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..