Warning: Permanently added '10.128.0.60' (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 syzkaller login: [ 60.164933][ T6863] ------------[ cut here ]------------ [ 60.173782][ T6863] Trying to write to read-only block-device loop0 (partno 0) [ 60.185181][ T6863] WARNING: CPU: 1 PID: 6863 at block/blk-core.c:857 submit_bio_checks+0x1aba/0x1f70 [ 60.200552][ T6863] Kernel panic - not syncing: panic_on_warn set ... executing program executing program [ 60.207175][ T6863] CPU: 1 PID: 6863 Comm: syz-executor505 Not tainted 5.9.0-rc1-syzkaller #0 [ 60.215850][ T6863] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.226698][ T6863] Call Trace: [ 60.229996][ T6863] dump_stack+0x18f/0x20d [ 60.234338][ T6863] panic+0x2e3/0x75c [ 60.242514][ T6863] ? __warn_printk+0xf3/0xf3 [ 60.247162][ T6863] ? __warn.cold+0x5/0x4a [ 60.251504][ T6863] ? __warn+0xd6/0x1f2 [ 60.255625][ T6863] ? submit_bio_checks+0x1aba/0x1f70 [ 60.260923][ T6863] __warn.cold+0x20/0x4a executing program executing program executing program executing program executing program executing program executing program [ 60.265171][ T6863] ? wake_up_klogd.part.0+0x8c/0xc0 [ 60.270379][ T6863] ? submit_bio_checks+0x1aba/0x1f70 [ 60.275672][ T6863] report_bug+0x1bd/0x210 [ 60.280097][ T6863] handle_bug+0x38/0x90 [ 60.284266][ T6863] exc_invalid_op+0x14/0x40 [ 60.288773][ T6863] asm_exc_invalid_op+0x12/0x20 [ 60.293716][ T6863] RIP: 0010:submit_bio_checks+0x1aba/0x1f70 [ 60.299612][ T6863] Code: 04 00 00 45 8b a4 24 a4 05 00 00 48 8d 74 24 68 48 89 ef e8 f8 21 fe ff 48 c7 c7 c0 20 92 88 48 89 c6 44 89 e2 e8 08 23 bf fd <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 [ 60.319638][ T6863] RSP: 0018:ffffc900056b7328 EFLAGS: 00010282 [ 60.325706][ T6863] RAX: 0000000000000000 RBX: ffff8880a2f1b040 RCX: 0000000000000000 [ 60.333682][ T6863] RDX: ffff888094246400 RSI: ffffffff815dafc7 RDI: fffff52000ad6e57 [ 60.341660][ T6863] RBP: ffff88809f458c80 R08: 0000000000000001 R09: ffff8880ae7318e7 [ 60.349637][ T6863] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 60.357612][ T6863] R13: ffff88809f458c88 R14: 0000000000000000 R15: ffff88809f458ca8 [ 60.365606][ T6863] ? vprintk_func+0x97/0x1a6 [ 60.370215][ T6863] ? submit_bio_checks+0x1aba/0x1f70 [ 60.375509][ T6863] ? mark_lock+0xbc/0x1710 [ 60.379940][ T6863] ? blk_update_request+0x1230/0x1230 [ 60.385325][ T6863] ? __lock_acquire+0xbb5/0x5640 [ 60.390287][ T6863] submit_bio_noacct+0x89/0x12b0 [ 60.395339][ T6863] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 60.401334][ T6863] ? blk_queue_enter+0xcd0/0xcd0 [ 60.406284][ T6863] ? find_held_lock+0x2d/0x110 [ 60.411299][ T6863] ? bio_associate_blkg_from_css+0x5f3/0x1080 [ 60.417380][ T6863] ? lock_acquire+0x1f1/0xad0 [ 60.422073][ T6863] ? bio_truncate+0x70/0x70 [ 60.426590][ T6863] submit_bio+0x263/0x5b0 [ 60.431026][ T6863] ? submit_bio_noacct+0x12b0/0x12b0 [ 60.436350][ T6863] ? lock_is_held_type+0xbb/0xf0 [ 60.441310][ T6863] submit_bh_wbc+0x685/0x8e0 [ 60.445918][ T6863] __block_write_full_page+0x837/0x12e0 [ 60.451474][ T6863] ? bdev_evict_inode+0x410/0x410 [ 60.456517][ T6863] block_write_full_page+0x214/0x270 [ 60.461861][ T6863] ? bdev_evict_inode+0x410/0x410 [ 60.466932][ T6863] __writepage+0x60/0x170 [ 60.471281][ T6863] write_cache_pages+0x736/0x11b0 [ 60.476320][ T6863] ? tag_pages_for_writeback+0x420/0x420 [ 60.482004][ T6863] ? clear_page_dirty_for_io+0x920/0x920 [ 60.487649][ T6863] ? do_group_exit+0x125/0x310 [ 60.493119][ T6863] ? __do_fast_syscall_32+0x57/0x80 [ 60.498328][ T6863] ? find_held_lock+0x2d/0x110 [ 60.503107][ T6863] ? __lock_acquire+0x16cb/0x5640 [ 60.508147][ T6863] ? blkdev_readahead+0x20/0x20 [ 60.513004][ T6863] generic_writepages+0xe2/0x150 [ 60.517950][ T6863] ? write_cache_pages+0x11b0/0x11b0 [ 60.523251][ T6863] ? find_held_lock+0x2d/0x110 [ 60.528029][ T6863] ? wbc_attach_and_unlock_inode+0x11d/0x9d0 [ 60.534021][ T6863] do_writepages+0xec/0x290 [ 60.538546][ T6863] ? writeback_set_ratelimit+0x150/0x150 [ 60.544181][ T6863] ? do_raw_spin_lock+0x120/0x2b0 [ 60.549301][ T6863] ? do_raw_spin_unlock+0x171/0x230 [ 60.554514][ T6863] ? _raw_spin_unlock+0x24/0x40 [ 60.559377][ T6863] ? wbc_attach_and_unlock_inode+0x11d/0x9d0 [ 60.565365][ T6863] __filemap_fdatawrite_range+0x2a1/0x380 [ 60.571093][ T6863] ? lock_is_held_type+0xbb/0xf0 [ 60.576047][ T6863] ? delete_from_page_cache_batch+0xe20/0xe20 [ 60.582221][ T6863] ? lock_downgrade+0x830/0x830 [ 60.587086][ T6863] ? lock_acquire+0x1f1/0xad0 [ 60.591771][ T6863] filemap_write_and_wait_range+0xe1/0x1c0 [ 60.597583][ T6863] __blkdev_put+0x69a/0x890 [ 60.602226][ T6863] ? do_raw_spin_lock+0x120/0x2b0 [ 60.607258][ T6863] ? fsync_bdev+0xd0/0xd0 [ 60.611593][ T6863] ? locks_remove_file+0x319/0x580 [ 60.616715][ T6863] ? blkdev_put+0x85/0x520 [ 60.621142][ T6863] blkdev_close+0x8c/0xb0 [ 60.625473][ T6863] __fput+0x285/0x920 [ 60.629464][ T6863] ? blkdev_put+0x520/0x520 [ 60.633979][ T6863] task_work_run+0xdd/0x190 [ 60.638491][ T6863] do_exit+0xb7d/0x29f0 [ 60.642662][ T6863] ? mm_update_next_owner+0x7a0/0x7a0 [ 60.648053][ T6863] ? lock_is_held_type+0xbb/0xf0 [ 60.653010][ T6863] do_group_exit+0x125/0x310 [ 60.657606][ T6863] __ia32_sys_exit_group+0x3a/0x50 [ 60.662729][ T6863] __do_fast_syscall_32+0x57/0x80 [ 60.667760][ T6863] do_fast_syscall_32+0x2f/0x70 [ 60.672621][ T6863] entry_SYSENTER_compat_after_hwframe+0x4d/0x5c [ 60.678942][ T6863] RIP: 0023:0xf7fb4549 [ 60.683000][ T6863] Code: Bad RIP value. [ 60.687065][ T6863] RSP: 002b:00000000ff9dc9bc EFLAGS: 00000296 ORIG_RAX: 00000000000000fc [ 60.695564][ T6863] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000080f12d8 [ 60.703535][ T6863] RDX: 0000000000000000 RSI: 00000000080daddc RDI: 00000000080f12e0 [ 60.711509][ T6863] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 60.719479][ T6863] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 60.727456][ T6863] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 60.736901][ T6863] Kernel Offset: disabled [ 60.741277][ T6863] Rebooting in 86400 seconds..