rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2663 jiffies s: 29145 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 9903 Comm: syz.7.1409 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:arch_atomic_cmpxchg arch/x86/include/asm/atomic.h:-1 [inline]
RIP: 0010:atomic_cmpxchg include/linux/atomic/atomic-instrumented.h:504 [inline]
RIP: 0010:irq_work_single+0x136/0x230 kernel/irq_work.c:218
Code: 42 80 3c 20 00 74 05 e8 58 b1 44 00 48 89 df ff 53 10 41 83 e5 fc 4c 89 f7 be 04 00 00 00 e8 e1 b2 44 00 89 e8 f0 45 0f b1 2e <48> c7 c0 78 ec 1f 8e 48 c1 e8 03 42 80 3c 20 00 74 0c 48 c7 c7 78
RSP: 0018:ffffc900000078e8 EFLAGS: 00000046
RAX: 0000000000000022 RBX: ffff8880b8e3b9f0 RCX: ffffffff818ed04f
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff8880b8e3b9f8
RBP: 0000000000000022 R08: ffff8880b8e3b9fb R09: 1ffff110171c773f
R10: dffffc0000000000 R11: ffffed10171c7740 R12: dffffc0000000000
R13: 0000000000000020 R14: ffff8880b8e3b9f8 R15: 1ffff1100a0f1c81
FS:  00007f1b0b2b36c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000d40000 CR3: 000000006777a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 irq_work_run_list kernel/irq_work.c:242 [inline]
 irq_work_run+0x159/0x2f0 kernel/irq_work.c:251
 __sysvec_irq_work+0xba/0x350 arch/x86/kernel/irq_work.c:22
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0x4a/0xc0 arch/x86/kernel/irq_work.c:17
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x7f/0x510 kernel/rcu/tree_plugin.h:685
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 d2 33 95 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc90000007ac0 EFLAGS: 00000206
RAX: 04b4f9cfab5b7200 RBX: 1ffff92000000f60 RCX: 04b4f9cfab5b7200
RDX: dffffc0000000000 RSI: ffffffff8a8c1120 RDI: ffffffff8adf13a0
RBP: ffffc90000007bb0 R08: ffffffff90af9247 R09: 1ffffffff215f248
R10: dffffc0000000000 R11: fffffbfff215f249 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8e3b900 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 ieee80211_iterate_active_interfaces_atomic+0x156/0x170 net/mac80211/util.c:826
 mac80211_hwsim_beacon+0xb7/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2147
 __run_hrtimer kernel/time/hrtimer.c:1747 [inline]
 __hrtimer_run_queues+0x54a/0xd50 kernel/time/hrtimer.c:1811
 hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1828
 handle_softirqs+0x2a1/0x930 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__raw_spin_unlock include/linux/spinlock_api_smp.h:141 [inline]
RIP: 0010:_raw_spin_unlock+0xd/0x40 kernel/locking/spinlock.c:186
Code: 83 c4 08 48 89 df 5b 41 5e e9 5f 75 2d f7 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 <e8> 6e b1 2c f7 48 89 df e8 b6 79 2d f7 bf 01 00 00 00 e8 0c de 20
RSP: 0018:ffffc90003de7810 EFLAGS: 00000286
RAX: 1ffff1100ad40140 RBX: ffff888058e6e8a0 RCX: 04b4f9cfab5b7200
RDX: 0000000000000002 RSI: ffffffff81c0820b RDI: ffff888058e6e8b8
RBP: ffffc90003de79f0 R08: ffffffff8e1ff42f R09: 1ffffffff1c3fe85
R10: dffffc0000000000 R11: fffffbfff1c3fe86 R12: ffff88805078d940
R13: ffff88807486fe58 R14: 0000000000000000 R15: dffffc0000000000
 spin_unlock include/linux/spinlock.h:391 [inline]
 do_anonymous_page mm/memory.c:4236 [inline]
 handle_pte_fault mm/memory.c:5027 [inline]
 __handle_mm_fault mm/memory.c:5171 [inline]
 handle_mm_fault+0x359b/0x3ee0 mm/memory.c:5292
 do_user_addr_fault+0x51f/0xb10 arch/x86/mm/fault.c:1338
 handle_page_fault arch/x86/mm/fault.c:1429 [inline]
 exc_page_fault+0x60/0x100 arch/x86/mm/fault.c:1482
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:608
RIP: 0010:copy_user_enhanced_fast_string+0xa/0x40 arch/x86/lib/copy_user_64.S:166
Code: ff c9 75 f2 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 8d 0c ca 89 ca eb 20 0f 01 cb 83 fa 40 72 38 89 d1 <f3> a4 31 c0 0f 01 ca c3 89 ca eb 0a 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90003de7ba8 EFLAGS: 00050206
RAX: ffffffff84115401 RBX: 000000000000ffd0 RCX: 000000000000d850
RDX: 000000000000ffd0 RSI: 0000200000d40000 RDI: ffff88802bda2780
RBP: 0000000000000000 R08: ffff88802bdaffcf R09: 1ffff110057b5ff9
R10: dffffc0000000000 R11: ffffed10057b5ffa R12: 00007ffffffef030
R13: 1ffff920007bcf90 R14: ffff88802bda0000 R15: 0000200000d3d880
 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
 raw_copy_from_user arch/x86/include/asm/uaccess_64.h:52 [inline]
 _copy_from_user+0xf4/0x170 lib/usercopy.c:23
 copy_from_user include/linux/uaccess.h:161 [inline]
 generic_map_update_batch+0x4f3/0x810 kernel/bpf/syscall.c:1706
 bpf_map_do_batch+0x466/0x600 kernel/bpf/syscall.c:-1
 __sys_bpf+0x6f7/0x780 kernel/bpf/syscall.c:-1
 __do_sys_bpf kernel/bpf/syscall.c:5135 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5133 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5133
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f1b0a39c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1b0b2b3028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f1b0a615fa0 RCX: 00007f1b0a39c819
RDX: 0000000000000038 RSI: 0000200000000200 RDI: 000000000000001a
RBP: 00007f1b0a432c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1b0a616038 R14: 00007f1b0a615fa0 R15: 00007ffc04121328
 </TASK>