cgroup: fork rejected by pids controller in /syz1
Oops: stack segment: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 5594 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:kernfs_rename_ns+0x3a/0x930
Code: ec 40 48 89 cb 48 89 54 24 08 49 89 f5 49 89 fe 49 bf 00 00 00 00 00 fc ff df e8 c1 50 4e ff 4d 8d 66 30 4c 89 e5 48 c1 ed 03 <42> 80 7c 3d 00 00 74 08 4c 89 e7 e8 f6 35 be ff 49 83 3c 24 00 0f
RSP: 0018:ffffc90004407848 EFLAGS: 00010206
RAX: ffffffff8279748f RBX: 0000000000000000 RCX: ffff88810e3fbc00
RDX: 0000000000000000 RSI: ffff8881062b8a50 RDI: 0000000000000000
RBP: 0000000000000006 R08: ffff88810e3fbc00 R09: 0000000000000008
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000030
R13: ffff8881062b8a50 R14: 0000000000000000 R15: dffffc0000000000
FS:  000055555c373500(0000) GS:ffff88818d6d6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe9687d2e8 CR3: 00000001a80a4000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 kobject_move+0x560/0x720
 device_move+0xe0/0x720
 hci_conn_del_sysfs+0xb8/0x1a0
 hci_conn_del+0xc3d/0x1200
 hci_conn_hash_flush+0x189/0x260
 hci_dev_close_sync+0x7fc/0x10c0
 hci_unregister_dev+0x232/0x5b0
 vhci_release+0x16d/0x1c0
 __fput+0x418/0xa50
 task_work_run+0x1d9/0x270
 do_exit+0x73a/0x2360
 do_group_exit+0x22d/0x2f0
 __x64_sys_exit_group+0x3f/0x40
 x64_sys_call+0x18c6/0x18d0
 do_syscall_64+0x166/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb7d9d9e159
Code: Unable to access opcode bytes at 0x7fb7d9d9e12f.
RSP: 002b:00007ffc2aa457c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb7d9d9e159
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000043
RBP: 00007fb7d9e35fde R08: 0000000000000000 R09: 00000000000927c0
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000b
R13: 00000000000927c0 R14: 000000000001ac23 R15: 00007ffc2aa45980
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:kernfs_rename_ns+0x3a/0x930
Code: ec 40 48 89 cb 48 89 54 24 08 49 89 f5 49 89 fe 49 bf 00 00 00 00 00 fc ff df e8 c1 50 4e ff 4d 8d 66 30 4c 89 e5 48 c1 ed 03 <42> 80 7c 3d 00 00 74 08 4c 89 e7 e8 f6 35 be ff 49 83 3c 24 00 0f
RSP: 0018:ffffc90004407848 EFLAGS: 00010206
RAX: ffffffff8279748f RBX: 0000000000000000 RCX: ffff88810e3fbc00
RDX: 0000000000000000 RSI: ffff8881062b8a50 RDI: 0000000000000000
RBP: 0000000000000006 R08: ffff88810e3fbc00 R09: 0000000000000008
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000030
R13: ffff8881062b8a50 R14: 0000000000000000 R15: dffffc0000000000
FS:  000055555c373500(0000) GS:ffff88818d6d6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055f6d93659a8 CR3: 00000001ba91c000 CR4: 00000000000006f0
