------------[ cut here ]------------ __ret WARNING: arch/x86/kvm/emulate.c:5569 at x86_emulate_insn+0x2ad0/0x4350 arch/x86/kvm/emulate.c:5569, CPU#0: syz-executor100/6034 Modules linked in: CPU: 0 UID: 0 PID: 6034 Comm: syz-executor100 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 RIP: 0010:x86_emulate_insn+0x2ad0/0x4350 arch/x86/kvm/emulate.c:5569 Code: 36 31 ff 44 89 f6 e8 7f 4d 7f 00 45 85 f6 0f 84 0d 02 00 00 e8 61 48 7f 00 41 bd 01 00 00 00 e9 ab f8 ff ff e8 51 48 7f 00 90 <0f> 0b 90 48 8b 44 24 40 42 80 3c 38 00 74 08 4c 89 e7 e8 59 19 f6 RSP: 0018:ffffc90005e4f900 EFLAGS: 00010293 RAX: ffffffff8149e21f RBX: 000304000010220a RCX: ffff888037511f40 RDX: 0000000000000000 RSI: 00000000000000ff RDI: 000000000000001f RBP: ffffc90005e4fa10 R08: ffff888037511f40 R09: 0000000000000002 R10: 0000000000000006 R11: 0000000000000000 R12: ffff88807f04c5c8 R13: ffff88807f04c5c0 R14: 00000000000000ff R15: dffffc0000000000 FS: 00007fadabb016c0(0000) GS:ffff8881233d1000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000002ad6c000 CR4: 00000000003526f0 Call Trace: x86_emulate_instruction+0xf56/0x1e90 arch/x86/kvm/x86.c:6524 kvm_arch_vcpu_ioctl_run+0x114d/0x18b0 arch/x86/kvm/x86.c:9047 kvm_vcpu_ioctl+0xa61/0xfd0 virt/kvm/kvm_main.c:4575 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fadabb2b2d9 Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 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 d0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fadabb011d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fadabbdfb48 RCX: 00007fadabb2b2d9 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 RBP: 00007fadabbdfb40 R08: 36203a6b63617473 R09: 36203a6b63617473 R10: 36203a6b63617473 R11: 0000000000000246 R12: 00007fadabbaf3b8 R13: 0000200000000400 R14: 0000200000000408 R15: 0000004000000006