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kernel BUG at fs/buffer.c:3027!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 324 Comm: kmmpd-loop5 Not tainted 5.4.225-syzkaller-00003-gf4e4be09c27c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
RIP: 0010:submit_bh_wbc+0x779/0x7a0 fs/buffer.c:3027
Code: 08 80 e1 07 80 c1 03 38 c1 0f 8c c8 fe ff ff 48 8b 7c 24 08 e8 68 ed ed ff e9 b9 fe ff ff e8 2e 6c c0 ff 0f 0b e8 27 6c c0 ff <0f> 0b e8 20 6c c0 ff 0f 0b e8 19 6c c0 ff 0f 0b e8 12 6c c0 ff 0f
RSP: 0018:ffff8881dc4afc08 EFLAGS: 00010293
RAX: ffffffff81a2cad9 RBX: 0000000000000000 RCX: ffff8881dcfb2f40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff1103ccdc93b R08: ffffffff81a2c3f9 R09: ffffed103ccdc93c
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff8881e66e49d8 R14: dffffc0000000000 R15: 0000000000003800
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7c06868808 CR3: 00000001e82fb000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 submit_bh+0x21/0x30 fs/buffer.c:3076
 write_mmp_block+0x3ff/0x5b0 fs/ext4/mmp.c:55
 kmmpd+0x34f/0xa10 fs/ext4/mmp.c:171
 kthread+0x2da/0x360 kernel/kthread.c:288
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:354
Modules linked in:
---[ end trace 9e9ec3d195d66c20 ]---
RIP: 0010:submit_bh_wbc+0x779/0x7a0 fs/buffer.c:3027
Code: 08 80 e1 07 80 c1 03 38 c1 0f 8c c8 fe ff ff 48 8b 7c 24 08 e8 68 ed ed ff e9 b9 fe ff ff e8 2e 6c c0 ff 0f 0b e8 27 6c c0 ff <0f> 0b e8 20 6c c0 ff 0f 0b e8 19 6c c0 ff 0f 0b e8 12 6c c0 ff 0f
RSP: 0018:ffff8881dc4afc08 EFLAGS: 00010293
RAX: ffffffff81a2cad9 RBX: 0000000000000000 RCX: ffff8881dcfb2f40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff1103ccdc93b R08: ffffffff81a2c3f9 R09: ffffed103ccdc93c
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff8881e66e49d8 R14: dffffc0000000000 R15: 0000000000003800
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcec87dd68 CR3: 00000001edc77000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400