am 4956c0fe: am 5b85b1d4: libutils: fix overflow in String8::allocFromUTF8

* commit '4956c0fe1e582a8497aff34a41aeb8bf4748eef0':
  libutils: fix overflow in String8::allocFromUTF8

1 files changed, 3 insertions, 0 deletions

diff --git a/libutils/String8.cpp b/libutils/String8.cpp
index 9092cbc99..574165386 100644
--- a/libutils/String8.cpp
+++ b/libutils/String8.cpp
@@ -78,6 +78,9 @@ void terminate_string8()
 static char* allocFromUTF8(const char* in, size_t len)
 {
     if (len > 0) {
+        if (len == SIZE_MAX) {
+            return NULL;
+        }
         SharedBuffer* buf = SharedBuffer::alloc(len+1);
         ALOG_ASSERT(buf, "Unable to allocate shared buffer");
         if (buf) {