rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 1, t=10502 jiffies, g=229049, q=829 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10484 (4295145360-4295134876), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10484 jiffies! g229049 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:26448 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0x1800/0x4a60 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6621
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2034
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2236
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 22773 Comm: syz.5.3805 Not tainted 6.11.0-rc5-syzkaller-00079-g928f79a188aa #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:_compound_head include/linux/page-flags.h:242 [inline]
RIP: 0010:virt_to_folio include/linux/mm.h:1292 [inline]
RIP: 0010:virt_to_slab mm/slab.h:206 [inline]
RIP: 0010:kasan_addr_to_slab+0x30/0x80 mm/kasan/common.c:38
Code: 89 fb e8 53 31 48 ff 84 c0 74 3f 48 89 df e8 47 2f 48 ff 48 c1 e8 06 48 83 e0 c0 48 ba 00 00 00 00 00 ea ff ff 48 8b 4c 10 08 <f6> c1 01 75 43 48 01 d0 66 90 ba 00 00 00 82 23 50 30 31 c9 81 fa
RSP: 0018:ffffc90000a17dc8 EFLAGS: 00000202
RAX: 00000000023b3380 RBX: ffff88808ecce580 RCX: ffff888015841280
RDX: ffffea0000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000a17ed0 R08: ffffffff8142c2ec R09: 1ffffffff202ff15
R10: dffffc0000000000 R11: fffffbfff202ff16 R12: ffff88808ecce580
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000142fc8
FS:  00007f51c30a46c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c416711 CR3: 00000000282a8000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 __kasan_record_aux_stack+0x11/0xc0 mm/kasan/generic.c:526
 kvfree_call_rcu+0xfc/0x790 kernel/rcu/tree.c:3815
 cfg80211_update_known_bss+0xb39/0x1500 net/wireless/scan.c:1891
 __cfg80211_bss_update+0x153/0x2170 net/wireless/scan.c:1937
 cfg80211_inform_single_bss_data+0xd51/0x2030 net/wireless/scan.c:2331
 cfg80211_inform_bss_data+0x3dd/0x5a70 net/wireless/scan.c:3159
 cfg80211_inform_bss_frame_data+0x3b8/0x720 net/wireless/scan.c:3254
 ieee80211_bss_info_update+0x8a7/0xbc0 net/mac80211/scan.c:226
 ieee80211_scan_rx+0x526/0x9c0 net/mac80211/scan.c:340
 __ieee80211_rx_handle_packet net/mac80211/rx.c:5225 [inline]
 ieee80211_rx_list+0x2b02/0x3780 net/mac80211/rx.c:5462
 ieee80211_rx_napi+0x18a/0x3c0 net/mac80211/rx.c:5485
 ieee80211_rx include/net/mac80211.h:5124 [inline]
 ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:439
 tasklet_action_common+0x323/0x4d0 kernel/softirq.c:785
 handle_softirqs+0x2c6/0x970 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 ce c8 39 f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 63 fa a1 f5 65 8b 05 b4 d0 42 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc9000939f7c0 EFLAGS: 00000206
RAX: 2c33067ba2840900 RBX: 1ffff92001273efc RCX: ffffffff81703f6a
RDX: dffffc0000000000 RSI: ffffffff8c0ad560 RDI: 0000000000000001
RBP: ffffc9000939f850 R08: ffffffff93734877 R09: 1ffffffff26e690e
R10: dffffc0000000000 R11: fffffbfff26e690f R12: dffffc0000000000
R13: 1ffff92001273ef8 R14: ffffc9000939f7e0 R15: 0000000000000246
 __debug_check_no_obj_freed lib/debugobjects.c:999 [inline]
 debug_check_no_obj_freed+0x561/0x580 lib/debugobjects.c:1020
 free_pages_prepare mm/page_alloc.c:1101 [inline]
 free_unref_page+0x38a/0xea0 mm/page_alloc.c:2612
 __slab_free+0x31b/0x3d0 mm/slub.c:4384
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x9e/0x140 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:322
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3988 [inline]
 slab_alloc_node mm/slub.c:4037 [inline]
 __kmalloc_cache_noprof+0x132/0x2c0 mm/slub.c:4184
 kmalloc_noprof include/linux/slab.h:681 [inline]
 kzalloc_noprof include/linux/slab.h:807 [inline]
 apparmor_sk_alloc_security+0x77/0x100 security/apparmor/lsm.c:1065
 security_sk_alloc+0x77/0xb0 security/security.c:4689
 sk_prot_alloc+0xfa/0x210 net/core/sock.c:2099
 sk_alloc+0x38/0x370 net/core/sock.c:2149
 unix_create1+0xb4/0x7a0
 unix_create+0x14e/0x200 net/unix/af_unix.c:1097
 __sock_create+0x492/0x920 net/socket.c:1571
 sock_create net/socket.c:1622 [inline]
 __sys_socketpair+0x2ca/0x720 net/socket.c:1769
 __do_sys_socketpair net/socket.c:1822 [inline]
 __se_sys_socketpair net/socket.c:1819 [inline]
 __x64_sys_socketpair+0x9b/0xb0 net/socket.c:1819
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f51c2379ef9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f51c30a4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f51c2515f80 RCX: 00007f51c2379ef9
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001
RBP: 00007f51c23e793e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000200 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f51c2515f80 R15: 00007ffc8e6daf58
 </TASK>