CVE-2026-27144 Go编译器内存损坏漏洞

package main import ( "fmt" ) // Conceptual Proof of Concept for CVE-2026-27144 // This code demonstrates the pattern involving interface conversion // that may trigger the compiler's incorrect non-overlapping move assumption. type Data struct { Buffer [100]byte } func main() { // 1. Initialize data var src Data for i := range src.Buffer { src.Buffer[i] = byte(i % 256) } // 2. Perform a no-op interface conversion // This conversion is meant to be transparent but triggers the compiler bug var i interface{} = &src // 3. Cast back to the concrete type ptr := i.(*Data) // 4. Perform a memory move that might be treated as non-overlapping // If the compiler fails to recognize that ptr and src overlap, // this operation could lead to memory corruption. copy(ptr.Buffer[10:], src.Buffer[:]) fmt.Println("PoC executed. Runtime behavior depends on compiler optimization.") }