rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 0-....: (10202 ticks this GP) idle=e4d4/1/0x4000000000000000 softirq=78580/78582 fqs=4427 rcu: hardirqs softirqs csw/system rcu: number: 722992 0 0 rcu: cputime: 15211 37258 128 ==> 52480(ms) rcu: (t=10500 jiffies g=100381 q=1942 ncpus=2) CPU: 0 PID: 19760 Comm: syz.5.3435 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:get_current arch/x86/include/asm/current.h:41 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x60 kernel/kcov.c:211 Code: 00 00 f3 0f 1e fa 53 48 89 fb e8 13 00 00 00 48 8b 3d 5c a8 04 0d 48 89 de 5b e9 63 bb 57 00 cc cc cc f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0d a0 2c 7c 7e 65 8b 15 a1 2c 7c 7e 81 e2 00 01 ff 00 74 RSP: 0018:ffffc90000007400 EFLAGS: 00000297 RAX: ffffffff89f11b64 RBX: 0000000000000000 RCX: 0000000000000100 RDX: ffff888018380000 RSI: 0000000000000000 RDI: 0000000000000007 RBP: 0000000000000080 R08: ffffffff8e8c316f R09: 1ffffffff1d1862d R10: dffffc0000000000 R11: fffffbfff1d1862e R12: 0000000000000000 R13: dffffc0000000000 R14: 1ffff110049c8b4a R15: 1ffff92000000ebe FS: 00007ff28dc336c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001000 CR3: 000000002c1bb000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: cpu_max_bits_warn include/linux/cpumask.h:143 [inline] cpumask_check include/linux/cpumask.h:150 [inline] cpumask_test_cpu include/linux/cpumask.h:504 [inline] cpu_online include/linux/cpumask.h:1082 [inline] trace_cfg80211_return_bool+0x34/0x1b0 net/wireless/trace.h:2880 cfg80211_rx_mgmt_ext+0x3ea/0x5b0 net/wireless/mlme.c:-1 ieee80211_rx_h_userspace_mgmt net/mac80211/rx.c:3818 [inline] ieee80211_rx_handlers+0x623e/0xb450 net/mac80211/rx.c:4150 ieee80211_invoke_rx_handlers net/mac80211/rx.c:4184 [inline] ieee80211_prepare_and_rx_handle+0x27de/0x6080 net/mac80211/rx.c:5042 ieee80211_rx_for_interface net/mac80211/rx.c:5127 [inline] __ieee80211_rx_handle_packet net/mac80211/rx.c:5300 [inline] ieee80211_rx_list+0x28d4/0x3240 net/mac80211/rx.c:5439 ieee80211_rx_napi+0x1ae/0x3c0 net/mac80211/rx.c:5462 ieee80211_rx include/net/mac80211.h:4971 [inline] ieee80211_handle_queued_frames+0x105/0x190 net/mac80211/main.c:319 tasklet_action_common+0x2d4/0x460 kernel/softirq.c:809 handle_softirqs+0x27d/0x820 kernel/softirq.c:578 __do_softirq kernel/softirq.c:612 [inline] invoke_softirq kernel/softirq.c:452 [inline] __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687 RIP: 0010:generic_exec_single+0x477/0x4e0 kernel/smp.c:418 Code: 75 11 e8 2c 10 0b 00 48 85 db 75 16 e8 22 10 0b 00 eb 15 e8 1b 10 0b 00 e8 a6 cf 14 09 48 85 db 74 ea e8 0c 10 0b 00 fb 31 c0 <48> c7 44 24 20 0e 36 e0 45 4b c7 04 2c 00 00 00 00 43 c7 44 2c 08 RSP: 0018:ffffc9000467fa00 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000200 RCX: ffff888018380000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000467fad0 R08: ffffffff911eb5ff R09: 1ffffffff223d6bf R10: dffffc0000000000 R11: fffffbfff223d6c0 R12: 1ffff920008cff44 R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920008cff65 smp_call_function_single+0x36d/0x5a0 kernel/smp.c:647 task_function_call kernel/events/core.c:120 [inline] perf_install_in_context+0x5bb/0x920 kernel/events/core.c:2958 __do_sys_perf_event_open kernel/events/core.c:12967 [inline] __se_sys_perf_event_open+0x1818/0x1d40 kernel/events/core.c:12609 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7ff28cd9e159 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:00007ff28dc33028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007ff28d026090 RCX: 00007ff28cd9e159 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000480 RBP: 00007ff28ce3506b R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ff28d026128 R14: 00007ff28d026090 R15: 00007ffc1d64eb18