rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (1 GPs behind) idle=f3f/1/0x4000000000000000 softirq=17342/17350 fqs=5226 
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P7848
	(detected by 1, t=10502 jiffies, g=19217, q=2391)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7848 Comm: syz.2.1219 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:lock_is_held_type+0x3/0x190 kernel/locking/lockdep.c:5651
Code: 00 75 d6 48 c7 c7 80 2a 2b 8a 48 c7 c6 c0 2a 2b 8a e8 f1 12 f5 ff 0f 0b eb bf e8 98 fd ff ff 0f 1f 84 00 00 00 00 00 55 41 57 <41> 56 41 55 41 54 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89
RSP: 0018:ffffc90002fdf568 EFLAGS: 00000002
RAX: 1ffffffff1864601 RBX: 0000000000000001 RCX: 5e88cc1e9ae91100
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff8c31ef60
RBP: ffffc90002fdf6b0 R08: ffffc90002fdf637 R09: ffffc90002fdf620
R10: dffffc0000000000 R11: fffff520005fbec7 R12: 1ffff920005fbec0
R13: ffffc90002fdf700 R14: 0000000000000008 R15: ffff888073cb41a8
FS:  0000555592418500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c325c37 CR3: 000000007b710000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 __perf_output_begin kernel/events/ring_buffer.c:170 [inline]
 perf_output_begin_forward+0x1af/0xa30 kernel/events/ring_buffer.c:271
 __perf_event_output kernel/events/core.c:7804 [inline]
 perf_event_output_forward+0x19b/0x2e0 kernel/events/core.c:7822
 __perf_event_overflow+0x35f/0x550 kernel/events/core.c:9515
 perf_tp_event+0x324/0xbe0 kernel/events/core.c:10047
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10021
 perf_trace_preemptirq_template+0x2aa/0x360 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0x108/0x180 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713
RIP: 0010:rcu_read_unlock_special+0x7f/0x4a0 kernel/rcu/tree_plugin.h:674
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 02 20 9d 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc90002fdfce0 EFLAGS: 00000206
RAX: 5e88cc1e9ae91100 RBX: 1ffff920005fbfa0 RCX: 5e88cc1e9ae91100
RDX: dffffc0000000000 RSI: ffffffff8a2b2be0 RDI: ffffffff8a7a4200
RBP: ffffc90002fdfda8 R08: ffffffff901ee0cf R09: 1ffffffff203dc19
R10: dffffc0000000000 R11: fffffbfff203dc1a R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000246 R15: ffffffff8c3234a0
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422
 rcu_read_unlock+0x85/0x90 include/linux/rcupdate.h:772
 dput+0xc0/0x1a0 fs/dcache.c:886
 __fput+0x5a5/0x8c0 fs/file_table.c:319
 task_work_run+0x125/0x1a0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f117a5da0d9
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:00007ffc03e4af98 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f117a863da0 RCX: 00007f117a5da0d9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f117a863da0 R08: 00007f117a862038 R09: 0000000000000000
R10: 00000000003ffcc8 R11: 0000000000000246 R12: 000000000004c266
R13: 00007f117a86209c R14: 000000000004bffb R15: 00007f117a862090
 </TASK>
task:syz.2.1219      state:R  running task     stack:25904 pid: 7848 ppid:  4188 flags:0x0000400c
Call Trace:
 <TASK>
 </TASK>