Warning: Permanently added '10.128.0.171' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 51.989544][ T8422] ------------[ cut here ]------------ [ 51.995191][ T8422] Trying to write to read-only block-device nullb0 (partno 0) [ 52.004427][ T8422] WARNING: CPU: 1 PID: 8422 at block/blk-core.c:703 submit_bio_checks+0x1044/0x1540 [ 52.014280][ T8422] Modules linked in: [ 52.018449][ T8422] CPU: 1 PID: 8422 Comm: syz-executor169 Not tainted 5.14.0-rc1-syzkaller #0 [ 52.027741][ T8422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.038244][ T8422] RIP: 0010:submit_bio_checks+0x1044/0x1540 [ 52.045763][ T8422] Code: 03 48 b9 00 00 00 00 00 fc ff df 8a 04 08 84 c0 0f 85 f1 04 00 00 0f b6 13 48 c7 c7 c0 08 91 8a 4c 89 f6 31 c0 e8 ec 99 5d fd <0f> 0b 49 bd 00 00 00 00 00 fc ff df 4c 8b 74 24 18 e9 ca f3 ff ff [ 52.066445][ T8422] RSP: 0018:ffffc900010ff280 EFLAGS: 00010246 [ 52.072647][ T8422] RAX: 1b3b093b709ed400 RBX: ffff88814558c750 RCX: ffff888028c28000 [ 52.080907][ T8422] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 52.089007][ T8422] RBP: ffffc900010ff3b0 R08: ffffffff81660b82 R09: ffffed10173a9798 [ 52.097076][ T8422] R10: ffffed10173a9798 R11: 0000000000000000 R12: ffff888022926788 [ 52.105477][ T8422] R13: dffffc0000000000 R14: ffffc900010ff320 R15: 1ffff11004524cf1 [ 52.113813][ T8422] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 52.123210][ T8422] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.129836][ T8422] CR2: 0000000000480db8 CR3: 00000000379ba000 CR4: 00000000001506e0 [ 52.138036][ T8422] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.146453][ T8422] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.154838][ T8422] Call Trace: [ 52.158242][ T8422] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 52.164812][ T8422] ? submit_bio_noacct+0x11f0/0x11f0 [ 52.170351][ T8422] ? rcu_read_lock_sched_held+0x87/0x110 [ 52.176072][ T8422] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 52.182243][ T8422] submit_bio_noacct+0x92/0x11f0 [ 52.187350][ T8422] ? blk_put_request+0x20/0x20 [ 52.192151][ T8422] ? __bio_add_page+0x2e5/0x4d0 [ 52.197095][ T8422] ? bio_add_page+0x2e9/0x470 [ 52.201778][ T8422] submit_bio+0x2d7/0x540 [ 52.206246][ T8422] ? submit_bio_checks+0x1540/0x1540 [ 52.211606][ T8422] __block_write_full_page+0x8fb/0x10a0 [ 52.217284][ T8422] ? mark_buffer_write_io_error+0x340/0x340 [ 52.223272][ T8422] ? blkdev_direct_IO+0x140/0x140 [ 52.228326][ T8422] __writepage+0x60/0x120 [ 52.232676][ T8422] write_cache_pages+0x990/0xf10 [ 52.237835][ T8422] ? generic_writepages+0x150/0x150 [ 52.243122][ T8422] ? tag_pages_for_writeback+0x670/0x670 [ 52.248849][ T8422] ? locks_remove_file+0xf0e/0xfd0 [ 52.254133][ T8422] ? __filemap_fdatawrite_range+0x320/0x400 [ 52.260040][ T8422] generic_writepages+0xe4/0x150 [ 52.265073][ T8422] ? trace_wbc_writepage+0x270/0x270 [ 52.270457][ T8422] ? blkdev_readpage+0x20/0x20 [ 52.275292][ T8422] do_writepages+0x12e/0x2b0 [ 52.279893][ T8422] ? __writepage+0x120/0x120 [ 52.284551][ T8422] ? do_raw_spin_unlock+0x134/0x8a0 [ 52.289760][ T8422] ? I_BDEV+0x9/0x20 [ 52.294005][ T8422] ? wbc_attach_and_unlock_inode+0x14d/0x5d0 [ 52.300111][ T8422] __filemap_fdatawrite_range+0x32d/0x400 [ 52.306030][ T8422] ? filemap_check_errors+0x120/0x120 [ 52.311584][ T8422] ? __fsnotify_parent+0x483/0x670 [ 52.316801][ T8422] filemap_write_and_wait_range+0x62/0xe0 [ 52.322630][ T8422] blkdev_put+0xdd/0x810 [ 52.326973][ T8422] ? lockdep_hardirqs_on_prepare+0x3e2/0x750 [ 52.333029][ T8422] blkdev_close+0x7a/0xa0 [ 52.337366][ T8422] ? blkdev_open+0x2c0/0x2c0 [ 52.341956][ T8422] __fput+0x352/0x7b0 [ 52.346019][ T8422] task_work_run+0x146/0x1c0 [ 52.350704][ T8422] do_exit+0x72b/0x2510 [ 52.354949][ T8422] ? __context_tracking_enter+0xa5/0xf0 [ 52.360597][ T8422] ? mm_update_next_owner+0x6d0/0x6d0 [ 52.366047][ T8422] ? lockdep_hardirqs_on_prepare+0x3e2/0x750 [ 52.372042][ T8422] ? print_irqtrace_events+0x220/0x220 [ 52.378107][ T8422] ? vtime_user_exit+0x2b2/0x3e0 [ 52.383122][ T8422] do_group_exit+0x168/0x2d0 [ 52.387725][ T8422] ? syscall_enter_from_user_mode+0x2e/0x1b0 [ 52.393941][ T8422] __do_sys_exit_group+0x13/0x20 [ 52.398893][ T8422] __se_sys_exit_group+0x10/0x10 [ 52.403903][ T8422] __x64_sys_exit_group+0x37/0x40 [ 52.409052][ T8422] do_syscall_64+0x3d/0xb0 [ 52.413533][ T8422] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 52.419429][ T8422] RIP: 0033:0x43da59 [ 52.423377][ T8422] Code: Unable to access opcode bytes at RIP 0x43da2f. [ 52.430219][ T8422] RSP: 002b:00007ffeac07ef68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 52.438768][ T8422] RAX: ffffffffffffffda RBX: 00000000004ae230 RCX: 000000000043da59 [ 52.447097][ T8422] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 52.455228][ T8422] RBP: 0000000000000000 R08: ffffffffffffffc0 R09: 0000000000000000 [ 52.463304][ T8422] R10: 0000000000000003 R11: 0000000000000246 R12: 00000000004ae230 [ 52.471379][ T8422] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 52.479451][ T8422] Kernel panic - not syncing: panic_on_warn set ... [ 52.486033][ T8422] CPU: 1 PID: 8422 Comm: syz-executor169 Not tainted 5.14.0-rc1-syzkaller #0 [ 52.495054][ T8422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.505087][ T8422] Call Trace: [ 52.508349][ T8422] dump_stack_lvl+0x1ae/0x29f [ 52.513007][ T8422] ? show_regs_print_info+0x12/0x12 [ 52.518192][ T8422] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 52.524345][ T8422] panic+0x2e1/0x850 [ 52.528536][ T8422] ? __kernel_text_address+0x93/0x100 [ 52.534005][ T8422] ? __warn+0x13e/0x270 [ 52.538163][ T8422] ? nmi_panic+0x90/0x90 [ 52.542403][ T8422] __warn+0x26a/0x270 [ 52.546559][ T8422] ? submit_bio_checks+0x1044/0x1540 [ 52.551852][ T8422] ? submit_bio_checks+0x1044/0x1540 [ 52.557210][ T8422] report_bug+0x1b1/0x2e0 [ 52.561695][ T8422] handle_bug+0x3d/0x70 [ 52.565835][ T8422] exc_invalid_op+0x16/0x40 [ 52.570416][ T8422] asm_exc_invalid_op+0x12/0x20 [ 52.575245][ T8422] RIP: 0010:submit_bio_checks+0x1044/0x1540 [ 52.581126][ T8422] Code: 03 48 b9 00 00 00 00 00 fc ff df 8a 04 08 84 c0 0f 85 f1 04 00 00 0f b6 13 48 c7 c7 c0 08 91 8a 4c 89 f6 31 c0 e8 ec 99 5d fd <0f> 0b 49 bd 00 00 00 00 00 fc ff df 4c 8b 74 24 18 e9 ca f3 ff ff [ 52.600968][ T8422] RSP: 0018:ffffc900010ff280 EFLAGS: 00010246 [ 52.607036][ T8422] RAX: 1b3b093b709ed400 RBX: ffff88814558c750 RCX: ffff888028c28000 [ 52.615255][ T8422] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 52.623415][ T8422] RBP: ffffc900010ff3b0 R08: ffffffff81660b82 R09: ffffed10173a9798 [ 52.631463][ T8422] R10: ffffed10173a9798 R11: 0000000000000000 R12: ffff888022926788 [ 52.639521][ T8422] R13: dffffc0000000000 R14: ffffc900010ff320 R15: 1ffff11004524cf1 [ 52.647497][ T8422] ? wake_up_klogd+0xb2/0xf0 [ 