Warning: Permanently added '10.128.1.35' (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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 73.610178][ T447] ------------[ cut here ]------------ [ 73.616068][ T447] Trying to write to read-only block-device sda1 (partno 1) [ 73.624693][ T447] WARNING: CPU: 0 PID: 447 at block/blk-core.c:704 submit_bio_checks+0x165c/0x1aa0 [ 73.634894][ T447] Modules linked in: [ 73.640092][ T447] CPU: 1 PID: 447 Comm: kworker/u4:4 Not tainted 5.13.0-rc7-syzkaller #0 [ 73.649109][ T447] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 executing program [ 73.659719][ T447] Workqueue: writeback wb_workfn (flush-8:0) [ 73.665790][ T447] RIP: 0010:submit_bio_checks+0x165c/0x1aa0 [ 73.672708][ T447] Code: 00 00 45 0f b6 a4 24 e0 05 00 00 48 8d 74 24 60 48 89 ef e8 76 42 fe ff 48 c7 c7 a0 d9 c0 89 48 89 c6 44 89 e2 e8 3f 34 1c 05 <0f> 0b e9 36 f3 ff ff e8 e8 8f bb fd 0f 0b e9 bf f1 ff ff e8 dc 8f [ 73.693046][ T447] RSP: 0018:ffffc9000251f0d0 EFLAGS: 00010282 [ 73.699681][ T447] RAX: 0000000000000000 RBX: ffff88801f310000 RCX: 0000000000000000 executing program [ 73.718604][ T447] RDX: ffff888012593880 RSI: ffffffff815ce185 RDI: fffff520004a3e0c [ 73.726926][ T447] RBP: ffff88802d1e5500 R08: 0000000000000000 R09: 0000000000000000 [ 73.735387][ T447] R10: ffffffff815c7fee R11: 0000000000000000 R12: 0000000000000001 [ 73.743507][ T447] R13: ffff88802d1e5510 R14: ffff88801e105c00 R15: ffff88801f310504 [ 73.751953][ T447] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 73.761522][ T447] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.768115][ T447] CR2: 00007f896c03a128 CR3: 000000002cfe6000 CR4: 0000000000350ef0 [ 73.776832][ T447] Call Trace: [ 73.780200][ T447] ? trace_event_raw_event_block_rq_requeue+0x510/0x510 [ 73.787312][ T447] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 73.794597][ T447] ? mark_buffer_dirty+0x145/0x5d0 [ 73.799768][ T447] submit_bio_noacct+0x81/0xf20 [ 73.805095][ T447] ? __brelse+0x84/0xa0 [ 73.810306][ T447] ? ext4_mark_iloc_dirty+0x1c60/0x38c0 executing program [ 73.816242][ T447] ? blk_queue_enter+0xb50/0xb50 [ 73.821840][ T447] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 73.828076][ T447] ? ext4_reserve_inode_write+0x114/0x230 [ 73.835034][ T447] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 73.849629][ T447] ? mpage_release_unused_pages+0x5e1/0x880 [ 73.855627][ T447] submit_bio+0x263/0x5e0 [ 73.861950][ T447] ? submit_bio_noacct+0xf20/0xf20 executing program [ 73.868880][ T447] ? up_write+0x191/0x560 [ 73.873273][ T447] ? downgrade_write+0x3a0/0x3a0 [ 73.878199][ T447] ? down_write_killable+0x170/0x170 [ 73.886310][ T447] ext4_io_submit+0x181/0x210 [ 73.891559][ T447] ext4_writepages+0x1370/0x3b70 [ 73.896531][ T447] ? __ext4_mark_inode_dirty+0x8d0/0x8d0 [ 73.903222][ T447] ? __ext4_mark_inode_dirty+0x8d0/0x8d0 [ 73.909882][ T447] do_writepages+0xec/0x290 