syzbot

loop0: detected capacity change from 0 to 32768
------------[ cut here ]------------
kernel BUG at fs/ocfs2/inode.c:414!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 5979 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:ocfs2_populate_inode+0x17bb/0x17d0 fs/ocfs2/inode.c:414
Code: c7 80 d6 e2 8d be 04 00 00 00 e8 80 d3 f2 fd 65 49 ff 44 24 08 48 8b 5c 24 10 4c 8b 64 24 20 e9 9d f1 ff ff e8 a6 4c 0e fe 90 <0f> 0b e8 9e 4c 0e fe 90 0f 0b 90 e9 96 fe ff ff 0f 1f 44 00 00 90
RSP: 0018:ffffc90004336a80 EFLAGS: 00010293
RAX: ffffffff83b6063a RBX: ffff88805bab8a08 RCX: ffff88802df75ac0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004336bb0 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1ed44b7 R12: ffff888048e47a2c
R13: dffffc0000000000 R14: 0000000000000020 R15: 0000000000000000
FS:  0000555567bff500(0000) GS:ffff888126443000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff3032eb1a9 CR3: 0000000035c44000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ocfs2_read_locked_inode fs/ocfs2/inode.c:620 [inline]
 ocfs2_iget+0xe22/0x1c20 fs/ocfs2/inode.c:157
 _ocfs2_get_system_file_inode fs/ocfs2/sysfile.c:142 [inline]
 ocfs2_get_system_file_inode+0x360/0x7e0 fs/ocfs2/sysfile.c:112
 ocfs2_init_global_system_inodes+0x2f6/0x6e0 fs/ocfs2/super.c:461
 ocfs2_initialize_super fs/ocfs2/super.c:2196 [inline]
 ocfs2_fill_super+0x460d/0x69a0 fs/ocfs2/super.c:993
 get_tree_bdev_flags+0x431/0x4f0 fs/super.c:1694
 vfs_get_tree+0x92/0x2a0 fs/super.c:1754
 fc_mount fs/namespace.c:1193 [inline]
 do_new_mount_fc fs/namespace.c:3760 [inline]
 do_new_mount+0x341/0xd30 fs/namespace.c:3836
 do_mount fs/namespace.c:4159 [inline]
 __do_sys_mount fs/namespace.c:4348 [inline]
 __se_sys_mount+0x31d/0x420 fs/namespace.c:4325
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff30323d8ca
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffd2118db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fffd2118e40 RCX: 00007ff30323d8ca
RDX: 0000200000000000 RSI: 0000200000004480 RDI: 00007fffd2118e00
RBP: 0000200000000000 R08: 00007fffd2118e40 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000004480
R13: 00007fffd2118e00 R14: 0000000000004472 R15: 00002000000009c0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_populate_inode+0x17bb/0x17d0 fs/ocfs2/inode.c:414
Code: c7 80 d6 e2 8d be 04 00 00 00 e8 80 d3 f2 fd 65 49 ff 44 24 08 48 8b 5c 24 10 4c 8b 64 24 20 e9 9d f1 ff ff e8 a6 4c 0e fe 90 <0f> 0b e8 9e 4c 0e fe 90 0f 0b 90 e9 96 fe ff ff 0f 1f 44 00 00 90
RSP: 0018:ffffc90004336a80 EFLAGS: 00010293
RAX: ffffffff83b6063a RBX: ffff88805bab8a08 RCX: ffff88802df75ac0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004336bb0 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1ed44b7 R12: ffff888048e47a2c
R13: dffffc0000000000 R14: 0000000000000020 R15: 0000000000000000
FS:  0000555567bff500(0000) GS:ffff888126443000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff3032eb1a9 CR3: 0000000035c44000 CR4: 00000000003526f0