------------[ cut here ]------------ WARNING: CPU: 2 PID: 6887 at arch/x86/kvm/x86.c:10856 kvm_arch_vcpu_ioctl_run+0x2613/0x2b10 arch/x86/kvm/x86.c:10856 Modules linked in: CPU: 2 PID: 6887 Comm: syz-executor.3 Not tainted 6.2.0-syzkaller-03026-g69308402ca6f #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:kvm_arch_vcpu_ioctl_run+0x2613/0x2b10 arch/x86/kvm/x86.c:10856 Code: fb ff ff e8 ff c7 71 00 44 89 e6 48 c7 c7 c0 8c 42 8a c6 05 48 70 4e 0d 01 e8 59 4e 39 00 0f 0b e9 41 fb ff ff e8 dd c7 71 00 <0f> 0b e9 3d fa ff ff e8 d1 c7 71 00 0f b6 1d 25 70 4e 0d 31 ff 89 RSP: 0018:ffffc9000e93fbc8 EFLAGS: 00010216 RAX: 0000000000000797 RBX: 0000000000000001 RCX: ffffc90003439000 RDX: 0000000000040000 RSI: ffffffff8112d5b3 RDI: 0000000000000001 RBP: ffff888025c2d200 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffc9002123f028 R13: ffffc9002123eca0 R14: 0000000000000000 R15: ffff888025c2d4ec FS: 0000000000000000(0000) GS:ffff88802cb00000(0063) knlGS:00000000f7fd9b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000002f826000 CR3: 000000001b304000 CR4: 0000000000152ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kvm_vcpu_ioctl+0x574/0xfe0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4107 kvm_vcpu_compat_ioctl+0x1f4/0x3c0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4307 __do_compat_sys_ioctl+0x255/0x2b0 fs/ioctl.c:968 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7fde579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f7fd95cc EFLAGS: 00000296 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 000000000000ae80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 retq 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi