rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P9024/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=27745, q=286 ncpus=2)
task:syz.1.777       state:R  running task     stack:19880 pid:9024  tgid:9024  ppid:7221   task_flags:0x40064c flags:0x00004002
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 preempt_schedule_notrace+0xd1/0x110
 preempt_schedule_notrace_thunk+0x16/0x30
 lock_release+0x3ca/0x3e0
 percpu_ref_put+0xf9/0x180
 __mem_cgroup_uncharge_folios+0xf0/0x1c0
 folios_put_refs+0x551/0x640
 shmem_undo_range+0x49e/0x14b0
 shmem_evict_inode+0x272/0xa70
 evict+0x504/0x9c0
 __dentry_kill+0x209/0x660
 dput+0x19f/0x2b0
 __fput+0x68e/0xa70
 task_work_run+0x1d4/0x260
 do_exit+0x6b5/0x2300
 do_group_exit+0x21c/0x2d0
 get_signal+0x1286/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 irqentry_exit_to_user_mode+0x81/0x120
 exc_page_fault+0x9f/0xf0
 asm_exc_page_fault+0x26/0x30
RIP: 0033:0x7fd6d7d8ebb1
RSP: 002b:00000000fffffeb0 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fd6d7fd5fa0 RCX: 00007fd6d7d8eba9
RDX: 0000000000000000 RSI: 00000000fffffeb0 RDI: 0000000002000400
RBP: 00007fd6d7e11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fd6d7fd6038 R14: 00007fd6d7fd5fa0 R15: 00007ffedc38ffc8
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10489 jiffies! g27745 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=10697
rcu: rcu_preempt kthread starved for 10490 jiffies! g27745 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:I stack:27160 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_timeout+0x12b/0x270
 rcu_gp_fqs_loop+0x301/0x1540
 rcu_gp_kthread+0x99/0x390
 kthread+0x711/0x8a0
 ret_from_fork+0x439/0x7d0
 ret_from_fork_asm+0x1a/0x30
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 9073 Comm: syz.1.787 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:lock_acquire+0x58/0x360
Code: 8b 05 bc 60 03 11 48 89 44 24 58 0f 1f 44 00 00 65 8b 05 bf 60 03 11 83 f8 08 0f 83 b8 01 00 00 89 c0 48 0f a3 05 a8 38 06 0e <73> 16 e8 61 02 09 00 84 c0 75 0d f6 05 14 1d f0 0d 01 0f 84 d7 01
RSP: 0018:ffffc900000077e0 EFLAGS: 00000093
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88804b027a98
RBP: ffffffff81ada78b R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1009604f51 R12: 0000000000000000
R13: ffff88804b027a98 R14: 0000000000000000 R15: 0000000000000001
FS:  00007fd6d8c616c0(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f71cff8 CR3: 000000010caee000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 _raw_spin_lock_irqsave+0xa7/0xf0
 hrtimer_try_to_cancel+0x22b/0x420
 hrtimer_cancel+0x3b/0x50
 cpu_clock_event_stop+0xd9/0x130
 __perf_event_overflow+0x580/0xe40
 perf_swevent_hrtimer+0x3c5/0x550
 __hrtimer_run_queues+0x4e0/0xc60
 hrtimer_interrupt+0x45b/0xaa0
 __sysvec_apic_timer_interrupt+0x10b/0x410
 sysvec_apic_timer_interrupt+0xa1/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:rcu_lockdep_current_cpu_online+0xf1/0x120
Code: 7c 00 4c 85 3b 75 1a 48 c7 c7 40 fd 13 8e be 04 00 00 00 e8 11 86 7c 00 83 3d ea 41 6d 0c 00 74 16 b0 01 65 ff 0d cf 14 fa 10 <74> 0f 5b 41 5e 41 5f c3 cc cc cc cc cc 31 c0 eb e8 e8 d9 0b 8d ff
RSP: 0018:ffffc90006617c60 EFLAGS: 00000286
RAX: 1ffffffff1c27e01 RBX: ffffffff8e13f4b0 RCX: 22151eca6a5c9200
RDX: ffff88810f993980 RSI: ffffffff8be33de0 RDI: ffff88804b03afa8
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff897f6691
R10: dffffc0000000000 R11: ffffed10043adc24 R12: ffff888021d6dee0
R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000001
 rcu_read_lock_held+0x1e/0x50
 bpf_sk_storage_free+0xfd/0x230
 __sk_destruct+0x23f/0x660
 inet_release+0x144/0x190
 sock_release+0x85/0x150
 smc_clcsock_release+0xc9/0xf0
 __smc_release+0x66b/0x7e0
 smc_release+0x2ce/0x560
 sock_release+0x85/0x150
 __sys_socketpair+0x518/0x560
 __x64_sys_socketpair+0x9b/0xb0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd6d7d8eba9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd6d8c61038 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fd6d7fd6090 RCX: 00007fd6d7d8eba9
RDX: 0000000000000100 RSI: 0000000000000001 RDI: 000000000000000a
RBP: 00007fd6d7e11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000200000001700 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd6d7fd6128 R14: 00007fd6d7fd6090 R15: 00007ffedc38ffc8
 </TASK>
