rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2672 jiffies s: 19129 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: 9384 Comm: syz.2.1524 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:hlock_class kernel/locking/lockdep.c:228 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4728 [inline]
RIP: 0010:__lock_acquire+0x54c/0x7c40 kernel/locking/lockdep.c:5013
Code: e3 ff 1f 00 00 41 c1 ec 03 41 81 e4 f8 03 00 00 49 8d bc 24 40 f2 b0 90 be 08 00 00 00 e8 0c 74 6f 00 48 0f a3 1d 14 ed 4c 0f <73> 1f 48 8d 04 5b c1 e0 06 48 8d 98 00 71 49 90 48 ba 00 00 00 00
RSP: 0018:ffffc900000070c0 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 000000000000002d RCX: ffffffff81640524
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90b0f240
RBP: ffffc900000072f0 R08: ffffffff90b0f247 R09: 1ffffffff2161e48
R10: dffffc0000000000 R11: fffffbfff2161e49 R12: 0000000000000000
R13: ffff88804ce78000 R14: 0000000000000000 R15: ffff88804ce78b50
FS: 00007fc0a1e2c6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc0a1da7ff8 CR3: 0000000077e44000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
lock_acquire+0x1bb/0x4a0 kernel/locking/lockdep.c:5678
rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
rcu_read_lock include/linux/rcupdate.h:791 [inline]
trace_call_bpf+0xe0/0x6b0 kernel/trace/bpf_trace.c:134
perf_trace_run_bpf_submit+0x79/0x1c0 kernel/events/core.c:10037
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 32 7b 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:ffffc90000007760 EFLAGS: 00000206
RAX: 2edaa6aae0e0e500 RBX: 1ffff92000000ef4 RCX: 2edaa6aae0e0e500
RDX: dffffc0000000000 RSI: ffffffff8a8c18a0 RDI: ffffffff8adf68a0
RBP: ffffc90000007860 R08: ffffffff90b0f337 R09: 1ffffffff2161e66
R10: dffffc0000000000 R11: fffffbfff2161e67 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8e3bb00 R15: 0000000000000001
__rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
rcu_read_unlock include/linux/rcupdate.h:823 [inline]
ndisc_send_skb+0xdc2/0x1520 net/ipv6/ndisc.c:521
addrconf_rs_timer+0x367/0x640 net/ipv6/addrconf.c:3986
call_timer_fn+0x1ac/0x670 kernel/time/timer.c:1701
expire_timers kernel/time/timer.c:1752 [inline]
__run_timers+0x56c/0x810 kernel/time/timer.c:2023
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:2036
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:kasan_mem_to_shadow include/linux/kasan.h:59 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [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+0x44/0x290 mm/kasan/generic.c:189
Code: 82 0e 02 00 00 49 89 f8 49 c1 e8 2f 41 81 f8 ff ff 01 00 0f 82 fa 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
RSP: 0018:ffffc900032671d0 EFLAGS: 00000a06
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff8163fdd5
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e20b468
RBP: ffffc90003267308 R08: 000000000001ffff R09: 0000000000000000
R10: dffffc0000000000 R11: fffff5200064ce54 R12: dffffc0000000001
R13: 1ffff9200064ce4c R14: 1ffffffff1c4168d R15: dffffc0000000000
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_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0x3d5/0x4a0 kernel/locking/lockdep.c:5649
__raw_spin_trylock include/linux/spinlock_api_smp.h:90 [inline]
_raw_spin_trylock+0x43/0x70 kernel/locking/spinlock.c:138
spin_trylock include/linux/spinlock.h:361 [inline]
free_unref_page+0x16c/0x3f0 mm/page_alloc.c:3530
__vunmap+0x874/0xa40 mm/vmalloc.c:2783
bpf_check+0xae3a/0x11010 kernel/bpf/verifier.c:15731
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: 0033:0x7fc0a0f9e159
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:00007fc0a1e2c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fc0a1225fa0 RCX: 00007fc0a0f9e159
RDX: 0000000000000094 RSI: 0000200000000140 RDI: 0000000000000005
RBP: 00007fc0a103506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc0a1226038 R14: 00007fc0a1225fa0 R15: 00007ffc3f206f78