Kernel warning via unterminated ext4 volume label

Out-of-bounds read in Linux 6.10 allows local users to trigger a kernel warning through a crafted ext4 volume label. The ext4_ioctl_getlabel function passes the fixed-width s_volume_name field to strscpy_pad even though the field need not contain a NUL terminator, so fortified string handling reads beyond the 16-byte field and raises a warning. A local user must invoke the filesystem-label read on a mounted ext4 filesystem with a full-length label; the warning becomes a kernel panic only when panic_on_warn is enabled.