CVE-2026-77117: Loop with Unreachable Exit Condition

Converting crafted SHIFTJISX0213 input to UCS-4 or the internal wide character encoding, for example with iconv, in the GNU C Library version 2.3 to 2.44 may result in the converter making no progress, causing the calling application to hang. Some SHIFTJISX0213 sequences decode to two code points...