------------[ cut here ]------------
kernel BUG at fs/buffer.c:3027!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 446 Comm: syz-executor.0 Not tainted 5.4.242-syzkaller-00065-g10e0626a3202 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:submit_bh_wbc+0x831/0x850 fs/buffer.c:3027
Code: 10 80 e1 07 80 c1 03 38 c1 0f 8c 14 fe ff ff 48 8b 7c 24 10 e8 f0 a4 ea ff e9 05 fe ff ff e8 36 eb ba ff 0f 0b e8 2f eb ba ff <0f> 0b e8 28 eb ba ff 0f 0b e8 21 eb ba ff 0f 0b e8 1a eb ba ff 0f
RSP: 0018:ffff8881ec4976d0 EFLAGS: 00010293
RAX: ffffffff81a93eb1 RBX: 0000000000000000 RCX: ffff8881ed132f40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000003000 R08: ffffffff81a93724 R09: ffffed103bb151a5
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881dd8a8d20 R14: 0000000000000000 R15: 0000000000000000
FS:  00007feb28763700(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020013800 CR3: 00000001ed161000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 submit_bh+0x21/0x30 fs/buffer.c:3076
 read_mmp_block+0x1a2/0x8a0 fs/ext4/mmp.c:91
 ext4_multi_mount_protect+0x5e1/0xa50 fs/ext4/mmp.c:358
 ext4_fill_super+0x5cc2/0x8d70 fs/ext4/super.c:4434
 mount_bdev+0x22e/0x340 fs/super.c:1417
 legacy_get_tree+0xdf/0x170 fs/fs_context.c:647
 vfs_get_tree+0x85/0x260 fs/super.c:1547
 do_new_mount+0x292/0x570 fs/namespace.c:2843
 do_mount+0x688/0xe10 fs/namespace.c:3163
 ksys_mount+0xc2/0xf0 fs/namespace.c:3372
 __do_sys_mount fs/namespace.c:3386 [inline]
 __se_sys_mount fs/namespace.c:3383 [inline]
 __x64_sys_mount+0xb1/0xc0 fs/namespace.c:3383
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
Modules linked in:
---[ end trace 6d02436a300c96d9 ]---
RIP: 0010:submit_bh_wbc+0x831/0x850 fs/buffer.c:3027
Code: 10 80 e1 07 80 c1 03 38 c1 0f 8c 14 fe ff ff 48 8b 7c 24 10 e8 f0 a4 ea ff e9 05 fe ff ff e8 36 eb ba ff 0f 0b e8 2f eb ba ff <0f> 0b e8 28 eb ba ff 0f 0b e8 21 eb ba ff 0f 0b e8 1a eb ba ff 0f
RSP: 0018:ffff8881ec4976d0 EFLAGS: 00010293
RAX: ffffffff81a93eb1 RBX: 0000000000000000 RCX: ffff8881ed132f40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000003000 R08: ffffffff81a93724 R09: ffffed103bb151a5
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881dd8a8d20 R14: 0000000000000000 R15: 0000000000000000
FS:  00007feb28763700(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020013800 CR3: 00000001ed161000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400