------------[ cut here ]------------ WARNING: CPU: 0 PID: 8028 at arch/x86/kvm/x86.c:10834 kvm_arch_vcpu_ioctl_run+0x26bb/0x2b90 arch/x86/kvm/x86.c:10834 Modules linked in: CPU: 1 PID: 8028 Comm: syz-executor.2 Not tainted 6.2.0-rc3-syzkaller-00060-gc757fc92a3f7 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:kvm_arch_vcpu_ioctl_run+0x26bb/0x2b90 arch/x86/kvm/x86.c:10834 Code: fa ff ff e8 27 c1 6e 00 44 89 e6 48 c7 c7 40 87 42 8a c6 05 70 1b 4b 0d 01 e8 b1 10 ad 08 0f 0b e9 ce fa ff ff e8 05 c1 6e 00 <0f> 0b e9 ca f9 ff ff e8 f9 c0 6e 00 0f 0b e9 3a fa ff ff 4c 89 ff RSP: 0018:ffffc90025cd7bc0 EFLAGS: 00010212 RAX: 0000000000000793 RBX: 0000000000000001 RCX: ffffc90003dd1000 RDX: 0000000000040000 RSI: ffffffff8112915b RDI: 0000000000000001 RBP: ffff888071712900 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffc90025ce3800 R13: ffffc90025ce3478 R14: 0000000000000000 R15: ffff888071712bec FS: 0000000000000000(0000) GS:ffff88802c700000(0063) knlGS:00000000f7fb4b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000057e6608c CR3: 00000000727ba000 CR4: 0000000000152ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kvm_vcpu_ioctl+0x574/0xfc0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4100 kvm_vcpu_compat_ioctl+0x1f4/0x3c0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4300 __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: 0023:0xf7fb9549 Code: 03 74 c0 01 10 05 03 74 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 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:00000000f7fb45cc 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: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 03 74 c0 01 add 0x1(%rax,%rax,8),%esi 4: 10 05 03 74 b8 01 adc %al,0x1b87403(%rip) # 0x1b8740d a: 10 06 adc %al,(%rsi) c: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 10: 10 07 adc %al,(%rdi) 12: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi 16: 10 08 adc %cl,(%rax) 18: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1c: 00 00 add %al,(%rax) 1e: 00 00 add %al,(%rax) 20: 00 51 52 add %dl,0x52(%rcx) 23: 55 push %rbp 24: 89 e5 mov %esp,%ebp 26: 0f 34 sysenter 28: cd 80 int $0x80 * 2a: 5d pop %rbp <-- trapping instruction 2b: 5a pop %rdx 2c: 59 pop %rcx 2d: c3 retq 2e: 90 nop 2f: 90 nop 30: 90 nop 31: 90 nop 32: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 39: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi