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WARNING: CPU: 0 PID: 18956 at fs/kernfs/dir.c:36 kernfs_active+0x11d/0x160
Modules linked in:
CPU: 0 PID: 18956 Comm: syz-executor.0 Not tainted 6.1.0-rc1-next-20221020 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:kernfs_active+0x11d/0x160
Code: 83 c0 03 38 d0 7c 04 84 d2 75 23 8b 5b 04 31 ff 89 de e8 96 9a a5 ff 89 d8 5b 5d f7 d0 c1 e8 1f e9 88 b6 93 02 e8 53 9e a5 ff <0f> 0b eb a1 48 89 ef e8 b7 34 d9 ff eb d3 48 c7 c7 4c b8 90 85 e8
RSP: 0018:ffff88804437fbc0 EFLAGS: 00010212
RAX: 0000000000000133 RBX: ffff8880187e8740 RCX: ffffc90002dee000
RDX: 0000000000040000 RSI: ffffffff81a27d7d RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880187e8740
R13: ffff88800652a000 R14: 0000000000000000 R15: 0000000000000002
FS:  00007f924254a700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fc22000 CR3: 00000000431f6000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kernfs_find_and_get_node_by_id+0x84/0x180
 __kernfs_fh_to_dentry+0xdb/0x280
 exportfs_decode_fh_raw+0x12a/0x7f0
 exportfs_decode_fh+0x38/0xa0
 do_handle_open+0x2bb/0x8d0
 do_syscall_64+0x3b/0xa0
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f9244fd4b19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f924254a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000130
RAX: ffffffffffffffda RBX: 00007f92450e7f60 RCX: 00007f9244fd4b19
RDX: 0000000000002000 RSI: 0000000020000200 RDI: 0000000000000004
RBP: 00007f924502ef6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe6492718f R14: 00007f924254a300 R15: 0000000000022000
 </TASK>
irq event stamp: 1029
hardirqs last  enabled at (1039): [<ffffffff812d7a28>] __up_console_sem+0x78/0x90
hardirqs last disabled at (1050): [<ffffffff812d7a0d>] __up_console_sem+0x5d/0x90
softirqs last  enabled at (464): [<ffffffff8117d68b>] __irq_exit_rcu+0x11b/0x190
softirqs last disabled at (433): [<ffffffff8117d68b>] __irq_exit_rcu+0x11b/0x190
---[ end trace 0000000000000000 ]---