------------[ cut here ]------------
Trying to write to read-only block-device sda1 (partno 1)
WARNING: CPU: 1 PID: 4838 at block/blk-core.c:705 bio_check_ro block/blk-core.c:705 [inline]
WARNING: CPU: 1 PID: 4838 at block/blk-core.c:705 blk_partition_remap block/blk-core.c:755 [inline]
WARNING: CPU: 1 PID: 4838 at block/blk-core.c:705 submit_bio_checks+0x1ba2/0x1fa0 block/blk-core.c:831
Modules linked in:
CPU: 1 PID: 4838 Comm: jbd2/sda1-8 Not tainted 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:bio_check_ro block/blk-core.c:705 [inline]
RIP: 0010:blk_partition_remap block/blk-core.c:755 [inline]
RIP: 0010:submit_bio_checks+0x1ba2/0x1fa0 block/blk-core.c:831
Code: 41 0f b6 97 e0 05 00 00 48 8d 74 24 50 48 89 ef 89 14 24 e8 50 37 fe ff 8b 14 24 48 c7 c7 60 79 9c 89 48 89 c6 e8 88 53 10 05 <0f> 0b 48 8d 55 28 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6
RSP: 0018:ffffc900093a77a8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88801bed4340 RCX: 0000000000000000
RDX: ffff8880250c8280 RSI: ffffffff815b7455 RDI: fffff52001274ee7
RBP: ffff88801c3c41c0 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815b05fe R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff92001274efb R14: ffff88801c3c41d0 R15: ffff888017b9f300
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5ea5c0e080 CR3: 000000001537f000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 submit_bio_noacct+0x81/0xe10 block/blk-core.c:1046
 submit_bio+0x263/0x5a0 block/blk-core.c:1131
 submit_bh_wbc+0x685/0x8e0 fs/buffer.c:3054
 jbd2_journal_commit_transaction+0x20d4/0x6b90 fs/jbd2/commit.c:775
 kjournald2+0x1d0/0x930 fs/jbd2/journal.c:213
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296