------------[ cut here ]------------
percpu ref (css_release) <= 0 (-2440) after switching to atomic
WARNING: lib/percpu-refcount.c:197 at percpu_ref_switch_to_atomic_rcu+0x3cc/0x480, CPU#1: kworker/u10:6/561
Modules linked in:
CPU: 1 UID: 0 PID: 561 Comm: kworker/u10:6 Tainted: G        W           6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:percpu_ref_switch_to_atomic_rcu+0x3cc/0x480
Code: 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 9e 00 00 00 49 8b 75 e8 48 c7 c7 80 97 e2 84 e8 75 c5 e9 fe 90 <0f> 0b 90 90 e9 2b ff ff ff e8 f6 de 5f ff e9 9e fe ff ff e8 7c df
RSP: 0018:ffff88806cf08e20 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8139de70
RDX: ffff888017ce8000 RSI: ffffffff8139de7e RDI: 0000000000000001
RBP: 7ffffffffffff677 R08: 0000000000000001 R09: ffffed100d9e4801
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88800b6e3000
R13: ffff88800b6e3020 R14: 0000000000000002 R15: 0000000000000003
FS:  0000000000000000(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6992ddc368 CR3: 000000003907c000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 rcu_core+0x7c8/0x1800
 handle_softirqs+0x1b1/0x770
 __irq_exit_rcu+0xc4/0x100
 irq_exit_rcu+0x9/0x20
 sysvec_apic_timer_interrupt+0x70/0x80
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:___slab_alloc+0x18b/0xf30
Code: 47 28 00 00 00 00 4c 89 ff 48 8d 35 00 00 00 00 e8 2a 9a a9 ff 48 83 bd 50 ff ff ff 00 74 06 e8 cb ed d3 ff fb 49 83 7d 18 00 <0f> 84 bf 02 00 00 4c 89 f0 4d 89 e6 49 89 c4 9c 5b fa 48 89 d8 25
RSP: 0018:ffff88803c3cf0b0 EFLAGS: 00000286
RAX: 0000000000124971 RBX: 0000000000000246 RCX: 0000000000000040
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81a83ea5
RBP: ffff88803c3cf180 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8643ac57 R11: ffff88806cf3bb10 R12: ffff888008c4b780
R13: ffff88806cf3baf0 R14: ffff888017ce8000 R15: ffff88806cf3bb10
 kmem_cache_alloc_noprof+0x47e/0x690
 __alloc_object+0x2b/0x2c0
 __create_object+0x1d/0x80
 __kmalloc_noprof+0x45c/0x6e0
 cfg80211_inform_single_bss_data+0x4e9/0x1bd0
 cfg80211_inform_bss_data+0x20e/0x34e0
 cfg80211_inform_bss_frame_data+0x253/0x6b0
 ieee80211_bss_info_update+0x2f5/0xa90
 ieee80211_ibss_rx_queued_mgmt+0x18b3/0x2f50
 ieee80211_iface_work+0xd52/0x1220
 cfg80211_wiphy_work+0x245/0x480
 process_one_work+0x8e1/0x19c0
 worker_thread+0x67e/0xe90
 kthread+0x3c8/0x740
 ret_from_fork+0x34b/0x430
 ret_from_fork_asm+0x1a/0x30
 </TASK>
irq event stamp: 1199600
hardirqs last  enabled at (1199610): [<ffffffff81541b18>] __up_console_sem+0x78/0x80
hardirqs last disabled at (1199619): [<ffffffff81541afd>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (1198428): [<ffffffff8488ae65>] ieee80211_ibss_work+0x2e5/0x1360
softirqs last disabled at (1198451): [<ffffffff813bb364>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
percpu_ref_switch_to_atomic_rcu: percpu_ref_switch_to_atomic_rcu(): percpu_ref underflow slab kmalloc-64 start ffff88800b6e3000 pointer offset 0 size 64
percpu_ref_switch_to_atomic_rcu: percpu_ref_switch_to_atomic_rcu(): percpu_ref underflow slab kmalloc-64 start ffff88800edcf780 pointer offset 0 size 64
----------------
Code disassembly (best guess):
   0:	47 28 00             	rex.RXB sub %r8b,(%r8)
   3:	00 00                	add    %al,(%rax)
   5:	00 4c 89 ff          	add    %cl,-0x1(%rcx,%rcx,4)
   9:	48 8d 35 00 00 00 00 	lea    0x0(%rip),%rsi        # 0x10
  10:	e8 2a 9a a9 ff       	callq  0xffa99a3f
  15:	48 83 bd 50 ff ff ff 	cmpq   $0x0,-0xb0(%rbp)
  1c:	00
  1d:	74 06                	je     0x25
  1f:	e8 cb ed d3 ff       	callq  0xffd3edef
  24:	fb                   	sti
  25:	49 83 7d 18 00       	cmpq   $0x0,0x18(%r13)
* 2a:	0f 84 bf 02 00 00    	je     0x2ef <-- trapping instruction
  30:	4c 89 f0             	mov    %r14,%rax
  33:	4d 89 e6             	mov    %r12,%r14
  36:	49 89 c4             	mov    %rax,%r12
  39:	9c                   	pushfq
  3a:	5b                   	pop    %rbx
  3b:	fa                   	cli
  3c:	48 89 d8             	mov    %rbx,%rax
  3f:	25                   	.byte 0x25