rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2675 jiffies s: 13529 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: 6211 Comm: syz.0.1711 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 RIP: 0010:check_preemption_disabled+0x3/0x110 lib/smp_processor_id.c:13 Code: bc 8c 4c 89 f6 e8 9d 65 0b fa e9 6e ff ff ff 00 00 cc cc 00 00 cc cc 48 c7 c7 40 68 df 8a 48 c7 c6 80 68 df 8a eb 00 55 41 57 <41> 56 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 65 RSP: 0018:ffffc90000007a00 EFLAGS: 00000046 RAX: d7a9fedd0a6dc800 RBX: ffffc90000007a38 RCX: d7a9fedd0a6dc800 RDX: 1ffffffff1f44800 RSI: ffffffff8a8b0ec0 RDI: ffffffff8adf68a0 RBP: 0000000000000000 R08: ffffffff8fa24008 R09: ffffffff8fa24018 R10: ffffffff8fa24010 R11: ffffffff8fa24003 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000555562b96500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f463fff CR3: 000000002ebac000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: irq_exit_rcu+0x11/0x20 kernel/softirq.c:693 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0x4f/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 32 7b 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:ffffc90000007ae0 EFLAGS: 00000206 RAX: d7a9fedd0a6dc800 RBX: 1ffff92000000f64 RCX: d7a9fedd0a6dc800 RDX: dffffc0000000000 RSI: ffffffff8a8c18a0 RDI: ffffffff8adf68a0 RBP: ffffc90000007bd0 R08: ffffffff90b0f24f R09: 1ffffffff2161e49 R10: dffffc0000000000 R11: fffffbfff2161e4a R12: 0000000000000246 R13: dffffc0000000000 R14: ffff8880b8e3bb00 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:2148 __run_hrtimer kernel/time/hrtimer.c:1751 [inline] __hrtimer_run_queues+0x522/0xc90 kernel/time/hrtimer.c:1815 hrtimer_run_softirq+0x173/0x290 kernel/time/hrtimer.c:1832 handle_softirqs+0x291/0x910 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 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:35 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline] RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:106 [inline] RIP: 0010:lock_release+0x156/0x920 kernel/locking/lockdep.c:5694 Code: 00 00 83 3b 00 0f 85 6b 04 00 00 4c 89 74 24 08 43 c6 44 2f 08 00 48 c7 84 24 a0 00 00 00 00 00 00 00 9c 8f 84 24 a0 00 00 00 <48> 8b 84 24 a0 00 00 00 48 89 44 24 50 43 c6 44 2f 08 f8 fa 48 c7 RSP: 0018:ffffc90004747600 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff888027490adc RCX: d7a9fedd0a6dc800 RDX: 0000000000000000 RSI: ffffffff8adf6880 RDI: ffffffff8adf6840 RBP: ffffc90004747720 R08: ffffffff8e20b46f R09: 1ffffffff1c4168d R10: dffffc0000000000 R11: fffffbfff1c4168e R12: ffff88801f7a3ea0 R13: dffffc0000000000 R14: ffff888027490000 R15: 1ffff920008e8ecc __raw_spin_unlock include/linux/spinlock_api_smp.h:141 [inline] _raw_spin_unlock+0x12/0x40 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] alloc_vmap_area+0x171b/0x18d0 mm/vmalloc.c:1705 __get_vm_area_node+0x158/0x330 mm/vmalloc.c:2570 __vmalloc_node_range+0x357/0x1380 mm/vmalloc.c:3260 __vmalloc_node mm/vmalloc.c:3365 [inline] __vmalloc+0x76/0x80 mm/vmalloc.c:3379 bpf_prog_alloc_no_stats+0x37/0x3a0 kernel/bpf/core.c:93 bpf_prog_alloc+0x1c/0x1b0 kernel/bpf/core.c:131 bpf_prog_load+0x7d4/0x1530 kernel/bpf/syscall.c:2597 __sys_bpf+0x5b8/0x780 kernel/bpf/syscall.c:5032 __do_sys_bpf kernel/bpf/syscall.c:5136 [inline] __se_sys_bpf kernel/bpf/syscall.c:5134 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5134 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: 0033:0x7fa7bc39e159 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:00007fff1634fdf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fa7bc625fa0 RCX: 00007fa7bc39e159 RDX: 0000000000000094 RSI: 0000200000000680 RDI: 0000000000000005 RBP: 00007fa7bc43506b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fa7bc625fac R14: 00007fa7bc625fa0 R15: 00007fa7bc625fa0