rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10332 ticks this GP) idle=80e4/1/0x4000000000000000 softirq=37557/37558 fqs=4831
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1065661          2            0
rcu: 	cputime:    16661      35828           74   ==> 52510(ms)
rcu: 	(t=10503 jiffies g=49877 q=2309 ncpus=2)
CPU: 1 PID: 11610 Comm: syz.0.1797 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:arch_stack_walk+0x0/0x190 arch/x86/kernel/stacktrace.c:17
Code: ff ff e8 c3 5c 54 00 31 c0 e6 d4 48 c7 c7 60 5d 15 8d 48 89 de 5b 41 5e 41 5f 5d e9 3a fb 65 09 cc cc cc cc cc cc cc cc cc cc <66> 0f 1f 00 55 48 89 e5 41 57 41 56 41 54 53 48 83 ec 68 49 89 cf
RSP: 0018:ffffc900001f0818 EFLAGS: 00000246
RAX: ffffc900001f0840 RBX: 1ffff9200003e104 RCX: 0000000000000000
RDX: ffff88802bd08000 RSI: ffffc900001f0840 RDI: ffffffff81760ea0
RBP: ffffc900001f08b0 R08: 0000000000000004 R09: 0000000000000000
R10: ffffc900001f08c0 R11: fffffbfff223dcc0 R12: 0000000000000000
R13: ffffc900001f0ba0 R14: dffffc0000000000 R15: ffffc900001f08c0
FS:  00007fd5cc6076c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc82baff32 CR3: 00000000770cc000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 stack_trace_save+0xaa/0x100 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4e/0x70 mm/kasan/common.c:53
 kasan_save_free_info+0x28/0x40 mm/kasan/generic.c:522
 ____kasan_slab_free+0x126/0x1f0 mm/kasan/common.c:237
 kasan_slab_free include/linux/kasan.h:164 [inline]
 slab_free_hook mm/slub.c:1811 [inline]
 slab_free_freelist_hook+0x130/0x1a0 mm/slub.c:1837
 slab_free mm/slub.c:3830 [inline]
 kmem_cache_free+0xf8/0x290 mm/slub.c:3852
 rcu_do_batch kernel/rcu/tree.c:2194 [inline]
 rcu_core+0x9c1/0x17f0 kernel/rcu/tree.c:2467
 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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:preempt_schedule_irq+0xba/0x150 kernel/sched/core.c:7011
Code: 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 6f bf 01 00 00 00 e8 d1 3b c5 f6 e8 ec 36 f6 f6 fb bf 01 00 00 00 <e8> 31 b4 ff ff 43 c6 44 37 08 00 48 c7 44 24 40 00 00 00 00 9c 8f
RSP: 0018:ffffc90004fb7980 EFLAGS: 00000282
RAX: ff17fc0bc6738200 RBX: 0000000000000000 RCX: ff17fc0bc6738200
RDX: dffffc0000000000 RSI: ffffffff8acacbe0 RDI: 0000000000000001
RBP: ffffc90004fb7a20 R08: ffffffff911ee5ff R09: 1ffffffff223dcbf
R10: dffffc0000000000 R11: fffffbfff223dcc0 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920009f6f30
 irqentry_exit+0x67/0x70 kernel/entry/common.c:438
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:kasan_mem_to_shadow include/linux/kasan.h:61 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:127 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:178 [inline]
RIP: 0010:kasan_check_range+0x4b/0x290 mm/kasan/generic.c:187
Code: 82 13 02 00 00 49 89 f9 49 c1 e9 2f 41 81 f9 ff ff 01 00 0f 82 ff 01 00 00 49 89 ff 49 c1 ef 03 49 ba 00 00 00 00 00 fc ff df <4f> 8d 1c 17 49 ff c8 4d 89 c1 49 c1 e9 03 48 bb 01 00 00 00 00 fc
RSP: 0018:ffffc90004fb7ae8 EFLAGS: 00000a06
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff816908b6
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e8c7e28
RBP: ffffc90004fb7c30 R08: ffffffff8e8c7e30 R09: 000000000001ffff
R10: dffffc0000000000 R11: fffffbfff223dcc0 R12: ffffffff81af7f93
R13: dffffc0000000000 R14: ffff88802a119440 R15: 1ffffffff1d18fc5
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 cpumask_test_cpu include/linux/cpumask.h:504 [inline]
 cpu_online include/linux/cpumask.h:1082 [inline]
 trace_lock_release include/trace/events/lock.h:69 [inline]
 lock_release+0xa6/0x8c0 kernel/locking/lockdep.c:5765
 __mutex_unlock_slowpath+0xcc/0x6c0 kernel/locking/mutex.c:907
 __do_sys_perf_event_open kernel/events/core.c:12952 [inline]
 __se_sys_perf_event_open+0x1853/0x1c60 kernel/events/core.c:12601
 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: 0033:0x7fd5cb79e0d9
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:00007fd5cc607028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fd5cba25fa0 RCX: 00007fd5cb79e0d9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000140
RBP: 00007fd5cb835024 R08: 0000000000000002 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd5cba26038 R14: 00007fd5cba25fa0 R15: 00007ffe04e49c28
 </TASK>