executing program [ 73.914404][ T447] ? writeback_set_ratelimit+0x150/0x150 [ 73.921754][ T447] ? lock_downgrade+0x6e0/0x6e0 [ 73.926702][ T447] ? writeback_sb_inodes+0x3a6/0xef0 [ 73.932845][ T447] __writeback_single_inode+0x126/0xfd0 [ 73.939235][ T447] ? wbc_attach_and_unlock_inode+0x117/0x9e0 [ 73.945209][ T447] writeback_sb_inodes+0x53d/0xef0 [ 73.951372][ T447] ? __writeback_single_inode+0xfd0/0xfd0 [ 73.957195][ T447] __writeback_inodes_wb+0xc6/0x280 [ 73.963031][ T447] wb_writeback+0x814/0xc40 [ 73.967539][ T447] ? __writeback_inodes_wb+0x280/0x280 [ 73.973964][ T447] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 73.981282][ T447] ? cpumask_next+0xa4/0xf0 [ 73.985883][ T447] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 73.992390][ T447] ? get_nr_dirty_inodes+0x16f/0x210 [ 73.997688][ T447] wb_workfn+0x891/0x12d0 [ 74.002894][ T447] ? inode_wait_for_writeback+0x30/0x30 [ 74.008818][ T447] ? lock_release+0x720/0x720 [ 74.013499][ T447] process_one_work+0x98d/0x1600 executing program [ 74.019470][ T447] ? pwq_dec_nr_in_flight+0x320/0x320 [ 74.025395][ T447] ? rwlock_bug.part.0+0x90/0x90 [ 74.031142][ T447] ? _raw_spin_lock_irq+0x41/0x50 [ 74.036168][ T447] worker_thread+0x64c/0x1120 [ 74.041835][ T447] ? process_one_work+0x1600/0x1600 [ 74.047056][ T447] kthread+0x3b1/0x4a0 [ 74.053420][ T447] ? __kthread_bind_mask+0xc0/0xc0 [ 74.059209][ T447] ret_from_fork+0x1f/0x30 [ 74.063901][ T447] Kernel panic - not syncing: panic_on_warn set ... executing program [ 74.070476][ T447] CPU: 0 PID: 447 Comm: kworker/u4:4 Not tainted 5.13.0-rc7-syzkaller #0 [ 74.079051][ T447] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.089297][ T447] Workqueue: writeback wb_workfn (flush-8:0) [ 74.095769][ T447] Call Trace: [ 74.099116][ T447] dump_stack+0x141/0x1d7 [ 74.103521][ T447] panic+0x306/0x73d [ 74.107417][ T447] ? __warn_printk+0xf3/0xf3 [ 74.112021][ T447] ? __warn.cold+0x1a/0x44 [ 74.116442][ T447] ? submit_bio_checks+0x165c/0x1aa0 [ 74.121727][ T447] __warn.cold+0x35/0x44 [ 74.126155][ T447] ? submit_bio_checks+0x165c/0x1aa0 [ 74.131443][ T447] report_bug+0x1bd/0x210 [ 74.135779][ T447] handle_bug+0x3c/0x60 [ 74.140107][ T447] exc_invalid_op+0x14/0x40 [ 74.144794][ T447] asm_exc_invalid_op+0x12/0x20 [ 74.149627][ T447] RIP: 0010:submit_bio_checks+0x165c/0x1aa0 executing program [ 74.155505][ T447] Code: 00 00 45 0f b6 a4 24 e0 05 00 00 48 8d 74 24 60 48 89 ef e8 76 42 fe ff 48 c7 c7 a0 d9 c0 89 48 89 c6 44 89 e2 e8 3f 34 1c 05 <0f> 0b e9 36 f3 ff ff e8 e8 8f bb fd 0f 0b e9 bf f1 ff ff e8 dc 8f [ 74.175279][ T447] RSP: 0018:ffffc9000251f0d0 EFLAGS: 00010282 [ 74.181350][ T447] RAX: 0000000000000000 RBX: ffff88801f310000 RCX: 0000000000000000 [ 74.189313][ T447] RDX: ffff888012593880 RSI: ffffffff815ce185 RDI: fffff520004a3e0c [ 74.197367][ T447] RBP: ffff88802d1e5500 R08: 0000000000000000 R09: 0000000000000000 [ 74.205678][ T447] R10: