=============================
WARNING: suspicious RCU usage
6.13.0-syzkaller-00918-g95ec54a420b8 #0 Not tainted
-----------------------------
./include/linux/kvm_host.h:1036 suspicious rcu_dereference_check() usage!

other info that might help us debug this:


rcu_scheduler_active = 2, debug_locks = 1
no locks held by syz.3.168/6991.

stack backtrace:
CPU: 2 UID: 0 PID: 6991 Comm: syz.3.168 Not tainted 6.13.0-syzkaller-00918-g95ec54a420b8 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 lockdep_rcu_suspicious+0x210/0x3c0 kernel/locking/lockdep.c:6845
 __kvm_memslots include/linux/kvm_host.h:1036 [inline]
 __kvm_memslots include/linux/kvm_host.h:1033 [inline]
 kvm_vcpu_memslots include/linux/kvm_host.h:1050 [inline]
 kvm_vcpu_gfn_to_memslot+0x48c/0x590 virt/kvm/kvm_main.c:2554
 kvm_vcpu_write_guest_page virt/kvm/kvm_main.c:3238 [inline]
 kvm_vcpu_write_guest+0x68/0x130 virt/kvm/kvm_main.c:3274
 kvm_xen_write_hypercall_page+0x2fa/0x530 arch/x86/kvm/xen.c:1299
 kvm_set_msr_common+0x142a/0x35b0 arch/x86/kvm/x86.c:3751
 vmx_set_msr+0xbdd/0x3d30 arch/x86/kvm/vmx/vmx.c:2487
 __kvm_set_msr arch/x86/kvm/x86.c:1877 [inline]
 kvm_vcpu_reset+0x9ca/0x1a10 arch/x86/kvm/x86.c:12456
 kvm_arch_vcpu_create+0x724/0xae0 arch/x86/kvm/x86.c:12305
 kvm_vm_ioctl_create_vcpu virt/kvm/kvm_main.c:4106 [inline]
 kvm_vm_ioctl+0xf93/0x3df0 virt/kvm/kvm_main.c:5019
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl fs/ioctl.c:892 [inline]
 __x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892
 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: 0033:0x7f29eeb85d29
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:00007f29ec9f6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f29eed75fa0 RCX: 00007f29eeb85d29
RDX: 0000000000000000 RSI: 000000000000ae41 RDI: 0000000000000004
RBP: 00007f29eec01b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f29eed75fa0 R15: 00007ffd1e9fbec8
 </TASK>