am 592cc33c: am e86f7e96: am 3c0272ba: am dc2d031a: am da9fd70d: am 2758eb2e: am fde92eb0: Update maxNumber to be smaller.

* commit '592cc33c408d5c91ad87e1a51d72269d4525a10b':
  Update maxNumber to be smaller.

1 files changed, 5 insertions, 1 deletions

diff --git a/libs/ui/GraphicBuffer.cpp b/libs/ui/GraphicBuffer.cpp
index 425df389bf..638ac62991 100644
--- a/libs/ui/GraphicBuffer.cpp
+++ b/libs/ui/GraphicBuffer.cpp
@@ -323,7 +323,11 @@ status_t GraphicBuffer::unflatten(
     const size_t numFds  = static_cast<size_t>(buf[8]);
     const size_t numInts = static_cast<size_t>(buf[9]);
 
-    const size_t maxNumber = UINT_MAX / sizeof(int);
+    // Limit the maxNumber to be relatively small. The number of fds or ints
+    // should not come close to this number, and the number itself was simply
+    // chosen to be high enough to not cause issues and low enough to prevent
+    // overflow problems.
+    const size_t maxNumber = 4096;
     if (numFds >= maxNumber || numInts >= (maxNumber - 10)) {
         width = height = stride = format = usage = 0;
         handle = NULL;