rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2635 jiffies s: 38317 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: 10741 Comm: syz.3.1638 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
RIP: 0010:__cant_migrate+0x6/0x2f0 kernel/sched/core.c:10005
Code: 80 c1 03 38 c1 7c b5 41 89 f6 41 89 d5 e8 72 f9 78 00 44 89 ea 44 89 f6 eb a2 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 <41> 56 41 55 41 54 53 48 83 e4 e0 48 81 ec a0 00 00 00 65 48 8b 04
RSP: 0018:ffffc900001e07a8 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffc90004a17000 RCX: dffffc0000000000
RDX: 0000000000000100 RSI: 000000000000024e RDI: ffffffff8a918d80
RBP: ffffc900001e07b0 R08: dffffc0000000000 R09: 1ffffffff2161e48
R10: dffffc0000000000 R11: fffffbfff2161e49 R12: ffffffff8cb80420
R13: ffff88805494dd18 R14: ffff88805494dd28 R15: 0000000000000001
FS:  00007fc84146a6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc841449d58 CR3: 0000000037411000 CR4: 00000000003506e0
DR0: 0000200000000300 DR1: 0000000000000b6e DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __bpf_prog_run include/linux/filter.h:590 [inline]
 bpf_prog_run include/linux/filter.h:614 [inline]
 bpf_prog_run_array include/linux/bpf.h:1668 [inline]
 trace_call_bpf+0x2e8/0x6b0 kernel/trace/bpf_trace.c:135
 perf_trace_run_bpf_submit+0x79/0x1c0 kernel/events/core.c:10027
 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 a2 7c 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: e2c5c8975b2ebd00 RBX: 1ffff9200003c164 RCX: e2c5c8975b2ebd00
RDX: dffffc0000000000 RSI: ffffffff8a8c17a0 RDI: ffffffff8adf5de0
RBP: ffffc900001e0bd0 R08: ffff8880b8f3580b R09: 1ffff110171e6b01
R10: dffffc0000000000 R11: ffffed10171e6b02 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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:244 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x4/0x80 kernel/kcov.c:313
Code: 77 22 89 ff 89 f6 49 ff c0 4c 89 01 48 c7 44 11 08 03 00 00 00 48 89 7c 11 10 48 89 74 11 18 48 89 44 11 20 c3 90 48 8b 04 24 <65> 48 8b 15 e4 37 80 7e 65 8b 0d e5 37 80 7e 81 e1 00 01 ff 00 74
RSP: 0018:ffffc9000469f418 EFLAGS: 00000246
RAX: ffffffff8191c427 RBX: 000000000000000c RCX: e2c5c8975b2ebd00
RDX: ffffc90005b59000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000469fb90 R08: 0000000000000003 R09: ffffc9000469f2e0
R10: 00000000397e2616 R11: 00000000ffde5244 R12: ffffc90004af1000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88801e73c030
 add_subprog_and_kfunc kernel/bpf/verifier.c:2136 [inline]
 bpf_check+0xc77/0x11000 kernel/bpf/verifier.c:15553
 bpf_prog_load+0x100e/0x1530 kernel/bpf/syscall.c:2651
 __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: 0033:0x7fc84059de99
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:00007fc84146a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fc840825fa0 RCX: 00007fc84059de99
RDX: 0000000000000094 RSI: 0000200000000380 RDI: 0000000000000005
RBP: 00007fc840633eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc840826038 R14: 00007fc840825fa0 R15: 00007ffed8a11d78
 </TASK>