diff --git a/buildSrc/src/main/groovy/ShellUtils.java b/buildSrc/src/main/groovy/ShellUtils.java
index ef4917c68e..2e7ade2303 100644
--- a/buildSrc/src/main/groovy/ShellUtils.java
+++ b/buildSrc/src/main/groovy/ShellUtils.java
@@ -1,3 +1,4 @@
+import io.github.pixee.security.BoundedLineReader;
 import java.io.BufferedReader;
 import java.io.DataOutputStream;
 import java.io.IOException;
@@ -156,15 +157,15 @@ public static CommandResult execCmd(final String[] commands,
                         new InputStreamReader(process.getErrorStream(), "UTF-8")
                 );
                 String line;
-                if ((line = successResult.readLine()) != null) {
+                if ((line = BoundedLineReader.readLine(successResult, 5_000_000)) != null) {
                     successMsg.append(line);
-                    while ((line = successResult.readLine()) != null) {
+                    while ((line = BoundedLineReader.readLine(successResult, 5_000_000)) != null) {
                         successMsg.append(LINE_SEP).append(line);
                     }
                 }
-                if ((line = errorResult.readLine()) != null) {
+                if ((line = BoundedLineReader.readLine(errorResult, 5_000_000)) != null) {
                     errorMsg.append(line);
-                    while ((line = errorResult.readLine()) != null) {
+                    while ((line = BoundedLineReader.readLine(errorResult, 5_000_000)) != null) {
                         errorMsg.append(LINE_SEP).append(line);
                     }
                 }
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ConvertUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ConvertUtils.java
index d6f9eaafaf..e986c62cf8 100644
--- a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ConvertUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ConvertUtils.java
@@ -9,6 +9,7 @@
 
 import com.blankj.utilcode.constant.MemoryConstants;
 import com.blankj.utilcode.constant.TimeConstants;
+import io.github.pixee.security.BoundedLineReader;
 
 import org.json.JSONArray;
 import org.json.JSONObject;
@@ -684,7 +685,7 @@ public static List<String> inputStream2Lines(final InputStream is,
             List<String> list = new ArrayList<>();
             reader = new BufferedReader(new InputStreamReader(is, getSafeCharset(charsetName)));
             String line;
-            while ((line = reader.readLine()) != null) {
+            while ((line = BoundedLineReader.readLine(reader, 5_000_000)) != null) {
                 list.add(line);
             }
             return list;
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/FileIOUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/FileIOUtils.java
index ca786e0b98..54503da665 100644
--- a/lib/utilcode/src/main/java/com/blankj/utilcode/util/FileIOUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/FileIOUtils.java
@@ -1,6 +1,7 @@
 package com.blankj.utilcode.util;
 
 import android.util.Log;
+import io.github.pixee.security.BoundedLineReader;
 
 import java.io.BufferedInputStream;
 import java.io.BufferedOutputStream;
@@ -679,7 +680,7 @@ public static List<String> readFile2List(final File file,
                         new InputStreamReader(new FileInputStream(file), charsetName)
                 );
             }
-            while ((line = reader.readLine()) != null) {
+            while ((line = BoundedLineReader.readLine(reader, 5_000_000)) != null) {
                 if (curLine > end) break;
                 if (st <= curLine && curLine <= end) list.add(line);
                 ++curLine;
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ProcessUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ProcessUtils.java
index e1d3006821..a4f2db5559 100644
--- a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ProcessUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ProcessUtils.java
@@ -15,6 +15,7 @@
 import android.support.annotation.RequiresPermission;
 import android.text.TextUtils;
 import android.util.Log;
+import io.github.pixee.security.BoundedLineReader;
 
 import java.io.BufferedReader;
 import java.io.File;
@@ -221,7 +222,7 @@ private static String getCurrentProcessNameByFile() {
         try {
             File file = new File("/proc/" + android.os.Process.myPid() + "/" + "cmdline");
             BufferedReader mBufferedReader = new BufferedReader(new FileReader(file));
-            String processName = mBufferedReader.readLine().trim();
+            String processName = BoundedLineReader.readLine(mBufferedReader, 5_000_000).trim();
             mBufferedReader.close();
             return processName;
         } catch (Exception e) {
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/RomUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/RomUtils.java
index 90f2255cf1..ab8e1389a2 100644
--- a/lib/utilcode/src/main/java/com/blankj/utilcode/util/RomUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/RomUtils.java
@@ -4,6 +4,7 @@
 import android.os.Build;
 import android.os.Environment;
 import android.text.TextUtils;
+import io.github.pixee.security.BoundedLineReader;
 
 import java.io.BufferedReader;
 import java.io.File;
@@ -398,7 +399,7 @@ private static String getSystemPropertyByShell(final String propName) {
         try {
             Process p = Runtime.getRuntime().exec("getprop " + propName);
             input = new BufferedReader(new InputStreamReader(p.getInputStream()), 1024);
-            String ret = input.readLine();
+            String ret = BoundedLineReader.readLine(input, 5_000_000);
             if (ret != null) {
                 return ret;
             }
@@ -453,4 +454,4 @@ public String toString() {
                     ", version=" + version + "}";
         }
     }
-}
\ No newline at end of file
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ShellUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ShellUtils.java
index 1f2d50888b..ebda542824 100644
--- a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ShellUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ShellUtils.java
@@ -1,6 +1,7 @@
 package com.blankj.utilcode.util;
 
 import android.support.annotation.NonNull;
+import io.github.pixee.security.BoundedLineReader;
 
 import java.io.BufferedReader;
 import java.io.DataOutputStream;
@@ -228,15 +229,15 @@ public static CommandResult execCmd(final String[] commands,
                         new InputStreamReader(process.getErrorStream(), "UTF-8")
                 );
                 String line;
-                if ((line = successResult.readLine()) != null) {
+                if ((line = BoundedLineReader.readLine(successResult, 5_000_000)) != null) {
                     successMsg.append(line);
-                    while ((line = successResult.readLine()) != null) {
+                    while ((line = BoundedLineReader.readLine(successResult, 5_000_000)) != null) {
                         successMsg.append(LINE_SEP).append(line);
                     }
                 }
-                if ((line = errorResult.readLine()) != null) {
+                if ((line = BoundedLineReader.readLine(errorResult, 5_000_000)) != null) {
                     errorMsg.append(line);
-                    while ((line = errorResult.readLine()) != null) {
+                    while ((line = BoundedLineReader.readLine(errorResult, 5_000_000)) != null) {
                         errorMsg.append(LINE_SEP).append(line);
                     }
                 }