Sanity checks in JNI code for closure creation
b/20728113
In case the requested size for memory allocation overflows, or memory
allocation fails.
Change-Id: I8dac132dd4d0210938660ffbb82cbe44000d2a90
diff --git a/rs/java/android/renderscript/RenderScript.java b/rs/java/android/renderscript/RenderScript.java
index 6b1939c..24bc2c1 100644
--- a/rs/java/android/renderscript/RenderScript.java
+++ b/rs/java/android/renderscript/RenderScript.java
@@ -302,8 +302,12 @@
long[] fieldIDs, long[] values, int[] sizes, long[] depClosures,
long[] depFieldIDs) {
validate();
- return rsnClosureCreate(mContext, kernelID, returnValue, fieldIDs, values,
+ long c = rsnClosureCreate(mContext, kernelID, returnValue, fieldIDs, values,
sizes, depClosures, depFieldIDs);
+ if (c == 0) {
+ throw new RSRuntimeException("Failed creating closure.");
+ }
+ return c;
}
native long rsnInvokeClosureCreate(long con, long invokeID, byte[] params,
@@ -311,8 +315,12 @@
synchronized long nInvokeClosureCreate(long invokeID, byte[] params,
long[] fieldIDs, long[] values, int[] sizes) {
validate();
- return rsnInvokeClosureCreate(mContext, invokeID, params, fieldIDs,
+ long c = rsnInvokeClosureCreate(mContext, invokeID, params, fieldIDs,
values, sizes);
+ if (c == 0) {
+ throw new RSRuntimeException("Failed creating closure.");
+ }
+ return c;
}
native void rsnClosureSetArg(long con, long closureID, int index,
@@ -337,7 +345,11 @@
synchronized long nScriptGroup2Create(String name, String cachePath,
long[] closures) {
validate();
- return rsnScriptGroup2Create(mContext, name, cachePath, closures);
+ long g = rsnScriptGroup2Create(mContext, name, cachePath, closures);
+ if (g == 0) {
+ throw new RSRuntimeException("Failed creating script group.");
+ }
+ return g;
}
native void rsnScriptGroup2Execute(long con, long groupID);
diff --git a/rs/jni/android_renderscript_RenderScript.cpp b/rs/jni/android_renderscript_RenderScript.cpp
index 6f6729b..d339a0d 100644
--- a/rs/jni/android_renderscript_RenderScript.cpp
+++ b/rs/jni/android_renderscript_RenderScript.cpp
@@ -44,6 +44,9 @@
//#define LOG_API ALOGE
static constexpr bool kLogApi = false;
+static constexpr size_t kMaxNumberArgsAndBindings = 1000;
+static constexpr size_t kMaxNumberClosuresInScriptGroup = 1000000;
+static constexpr size_t kMaxNumberKernelArguments = 256;
using namespace android;
@@ -333,79 +336,167 @@
jlong returnValue, jlongArray fieldIDArray,
jlongArray valueArray, jintArray sizeArray,
jlongArray depClosureArray, jlongArray depFieldIDArray) {
+ jlong ret = 0;
+
jlong* jFieldIDs = _env->GetLongArrayElements(fieldIDArray, nullptr);
jsize fieldIDs_length = _env->GetArrayLength(fieldIDArray);
- RsScriptFieldID* fieldIDs =
- (RsScriptFieldID*)alloca(sizeof(RsScriptFieldID) * fieldIDs_length);
- for (int i = 0; i< fieldIDs_length; i++) {
- fieldIDs[i] = (RsScriptFieldID)jFieldIDs[i];
- }
-
jlong* jValues = _env->GetLongArrayElements(valueArray, nullptr);
jsize values_length = _env->GetArrayLength(valueArray);
- uintptr_t* values = (uintptr_t*)alloca(sizeof(uintptr_t) * values_length);
- for (int i = 0; i < values_length; i++) {
- values[i] = (uintptr_t)jValues[i];
- }
-
- jint* sizes = _env->GetIntArrayElements(sizeArray, nullptr);
+ jint* jSizes = _env->GetIntArrayElements(sizeArray, nullptr);
jsize sizes_length = _env->GetArrayLength(sizeArray);
-
jlong* jDepClosures =
_env->GetLongArrayElements(depClosureArray, nullptr);
jsize depClosures_length = _env->GetArrayLength(depClosureArray);
- RsClosure* depClosures =
- (RsClosure*)alloca(sizeof(RsClosure) * depClosures_length);
- for (int i = 0; i < depClosures_length; i++) {
- depClosures[i] = (RsClosure)jDepClosures[i];
- }
-
jlong* jDepFieldIDs =
_env->GetLongArrayElements(depFieldIDArray, nullptr);
