------------[ cut here ]------------ WARNING: CPU: 3 PID: 12707 at arch/x86/kvm/x86.c:11563 kvm_arch_vcpu_ioctl_run+0x14df/0x1980 arch/x86/kvm/x86.c:11563 Modules linked in: CPU: 3 UID: 0 PID: 12707 Comm: syz.4.1819 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:kvm_arch_vcpu_ioctl_run+0x14df/0x1980 arch/x86/kvm/x86.c:11563 Code: 0a 00 00 00 00 00 00 e8 d2 69 be 1e 31 ff 89 c5 89 c6 e8 e4 f6 79 00 85 ed 0f 8f d9 ef ff ff e9 25 f0 ff ff e8 92 fb 79 00 90 <0f> 0b 90 e9 81 ef ff ff e8 84 fb 79 00 90 0f 0b 90 e9 b8 ef ff ff RSP: 0018:ffffc900016cfc30 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88803c445280 RCX: ffffffff814192bf RDX: ffff888065ed8000 RSI: ffffffff8141a33e RDI: 0000000000000007 RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88805418e000 R13: ffff88803c445358 R14: 0000000000000000 R15: ffff88803c4455b4 FS: 00007feb63ffa6c0(0000) GS:ffff8880d69b4000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d41ff131e8 CR3: 00000000337c3000 CR4: 0000000000352ef0 DR0: 00000000003ff800 DR1: 0000000000000004 DR2: 00000000000007ff DR3: 0000000000000005 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: kvm_vcpu_ioctl+0x5eb/0x1690 virt/kvm/kvm_main.c:4466 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:598 [inline] __se_sys_ioctl fs/ioctl.c:584 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:584 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4e0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7feb6318eba9 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:00007feb63ffa038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007feb633d6090 RCX: 00007feb6318eba9 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 RBP: 00007feb63211e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007feb633d6128 R14: 00007feb633d6090 R15: 00007ffdacd42578