syzbot

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WARNING: CPU: 1 PID: 3616 at fs/kernfs/dir.c:36 kernfs_find_and_get_node_by_id+0x1f0/0x270 fs/kernfs/dir.c:708
Modules linked in:
CPU: 1 PID: 3616 Comm: syz-executor203 Not tainted 6.1.0-rc3-syzkaller-00152-gf2f32f8af2b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
RIP: 0010:kernfs_active fs/kernfs/dir.c:36 [inline]
RIP: 0010:kernfs_find_and_get_node_by_id+0x1f0/0x270 fs/kernfs/dir.c:708
Code: e8 05 5a 3a 08 4c 89 f0 5b 41 5c 41 5e 41 5f 5d c3 e8 c4 07 73 ff e9 35 ff ff ff e8 ba 07 73 ff e9 2b ff ff ff e8 b0 07 73 ff <0f> 0b e9 2c ff ff ff 48 c7 c1 14 bc 27 8e 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc90003d9fb78 EFLAGS: 00010293
RAX: ffffffff8216aea0 RBX: 0000000000000000 RCX: ffff888077fcd7c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff8216adab R09: fffff520007b3f60
R10: fffff520007b3f61 R11: 1ffff920007b3f60 R12: dffffc0000000000
R13: 0000000000000002 R14: ffff888012306570 R15: 0000000000000005
FS:  0000555555dae300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 000000007a080000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __kernfs_fh_to_dentry fs/kernfs/mount.c:102 [inline]
 kernfs_fh_to_dentry+0x129/0x1d0 fs/kernfs/mount.c:128
 exportfs_decode_fh_raw+0x140/0x590 fs/exportfs/expfs.c:435
 exportfs_decode_fh+0x38/0x70 fs/exportfs/expfs.c:575
 do_handle_to_path fs/fhandle.c:152 [inline]
 handle_to_path fs/fhandle.c:207 [inline]
 do_handle_open+0x488/0x8f0 fs/fhandle.c:223
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2d1241cbe9
Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe81c84848 EFLAGS: 00000246 ORIG_RAX: 0000000000000130
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2d1241cbe9
RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000005
RBP: 00007f2d123e0d90 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d123e0e20
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>