jsize depFieldIDs_length = _env->GetArrayLength(depFieldIDArray);
- RsScriptFieldID* depFieldIDs =
- (RsScriptFieldID*)alloca(sizeof(RsScriptFieldID) * depFieldIDs_length);
- for (int i = 0; i < depClosures_length; i++) {
+
+ size_t numValues, numDependencies;
+ RsScriptFieldID* fieldIDs;
+ uintptr_t* values;
+ RsClosure* depClosures;
+ RsScriptFieldID* depFieldIDs;
+
+ if (fieldIDs_length != values_length || values_length != sizes_length) {
+ ALOGE("Unmatched field IDs, values, and sizes in closure creation.");
+ goto exit;
+ }
+
+ numValues = (size_t)fieldIDs_length;
+
+ if (depClosures_length != depFieldIDs_length) {
+ ALOGE("Unmatched closures and field IDs for dependencies in closure creation.");
+ goto exit;
+ }
+
+ numDependencies = (size_t)depClosures_length;
+
+ if (numDependencies > numValues) {
+ ALOGE("Unexpected number of dependencies in closure creation");
+ goto exit;
+ }
+
+ if (numValues > kMaxNumberArgsAndBindings) {
+ ALOGE("Too many arguments or globals in closure creation");
+ goto exit;
+ }
+
+ fieldIDs = (RsScriptFieldID*)alloca(sizeof(RsScriptFieldID) * numValues);
+ if (fieldIDs == nullptr) {
+ goto exit;
+ }
+
+ for (size_t i = 0; i < numValues; i++) {
+ fieldIDs[i] = (RsScriptFieldID)jFieldIDs[i];
+ }
+
+ values = (uintptr_t*)alloca(sizeof(uintptr_t) * numValues);
+ if (values == nullptr) {
+ goto exit;
+ }
+
+ for (size_t i = 0; i < numValues; i++) {
+ values[i] = (uintptr_t)jValues[i];
+ }
+
+ depClosures = (RsClosure*)alloca(sizeof(RsClosure) * numDependencies);
+ if (depClosures == nullptr) {
+ goto exit;
+ }
+
+ for (size_t i = 0; i < numDependencies; i++) {
+ depClosures[i] = (RsClosure)jDepClosures[i];
+ }
+
+ depFieldIDs = (RsScriptFieldID*)alloca(sizeof(RsScriptFieldID) * numDependencies);
+ if (depFieldIDs == nullptr) {
+ goto exit;
+ }
+
+ for (size_t i = 0; i < numDependencies; i++) {
depFieldIDs[i] = (RsClosure)jDepFieldIDs[i];
}
- return (jlong)(uintptr_t)rsClosureCreate(
+ ret = (jlong)(uintptr_t)rsClosureCreate(
(RsContext)con, (RsScriptKernelID)kernelID, (RsAllocation)returnValue,
- fieldIDs, (size_t)fieldIDs_length, values, (size_t)values_length,
- (int*)sizes, (size_t)sizes_length,
- depClosures, (size_t)depClosures_length,
- depFieldIDs, (size_t)depFieldIDs_length);
+ fieldIDs, numValues, values, numValues,
+ (int*)jSizes, numValues,
+ depClosures, numDependencies,
+ depFieldIDs, numDependencies);
+
+exit:
+
+ _env->ReleaseLongArrayElements(depFieldIDArray, jDepFieldIDs, JNI_ABORT);
+ _env->ReleaseLongArrayElements(depClosureArray, jDepClosures, JNI_ABORT);
+ _env->ReleaseIntArrayElements (sizeArray, jSizes, JNI_ABORT);
+ _env->ReleaseLongArrayElements(valueArray, jValues, JNI_ABORT);
+ _env->ReleaseLongArrayElements(fieldIDArray, jFieldIDs, JNI_ABORT);
+
+ return ret;
}
static jlong
nInvokeClosureCreate(JNIEnv *_env, jobject _this, jlong con, jlong invokeID,
jbyteArray paramArray, jlongArray fieldIDArray, jlongArray valueArray,
jintArray sizeArray) {
+ jlong ret = 0;
+
jbyte* jParams = _env->GetByteArrayElements(paramArray, nullptr);
jsize jParamLength = _env->GetArrayLength(paramArray);
-
jlong* jFieldIDs = _env->GetLongArrayElements(fieldIDArray, nullptr);
jsize fieldIDs_length = _env->GetArrayLength(fieldIDArray);
- RsScriptFieldID* fieldIDs =
- (RsScriptFieldID*)alloca(sizeof(RsScriptFieldID) * fieldIDs_length);
- for (int i = 0; i< fieldIDs_length; i++) {
+ jlong* jValues = _env->GetLongArrayElements(valueArray, nullptr);
+ jsize values_length = _env->GetArrayLength(valueArray);
+ jint* jSizes = _env->GetIntArrayElements(sizeArray, nullptr);
+ jsize sizes_length = _env->GetArrayLength(sizeArray);
+
+ size_t numValues;
+ RsScriptFieldID* fieldIDs;
+ uintptr_t* values;
+
+ if (fieldIDs_length != values_length || values_length != sizes_length) {
+ ALOGE("Unmatched field IDs, values, and sizes in closure creation.");
+ goto exit;
+ }
+
+ numValues = (size_t) fieldIDs_length;
+
+ if (numValues > kMaxNumberArgsAndBindings) {
+ ALOGE("Too many arguments or globals in closure creation");
+ goto exit;
+ }
+
+ fieldIDs = (RsScriptFieldID*)alloca(sizeof(RsScriptFieldID) * numValues);
+ if (fieldIDs == nullptr) {
+ goto exit;
+ }
+
+ for (size_t i = 0; i< numValues; i++) {
fieldIDs[i] = (RsScriptFieldID)jFieldIDs[i];
}
- jlong* jValues = _env->GetLongArrayElements(valueArray, nullptr);
- jsize values_length = _env->GetArrayLength(valueArray);
- uintptr_t* values = (uintptr_t*)alloca(sizeof(uintptr_t) * values_length);
- for (int i = 0; i < values_length; i++) {
+ values = (uintptr_t*)alloca(sizeof(uintptr_t) * numValues);
+ if (values == nullptr) {
+ goto exit;
+ }
+
+ for (size_t i = 0; i < numValues; i++) {
values[i] = (uintptr_t)jValues[i];
}
- jint* sizes = _env->GetIntArrayElements(sizeArray, nullptr);
- jsize sizes_length = _env->GetArrayLength(sizeArray);
-
- return (jlong)(uintptr_t)rsInvokeClosureCreate(
+ ret = (jlong)(uintptr_t)rsInvokeClosureCreate(
(RsContext)con, (RsScriptInvokeID)invokeID, jParams, jParamLength,
- fieldIDs, (size_t)fieldIDs_length, values, (size_t)values_length,
- (int*)sizes, (size_t)sizes_length);
+ fieldIDs, numValues, values, numValues,
+ (int*)jSizes, numValues);
+
+exit:
+
+ _env->ReleaseIntArrayElements (sizeArray, jSizes, JNI_ABORT);
+ _env->ReleaseLongArrayElements(valueArray, jValues, JNI_ABORT);
+ _env->ReleaseLongArrayElements(fieldIDArray, jFieldIDs, JNI_ABORT);
+ _env->ReleaseByteArrayElements(paramArray, jParams, JNI_ABORT);
+
+ return ret;
}
static void
@@ -425,20 +516,40 @@
static long
nScriptGroup2Create(JNIEnv *_env, jobject _this, jlong con, jstring name,
jstring cacheDir, jlongArray closureArray) {
+ jlong ret = 0;
+
AutoJavaStringToUTF8 nameUTF(_env, name);
AutoJavaStringToUTF8 cacheDirUTF(_env, cacheDir);
jlong* jClosures = _env->GetLongArrayElements(closureArray, nullptr);
jsize numClosures = _env->GetArrayLength(closureArray);
- RsClosure* closures = (RsClosure*)alloca(sizeof(RsClosure) * numClosures);
+
+ RsClosure* closures;
+
+ if (numClosures > (jsize) kMaxNumberClosuresInScriptGroup) {
+ ALOGE("Too many closures in script group");
+ goto exit;
+ }
+
+ closures = (RsClosure*)alloca(sizeof(RsClosure) * numClosures);
+ if (closures == nullptr) {
+ goto exit;
+ }
+
for (int i = 0; i < numClosures; i++) {
closures[i] = (RsClosure)jClosures[i];
}
- return (jlong)(uintptr_t)rsScriptGroup2Create(
+ ret = (jlong)(uintptr_t)rsScriptGroup2Create(
(RsContext)con, nameUTF.c_str(), nameUTF.length(),
cacheDirUTF.c_str(), cacheDirUTF.length(),
closures, numClosures);
+
+exit:
+
+ _env->ReleaseLongArrayElements(closureArray, jClosures, JNI_ABORT);
+
+ return ret;
}
static void
@@ -1766,8 +1877,14 @@
if (ains != nullptr) {
in_len = _env->GetArrayLength(ains);
- in_ptr = _env->GetLongArrayElements(ains, nullptr);
+ if (in_len > (jint)kMaxNumberKernelArguments) {
+ ALOGE("Too many arguments in kernel launch.");
+ // TODO (b/20758983): Report back to Java and throw an exception
+ return;
+ }
+ // TODO (b/20760800): Check in_ptr is not null
+ in_ptr = _env->GetLongArrayElements(ains, nullptr);
if (sizeof(RsAllocation) == sizeof(jlong)) {
in_allocs = (RsAllocation*)in_ptr;
@@ -1775,6 +1892,11 @@
// Convert from 64-bit jlong types to the native pointer type.
in_allocs = (RsAllocation*)alloca(in_len * sizeof(RsAllocation));
+ if (in_allocs == nullptr) {
+ ALOGE("Failed launching kernel for lack of memory.");
+ _env->ReleaseLongArrayElements(ains, in_ptr, JNI_ABORT);
+ return;
+ }
for (int index = in_len; --index >= 0;) {
in_allocs[index] = (RsAllocation)in_ptr[index];