CVE-2026-55894 Capstone SH disassembler `sh_disassemble` out-of-bounds read via crafted SH2A bytecode

Capstone is a disassembly framework. In 6.0.0-Alpha9 and earlier, Capstone's arch/SH/SHDisassembler.c shdisassemble function computes an idx value from a raw 16-bit instruction without ensuring it is within the active mode-specific decode function-pointer table. An application using CSARCHSH with...