------------[ cut here ]------------
kernel BUG at fs/buffer.c:3027!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 1635 Comm: syz-executor.0 Not tainted 5.4.265-syzkaller-04843-g1b3143b9b166 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
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 30 a0 ea ff e9 05 fe ff ff e8 f6 cd ba ff 0f 0b e8 ef cd ba ff <0f> 0b e8 e8 cd ba ff 0f 0b e8 e1 cd ba ff 0f 0b e8 da cd ba ff 0f
RSP: 0018:ffff8881e8d5f820 EFLAGS: 00010293
RAX: ffffffff81a978d1 RBX: 0000000000000000 RCX: ffff8881eae5bf00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff81a97144 R09: ffffed1039e997ba
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881cf4cbdc8 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f3e0d2946c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f596a62bf68 CR3: 00000001ebdcc000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 submit_bh fs/buffer.c:3076 [inline]
 __bread_slow fs/buffer.c:1178 [inline]
 __bread_gfp+0x18e/0x330 fs/buffer.c:1371
 sb_bread include/linux/buffer_head.h:343 [inline]
 fat_fill_super+0x1b40/0x49c0 fs/fat/inode.c:1650
 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
Modules linked in:
---[ end trace 56f7ec60fd3126b6 ]---
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 30 a0 ea ff e9 05 fe ff ff e8 f6 cd ba ff 0f 0b e8 ef cd ba ff <0f> 0b e8 e8 cd ba ff 0f 0b e8 e1 cd ba ff 0f 0b e8 da cd ba ff 0f
RSP: 0018:ffff8881e8d5f820 EFLAGS: 00010293
RAX: ffffffff81a978d1 RBX: 0000000000000000 RCX: ffff8881eae5bf00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff81a97144 R09: ffffed1039e997ba
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881cf4cbdc8 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f3e0d2946c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563405762000 CR3: 00000001ebdcc000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400