EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue ------------[ cut here ]------------ Trying to write to read-only block-device loop3 (partno 0) WARNING: CPU: 0 PID: 4520 at block/blk-core.c:705 bio_check_ro block/blk-core.c:705 [inline] WARNING: CPU: 0 PID: 4520 at block/blk-core.c:705 submit_bio_checks+0x1511/0x1850 block/blk-core.c:833 Modules linked in: CPU: 0 PID: 4520 Comm: syz-executor.3 Not tainted 5.10.60 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:bio_check_ro block/blk-core.c:705 [inline] RIP: 0010:submit_bio_checks+0x1511/0x1850 block/blk-core.c:833 Code: 02 00 00 45 8b a4 24 a4 05 00 00 48 89 ef 48 8d 74 24 50 e8 f1 41 fe ff 48 c7 c7 40 5a 3a 84 48 89 c6 44 89 e2 e8 8e 85 e7 01 <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 80 3c 02 RSP: 0018:ffff888045827298 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 1ffff11008b04e59 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff812912c3 RDI: ffffed1008b04e45 RBP: ffff88801cb49d00 R08: 0000000000000001 R09: ffff88806ce2fb4f R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88800ee20c10 R14: ffff88801cb49d10 R15: ffff88801cb49d08 FS: 00007f2bbed30700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7b15f14590 CR3: 0000000037fba000 CR4: 0000000000350ef0 Call Trace: submit_bio_noacct+0x7e/0xcf0 block/blk-core.c:1045 submit_bio+0x2f3/0x4e0 block/blk-core.c:1130 ext4_io_submit+0x17c/0x210 fs/ext4/page-io.c:382 ext4_writepages+0x1583/0x36e0 fs/ext4/inode.c:2821 do_writepages+0xfc/0x2a0 mm/page-writeback.c:2352 __filemap_fdatawrite_range+0x247/0x2f0 mm/filemap.c:422 file_write_and_wait_range+0xb2/0x120 mm/filemap.c:761 ext4_sync_file+0x225/0xf30 fs/ext4/fsync.c:151 vfs_fsync_range+0x13d/0x220 fs/sync.c:200 generic_write_sync include/linux/fs.h:2739 [inline] ext4_buffered_write_iter+0x36a/0x4d0 fs/ext4/file.c:278 ext4_file_write_iter+0x3c0/0x18b0 fs/ext4/file.c:681 call_write_iter include/linux/fs.h:1903 [inline] new_sync_write+0x427/0x650 fs/read_write.c:518 vfs_write+0x759/0xa50 fs/read_write.c:605 ksys_write+0x12d/0x250 fs/read_write.c:658 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x466609 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2bbed30188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 0000000000466609 RDX: 0000000000000010 RSI: 0000000020000440 RDI: 0000000000000003 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffe6e493bbf R14: 00007f2bbed30300 R15: 0000000000022000 irq event stamp: 4339 hardirqs last enabled at (4349): [] console_unlock+0x926/0xb30 kernel/printk/printk.c:2552 hardirqs last disabled at (4358): [] console_unlock+0x832/0xb30 kernel/printk/printk.c:2467 softirqs last enabled at (4078): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (4001): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace 5f6e80d2272beb18 ]---