rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2641 jiffies s: 71085 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 18281 Comm: syz.3.3613 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:lockdep_hardirqs_on_prepare+0x454/0x770 kernel/locking/lockdep.c:4317
Code: 48 c7 44 24 20 0e 36 e0 45 48 c7 04 13 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 60 0f 85 91 01 00 00 48 8d 65 d8 5b <41> 5c 41 5d 41 5e 41 5f 5d c3 0f 0b 48 c7 c7 a0 10 8c 8a e8 74 cf
RSP: 0018:ffffc900001e09e0 EFLAGS: 00000046
RAX: c9f7a8257a1f4300 RBX: 0000000000000000 RCX: c9f7a8257a1f4300
RDX: dffffc0000000000 RSI: ffffffff8a8c2220 RDI: ffffffff8adf0d20
RBP: ffffc900001e0a00 R08: ffffffff90af7257 R09: 1ffffffff215ee4a
R10: dffffc0000000000 R11: fffffbfff215ee4b R12: ffff888062f946d0
R13: 0000000000000002 R14: 1ffff1100c5f28cb R15: ffff888062f94640
FS:  00007fb4d82086c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb4d8207ff8 CR3: 0000000029809000 CR4: 00000000003506e0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 trace_hardirqs_on+0x34/0x40 kernel/trace/trace_preemptirq.c:49
 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:ffffc900001e0ac0 EFLAGS: 00000206
RAX: c9f7a8257a1f4300 RBX: 1ffff9200003c160 RCX: c9f7a8257a1f4300
RDX: dffffc0000000000 RSI: ffffffff8a8c10a0 RDI: ffffffff8adf0d20
RBP: ffffc900001e0bb0 R08: ffffffff90af7257 R09: 1ffffffff215ee4a
R10: dffffc0000000000 R11: fffffbfff215ee4b R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8f3b900 R15: 0000000000000002
 __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:lock_acquire+0x225/0x4a0 kernel/locking/lockdep.c:5666
Code: f7 84 24 80 00 00 00 00 02 00 00 43 c6 44 3d 04 f8 0f 85 f0 00 00 00 41 f7 c6 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 44 3d 00 00 00 00 00 43 c7 44 3d 08 00 00 00 00 65 48 8b 04
RSP: 0018:ffffc9000388f680 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 0000000000000000 RCX: c9f7a8257a1f4300
RDX: 0000000000000000 RSI: ffffffff8a8c2220 RDI: ffffffff8adf0d20
RBP: ffffc9000388f798 R08: dffffc0000000000 R09: 1ffffffff215ee4a
R10: dffffc0000000000 R11: fffffbfff215ee4b R12: 0000000000000001
R13: 1ffff92000711edc R14: 0000000000000246 R15: dffffc0000000000
 __fs_reclaim_acquire mm/page_alloc.c:4748 [inline]
 fs_reclaim_acquire+0x6d/0x100 mm/page_alloc.c:4762
 might_alloc include/linux/sched/mm.h:271 [inline]
 slab_pre_alloc_hook+0x2a/0x310 mm/slab.h:710
 slab_alloc_node mm/slub.c:3279 [inline]
 __kmem_cache_alloc_node+0x4f/0x260 mm/slub.c:3398
 kmalloc_node_trace+0x22/0xe0 mm/slab_common.c:1039
 kmalloc_node include/linux/slab.h:585 [inline]
 kzalloc_node include/linux/slab.h:710 [inline]
 __get_vm_area_node+0x122/0x330 mm/vmalloc.c:2506
 __vmalloc_node_range+0x357/0x13b0 mm/vmalloc.c:3203
 __vmalloc_node mm/vmalloc.c:3308 [inline]
 __vmalloc+0x76/0x80 mm/vmalloc.c:3322
 bpf_prog_alloc_no_stats+0x3a/0x3a0 kernel/bpf/core.c:92
 bpf_prog_alloc+0x1c/0x1b0 kernel/bpf/core.c:130
 bpf_prog_load+0x7c9/0x1560 kernel/bpf/syscall.c:2597
 __sys_bpf+0x5b8/0x780 kernel/bpf/syscall.c:5031
 __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: 0033:0x7fb4d739c819
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:00007fb4d8208028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fb4d7616360 RCX: 00007fb4d739c819
RDX: 0000000000000021 RSI: 00002000000007c0 RDI: 0000000000000005
RBP: 00007fb4d7432c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb4d76163f8 R14: 00007fb4d7616360 R15: 00007ffd79b94fb8
 </TASK>