CVE-2026-53306

CVE-2026-53306 : In the Linux kernel, a bounds-related off-by-one was fixed in the hvc_iucv path used by tty. The issue stems from MAX_HVC_IUCV_LINES == 8 and hvc_iucv_devices allowed values 0..8; when devices == 8, one code path could access hvc_iucv_table[8] due to mismatched checks (a) vs (b)....