WARNING in free_loaded

Title	Replies (including bot)	Last reply
[PATCH] KVM: x86: Forcibly leave nested virt when SMM state is toggled	9 (9)	2022/02/24 18:59
[PATCH 5.16 000/200] 5.16.5-rc1 review	218 (218)	2022/02/14 15:34
[PATCH 5.10 00/25] 5.10.97-rc1 review	41 (41)	2022/02/05 14:30
[PATCH 5.15 000/171] 5.15.19-rc1 review	181 (181)	2022/02/02 00:26
[syzbot] WARNING in free_loaded_vmcs (3)	1 (2)	2022/01/25 20:21

Title

Replies (including bot)

Last reply

[PATCH] KVM: x86: Forcibly leave nested virt when SMM state is toggled

9 (9)

2022/02/24 18:59

[PATCH 5.16 000/200] 5.16.5-rc1 review

218 (218)

2022/02/14 15:34

[PATCH 5.10 00/25] 5.10.97-rc1 review

41 (41)

2022/02/05 14:30

[PATCH 5.15 000/171] 5.15.19-rc1 review

181 (181)

2022/02/02 00:26

[syzbot] WARNING in free_loaded_vmcs (3)

1 (2)

2022/01/25 20:21

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	WARNING in free_loaded_vmcs (2) kvm-x86	-1	syz	done		5	2879d	2900d	11/29	fixed on 2019/04/02 11:50
linux-4.19	WARNING in free_loaded_vmcs	-1	C		error	2	1643d	1643d	0/1	upstream: reported C repro on 2022/01/22 18:03
upstream	WARNING in free_loaded_vmcs kvm-x86	-1	C			170	3159d	3166d	4/29	fixed on 2018/01/25 08:31

------------[ cut here ]------------ WARNING: CPU: 0 PID: 3606 at arch/x86/kvm/vmx/vmx.c:2665 free_loaded_vmcs arch/x86/kvm/vmx/vmx.c:2665 [inline] WARNING: CPU: 0 PID: 3606 at arch/x86/kvm/vmx/vmx.c:2665 free_loaded_vmcs+0x158/0x1a0 arch/x86/kvm/vmx/vmx.c:2656 Modules linked in: CPU: 1 PID: 3606 Comm: syz-executor725 Not tainted 5.17.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:free_loaded_vmcs arch/x86/kvm/vmx/vmx.c:2665 [inline] RIP: 0010:free_loaded_vmcs+0x158/0x1a0 arch/x86/kvm/vmx/vmx.c:2656 Code: 81 e8 bc 8c 4c 00 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 75 49 48 8b 2b e9 25 ff ff ff e8 38 17 58 00 <0f> 0b eb b3 e8 8f 4d 9f 00 e9 f7 fe ff ff 48 89 df e8 92 4d 9f 00 RSP: 0018:ffffc90001d2f890 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888079c1a2e8 RCX: 0000000000000000 RDX: ffff888021b65700 RSI: ffffffff81204388 RDI: ffff888079c1a2f0 RBP: ffff88807594d000 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817ea048 R11: 0000000000000001 R12: 0000000000000000 R13: ffff888079c18000 R14: 0000000000000003 R15: ffffc90001d2f918 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc975b8a328 CR3: 000000007f686000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> kvm_arch_vcpu_destroy+0x72/0x2f0 arch/x86/kvm/x86.c:11123 kvm_vcpu_destroy arch/x86/kvm/../../../virt/kvm/kvm_main.c:441 [inline] kvm_destroy_vcpus+0x11f/0x290 arch/x86/kvm/../../../virt/kvm/kvm_main.c:460 kvm_free_vcpus arch/x86/kvm/x86.c:11564 [inline] kvm_arch_destroy_vm+0x2e8/0x470 arch/x86/kvm/x86.c:11676 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:1217 [inline] kvm_put_kvm+0x4fa/0xb00 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1250 kvm_vm_release+0x3f/0x50 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1273 __fput+0x286/0x9f0 fs/file_table.c:311 task_work_run+0xdd/0x1a0 kernel/task_work.c:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0xb29/0x2a30 kernel/exit.c:806 do_group_exit+0xd2/0x2f0 kernel/exit.c:935 get_signal+0x4b0/0x28c0 kernel/signal.c:2862 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fc975b35729 Code: Unable to access opcode bytes at RIP 0x7fc975b356ff. RSP: 002b:00007fc975ae5308 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fc975bbe408 RCX: 00007fc975b35729 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fc975bbe408 RBP: 00007fc975bbe400 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc975bbe40c R13: 00007fc975b8b0b8 R14: 6d766b2f7665642f R15: 0000000000022000 </TASK>

Crashes (2):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2022/01/24 07:57	upstream	dd81e1c7d5fb	214351e1	.config	console log	report	syz	C			ci-upstream-kasan-gce	WARNING in free_loaded_vmcs
2022/01/24 06:18	upstream	dd81e1c7d5fb	214351e1	.config	console log	report	syz	C			ci-upstream-kasan-gce	WARNING in free_loaded_vmcs

Crashes (2):

Assets (help?)