adapter linux/arm64, check _func.nameoff array bounds

pkujhd · Feb 18, 2021 · ba664a3 · ba664a3
1 parent 3ed968e
commit ba664a3
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/register.1.16.go b/register.1.16.go
@@ -13,9 +13,11 @@ func registerFunc(md *moduledata, symPtr map[string]uintptr) {
 	for _, f := range md.ftab {
 		if int(f.funcoff) < len(md.pclntable) {
 			_func := (*_func)(unsafe.Pointer((&(md.pclntable[f.funcoff]))))
-			name := gostringnocopy(&(md.funcnametab[_func.nameoff]))
-			if !strings.HasPrefix(name, TypeDoubleDotPrefix) && _func.entry < md.etext {
-				symPtr[name] = _func.entry
+			if int(_func.nameoff) < len(md.funcnametab) {
+				name := gostringnocopy(&(md.funcnametab[_func.nameoff]))
+				if !strings.HasPrefix(name, TypeDoubleDotPrefix) && _func.entry < md.etext {
+					symPtr[name] = _func.entry
+				}
 			}
 		}
 	}