------------[ cut here ]------------
Trying to write to read-only block-device sda1 (partno 1)
WARNING: CPU: 0 PID: 4804 at block/blk-core.c:706 bio_check_ro block/blk-core.c:704 [inline]
WARNING: CPU: 0 PID: 4804 at block/blk-core.c:706 submit_bio_checks+0x110b/0x1600 block/blk-core.c:817
Modules linked in:
CPU: 1 PID: 4804 Comm: jbd2/sda1-8 Not tainted 5.12.0-rc1-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:704 [inline]
RIP: 0010:submit_bio_checks+0x110b/0x1600 block/blk-core.c:817
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 a0 e8 0b 8a 4c 89 f6 31 c0 e8 15 ab 90 fd <0f> 0b 4c 8b 6c 24 10 49 be 00 00 00 00 00 fc ff df e9 bd f2 ff ff
RSP: 0018:ffffc9000b11f900 EFLAGS: 00010246
RAX: 9ab737cbee47ca00 RBX: ffff888016adf8e0 RCX: ffff888022943780
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc9000b11f9c0 R08: ffffffff81602402 R09: ffffed1017385fe8
R10: ffffed1017385fe8 R11: 0000000000000000 R12: ffff88801cca73c8
R13: ffff88801cca73c0 R14: ffffc9000b11f960 R15: 1ffff11003994e79
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7965117000 CR3: 00000000264e8000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 submit_bio_noacct+0x36/0x1020 block/blk-core.c:1032
 submit_bio+0x1a4/0x640 block/blk-core.c:1118
 submit_bh+0x21/0x30 fs/buffer.c:3061
 jbd2_journal_commit_transaction+0x25db/0x5ac0 fs/jbd2/commit.c:775
 kjournald2+0x432/0x8a0 fs/jbd2/journal.c:213
 kthread+0x39a/0x3c0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294