=====================================================
BUG: KMSAN: uninit-value in set_selection_kernel+0x2e3b/0x3670
 set_selection_kernel+0x2e3b/0x3670
 set_selection_user+0x12e/0x170
 tioclinux+0x266/0x970
 vt_ioctl+0x5f0/0x34a0
 vt_compat_ioctl+0x4d9/0xa50
 tty_compat_ioctl+0x669/0xa70
 __se_compat_sys_ioctl+0x964/0x10e0
 __ia32_compat_sys_ioctl+0xdd/0x120
 __do_fast_syscall_32+0x95/0xf0
 do_fast_syscall_32+0x33/0x70
 do_SYSENTER_32+0x1b/0x20
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c

Uninit was created at:
 __alloc_pages+0x8ae/0x1040
 __alloc_pages_bulk+0x2250/0x2a30
 alloc_pages_bulk_array_mempolicy+0xd90/0x10b0
 __vmalloc_node_range+0x121b/0x2e30
 vmalloc+0xe0/0xf0
 vc_do_resize+0x81b/0x32b0
 vc_resize+0xc7/0xe0
 vt_ioctl+0x2377/0x34a0
 vt_compat_ioctl+0x4d9/0xa50
 tty_compat_ioctl+0x669/0xa70
 __se_compat_sys_ioctl+0x964/0x10e0
 __ia32_compat_sys_ioctl+0xdd/0x120
 __do_fast_syscall_32+0x95/0xf0
 do_fast_syscall_32+0x33/0x70
 do_SYSENTER_32+0x1b/0x20
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c

CPU: 0 PID: 23078 Comm: syz-executor.3 Not tainted 5.18.0-syzkaller-16253-g2f3064574275 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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