52.652174][ T8422] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 52.658164][ T8422] ? submit_bio_noacct+0x11f0/0x11f0 [ 52.663429][ T8422] ? rcu_read_lock_sched_held+0x87/0x110 [ 52.669053][ T8422] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 52.675043][ T8422] submit_bio_noacct+0x92/0x11f0 [ 52.679995][ T8422] ? blk_put_request+0x20/0x20 [ 52.684748][ T8422] ? __bio_add_page+0x2e5/0x4d0 [ 52.689643][ T8422] ? bio_add_page+0x2e9/0x470 [ 52.694323][ T8422] submit_bio+0x2d7/0x540 [ 52.698640][ T8422] ? submit_bio_checks+0x1540/0x1540 [ 52.703911][ T8422] __block_write_full_page+0x8fb/0x10a0 [ 52.709562][ T8422] ? mark_buffer_write_io_error+0x340/0x340 [ 52.715457][ T8422] ? blkdev_direct_IO+0x140/0x140 [ 52.720481][ T8422] __writepage+0x60/0x120 [ 52.724905][ T8422] write_cache_pages+0x990/0xf10 [ 52.729845][ T8422] ? generic_writepages+0x150/0x150 [ 52.735023][ T8422] ? tag_pages_for_writeback+0x670/0x670 [ 52.740634][ T8422] ? locks_remove_file+0xf0e/0xfd0 [ 52.745783][ T8422] ? __filemap_fdatawrite_range+0x320/0x400 [ 52.751763][ T8422] generic_writepages+0xe4/0x150 [ 52.756693][ T8422] ? trace_wbc_writepage+0x270/0x270 [ 52.761968][ T8422] ? blkdev_readpage+0x20/0x20 [ 52.766812][ T8422] do_writepages+0x12e/0x2b0 [ 52.771402][ T8422] ? __writepage+0x120/0x120 [ 52.775984][ T8422] ? do_raw_spin_unlock+0x134/0x8a0 [ 52.781171][ T8422] ? I_BDEV+0x9/0x20 [ 52.785084][ T8422] ? wbc_attach_and_unlock_inode+0x14d/0x5d0 [ 52.791055][ T8422] __filemap_fdatawrite_range+0x32d/0x400 [ 52.796780][ T8422] ? filemap_check_errors+0x120/0x120 [ 52.802139][ T8422] ? __fsnotify_parent+0x483/0x670 [ 52.807249][ T8422] filemap_write_and_wait_range+0x62/0xe0 [ 52.812952][ T8422] blkdev_put+0xdd/0x810 [ 52.817175][ T8422] ? lockdep_hardirqs_on_prepare+0x3e2/0x750 [ 52.823396][ T8422] blkdev_close+0x7a/0xa0 [ 52.827713][ T8422] ? blkdev_open+0x2c0/0x2c0 [ 52.832289][ T8422] __fput+0x352/0x7b0 [ 52.836254][ T8422] task_work_run+0x146/0x1c0 [ 52.840828][ T8422] do_exit+0x72b/0x2510 [ 52.844985][ T8422] ? __context_tracking_enter+0xa5/0xf0 [ 52.850597][ T8422] ? mm_update_next_owner+0x6d0/0x6d0 [ 52.856067][ T8422] ? lockdep_hardirqs_on_prepare+0x3e2/0x750 [ 52.862041][ T8422] ? print_irqtrace_events+0x220/0x220 [ 52.867588][ T8422] ? vtime_user_exit+0x2b2/0x3e0 [ 52.872702][ T8422] do_group_exit+0x168/0x2d0 [ 52.877388][ T8422] ? syscall_enter_from_user_mode+0x2e/0x1b0 [ 52.883358][ T8422] __do_sys_exit_group+0x13/0x20 [ 52.888529][ T8422] __se_sys_exit_group+0x10/0x10 [ 52.893460][ T8422] __x64_sys_exit_group+0x37/0x40 [ 52.898503][ T8422] do_syscall_64+0x3d/0xb0 [ 52.903119][ T8422] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 52.909277][ T8422] RIP: 0033:0x43da59 [ 52.913162][ T8422] Code: Unable to access opcode bytes at RIP 0x43da2f. [ 52.920000][ T8422] RSP: 002b:00007ffeac07ef68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 52.928407][ T8422] RAX: ffffffffffffffda RBX: 00000000004ae230 RCX: 000000000043da59 [ 52.936646][ T8422] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 52.945229][ T8422] RBP: 0000000000000000 R08: ffffffffffffffc0 R09: 0000000000000000 [ 52.953205][ T8422] R10: 0000000000000003 R11: 0000000000000246 R12: 00000000004ae230 [ 52.961182][ T8422] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 52.971261][ T8422] Kernel Offset: disabled [ 52.975684][ T8422] Rebooting in 86400 seconds..