not syncing: Fatal exception [ 45.331192] Kernel Offset: disabled [ 45.334813] Rebooting in 86400 seconds..