rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2666 jiffies s: 171329 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: 2188 Comm: syz.0.7591 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:kasan_check_range+0x0/0x290 mm/kasan/generic.c:188
Code: 48 01 c6 48 89 c7 e8 bf 2c 5b 08 31 c0 c3 0f 0b b8 ea ff ff ff c3 0f 0b b8 ea ff ff ff c3 00 00 cc cc 00 00 cc cc 00 00 cc cc <b0> 01 48 85 f6 0f 84 ac 01 00 00 55 41 57 41 56 41 54 53 49 89 f8
RSP: 0018:ffffc900000073d8 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8164c000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e1ff428
RBP: ffffc900000074f0 R08: ffffc900000072e7 R09: 1ffff92000000e5c
R10: dffffc0000000000 R11: fffff52000000e5d R12: 0000000000120000
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000000e88
FS:  00007f6fd7ead6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f657c7456b8 CR3: 000000005ed5f000 CR4: 00000000003506f0
DR0: 0000200000000300 DR1: 0100000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 instrument_atomic_read include/linux/instrumented.h:72 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 cpumask_test_cpu include/linux/cpumask.h:444 [inline]
 cpu_online include/linux/cpumask.h:1030 [inline]
 trace_lock_release include/trace/events/lock.h:69 [inline]
 lock_release+0xc0/0x920 kernel/locking/lockdep.c:5673
 rcu_lock_release include/linux/rcupdate.h:355 [inline]
 rcu_read_unlock include/linux/rcupdate.h:824 [inline]
 trace_call_bpf+0x5ca/0x6b0 kernel/trace/bpf_trace.c:137
 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 d2 33 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:ffffc90000007820 EFLAGS: 00000206
RAX: 42cb15b59a4f9200 RBX: 1ffff92000000f0c RCX: 42cb15b59a4f9200
RDX: dffffc0000000000 RSI: ffffffff8a8c1120 RDI: ffffffff8adf13a0
RBP: ffffc90000007908 R08: ffffffff90af9357 R09: 1ffffffff215f26a
R10: dffffc0000000000 R11: fffffbfff215f26b R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8e3b900 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 arp_xmit+0x20e/0x260 net/ipv4/arp.c:667
 arp_solicit+0xc01/0xe40 net/ipv4/arp.c:392
 neigh_probe net/core/neighbour.c:1080 [inline]
 neigh_timer_handler+0xaaa/0x1080 net/core/neighbour.c:1162
 call_timer_fn+0x1ac/0x670 kernel/time/timer.c:1701
 expire_timers kernel/time/timer.c:1752 [inline]
 __run_timers+0x53e/0x800 kernel/time/timer.c:2023
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:2036
 handle_softirqs+0x2a1/0x930 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:preempt_count_sub+0x1b/0x160 kernel/sched/core.c:5738
Code: 8e e8 99 95 7a 00 89 df e9 5b ff ff ff 66 90 55 53 48 bb 00 00 00 00 00 fc ff df 48 c7 c0 40 01 c0 96 48 c1 e8 03 0f b6 04 18 <84> c0 0f 85 bd 00 00 00 83 3d 26 15 67 15 00 75 25 65 8b 05 25 83
RSP: 0018:ffffc9000cae76f8 EFLAGS: 00000a06
RAX: 0000000000000004 RBX: dffffc0000000000 RCX: ffffc9000cae7f28
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffffff8ea5bea2 R08: ffffc9000cae7847 R09: ffffc9000cae7838
R10: dffffc0000000000 R11: fffff5200195cf09 R12: ffffc9000cae0000
R13: dffffc0000000000 R14: ffffc9000cae77f8 R15: ffffc9000cae7f20
 unwind_next_frame+0x1880/0x20b0 arch/x86/kernel/unwind_orc.c:629
 arch_stack_walk+0x10c/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xa6/0xf0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 ____kasan_kmalloc mm/kasan/common.c:375 [inline]
 __kasan_kmalloc+0x8e/0xa0 mm/kasan/common.c:384
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __do_kmalloc_node mm/slab_common.c:936 [inline]
 __kmalloc_node+0xb0/0x240 mm/slab_common.c:943
 kmalloc_node include/linux/slab.h:589 [inline]
 kvmalloc_node+0x6c/0x180 mm/util.c:581
 kvmalloc include/linux/slab.h:716 [inline]
 kvmalloc_array include/linux/slab.h:734 [inline]
 kvcalloc include/linux/slab.h:739 [inline]
 env_resolve_init kernel/bpf/btf.c:1695 [inline]
 btf_check_all_types kernel/bpf/btf.c:4722 [inline]
 btf_parse_type_sec+0x18f/0x18d0 kernel/bpf/btf.c:4769
 btf_parse kernel/bpf/btf.c:5043 [inline]
 btf_new_fd+0x46a/0x780 kernel/bpf/btf.c:6914
 __sys_bpf+0x612/0x780 kernel/bpf/syscall.c:5076
 __do_sys_bpf kernel/bpf/syscall.c:5135 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5133 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5133
 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: 0033:0x7f6fd6f9cdd9
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:00007f6fd7ead028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f6fd7215fa0 RCX: 00007f6fd6f9cdd9
RDX: 0000000000000028 RSI: 00002000000003c0 RDI: 0000000000000012
RBP: 00007f6fd7032d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6fd7216038 R14: 00007f6fd7215fa0 R15: 00007ffc99741898
 </TASK>