Warning: Permanently added '[localhost]:57435' (ED25519) to the list of known hosts. executing program [ 68.509946][ T5303] [ 68.511003][ T5303] ============================= [ 68.513232][ T5303] WARNING: suspicious RCU usage [ 68.515090][ T5303] 6.13.0-syzkaller-00918-g95ec54a420b8 #0 Not tainted [ 68.518597][ T5303] ----------------------------- [ 68.520497][ T5303] ./include/linux/kvm_host.h:1038 suspicious rcu_dereference_check() usage! [ 68.524006][ T5303] [ 68.524006][ T5303] other info that might help us debug this: [ 68.524006][ T5303] [ 68.527843][ T5303] [ 68.527843][ T5303] rcu_scheduler_active = 2, debug_locks = 1 [ 68.530885][ T5303] no locks held by syz-executor167/5303. [ 68.533072][ T5303] [ 68.533072][ T5303] stack backtrace: [ 68.535185][ T5303] CPU: 0 UID: 0 PID: 5303 Comm: syz-executor167 Not tainted 6.13.0-syzkaller-00918-g95ec54a420b8 #0 [ 68.540050][ T5303] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 68.544954][ T5303] Call Trace: [ 68.546496][ T5303] [ 68.547864][ T5303] dump_stack_lvl+0x241/0x360 [ 68.549961][ T5303] ? __pfx_dump_stack_lvl+0x10/0x10 [ 68.552237][ T5303] ? __pfx__printk+0x10/0x10 [ 68.554352][ T5303] ? irqentry_exit+0x63/0x90 [ 68.556626][ T5303] lockdep_rcu_suspicious+0x226/0x340 [ 68.559085][ T5303] kvm_vcpu_gfn_to_memslot+0x429/0x4c0 [ 68.561104][ T5303] kvm_vcpu_write_guest+0x7c/0x130 [ 68.563004][ T5303] kvm_xen_write_hypercall_page+0x2ff/0x5f0 [ 68.565231][ T5303] ? __pfx_kvm_xen_write_hypercall_page+0x10/0x10 [ 68.567592][ T5303] kvm_set_msr_common+0x150/0x3da0 [ 68.569554][ T5303] ? kvm_clear_async_pf_completion_queue+0x3a7/0x3f0 [ 68.571967][ T5303] ? __pfx_kvm_set_msr_common+0x10/0x10 [ 68.574044][ T5303] ? do_raw_spin_unlock+0x58/0x8b0 [ 68.576007][ T5303] vmx_set_msr+0x15da/0x2790 [ 68.577699][ T5303] ? _raw_spin_unlock+0x28/0x50 [ 68.579513][ T5303] ? kvm_clear_async_pf_completion_queue+0x3a7/0x3f0 [ 68.582046][ T5303] kvm_vcpu_reset+0xbea/0x1740 [ 68.583905][ T5303] ? __pfx_kvm_vcpu_reset+0x10/0x10 [ 68.585866][ T5303] ? __raw_spin_lock_init+0x45/0x100 [ 68.587904][ T5303] kvm_arch_vcpu_create+0x8dc/0xa80 [ 68.589745][ T5303] kvm_vm_ioctl_create_vcpu+0x3d6/0xa00 [ 68.591868][ T5303] kvm_vm_ioctl+0x7e2/0xd30 [ 68.593633][ T5303] ? mark_lock+0x9a/0x360 [ 68.595318][ T5303] ? __pfx_kvm_vm_ioctl+0x10/0x10 [ 68.597253][ T5303] ? tomoyo_path_number_perm+0x206/0x860 [ 68.599502][ T5303] ? __pfx_lock_release+0x10/0x10 [ 68.601554][ T5303] ? tomoyo_path_number_perm+0x679/0x860 [ 68.603588][ T5303] ? tomoyo_path_number_perm+0x679/0x860 [ 68.605745][ T5303] ? tomoyo_path_number_perm+0x6f9/0x860 [ 68.607935][ T5303] ? tomoyo_path_number_perm+0x206/0x860 [ 68.609988][ T5303] ? __pfx_tomoyo_path_number_perm+0x10/0x10 [ 68.612099][ T5303] ? __might_fault+0xaa/0x120 [ 68.613766][ T5303] ? kvm_dev_ioctl+0x1949/0x2460 [ 68.615671][ T5303] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 68.617946][ T5303] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 68.620271][ T5303] ? __pfx_kvm_vm_ioctl+0x10/0x10 [ 68.622167][ T5303] __se_sys_ioctl+0xf5/0x170 [ 68.623927][ T5303] do_syscall_64+0xf3/0x230 [ 68.625649][ T5303] ? clear_bhb_loop+0x35/0x90 [ 68.627346][ T5303] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 68.629459][ T5303] RIP: 0033:0x7f9a62a26369 [ 68.631035][ T5303] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48 [ 68.637897][ T5303] RSP: 002b:00007fff83b20f38 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 68.641038][ T5303] RAX: ffffffffffffffda RBX: 00007fff83b21108 RCX: 00007f9a62a26369 [ 68.644115][ T5303] RDX: 0000000000000000 RSI: 000000000000ae41 RDI: 0000000000000004 [ 68.647083][ T5303] RBP: 00007f9a62a99610 R08: 00007fff83b21108 R09: 00007fff83b21108 [ 68.650068][ T5303] R10: 00007fff83b21108 R11: 0000000000000246 R12: 0000000000000001 [ 68.653112][ T5303] R13: 00007fff83b210f8 R14: 0000000000000001 R15: 0000000000000001 [ 68.656220][ T5303] VM DIAGNOSIS: 00:50:59 Registers: info registers vcpu 0 CPU#0 RAX=0000000000000061 RBX=ffffffff9a70f9a0 RCX=0000000000000000 RDX=00000000000003f8 RSI=0000000000000000 RDI=0000000000000020 RBP=0000000000000000 RSP=ffffc9000d156df0 R8 =ffffffff855567eb R9 =1ffff11003dd7046 R10=dffffc0000000000 R11=ffffffff855567a0 R12=dffffc0000000000 R13=ffffffff9a409f83 R14=0000000000000061 R15=00000000000003f8 RIP=ffffffff8555681e RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 000055557b2cf380 ffffffff 00c00000 GS =0000 ffff88801fc00000 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=0000000020001000 CR3=000000003f048000 CR4=00352ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 Opmask00=0000000000800000 Opmask01=0000000000000001 Opmask02=00000000fff7ffff Opmask03=0000000000000000 Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000 ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f9a62a8ae04 00007f9a62a9e240 ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f9a62aa4a60 00007f9a62a995f8 ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f9a62a8ae04 00007f9a62a9e240 ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2f2f2f2f2f2f2f2f 2f2f2f2f2f2f2f2f 2f2f2f2f2f2f2f2f 2f2f2f2f2f2f2f2f ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 6f6f723d52455355 0036343931373837 373631726f747563 6578652d7a79732f ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 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0000000000000000 0000000000000000 0000000000000000 ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000