rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (0 ticks this GP) idle=530c/1/0x4000000000000000 softirq=55166/55166 fqs=1
rcu: 	(detected by 1, t=10502 jiffies, g=52009, q=142 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 13871 Comm: syz.7.1744 Not tainted 6.14.0-rc1-syzkaller-00081-gbb066fe812d6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:get_current arch/x86/include/asm/current.h:49 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:216
Code: 8b 3d a4 a5 70 0c 48 89 de 5b e9 73 c7 58 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0c 25 00 d5 03 00 65 8b 15 30 77 44 7e 81 e2 00 01 ff 00
RSP: 0018:ffffc90000007c68 EFLAGS: 00000046
RAX: ffffffff89ef419e RBX: 0007cfafb8000000 RCX: ffff8880643e5a00
RDX: 0000000000010000 RSI: 0000000004000000 RDI: 0000000000000000
RBP: ffff88805f90c4c8 R08: ffffffff89ef3f13 R09: fffff52000000f7c
R10: dffffc0000000000 R11: fffff52000000f7c R12: dffffc0000000000
R13: ffff88805f90c408 R14: ffff88805f90c400 R15: ffff88805c110340
FS:  00005555738f4500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2f5c64 CR3: 000000007d8f4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 should_change_schedules net/sched/sch_taprio.c:884 [inline]
 advance_sched+0x80e/0xca0 net/sched/sch_taprio.c:968
 __run_hrtimer kernel/time/hrtimer.c:1801 [inline]
 __hrtimer_run_queues+0x59b/0xd30 kernel/time/hrtimer.c:1865
 hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1927
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
 </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 ae c1 32 f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> b3 df 9c f5 65 8b 05 a4 27 13 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc9000c9c79c0 EFLAGS: 00000206
RAX: b71f5b4ec9350200 RBX: 1ffff92001938f3c RCX: ffffffff9a3ca903
RDX: dffffc0000000000 RSI: ffffffff8c0aa680 RDI: 0000000000000001
RBP: ffffc9000c9c7a50 R08: ffffffff901a2877 R09: 1ffffffff203450e
R10: dffffc0000000000 R11: fffffbfff203450f R12: dffffc0000000000
R13: 1ffff92001938f38 R14: ffffc9000c9c79e0 R15: 0000000000000246
 class_raw_spinlock_irqsave_destructor include/linux/spinlock.h:551 [inline]
 try_to_wake_up+0x91b/0x1470 kernel/sched/core.c:4213
 wake_up_process kernel/sched/core.c:4462 [inline]
 wake_up_q+0xc8/0x120 kernel/sched/core.c:1074
 futex_wake+0x523/0x5c0 kernel/futex/waitwake.c:199
 do_futex+0x392/0x560 kernel/futex/syscalls.c:107
 __do_sys_futex kernel/futex/syscalls.c:179 [inline]
 __se_sys_futex+0x3f9/0x480 kernel/futex/syscalls.c:160
 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: 0033:0x7f2c5db8cde9
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:00007fff6c92b5c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f2c5dda6088 RCX: 00007f2c5db8cde9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f2c5dda6088
RBP: 0000000000000001 R08: 0000000000000005 R09: 000000146c92b8bf
R10: 00007f2c5dda5fa0 R11: 0000000000000246 R12: 00007f2c5dda608c
R13: 00007f2c5dda6080 R14: 00000000000000fc R15: 0000000000000002
 </TASK>
rcu: rcu_preempt kthread starved for 10490 jiffies! g52009 f0x0 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:25816 pid:17    tgid:17    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5377 [inline]
 __schedule+0x18bc/0x4c40 kernel/sched/core.c:6764
 __schedule_loop kernel/sched/core.c:6841 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6856
 schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2024
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2226
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 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: 12661 Comm: kworker/u8:0 Not tainted 6.14.0-rc1-syzkaller-00081-gbb066fe812d6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:unwind_next_frame+0xb31/0x22d0
Code: 00 00 41 0f b6 77 01 83 e6 07 83 fe 04 0f 84 e6 01 00 00 83 fe 03 0f 84 3e 03 00 00 83 fe 02 0f 85 98 04 00 00 48 89 6c 24 48 <4c> 89 7c 24 28 49 8d 6d 08 48 89 e8 48 c1 e8 03 48 89 84 24 88 00
RSP: 0018:ffffc90000a17730 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffffffff2279258 RCX: ffffffff9092d5f0
RDX: ffffffff913c92bc RSI: 0000000000000002 RDI: 0000000000000001
RBP: ffffffff913c92c1 R08: 0000000000000001 R09: ffffc90000a178f0
R10: ffffc90000a17850 R11: ffffffff81ab1d60 R12: dffffc0000000000
R13: ffffc90000a17800 R14: ffffc90000a17838 R15: ffffffff913c92c0
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1b092d56c0 CR3: 000000000e738000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4294 [inline]
 __kmalloc_noprof+0x285/0x4c0 mm/slub.c:4306
 kmalloc_noprof include/linux/slab.h:905 [inline]
 kzalloc_noprof include/linux/slab.h:1037 [inline]
 ieee802_11_parse_elems_full+0xd9/0x2750 net/mac80211/parse.c:985
 ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2397 [inline]
 ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2404 [inline]
 ieee80211_inform_bss+0x15f/0x1080 net/mac80211/scan.c:79
 rdev_inform_bss net/wireless/rdev-ops.h:418 [inline]
 cfg80211_inform_single_bss_data+0xec1/0x2070 net/wireless/scan.c:2367
 cfg80211_inform_bss_data+0x3c8/0x5d60 net/wireless/scan.c:3222
 cfg80211_inform_bss_frame_data+0x3bb/0x720 net/wireless/scan.c:3317
 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:5246 [inline]
 ieee80211_rx_list+0x2c44/0x3810 net/mac80211/rx.c:5483
 ieee80211_rx_napi+0x18a/0x3c0 net/mac80211/rx.c:5506
 ieee80211_rx include/net/mac80211.h:5172 [inline]
 ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:441
 tasklet_action_common+0x426/0x620 kernel/softirq.c:811
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 __do_softirq kernel/softirq.c:595 [inline]
 invoke_softirq kernel/softirq.c:435 [inline]
 __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:smp_call_function_many_cond+0x1bc5/0x2d30 kernel/smp.c:885
Code: e8 60 e4 0b 00 eb 41 f3 90 48 b8 00 00 00 00 00 fc ff df 0f b6 04 03 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 3b e4 0b 00 <eb> db 44 89 e9 80 e1 07 80 c1 03 38 c1 7c e2 4c 89 ef e8 24 f5 6f
RSP: 0018:ffffc9000c867640 EFLAGS: 00000293
RAX: ffffffff81b37985 RBX: 1ffff110170c8c75 RCX: ffff888055adbc00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000c867840 R08: ffffffff81b37950 R09: 1ffffffff2858708
R10: dffffc0000000000 R11: fffffbfff2858709 R12: ffff8880b873f9c8
R13: ffff8880b86463a8 R14: ffff8880b873f9c0 R15: 0000000000000000
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1052
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:2118 [inline]
 text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2328
 text_poke_flush arch/x86/kernel/alternative.c:2519 [inline]
 text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2526
 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
 static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:210
 static_key_enable+0x1a/0x20 kernel/jump_label.c:223
 toggle_allocation_gate+0xbc/0x260 mm/kfence/core.c:850
 process_one_work kernel/workqueue.c:3236 [inline]
 process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3317
 worker_thread+0x870/0xd30 kernel/workqueue.c:3398
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>