rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2632 jiffies s: 108705 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: 23003 Comm: syz.2.5586 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:22 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline] RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline] RIP: 0010:lock_acquire+0x1e7/0x4a0 kernel/locking/lockdep.c:5679 Code: c4 20 48 c7 c7 20 2a 8c 8a e8 d5 52 cd 08 b8 ff ff ff ff 65 0f c1 05 c8 6e 9e 7e 83 f8 01 0f 85 03 01 00 00 43 c6 44 3d 04 00 <48> c7 84 24 80 00 00 00 00 00 00 00 9c 8f 84 24 80 00 00 00 f7 84 RSP: 0018:ffffc900001dff00 EFLAGS: 00000046 RAX: 0000000000000001 RBX: 0000000000000000 RCX: dd20233c22526000 RDX: 0000000000000000 RSI: ffffffff8a8c2a20 RDI: ffffffff8adf6420 RBP: ffffc900001e0010 R08: dffffc0000000000 R09: 1ffffffff2162648 R10: dffffc0000000000 R11: fffffbfff2162649 R12: 0000000000000001 R13: 1ffff9200003bfec R14: 0000000000000046 R15: dffffc0000000000 FS: 00007f15515a56c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6688094d58 CR3: 0000000063555000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: rcu_lock_acquire include/linux/rcupdate.h:350 [inline] rcu_read_lock include/linux/rcupdate.h:791 [inline] is_bpf_text_address+0x43/0x2a0 kernel/bpf/core.c:736 kernel_text_address+0x9c/0xd0 kernel/extable.c:125 __kernel_text_address+0x9/0x30 kernel/extable.c:79 unwind_get_return_address+0x49/0x80 arch/x86/kernel/unwind_orc.c:323 perf_callchain_kernel+0x300/0x690 arch/x86/events/core.c:2806 get_perf_callchain+0x236/0x490 kernel/events/callchain.c:204 perf_callchain kernel/events/core.c:7522 [inline] perf_prepare_sample+0x399/0x2020 kernel/events/core.c:7555 __perf_event_output kernel/events/core.c:7740 [inline] perf_event_output_forward+0x197/0x2f0 kernel/events/core.c:7760 __perf_event_overflow+0x457/0x630 kernel/events/core.c:9506 perf_swevent_overflow kernel/events/core.c:9589 [inline] perf_swevent_event+0x315/0x570 kernel/events/core.c:9640 perf_tp_event+0x36b/0xc10 kernel/events/core.c:10074 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10042 perf_trace_preemptirq_template+0x268/0x320 include/trace/events/preemptirq.h:14 trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40 trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44 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 12 6c 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:ffffc900001e0ae0 EFLAGS: 00000206 RAX: dd20233c22526000 RBX: 1ffff9200003c164 RCX: dd20233c22526000 RDX: dffffc0000000000 RSI: ffffffff8a8c18a0 RDI: ffffffff8adf6420 RBP: ffffc900001e0bd0 R08: ffff8880b8f357cb R09: 1ffff110171e6af9 R10: dffffc0000000000 R11: ffffed10171e6afa R12: 0000000000000246 R13: dffffc0000000000 R14: ffff8880b8f3bb00 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: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:put_cpu_partial+0x1b0/0x250 mm/slub.c:2666 Code: 3b 44 24 18 0f 85 b4 00 00 00 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 4c 43 5e 08 f7 c5 00 02 00 00 74 c0 fb 4d 85 e4 <75> bf eb c8 e8 f7 d2 3f 02 85 c0 0f 84 e9 fe ff ff 83 3d 90 46 4e RSP: 0018:ffffc900054ff590 EFLAGS: 00000246 RAX: dd20233c22526000 RBX: ffff888017441c80 RCX: dd20233c22526000 RDX: dffffc0000000000 RSI: ffffffff8a8c18a0 RDI: ffffffff8adf6420 RBP: 0000000000000286 R08: ffff8880b8f357cb R09: 1ffff110171e6af9 R10: dffffc0000000000 R11: ffffed10171e6afa R12: 0000000000000000 R13: 0000000000000001 R14: ffff88807c751e00 R15: ffff8880b8f3e950 qlink_free mm/kasan/quarantine.c:168 [inline] qlist_free_all+0x76/0xe0 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x144/0x160 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x1e/0x80 mm/kasan/common.c:306 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x4b/0x490 mm/slab.h:737 slab_alloc_node mm/slub.c:3359 [inline] kmem_cache_alloc_node+0x1ad/0x310 mm/slub.c:3404 alloc_vmap_area+0x18e/0x18d0 mm/vmalloc.c:1676 __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: 0033:0x7f155079e159 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:00007f15515a5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f1550a25fa0 RCX: 00007f155079e159 RDX: 0000000000000094 RSI: 0000200000000780 RDI: 0000000000000005 RBP: 00007f155083503b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f1550a26038 R14: 00007f1550a25fa0 R15: 00007ffecadf9418