------------[ cut here ]------------
kernel BUG at fs/buffer.c:3027!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 575 Comm: syz-executor.4 Not tainted 5.4.278-syzkaller-04929-g8edc449e71a9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
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 00 8d ea ff e9 05 fe ff ff e8 c6 a6 ba ff 0f 0b e8 bf a6 ba ff <0f> 0b e8 b8 a6 ba ff 0f 0b e8 b1 a6 ba ff 0f 0b e8 aa a6 ba ff 0f
RSP: 0018:ffff8881e97476d0 EFLAGS: 00010293
RAX: ffffffff81a99201 RBX: 0000000000000000 RCX: ffff8881eae7bf00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000003000 R08: ffffffff81a98a74 R09: ffffed103b630694
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881db183498 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f2ed66426c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3cdcf31ca8 CR3: 00000001eb732000 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+0x5cf7/0x8d90 fs/ext4/super.c:4434
 mount_bdev+0x267/0x370 fs/super.c:1426
 legacy_get_tree+0xdf/0x170 fs/fs_context.c:648
 vfs_get_tree+0x85/0x260 fs/super.c:1556
 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
RIP: 0033:0x456ffa
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b4 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2ed6641ef8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f2ed6641f90 RCX: 0000000000456ffa
RDX: 0000000020000040 RSI: 0000000020000100 RDI: 00007f2ed6641f50
RBP: 0000000020000040 R08: 00007f2ed6641f90 R09: 0000000020000040
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000100
R13: 0000000020000580 R14: 00007f2ed6641f50 R15: 00000000200000c0
Modules linked in:
---[ end trace 185b861034340b25 ]---
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 00 8d ea ff e9 05 fe ff ff e8 c6 a6 ba ff 0f 0b e8 bf a6 ba ff <0f> 0b e8 b8 a6 ba ff 0f 0b e8 b1 a6 ba ff 0f 0b e8 aa a6 ba ff 0f
RSP: 0018:ffff8881e97476d0 EFLAGS: 00010293
RAX: ffffffff81a99201 RBX: 0000000000000000 RCX: ffff8881eae7bf00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000003000 R08: ffffffff81a98a74 R09: ffffed103b630694
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881db183498 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f2ed66426c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3cdcf31ca8 CR3: 00000001eb732000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400