rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (0 ticks this GP) idle=753c/1/0x4000000000000000 softirq=42293/42293 fqs=43
rcu: 	(detected by 0, t=10502 jiffies, g=30413, q=217 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 10098 Comm: syz.0.1556 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:__hrtimer_run_queues+0x619/0xc60
Code: 61 01 00 00 e8 48 5c 12 00 48 8b 7c 24 40 e8 6e 1a 9c 09 31 ff 44 89 f6 e8 74 60 12 00 45 85 f6 74 47 48 8b 84 24 b8 00 00 00 <42> 0f b6 04 28 84 c0 4c 8b 74 24 58 0f 85 43 02 00 00 48 8b 44 24
RSP: 0018:ffffc90000a08d40 EFLAGS: 00000002
RAX: 1ffff1102e13a66f RBX: ffff88823c627d08 RCX: 0000000000010000
RDX: ffff88817674ba00 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000a08e90 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000141184 R12: ffff8881709d3340
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff88823c627cc0
FS:  00007f541b84f6c0(0000) GS:ffff8882a9f35000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000013000 CR3: 0000000176874000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 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:kasan_check_range+0x9f/0x2c0
Code: 00 fc ff df 4d 8d 34 19 4d 89 f4 4d 29 dc 49 83 fc 10 7f 29 4d 85 e4 0f 84 41 01 00 00 4c 89 cb 48 f7 d3 4c 01 fb 41 80 3b 00 <0f> 85 de 01 00 00 49 ff c3 48 ff c3 75 ee e9 21 01 00 00 44 89 dd
RSP: 0018:ffffc90003fcf168 EFLAGS: 00000246
RAX: ffff888112ea7e01 RBX: ffffffffffffffff RCX: ffffffff822ff870
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888112ea7e7c
RBP: ffffc90003fcf248 R08: ffff888112ea7e7f R09: 1ffff110225d4fcf
R10: dffffc0000000000 R11: ffffed10225d4fcf R12: 0000000000000001
R13: 0000000000000001 R14: ffffed10225d4fd0 R15: 1ffff110225d4fcf
 __set_page_owner+0x160/0x4c0
 post_alloc_hook+0x240/0x2a0
 get_page_from_freelist+0x2365/0x2440
 __alloc_frozen_pages_noprof+0x181/0x370
 alloc_pages_mpol+0x232/0x4a0
 vma_alloc_folio_noprof+0xe4/0x200
 folio_prealloc+0x30/0x180
 __handle_mm_fault+0x2a86/0x5440
 handle_mm_fault+0x40a/0x8e0
 do_user_addr_fault+0x764/0x1380
 exc_page_fault+0x82/0x100
 asm_exc_page_fault+0x26/0x30
RIP: 0010:rep_movs_alternative+0x33/0x90
Code: 73 25 85 c9 74 0f 8a 06 88 07 48 ff c7 48 ff c6 48 ff c9 75 f1 e9 4d 32 04 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 06 <48> 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 db 83 f9 08 73 e8 eb
RSP: 0018:ffffc90003fcfb88 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000000008
RDX: 0000000000000000 RSI: ffffc90003fcfc20 RDI: 0000200000013000
RBP: ffffc90003fcfc90 R08: ffffc90003fcfc27 R09: 1ffff920007f9f84
R10: dffffc0000000000 R11: fffff520007f9f85 R12: 0000200000013008
R13: 00007ffffffff000 R14: ffffc90003fcfc20 R15: 0000200000013000
 _copy_to_user+0x8a/0xb0
 msr_read+0x177/0x250
 vfs_read+0x200/0xa30
 ksys_read+0x145/0x250
 do_syscall_64+0xfa/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f541a98efc9
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:00007f541b84f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f541abe5fa0 RCX: 00007f541a98efc9
RDX: 0000000000018ff8 RSI: 0000200000002700 RDI: 0000000000000003
RBP: 00007f541aa11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f541abe6038 R14: 00007f541abe5fa0 R15: 00007fffad986ec8
 </TASK>
rcu: rcu_preempt kthread starved for 10285 jiffies! g30413 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R  running task     stack:27224 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
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+0x4bc/0x870
 ret_from_fork_asm+0x1a/0x30
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 5810 Comm: syz-executor 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:smp_call_function_many_cond+0xd38/0x12d0
Code: 89 ee 83 e6 01 31 ff e8 b6 73 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 07 e8 61 6f 0b 00 eb 38 f3 90 42 0f b6 04 2b <84> c0 75 11 41 f7 04 24 01 00 00 00 74 1e e8 45 6f 0b 00 eb e4 44
RSP: 0000:ffffc9000738f700 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 1ffff110478c7ffd RCX: ffff88810a24ba00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000738f880 R08: ffffffff8f7d0177 R09: 1ffffffff1efa02e
R10: dffffc0000000000 R11: fffffbfff1efa02f R12: ffff88823c63ffe8
R13: dffffc0000000000 R14: ffff88812123b240 R15: 0000000000000001
FS:  000055558ec1c500(0000) GS:ffff88818eb35000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055558ec375c8 CR3: 000000011164a000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 on_each_cpu_cond_mask+0x3f/0x80
 flush_tlb_mm_range+0x6b1/0x12d0
 ptep_clear_flush+0x120/0x170
 do_wp_page+0x1bc2/0x5800
 __handle_mm_fault+0x102e/0x5440
 handle_mm_fault+0x40a/0x8e0
 do_user_addr_fault+0xa7c/0x1380
 exc_page_fault+0x82/0x100
 asm_exc_page_fault+0x26/0x30
RIP: 0033:0x7f541a94d31f
Code: 8d 34 19 48 39 d5 48 89 75 60 0f 95 c2 48 29 d8 48 83 c1 10 0f b6 d2 48 83 c8 01 48 c1 e2 02 48 09 da 48 83 ca 01 48 89 51 f8 <48> 89 46 08 eb 80 48 8d 0d c1 e7 0e 00 48 8d 15 c5 f9 0e 00 bf 01
RSP: 002b:00007fffad9870f0 EFLAGS: 00010206
RAX: 0000000000018a41 RBX: 0000000000008040 RCX: 000055558ec2f590
RDX: 0000000000008041 RSI: 000055558ec375c0 RDI: 0000000000000004
RBP: 00007f541abb7cc0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000001000 R11: 0000000000000802 R12: 0000000000008030
R13: 0000000000000076 R14: 00007f541abb7d20 R15: 0000000000000000
 </TASK>
