[info] Using makefile-style concurrent boot in runlevel 2. [ 25.784376] audit: type=1800 audit(1543245042.435:21): pid=5829 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 25.811183] audit: type=1800 audit(1543245042.435:22): pid=5829 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 '10.128.10.30' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 46.774189] ------------[ cut here ]------------ [ 46.782306] generic_make_request: Trying to write to read-only block-device loop0 (partno 0) [ 46.791965] WARNING: CPU: 1 PID: 6005 at block/blk-core.c:2170 generic_make_request_checks+0xef9/0x26c0 [ 46.801696] Kernel panic - not syncing: panic_on_warn set ... [ 46.807589] CPU: 1 PID: 6005 Comm: syz-executor820 Not tainted 4.20.0-rc4+ #350 [ 46.815034] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.824400] Call Trace: [ 46.826988] dump_stack+0x244/0x39d [ 46.830624] ? dump_stack_print_info.cold.1+0x20/0x20 [ 46.835868] panic+0x2ad/0x55c [ 46.839063] ? add_taint.cold.5+0x16/0x16 [ 46.843214] ? __warn.cold.8+0x5/0x45 [ 46.847013] ? __warn+0xe8/0x1d0 [ 46.850391] ? generic_make_request_checks+0xef9/0x26c0 [ 46.855797] __warn.cold.8+0x20/0x45 [ 46.859532] ? rcu_softirq_qs+0x20/0x20 [ 46.863566] ? generic_make_request_checks+0xef9/0x26c0 [ 46.868968] report_bug+0x254/0x2d0 [ 46.872620] do_error_trap+0x11b/0x200 [ 46.876583] do_invalid_op+0x36/0x40 [ 46.880370] ? generic_make_request_checks+0xef9/0x26c0 [ 46.885735] invalid_op+0x14/0x20 [ 46.889171] RIP: 0010:generic_make_request_checks+0xef9/0x26c0 [ 46.895349] Code: 8b ad e4 04 00 00 4c 8d b5 78 ff ff ff 48 89 df 4c 89 f6 e8 99 93 07 00 48 c7 c7 20 2b 5f 88 48 89 c6 44 89 ea e8 57 d0 cf fd <0f> 0b e9 c1 f4 ff ff e8 fb 6f 06 fe e8 a6 47 f0 fd e8 f1 6f 06 fe [ 46.914248] RSP: 0018:ffff8881b60ce010 EFLAGS: 00010286 [ 46.919639] RAX: 0000000000000000 RBX: ffff8881ce19f280 RCX: 0000000000000000 [ 46.926918] RDX: 0000000000000000 RSI: ffffffff8165eaf5 RDI: 0000000000000005 [ 46.934201] RBP: ffff8881b60ce310 R08: ffff8881c2c64280 R09: ffffed103b5e5020 [ 46.941467] R10: ffffed103b5e5020 R11: ffff8881daf28107 R12: ffff8881ce19f288 [ 46.948751] R13: 0000000000000000 R14: ffff8881b60ce288 R15: ffff8881d18d6000 [ 46.956043] ? vprintk_func+0x85/0x181 [ 46.959946] ? trace_event_raw_event_block_rq_requeue+0x6d0/0x6d0 [ 46.966191] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 46.971294] ? depot_save_stack+0x292/0x470 [ 46.975630] ? __lock_acquire+0x62f/0x4c20 [ 46.979910] ? save_stack+0x43/0xd0 [ 46.983561] ? kasan_kmalloc+0xc7/0xe0 [ 46.987480] ? kasan_slab_alloc+0x12/0x20 [ 46.991629] ? kmem_cache_alloc+0x12e/0x730 [ 46.995952] ? mempool_alloc_slab+0x44/0x60 [ 47.000321] ? mempool_alloc+0x193/0x4a0 [ 47.004439] ? bio_alloc_bioset+0x3a8/0x700 [ 47.008782] ? submit_bh_wbc+0x14b/0x790 [ 47.012876] ? __block_write_full_page+0x93b/0x14a0 [ 47.017932] ? block_write_full_page+0x221/0x270 [ 47.022711] ? blkdev_writepage+0x24/0x30 [ 47.026885] ? mark_held_locks+0x130/0x130 [ 47.031122] ? ____fput+0x15/0x20 [ 47.034587] ? task_work_run+0x1e8/0x2a0 [ 47.038687] ? do_exit+0x1ad6/0x26d0 [ 47.042409] ? do_group_exit+0x177/0x440 [ 47.046466] ? get_signal+0x8b0/0x1980 [ 47.050425] ? do_signal+0x9c/0x21c0 [ 47.054197] ? exit_to_usermode_loop+0x2e5/0x380 [ 47.058953] ? do_syscall_64+0x6be/0x820 [ 47.063027] ? zap_class+0x640/0x640 [ 47.066752] ? check_preemption_disabled+0x48/0x280 [ 47.071781] generic_make_request+0x2c7/0x18a0 [ 47.076377] ? blk_get_request+0x800/0x800 [ 47.080618] ? rcu_read_lock_sched_held+0x14f/0x180 [ 47.085643] ? zap_class+0x640/0x640 [ 47.089360] ? zap_class+0x640/0x640 [ 47.093073] ? mempool_alloc_slab+0x44/0x60 [ 47.097400] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.102935] ? check_preemption_disabled+0x48/0x280 [ 47.107966] ? find_held_lock+0x36/0x1c0 [ 47.112035] ? guard_bio_eod+0x1f4/0x630 [ 47.116097] ? lock_downgrade+0x900/0x900 [ 47.120241] ? check_preemption_disabled+0x48/0x280 [ 47.125287] submit_bio+0xba/0x460 [ 47.128846] ? submit_bio+0xba/0x460 [ 47.132605] ? rcu_softirq_qs+0x20/0x20 [ 47.136632] ? generic_make_request+0x18a0/0x18a0 [ 47.141493] ? __bio_add_page+0x134/0x290 [ 47.145657] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 47.150687] ? guard_bio_eod+0x2bb/0x630 [ 47.154796] submit_bh_wbc+0x5de/0x790 [ 47.158707] __block_write_full_page+0x93b/0x14a0 [ 47.163551] ? I_BDEV+0x20/0x20 [ 47.166849] ? bh_uptodate_or_lock+0x160/0x160 [ 47.171443] ? submit_bh_wbc+0x790/0x790 executing program [ 47.175521] ? trace_hardirqs_on+0xbd/0x310 [ 47.179851] ? tag_pages_for_writeback+0x5ff/0x7d0 [ 47.184797] ? zap_class+0x640/0x640 [ 47.188578] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.194134] ? check_preemption_disabled+0x48/0x280 [ 47.199183] block_write_full_page+0x221/0x270 [ 47.203770] ? I_BDEV+0x20/0x20 [ 47.207058] blkdev_writepage+0x24/0x30 [ 47.211036] __writepage+0x69/0xe0 [ 47.214587] write_cache_pages+0xc91/0x1e20 [ 47.218910] ? __wb_update_bandwidth+0x680/0x680 [ 47.223656] ? clear_page_dirty_for_io+0x1900/0x1900 [ 47.228751] ? kasan_check_write+0x14/0x20 [ 47.232968] ? finish_task_switch+0x615/0x910 [ 47.237442] ? __switch_to_asm+0x40/0x70 [ 47.241500] ? __switch_to_asm+0x34/0x70 [ 47.245564] ? __switch_to_asm+0x40/0x70 [ 47.249618] ? __switch_to_asm+0x34/0x70 [ 47.253668] ? __switch_to_asm+0x40/0x70 [ 47.257716] ? __switch_to_asm+0x34/0x70 [ 47.261767] ? __switch_to_asm+0x34/0x70 [ 47.265844] ? __switch_to_asm+0x34/0x70 [ 47.269899] ? __switch_to_asm+0x40/0x70 [ 47.273944] ? __switch_to_asm+0x34/0x70 [ 47.278032] ? mark_held_locks+0x130/0x130 [ 47.282262] ? lock_acquire+0x1ed/0x520 [ 47.286227] ? __blkdev_put+0xc2/0x830 [ 47.290099] ? lock_release+0xa00/0xa00 [ 47.294190] ? perf_trace_sched_process_exec+0x860/0x860 [ 47.299631] ? zap_class+0x640/0x640 [ 47.303367] ? __mutex_lock+0x85e/0x16f0 [ 47.307431] ? blk_start_plug+0xcc/0x370 [ 47.311494] ? find_held_lock+0x36/0x1c0 [ 47.315556] ? blk_lld_busy+0x70/0x70 [ 47.319374] ? lock_downgrade+0x900/0x900 [ 47.323533] ? zap_class+0x640/0x640 [ 47.327294] ? kasan_check_read+0x11/0x20 [ 47.331468] generic_writepages+0xda/0x150 [ 47.335704] ? write_cache_pages+0x1e20/0x1e20 [ 47.340303] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 47.345857] blkdev_writepages+0x1d/0x30 [ 47.349915] ? blkdev_readpages+0x40/0x40 [ 47.354066] do_writepages+0x9a/0x1a0 [ 47.357891] __filemap_fdatawrite_range+0x364/0x4a0 [ 47.362927] ? delete_from_page_cache_batch+0x1640/0x1640 [ 47.368478] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 47.373418] filemap_write_and_wait+0x44/0xc0 [ 47.377900] __blkdev_put+0x202/0x830 [ 47.381835] ? bd_set_size+0x370/0x370 [ 47.385722] ? do_raw_spin_trylock+0x270/0x270 [ 47.390507] ? fsnotify_first_mark+0x350/0x350 [ 47.395099] blkdev_put+0x98/0x540 [ 47.398653] ? blkdev_put+0x540/0x540 [ 47.402447] blkdev_close+0x8b/0xb0 [ 47.406075] __fput+0x385/0xa30 [ 47.409351] ? get_max_files+0x20/0x20 [ 47.413240] ? trace_hardirqs_on+0xbd/0x310 [ 47.417584] ? kasan_check_read+0x11/0x20 [ 47.421760] ? task_work_run+0x1af/0x2a0 [ 47.425817] ? trace_hardirqs_off_caller+0x310/0x310 [ 47.430908] ____fput+0x15/0x20 [ 47.434177] task_work_run+0x1e8/0x2a0 [ 47.438047] ? task_work_cancel+0x240/0x240 [ 47.442352] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 47.447869] ? switch_task_namespaces+0x9d/0xd0 [ 47.452526] do_exit+0x1ad6/0x26d0 [ 47.456049] ? do_raw_spin_trylock+0x241/0x270 [ 47.460613] ? mm_update_next_owner+0x990/0x990 [ 47.465265] ? print_usage_bug+0xc0/0xc0 [ 47.469320] ? zap_class+0x640/0x640 [ 47.473045] ? find_held_lock+0x36/0x1c0 [ 47.477116] ? __lock_acquire+0x62f/0x4c20 [ 47.481332] ? lock_downgrade+0x900/0x900 [ 47.485475] ? mark_held_locks+0x130/0x130 [ 47.489698] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 47.494872] ? drop_futex_key_refs.isra.14+0x6d/0xe0 [ 47.499961] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 47.505494] ? futex_wait+0x5ec/0xa50 [ 47.509308] ? futex_wait_setup+0x3e0/0x3e0 [ 47.513627] ? drop_futex_key_refs.isra.14+0x6d/0xe0 [ 47.518732] ? futex_wake+0x304/0x760 [ 47.522536] ? zap_class+0x640/0x640 [ 47.526256] ? memset+0x31/0x40 [ 47.529590] ? find_held_lock+0x36/0x1c0 [ 47.533686] ? get_signal+0x95b/0x1980 [ 47.537607] ? _raw_spin_unlock_irq+0x27/0x80 [ 47.542128] ? _raw_spin_unlock_irq+0x27/0x80 [ 47.546637] do_group_exit+0x177/0x440 [ 47.550527] ? trace_hardirqs_off_caller+0x310/0x310 [ 47.555633] ? __ia32_sys_exit+0x50/0x50 [ 47.559729] get_signal+0x8b0/0x1980 [ 47.563467] ? ptrace_notify+0x130/0x130 [ 47.567549] ? __sb_end_write+0xd9/0x110 [ 47.571636] ? pipe_write+0xb64/0xec0 [ 47.575466] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 47.581005] ? __vfs_write+0x121/0x9f0 [ 47.584908] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.590452] do_signal+0x9c/0x21c0 [ 47.593980] ? apparmor_path_rmdir+0x30/0x30 [ 47.598471] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 47.603994] ? fsnotify_first_mark+0x350/0x350 [ 47.608563] ? setup_sigcontext+0x7d0/0x7d0 [ 47.612867] ? fsnotify+0xef0/0xef0 [ 47.616480] ? apparmor_file_permission+0x24/0x30 [ 47.621331] ? exit_to_usermode_loop+0x8c/0x380 [ 47.626025] ? exit_to_usermode_loop+0x8c/0x380 [ 47.630712] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 47.635301] ? trace_hardirqs_on+0xbd/0x310 [ 47.639631] ? do_syscall_64+0x6be/0x820 [ 47.643684] ? __x64_sys_futex+0x47f/0x6a0 [ 47.647908] exit_to_usermode_loop+0x2e5/0x380 [ 47.652479] ? __bpf_trace_sys_exit+0x30/0x30 [ 47.656972] do_syscall_64+0x6be/0x820 [ 47.660875] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 47.666223] ? syscall_return_slowpath+0x5e0/0x5e0 [ 47.671227] ? trace_hardirqs_on_caller+0x310/0x310 [ 47.676268] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 47.681274] ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250 [ 47.687938] ? __switch_to_asm+0x40/0x70 [ 47.691983] ? __switch_to_asm+0x34/0x70 [ 47.696047] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.700909] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 47.706162] RIP: 0033:0x44a4f9 [ 47.709349] Code: 53 5f 52 45 54 5f 44 45 46 45 52 5f 43 4f 4d 4d 49 54 20 2d 20 69 67 6e 6f 72 65 64 0a 00 00 00 00 6f 75 74 70 75 74 20 70 6c <75> 67 69 6e 20 65 72 72 6f 72 3a 20 65 6e 64 54 72 61 6e 73 61 63 [ 47.728234] RSP: 002b:00007f16a1d09cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 47.736087] RAX: fffffffffffffe00 RBX: 00000000006dbc78 RCX: 000000000044a4f9 [ 47.743347] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dbc78 [ 47.750732] RBP: 00000000006dbc70 R08: 0000000000000000 R09: 0000000000000000 [ 47.758025] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc7c [ 47.765296] R13: 00007fffc231cccf R14: 00007f16a1d0a9c0 R15: 00000000006dbd6c [ 47.773881] Kernel Offset: disabled [ 47.777563] Rebooting in 86400 seconds..