rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-....: (1 GPs behind) idle=595/1/0x4000000000000002 softirq=43219/43221 fqs=2088 (detected by 1, t=10505 jiffies, g=55957, q=702) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 14679 Comm: syz.0.3733 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:__perf_event_account_interrupt+0x143/0x280 kernel/events/core.c:9430 Code: 76 f1 0b 4c 89 ff 4c 89 e6 e8 39 b2 e0 ff 4d 39 e7 0f 83 f7 00 00 00 e8 4b b0 e0 ff 31 ed 49 bd 00 00 00 00 00 fc ff df eb 05 38 b0 e0 ff 4c 8d b3 00 01 00 00 4c 89 f0 48 c1 e8 03 42 80 3c RSP: 0018:ffffc900000075a8 EFLAGS: 00000046 RAX: ffffffff8198985c RBX: ffff888077fa9dd8 RCX: ffff88807e2d5940 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff888077faa24b R09: 1ffff1100eff5449 R10: dffffc0000000000 R11: ffffed100eff544a R12: ffff888077fa9fd8 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888077fa9fe0 FS: 00007f6f200766c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f93cc933158 CR3: 0000000050163000 CR4: 00000000003506f0 DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __perf_event_overflow+0x99/0x530 kernel/events/core.c:9474 perf_tp_event+0x383/0xbf0 kernel/events/core.c:10047 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10021 perf_trace_preemptirq_template+0x2aa/0x360 include/trace/events/preemptirq.h:14 trace_irq_enable_rcuidle+0x108/0x180 include/trace/events/preemptirq.h:40 trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713 RIP: 0010:rcu_read_unlock_special+0x7f/0x4a0 kernel/rcu/tree_plugin.h:674 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 f2 cc 9c 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08 RSP: 0018:ffffc90000007b00 EFLAGS: 00000206 RAX: 29aacdf2e90fc600 RBX: 1ffff92000000f64 RCX: 29aacdf2e90fc600 RDX: dffffc0000000000 RSI: ffffffff8a2b3180 RDI: ffffffff8a7a09c0 RBP: ffffc90000007be0 R08: ffffffff901d80d7 R09: 1ffffffff203b01a R10: dffffc0000000000 R11: fffffbfff203b01b R12: ffffffff8c323800 R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422 rcu_read_unlock include/linux/rcupdate.h:772 [inline] ieee80211_rx_napi+0x20f/0x390 net/mac80211/rx.c:5019 ieee80211_rx include/net/mac80211.h:4573 [inline] ieee80211_handle_queued_frames+0x105/0x1b0 net/mac80211/main.c:237 tasklet_action_common+0x2ad/0x410 kernel/softirq.c:806 handle_softirqs+0x339/0x830 kernel/softirq.c:576 __do_softirq kernel/softirq.c:610 [inline] invoke_softirq kernel/softirq.c:450 [inline] __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline] sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0010:preempt_schedule_irq+0xb6/0x160 kernel/sched/core.c:6799 Code: 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 7f bf 01 00 00 00 e8 a5 c1 8c f7 e8 e0 b1 b9 f7 fb bf 01 00 00 00 65 b5 ff ff 43 c6 44 37 08 00 48 c7 44 24 40 00 00 00 00 9c 8f RSP: 0018:ffffc90002f7f4e0 EFLAGS: 00000282 RAX: 29aacdf2e90fc600 RBX: 0000000000000000 RCX: 29aacdf2e90fc600 RDX: dffffc0000000000 RSI: ffffffff8a2b3180 RDI: 0000000000000001 RBP: ffffc90002f7f590 R08: ffffffff901d80d7 R09: 1ffffffff203b01a R10: dffffc0000000000 R11: fffffbfff203b01b R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920005efe9c irqentry_exit+0x63/0x70 kernel/entry/common.c:432 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0010:kasan_mem_to_shadow include/linux/kasan.h:55 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline] RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline] RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline] RIP: 0010:kasan_check_range+0x5a/0x290 mm/kasan/generic.c:189 Code: 01 00 00 49 bc 01 00 00 00 00 fc ff df 49 89 fe 49 c1 ee 03 49 ba 00 00 00 00 00 fc ff df 4f 8d 1c 16 4c 8d 44 3e ff 4d 89 c1 <49> c1 e9 03 4b 8d 1c 21 49 89 df 4d 29 df 49 83 ff 10 7f 29 4d 85 RSP: 0018:ffffc90002f7f650 EFLAGS: 00000a06 RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff815da814 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8d8a06e8 RBP: ffffc90002f7f7a0 R08: ffffffff8d8a06ef R09: ffffffff8d8a06ef R10: dffffc0000000000 R11: fffffbfff1b140dd R12: dffffc0000000001 R13: dffffc0000000000 R14: 1ffffffff1b140dd R15: 1ffff920005eff0c instrument_atomic_read include/linux/instrumented.h:71 [inline] test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline] cpumask_test_cpu include/linux/cpumask.h:344 [inline] cpu_online include/linux/cpumask.h:895 [inline] trace_lock_release include/trace/events/lock.h:58 [inline] lock_release+0xa4/0x8a0 kernel/locking/lockdep.c:5634 prepare_alloc_pages+0x15a/0x5f0 mm/page_alloc.c:5272 __alloc_pages+0x11b/0x480 mm/page_alloc.c:5490 __get_free_pages+0x8/0x30 mm/page_alloc.c:5538 kasan_populate_vmalloc_pte+0x21/0xc0 mm/kasan/shadow.c:266 apply_to_pte_range mm/memory.c:2573 [inline] apply_to_pmd_range mm/memory.c:2617 [inline] apply_to_pud_range mm/memory.c:2653 [inline] apply_to_p4d_range mm/memory.c:2689 [inline] __apply_to_page_range+0x983/0xd10 mm/memory.c:2725 alloc_vmap_area+0x18d5/0x1a10 mm/vmalloc.c:1572 __get_vm_area_node+0x14f/0x2d0 mm/vmalloc.c:2430 __vmalloc_node_range+0xef/0x8b0 mm/vmalloc.c:3027 __bpf_map_area_alloc kernel/bpf/syscall.c:328 [inline] bpf_map_area_alloc+0xd4/0xe0 kernel/bpf/syscall.c:335 array_map_alloc+0x27c/0x6f0 kernel/bpf/arraymap.c:142 find_and_alloc_map kernel/bpf/syscall.c:129 [inline] map_create+0x485/0x2350 kernel/bpf/syscall.c:881 __sys_bpf+0x30a/0x6f0 kernel/bpf/syscall.c:4639 __do_sys_bpf kernel/bpf/syscall.c:4761 [inline] __se_sys_bpf kernel/bpf/syscall.c:4759 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4759 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f6f21e1ce59 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:00007f6f20076028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f6f22095fa0 RCX: 00007f6f21e1ce59 RDX: 0000000000000048 RSI: 00002000000009c0 RDI: 0000000000000000 RBP: 00007f6f21eb2d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f6f22096038 R14: 00007f6f22095fa0 R15: 00007ffd8b5a6b08