ffffffff815c7fee R11: 0000000000000000 R12: 0000000000000001 executing program [ 74.213718][ T447] R13: ffff88802d1e5510 R14: ffff88801e105c00 R15: ffff88801f310504 [ 74.221675][ T447] ? wake_up_klogd.part.0+0x8e/0xd0 [ 74.226863][ T447] ? vprintk+0x95/0x260 [ 74.231090][ T447] ? trace_event_raw_event_block_rq_requeue+0x510/0x510 [ 74.238367][ T447] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 74.244696][ T447] ? mark_buffer_dirty+0x145/0x5d0 [ 74.249816][ T447] submit_bio_noacct+0x81/0xf20 [ 74.254662][ T447] ? __brelse+0x84/0xa0 [ 74.258818][ T447] ? ext4_mark_iloc_dirty+0x1c60/0x38c0 [ 74.264365][ T447] ? blk_queue_enter+0xb50/0xb50 executing program [ 74.269307][ T447] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.275558][ T447] ? ext4_reserve_inode_write+0x114/0x230 [ 74.281277][ T447] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 74.287039][ T447] ? mpage_release_unused_pages+0x5e1/0x880 [ 74.293013][ T447] submit_bio+0x263/0x5e0 [ 74.297395][ T447] ? submit_bio_noacct+0xf20/0xf20 [ 74.302591][ T447] ? up_write+0x191/0x560 [ 74.306922][ T447] ? downgrade_write+0x3a0/0x3a0 [ 74.311846][ T447] ? down_write_killable+0x170/0x170 [ 74.317142][ T447] ext4_io_submit+0x181/0x210 [ 74.321839][ T447] ext4_writepages+0x1370/0x3b70 [ 74.326903][ T447] ? __ext4_mark_inode_dirty+0x8d0/0x8d0 [ 74.332589][ T447] ? __ext4_mark_inode_dirty+0x8d0/0x8d0 [ 74.338308][ T447] do_writepages+0xec/0x290 [ 74.342823][ T447] ? writeback_set_ratelimit+0x150/0x150 [ 74.348593][ T447] ? lock_downgrade+0x6e0/0x6e0 [ 74.353447][ T447] ? writeback_sb_inodes+0x3a6/0xef0 [ 74.358723][ T447] __writeback_single_inode+0x126/0xfd0 [ 74.364255][ T447] ? wbc_attach_and_unlock_inode+0x117/0x9e0 [ 74.370228][ T447] writeback_sb_inodes+0x53d/0xef0 [ 74.375348][ T447] ? __writeback_single_inode+0xfd0/0xfd0 [ 74.381089][ T447] __writeback_inodes_wb+0xc6/0x280 [ 74.386314][ T447] wb_writeback+0x814/0xc40 [ 74.390837][ T447] ? __writeback_inodes_wb+0x280/0x280 [ 74.396566][ T447] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 74.402817][ T447] ? cpumask_next+0xa4/0xf0 [ 74.407337][ T447] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 74.413076][ T447] ? get_nr_dirty_inodes+0x16f/0x210 [ 74.418659][ T447] wb_workfn+0x891/0x12d0 [ 74.422996][ T447] ? inode_wait_for_writeback+0x30/0x30 [ 74.428532][ T447] ? lock_release+0x720/0x720 [ 74.433203][ T447] process_one_work+0x98d/0x1600 [ 74.438130][ T447] ? pwq_dec_nr_in_flight+0x320/0x320 [ 74.443576][ T447] ? rwlock_bug.part.0+0x90/0x90 [ 74.448493][ T447] ? _raw_spin_lock_irq+0x41/0x50 [ 74.453691][ T447] worker_thread+0x64c/0x1120 [ 74.458383][ T447] ? process_one_work+0x1600/0x1600 [ 74.463762][ T447] kthread+0x3b1/0x4a0 [ 74.467830][ T447] ? __kthread_bind_mask+0xc0/0xc0 [ 74.472941][ T447] ret_from_fork+0x1f/0x30 [ 74.483033][ T447] Kernel Offset: disabled [ 74.487421][ T447] Rebooting in 86400 seconds..