CVE-2026-53306

In the Linux kernel, the following vulnerability has been resolved: tty: hvciucv: fix off-by-one in number of supported devices MAXHVCIUCVLINES == HVCALLOCTTYADAPTERS == 8. This is the number of entries in: static struct hvciucvprivate hvciucvtableMAXHVCIUCVLINES; Sometimes hvciucvtable is limite...

CVE-2026-53306

CVE-2026-53306 affects the Linux kernel tty/hvc_iucv path. The issue is an off-by-one in the number of supported devices: MAX_HVC_IUCV_LINES is 8, and hvc_iucv_devices can be 0–8. When devices == 8, a path that validates against the table size can access hvc_iucv_table[8], potentially triggering ...