kvm: pic: non byte write
------------[ cut here ]------------
WARNING: CPU: 0 PID: 13697 at arch/x86/kvm/x86.c:11200 vcpu_block arch/x86/kvm/x86.c:11200 [inline]
WARNING: CPU: 0 PID: 13697 at arch/x86/kvm/x86.c:11200 vcpu_run+0x1a7a/0x4f50 arch/x86/kvm/x86.c:11244
Modules linked in:
CPU: 0 UID: 0 PID: 13697 Comm: syz.6.1853 Not tainted 6.13.0-rc3-syzkaller-00062-gc061cf420ded #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:vcpu_block arch/x86/kvm/x86.c:11200 [inline]
RIP: 0010:vcpu_run+0x1a7a/0x4f50 arch/x86/kvm/x86.c:11244
Code: 00 00 00 0f 85 63 2e 00 00 48 8d 65 d0 89 d8 5b 41 5a 41 5c 41 5d 41 5e 41 5f 5d 49 8d 62 f8 c3 cc cc cc cc e8 07 26 7a 00 90 <0f> 0b 90 31 db eb 9d e8 fa 25 7a 00 e9 a3 f9 ff ff e8 f0 25 7a 00
RSP: 0018:ffffc9000443fab0 EFLAGS: 00010287
RAX: 0000000000000817 RBX: 00000000fffffff0 RCX: ffffc9000cb51000
RDX: 0000000000080000 RSI: ffffffff811fef49 RDI: 0000000000000005
RBP: ffffc9000443fc20 R08: 0000000000000005 R09: 00000000fffffff0
R10: 00000000fffffff0 R11: 0000000000000001 R12: 0000000000000001
R13: ffff888025f6a880 R14: ffff888025f6a880 R15: dffffc0000000000
FS:  00007fafacff76c0(0000) GS:ffff88806a600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000004322e000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000008 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kvm_arch_vcpu_ioctl_run+0x44a/0x1740 arch/x86/kvm/x86.c:11560
 kvm_vcpu_ioctl+0x6ce/0x1520 virt/kvm/kvm_main.c:4340
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl fs/ioctl.c:892 [inline]
 __x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fafac185d29
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:00007fafacff7038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fafac375fa0 RCX: 00007fafac185d29
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005
RBP: 00007fafac201a20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fafac375fa0 R15: 00007ffe2c937118
 </TASK>