Warning: Permanently added '10.128.0.177' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 54.682687][ T8356] ------------[ cut here ]------------ [ 54.688180][ T8356] Trying to write to read-only block-device nullb0 (partno 0) [ 54.697054][ T8356] WARNING: CPU: 1 PID: 8356 at block/blk-core.c:706 submit_bio_checks+0x110b/0x1600 [ 54.707132][ T8356] Modules linked in: [ 54.711129][ T8356] CPU: 1 PID: 8356 Comm: syz-executor043 Not tainted 5.12.0-rc5-syzkaller #0 [ 54.719951][ T8356] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.730274][ T8356] RIP: 0010:submit_bio_checks+0x110b/0x1600 [ 54.736189][ T8356] Code: 03 48 b9 00 00 00 00 00 fc ff df 8a 04 08 84 c0 0f 85 e8 04 00 00 0f b6 13 48 c7 c7 60 3a 0f 8a 4c 89 f6 31 c0 e8 05 ee 88 fd <0f> 0b 4c 8b 6c 24 10 49 be 00 00 00 00 00 fc ff df e9 bd f2 ff ff [ 54.755863][ T8356] RSP: 0018:ffffc90000edf5d0 EFLAGS: 00010246 [ 54.762038][ T8356] RAX: 8680f4924d007b00 RBX: ffff88801a07bf60 RCX: ffff888016f61c40 [ 54.770106][ T8356] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 54.778219][ T8356] RBP: ffffc90000edf690 R08: ffffffff8160b612 R09: ffffed10173a5fe8 [ 54.786357][ T8356] R10: ffffed10173a5fe8 R11: 0000000000000000 R12: ffff88801c8cf148 [ 54.794409][ T8356] R13: ffff88801c8cf140 R14: ffffc90000edf630 R15: 1ffff11003919e29 [ 54.802441][ T8356] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 54.811438][ T8356] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.818025][ T8356] CR2: 00007f3be69bf6c0 CR3: 0000000021169000 CR4: 00000000001506e0 [ 54.826040][ T8356] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.834088][ T8356] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.842141][ T8356] Call Trace: [ 54.845429][ T8356] submit_bio_noacct+0x36/0x1020 [ 54.850426][ T8356] ? bio_add_page+0x2e9/0x470 [ 54.855106][ T8356] ? rcu_lock_release+0x5/0x20 [ 54.860142][ T8356] submit_bio+0x1a4/0x640 [ 54.864487][ T8356] __block_write_full_page+0x8fb/0x10a0 [ 54.870110][ T8356] ? mark_buffer_write_io_error+0x340/0x340 [ 54.876027][ T8356] ? blkdev_direct_IO+0x150/0x150 [ 54.881123][ T8356] __writepage+0x60/0x120 [ 54.885459][ T8356] write_cache_pages+0x8b7/0xdc0 [ 54.890478][ T8356] ? generic_writepages+0xd0/0xd0 [ 54.895510][ T8356] generic_writepages+0x8f/0xd0 [ 54.900430][ T8356] ? blkdev_readpage+0x20/0x20 [ 54.905224][ T8356] do_writepages+0xda/0x1f0 [ 54.909777][ T8356] ? __filemap_fdatawrite_range+0x299/0x350 [ 54.915688][ T8356] __filemap_fdatawrite_range+0x2a4/0x350 [ 54.921550][ T8356] filemap_write_and_wait_range+0xca/0x160 [ 54.927363][ T8356] __blkdev_put+0x103/0x670 [ 54.931940][ T8356] ? __mutex_unlock_slowpath+0x12d/0x520 [ 54.937576][ T8356] blkdev_put+0x2cd/0x440 [ 54.941966][ T8356] blkdev_close+0x7a/0xa0 [ 54.946293][ T8356] ? blkdev_open+0x2c0/0x2c0 [ 54.950969][ T8356] __fput+0x352/0x7b0 [ 54.954975][ T8356] task_work_run+0x146/0x1c0 [ 54.959622][ T8356] do_exit+0x6b2/0x2290 [ 54.963780][ T8356] ? __context_tracking_exit+0x7a/0xd0 [ 54.969316][ T8356] do_group_exit+0x168/0x2d0 [ 54.973908][ T8356] ? syscall_enter_from_user_mode+0x2e/0x1c0 [ 54.979945][ T8356] __do_sys_exit_group+0x13/0x20 [ 54.984885][ T8356] __se_sys_exit_group+0x10/0x10 [ 54.989870][ T8356] __x64_sys_exit_group+0x37/0x40 [ 54.994905][ T8356] do_syscall_64+0x2d/0x70 [ 54.999374][ T8356] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 55.005297][ T8356] RIP: 0033:0x43da99 [ 55.009267][ T8356] Code: Unable to access opcode bytes at RIP 0x43da6f. [ 55.016121][ T8356] RSP: 002b:00007ffcc0b74548 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 55.024603][ T8356] RAX: ffffffffffffffda RBX: 00000000004ae230 RCX: 000000000043da99 [ 55.032656][ T8356] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 55.040771][ T8356] RBP: 0000000000000000 R08: ffffffffffffffc0 R09: 0000000000400488 [ 55.048751][ T8356] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004ae230 [ 55.056806][ T8356] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 55.064902][ T8356] Kernel panic - not syncing: panic_on_warn set ... [ 55.071475][ T8356] CPU: 1 PID: 8356 Comm: syz-executor043 Not tainted 5.12.0-rc5-syzkaller #0 [ 55.080231][ T8356] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.090267][ T8356] Call Trace: [ 55.093532][ T8356] dump_stack+0x176/0x24e [ 55.097848][ T8356] panic+0x291/0x800 [ 55.101724][ T8356] ? __warn+0x13e/0x270 [ 55.105861][ T8356] __warn+0x26a/0x270 [ 55.109822][ T8356] ? submit_bio_checks+0x110b/0x1600 [ 55.115091][ T8356] ? submit_bio_checks+0x110b/0x1600 [ 55.120373][ T8356] report_bug+0x1b1/0x2e0 [ 55.124691][ T8356] handle_bug+0x3d/0x70 [ 55.128831][ T8356] exc_invalid_op+0x16/0x40 [ 55.133312][ T8356] asm_exc_invalid_op+0x12/0x20 [ 55.138153][ T8356] RIP: 0010:submit_bio_checks+0x110b/0x1600 [ 55.144031][ T8356] Code: 03 48 b9 00 00 00 00 00 fc ff df 8a 04 08 84 c0 0f 85 e8 04 00 00 0f b6 13 48 c7 c7 60 3a 0f 8a 4c 89 f6 31 c0 e8 05 ee 88 fd <0f> 0b 4c 8b 6c 24 10 49 be 00 00 00 00 00 fc ff df e9 bd f2 ff ff [ 55.163620][ T8356] RSP: 0018:ffffc90000edf5d0 EFLAGS: 00010246 [ 55.169696][ T8356] RAX: 8680f4924d007b00 RBX: ffff88801a07bf60 RCX: ffff888016f61c40 [ 55.177670][ T8356] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 55.185631][ T8356] RBP: ffffc90000edf690 R08: ffffffff8160b612 R09: ffffed10173a5fe8 [ 55.193590][ T8356] R10: ffffed10173a5fe8 R11: 0000000000000000 R12: ffff88801c8cf148 [ 55.201545][ T8356] R13: ffff88801c8cf140 R14: ffffc90000edf630 R15: 1ffff11003919e29 [ 55.209508][ T8356] ? wake_up_klogd+0xb2/0xf0 [ 55.214106][ T8356] submit_bio_noacct+0x36/0x1020 [ 55.219032][ T8356] ? bio_add_page+0x2e9/0x470 [ 55.223697][ T8356] ? rcu_lock_release+0x5/0x20 [ 55.228451][ T8356] submit_bio+0x1a4/0x640 [ 55.232773][ T8356] __block_write_full_page+0x8fb/0x10a0 [ 55.238322][ T8356] ? mark_buffer_write_io_error+0x340/0x340 [ 55.244201][ T8356] ? blkdev_direct_IO+0x150/0x150 [ 55.249213][ T8356] __writepage+0x60/0x120 [ 55.253528][ T8356] write_cache_pages+0x8b7/0xdc0 [ 55.258455][ T8356] ? generic_writepages+0xd0/0xd0 [ 55.263473][ T8356] generic_writepages+0x8f/0xd0 [ 55.268311][ T8356] ? blkdev_readpage+0x20/0x20 [ 55.273056][ T8356] do_writepages+0xda/0x1f0 [ 55.277543][ T8356] ? __filemap_fdatawrite_range+0x299/0x350 [ 55.283433][ T8356] __filemap_fdatawrite_range+0x2a4/0x350 [ 55.289145][ T8356] filemap_write_and_wait_range+0xca/0x160 [ 55.294942][ T8356] __blkdev_put+0x103/0x670 [ 55.299432][ T8356] ? __mutex_unlock_slowpath+0x12d/0x520 [ 55.305056][ T8356] blkdev_put+0x2cd/0x440 [ 55.309373][ T8356] blkdev_close+0x7a/0xa0 [ 55.313685][ T8356] ? blkdev_open+0x2c0/0x2c0 [ 55.318260][ T8356] __fput+0x352/0x7b0 [ 55.322231][ T8356] task_work_run+0x146/0x1c0 [ 55.326807][ T8356] do_exit+0x6b2/0x2290 [ 55.330952][ T8356] ? __context_tracking_exit+0x7a/0xd0 [ 55.336399][ T8356] do_group_exit+0x168/0x2d0 [ 55.340970][ T8356] ? syscall_enter_from_user_mode+0x2e/0x1c0 [ 55.346935][ T8356] __do_sys_exit_group+0x13/0x20 [ 55.351856][ T8356] __se_sys_exit_group+0x10/0x10 [ 55.356775][ T8356] __x64_sys_exit_group+0x37/0x40 [ 55.361781][ T8356] do_syscall_64+0x2d/0x70 [ 55.366186][ T8356] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 55.372062][ T8356] RIP: 0033:0x43da99 [ 55.375944][ T8356] Code: Unable to access opcode bytes at RIP 0x43da6f. [ 55.382768][ T8356] RSP: 002b:00007ffcc0b74548 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 55.391173][ T8356] RAX: ffffffffffffffda RBX: 00000000004ae230 RCX: 000000000043da99 [ 55.399130][ T8356] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 55.407085][ T8356] RBP: 0000000000000000 R08: ffffffffffffffc0 R09: 0000000000400488 [ 55.415040][ T8356] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004ae230 [ 55.422996][ T8356] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 55.431803][ T8356] Kernel Offset: disabled [ 55.436216][ T8356] Rebooting in 86400 seconds..