[info] Using makefile-style concurrent boot in runlevel 2. [ 26.742466] audit: type=1800 audit(1543148857.546:21): pid=5836 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 '10.128.10.19' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 35.087443] ------------[ cut here ]------------ [ 35.092297] generic_make_request: Trying to write to read-only block-device loop0 (partno 0) [ 35.101409] WARNING: CPU: 0 PID: 5997 at block/blk-core.c:2170 generic_make_request_checks+0xef9/0x26c0 [ 35.110929] Kernel panic - not syncing: panic_on_warn set ... [ 35.116808] CPU: 0 PID: 5997 Comm: blkid Not tainted 4.20.0-rc3+ #348 [ 35.123375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.132712] Call Trace: [ 35.135288] dump_stack+0x244/0x39d [ 35.138904] ? dump_stack_print_info.cold.1+0x20/0x20 [ 35.144119] panic+0x2ad/0x55c [ 35.147314] ? add_taint.cold.5+0x16/0x16 [ 35.151466] ? __warn.cold.8+0x5/0x45 [ 35.155264] ? __warn+0xe8/0x1d0 [ 35.158643] ? generic_make_request_checks+0xef9/0x26c0 [ 35.163994] __warn.cold.8+0x20/0x45 [ 35.167703] ? rcu_softirq_qs+0x20/0x20 [ 35.171688] ? generic_make_request_checks+0xef9/0x26c0 [ 35.177054] report_bug+0x254/0x2d0 [ 35.180684] do_error_trap+0x11b/0x200 [ 35.184564] do_invalid_op+0x36/0x40 [ 35.188301] ? generic_make_request_checks+0xef9/0x26c0 [ 35.193666] invalid_op+0x14/0x20 [ 35.197132] RIP: 0010:generic_make_request_checks+0xef9/0x26c0 [ 35.203090] 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 60 2b 5f 88 48 89 c6 44 89 ea e8 d7 d3 cf fd <0f> 0b e9 c1 f4 ff ff e8 6b 73 06 fe e8 26 4b f0 fd e8 61 73 06 fe [ 35.221975] RSP: 0018:ffff8881c1e569d0 EFLAGS: 00010282 [ 35.227334] RAX: 0000000000000000 RBX: ffff8881c3e08ac0 RCX: 0000000000000000 [ 35.234593] RDX: 0000000000000000 RSI: ffffffff8165eaf5 RDI: 0000000000000005 [ 35.241857] RBP: ffff8881c1e56cd0 R08: ffff8881c1c36500 R09: ffffed103b5c5020 [ 35.249119] R10: ffffed103b5c5020 R11: ffff8881dae28107 R12: ffff8881c3e08ac8 [ 35.256389] R13: 0000000000000000 R14: ffff8881c1e56c48 R15: ffff8881d19d2000 [ 35.263651] ? vprintk_func+0x85/0x181 [ 35.267539] ? trace_event_raw_event_block_rq_requeue+0x6d0/0x6d0 [ 35.273761] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 35.278882] ? depot_save_stack+0x292/0x470 [ 35.283213] ? __lock_acquire+0x62f/0x4c20 [ 35.287434] ? save_stack+0x43/0xd0 [ 35.291050] ? kasan_kmalloc+0xc7/0xe0 [ 35.294919] ? kasan_slab_alloc+0x12/0x20 [ 35.299058] ? kmem_cache_alloc+0x12e/0x730 [ 35.303378] ? mempool_alloc_slab+0x44/0x60 [ 35.307700] ? mempool_alloc+0x193/0x4a0 [ 35.311754] ? bio_alloc_bioset+0x3a8/0x700 [ 35.316073] ? submit_bh_wbc+0x14b/0x790 [ 35.320122] ? __block_write_full_page+0x93b/0x14a0 [ 35.325125] ? block_write_full_page+0x221/0x270 [ 35.329870] ? blkdev_writepage+0x24/0x30 [ 35.334026] ? mark_held_locks+0x130/0x130 [ 35.338281] ? ____fput+0x15/0x20 [ 35.341722] ? task_work_run+0x1e8/0x2a0 [ 35.345771] ? exit_to_usermode_loop+0x318/0x380 [ 35.350510] ? do_syscall_64+0x6be/0x820 [ 35.354554] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.359899] ? zap_class+0x640/0x640 [ 35.363605] ? trace_hardirqs_on+0xbd/0x310 [ 35.367916] ? zap_class+0x640/0x640 [ 35.371634] ? check_preemption_disabled+0x48/0x280 [ 35.376682] generic_make_request+0x2c7/0x18a0 [ 35.381281] ? blk_get_request+0x800/0x800 [ 35.385504] ? rcu_read_lock_sched_held+0x14f/0x180 [ 35.390507] ? zap_class+0x640/0x640 [ 35.394230] ? zap_class+0x640/0x640 [ 35.397943] ? mempool_alloc_slab+0x44/0x60 [ 35.402270] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.407792] ? check_preemption_disabled+0x48/0x280 [ 35.412797] ? find_held_lock+0x36/0x1c0 [ 35.416848] ? guard_bio_eod+0x1f4/0x630 [ 35.420896] ? lock_downgrade+0x900/0x900 [ 35.425048] ? check_preemption_disabled+0x48/0x280 [ 35.430054] submit_bio+0xba/0x460 [ 35.433577] ? submit_bio+0xba/0x460 [ 35.437290] ? rcu_softirq_qs+0x20/0x20 [ 35.441283] ? generic_make_request+0x18a0/0x18a0 [ 35.446128] ? __bio_add_page+0x134/0x290 [ 35.450265] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 35.455286] ? guard_bio_eod+0x2bb/0x630 [ 35.459349] submit_bh_wbc+0x5de/0x790 [ 35.463243] __block_write_full_page+0x93b/0x14a0 [ 35.468077] ? I_BDEV+0x20/0x20 [ 35.471377] ? bh_uptodate_or_lock+0x160/0x160 [ 35.475965] ? submit_bh_wbc+0x790/0x790 [ 35.480021] ? trace_hardirqs_on+0xbd/0x310 [ 35.484338] ? tag_pages_for_writeback+0x5ff/0x7d0 [ 35.489257] ? zap_class+0x640/0x640 [ 35.492962] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.498482] ? check_preemption_disabled+0x48/0x280 [ 35.503489] block_write_full_page+0x221/0x270 [ 35.508089] ? I_BDEV+0x20/0x20 [ 35.511366] blkdev_writepage+0x24/0x30 [ 35.515328] __writepage+0x69/0xe0 [ 35.518881] write_cache_pages+0xc91/0x1e20 [ 35.523195] ? __wb_update_bandwidth+0x680/0x680 [ 35.527945] ? clear_page_dirty_for_io+0x1900/0x1900 [ 35.533043] ? __pagevec_lru_add+0x30/0x30 [ 35.537262] ? mark_held_locks+0x130/0x130 [ 35.541487] ? get_mem_cgroup_from_mm.part.62+0x204/0x880 [ 35.547046] ? mark_held_locks+0x130/0x130 [ 35.551288] ? rcu_softirq_qs+0x20/0x20 [ 35.555260] ? lock_acquire+0x1ed/0x520 [ 35.559223] ? __blkdev_put+0xc2/0x830 [ 35.563097] ? lock_release+0xa00/0xa00 [ 35.567068] ? perf_trace_sched_process_exec+0x860/0x860 [ 35.572501] ? lock_page_memcg+0x350/0x350 [ 35.576722] ? zap_class+0x640/0x640 [ 35.580428] ? __mutex_lock+0x85e/0x16f0 [ 35.584481] ? blk_start_plug+0xcc/0x370 [ 35.588524] ? find_held_lock+0x36/0x1c0 [ 35.592570] ? blk_lld_busy+0x70/0x70 [ 35.596372] ? wbc_attach_and_unlock_inode+0x5c0/0xa30 [ 35.601650] ? lock_downgrade+0x900/0x900 [ 35.605784] ? zap_class+0x640/0x640 [ 35.609491] ? kasan_check_read+0x11/0x20 [ 35.613634] generic_writepages+0xda/0x150 [ 35.617867] ? write_cache_pages+0x1e20/0x1e20 [ 35.622451] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 35.627975] blkdev_writepages+0x1d/0x30 [ 35.632029] ? blkdev_readpages+0x40/0x40 [ 35.636162] do_writepages+0x9a/0x1a0 [ 35.639952] __filemap_fdatawrite_range+0x364/0x4a0 [ 35.644957] ? delete_from_page_cache_batch+0x1640/0x1640 [ 35.650501] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 35.655425] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 35.660945] ? locks_remove_posix+0x47d/0x840 [ 35.665429] ? blkdev_put+0x540/0x540 [ 35.669214] filemap_write_and_wait+0x44/0xc0 [ 35.673752] __blkdev_put+0x202/0x830 [ 35.677543] ? bd_set_size+0x370/0x370 [ 35.681414] ? ima_file_free+0x132/0x650 [ 35.685462] ? fsnotify_first_mark+0x350/0x350 [ 35.690039] ? blkdev_put+0x540/0x540 [ 35.693822] blkdev_put+0x98/0x540 [ 35.697350] ? blkdev_put+0x540/0x540 [ 35.701135] blkdev_close+0x8b/0xb0 [ 35.704782] __fput+0x385/0xa30 [ 35.708084] ? get_max_files+0x20/0x20 [ 35.711955] ? trace_hardirqs_on+0xbd/0x310 [ 35.716262] ? kasan_check_read+0x11/0x20 [ 35.720400] ? task_work_run+0x1af/0x2a0 [ 35.724447] ? trace_hardirqs_off_caller+0x310/0x310 [ 35.729537] ? filp_close+0x1cd/0x250 [ 35.733325] ____fput+0x15/0x20 [ 35.736589] task_work_run+0x1e8/0x2a0 [ 35.740463] ? task_work_cancel+0x240/0x240 [ 35.744774] ? copy_fd_bitmaps+0x210/0x210 [ 35.749163] ? do_syscall_64+0x9a/0x820 [ 35.753125] exit_to_usermode_loop+0x318/0x380 [ 35.757695] ? __bpf_trace_sys_exit+0x30/0x30 [ 35.762173] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.767712] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.773234] do_syscall_64+0x6be/0x820 [ 35.777106] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 35.782455] ? syscall_return_slowpath+0x5e0/0x5e0 [ 35.787368] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.792196] ? trace_hardirqs_on_caller+0x310/0x310 [ 35.797200] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 35.802206] ? prepare_exit_to_usermode+0x291/0x3b0 [ 35.807210] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.812048] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.817220] RIP: 0033:0x7feeb3bf42b0 [ 35.820957] Code: 40 75 0b 31 c0 48 83 c4 08 e9 0c ff ff ff 48 8d 3d c5 32 08 00 e8 c0 07 02 00 83 3d 45 a3 2b 00 00 75 10 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ce 8a 01 00 48 89 04 24 [ 35.839882] RSP: 002b:00007fff63e71878 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 35.847572] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007feeb3bf42b0 [ 35.854827] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 35.862082] RBP: 0000000000000000 R08: 0000000000000028 R09: 0000000001680000 [ 35.869334] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000001117030 [ 35.876588] R13: 0000000000000000 R14: 0000000000000003 R15: 0000000000000005 [ 35.884849] Kernel Offset: disabled [ 35.888514] Rebooting in 86400 seconds..