rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P6034/1:b..l
rcu: 	(detected by 0, t=10503 jiffies, g=6513, q=950881 ncpus=2)
task:syz.3.32        state:R  running task     stack:28048 pid:6034  tgid:6033  ppid:5821   task_flags:0x400040 flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5378 [inline]
 __schedule+0xf43/0x5890 kernel/sched/core.c:6765
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7087
 irqentry_exit+0x36/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:in_gate_area_no_mm+0xe/0x70 arch/x86/entry/vsyscall/vsyscall_64.c:321
Code: 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 54 45 31 e4 55 53 48 89 fb <e8> 3d fc 8d 00 8b 2d 0f cc 7e 0c bf 02 00 00 00 89 ee e8 2b f7 8d
RSP: 0018:ffffc90004a9f800 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 00007f475a58d169 RCX: 0000000000000000
RDX: 1ffff92000953f15 RSI: 0000000000000006 RDI: 00007f475a58d169
RBP: ffffc90004a9f8a8 R08: ffffffff90ef627c R09: ffffffff90ef61ba
R10: ffffc90004a9f860 R11: 0000000000000001 R12: 0000000000000000
R13: ffffc90004a9f920 R14: 0000000000000000 R15: ffff888036e20000
 is_kernel_text include/linux/kallsyms.h:31 [inline]
 core_kernel_text kernel/extable.c:68 [inline]
 kernel_text_address+0x35/0x100 kernel/extable.c:99
 __kernel_text_address+0xd/0x40 kernel/extable.c:79
 unwind_get_return_address+0x59/0xa0 arch/x86/kernel/unwind_orc.c:369
 arch_stack_walk+0xa7/0x100 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
 save_stack+0x162/0x1f0 mm/page_owner.c:156
 __reset_page_owner+0x8d/0x400 mm/page_owner.c:297
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0x6db/0xfb0 mm/page_alloc.c:2660
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_kmalloc+0x8a/0xb0 mm/kasan/common.c:385
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4294 [inline]
 __kmalloc_node_noprof+0x21f/0x510 mm/slub.c:4300
 kmalloc_array_node_noprof include/linux/slab.h:1018 [inline]
 alloc_slab_obj_exts+0x41/0xa0 mm/slub.c:1964
 __memcg_slab_post_alloc_hook+0x2a7/0x9b0 mm/memcontrol.c:2995
 memcg_slab_post_alloc_hook mm/slub.c:2152 [inline]
 slab_post_alloc_hook mm/slub.c:4125 [inline]
 slab_alloc_node mm/slub.c:4164 [inline]
 kmem_cache_alloc_noprof+0x366/0x3d0 mm/slub.c:4171
 alloc_empty_file+0x73/0x1e0 fs/file_table.c:233
 alloc_file fs/file_table.c:350 [inline]
 alloc_file_pseudo+0x13b/0x230 fs/file_table.c:379
 sock_alloc_file+0x50/0x210 net/socket.c:470
 sock_map_fd net/socket.c:500 [inline]
 __sys_socket+0x1c2/0x260 net/socket.c:1699
 __do_sys_socket net/socket.c:1704 [inline]
 __se_sys_socket net/socket.c:1702 [inline]
 __x64_sys_socket+0x72/0xb0 net/socket.c:1702
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f475a58d169
RSP: 002b:00007f475b358038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f475a7a5fa0 RCX: 00007f475a58d169
RDX: 0000000000000010 RSI: 0000000000000003 RDI: 0000000000000010
RBP: 00007f475a60e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f475a7a5fa0 R15: 00007ffc0b439b48
 </TASK>