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8155608: String intrinsic range checks are not strict enough

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Range checks in inflate, compress and getChars are not strict enough.

Reviewed-by: kvn, twisti, jrose
This commit is contained in:
Tobias Hartmann 2016-05-13 08:32:20 +02:00
parent 8adbc20c87
commit b8dd2e555f
2 changed files with 156 additions and 4 deletions
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48
hotspot/test/compiler/patches/java.base/java/lang/Helper.java
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@ -29,8 +29,48 @@ package java.lang;
* A helper class to get access to package-private members
*/
public class Helper {
@jdk.internal.vm.annotation.ForceInline
public static boolean StringCodingHasNegatives(byte[] ba, int off, int len) {
return StringCoding.hasNegatives(ba, off, len);
}
@jdk.internal.vm.annotation.ForceInline
public static boolean StringCodingHasNegatives(byte[] ba, int off, int len) {
return StringCoding.hasNegatives(ba, off, len);
}
@jdk.internal.vm.annotation.ForceInline
public static byte[] compressByte(byte[] src, int srcOff, int dstSize, int dstOff, int len) {
byte[] dst = new byte[dstSize];
StringUTF16.compress(src, srcOff, dst, dstOff, len);
return dst;
}
@jdk.internal.vm.annotation.ForceInline
public static byte[] compressChar(char[] src, int srcOff, int dstSize, int dstOff, int len) {
byte[] dst = new byte[dstSize];
StringUTF16.compress(src, srcOff, dst, dstOff, len);
return dst;
}
@jdk.internal.vm.annotation.ForceInline
public static byte[] inflateByte(byte[] src, int srcOff, int dstSize, int dstOff, int len) {
byte[] dst = new byte[dstSize];
StringLatin1.inflate(src, srcOff, dst, dstOff, len);
return dst;
}
@jdk.internal.vm.annotation.ForceInline
public static char[] inflateChar(byte[] src, int srcOff, int dstSize, int dstOff, int len) {
char[] dst = new char[dstSize];
StringLatin1.inflate(src, srcOff, dst, dstOff, len);
return dst;
}
@jdk.internal.vm.annotation.ForceInline
public static byte[] toBytes(char[] value, int off, int len) {
return StringUTF16.toBytes(value, off, len);
}
@jdk.internal.vm.annotation.ForceInline
public static char[] getChars(byte[] value, int srcBegin, int srcEnd, int dstSize, int dstBegin) {
char[] dst = new char[dstSize];
StringUTF16.getChars(value, srcBegin, srcEnd, dst, dstBegin);
return dst;
}
}