Merge cherrypicks of [2379347, 2379239, 2379364, 2379160, 2379220, 2379290, 2379348, 2379328, 2379329, 2379349, 2379350, 2379365, 2379401, 2379351, 2379330, 2379313, 2379382, 2379275, 2379331, 2379352, 2379292, 2379314, 2379315, 2379402, 2379421, 2379369, 2379255, 2379317, 2379404, 2379279, 2379334, 2379372, 2379335] into mnc-mr2-releaseandroid-6.0.1_r81android-6.0.1_r80marshmallow-mr2-release

Change-Id: I5c3023638d63714982568078eb3f7d213dd890d6

3 files changed, 16 insertions, 1 deletions

diff --git a/libs/gui/IGraphicBufferProducer.cpp b/libs/gui/IGraphicBufferProducer.cpp
index c3c62358fa..51eedab3de 100644
--- a/libs/gui/IGraphicBufferProducer.cpp
+++ b/libs/gui/IGraphicBufferProducer.cpp
@@ -26,6 +26,7 @@
 #include <binder/Parcel.h>
 #include <binder/IInterface.h>
 
+#include <gui/BufferQueueDefs.h>
 #include <gui/IGraphicBufferProducer.h>
 #include <gui/IProducerListener.h>
 
@@ -170,8 +171,16 @@ public:
         if (result != NO_ERROR) {
             return result;
         }
+
         *slot = reply.readInt32();
         result = reply.readInt32();
+        if (result == NO_ERROR &&
+                (*slot < 0 || *slot >= BufferQueueDefs::NUM_BUFFER_SLOTS)) {
+            ALOGE("attachBuffer returned invalid slot %d", *slot);
+            android_errorWriteLog(0x534e4554, "37478824");
+            return UNKNOWN_ERROR;
+        }
+
         return result;
     }
 
diff --git a/libs/gui/Surface.cpp b/libs/gui/Surface.cpp
index 4b76f9834c..22aa4ecc36 100644
--- a/libs/gui/Surface.cpp
+++ b/libs/gui/Surface.cpp
@@ -237,6 +237,12 @@ int Surface::dequeueBuffer(android_native_buffer_t** buffer, int* fenceFd) {
         return result;
     }
 
+    if (buf < 0 || buf >= NUM_BUFFER_SLOTS) {
+        ALOGE("dequeueBuffer: IGraphicBufferProducer returned invalid slot number %d", buf);
+        android_errorWriteLog(0x534e4554, "36991414"); // SafetyNet logging
+        return FAILED_TRANSACTION;
+    }
+
     Mutex::Autolock lock(mMutex);
 
     sp<GraphicBuffer>& gbuf(mSlots[buf].buffer);
diff --git a/libs/ui/Fence.cpp b/libs/ui/Fence.cpp
index bf24ffb7e0..1b2f34dfa8 100644
--- a/libs/ui/Fence.cpp
+++ b/libs/ui/Fence.cpp
@@ -157,7 +157,7 @@ status_t Fence::unflatten(void const*& buffer, size_t& size, int const*& fds, si
         return INVALID_OPERATION;
     }
 
-    if (size < 1) {
+    if (size < getFlattenedSize()) {
         return NO_MEMORY;
     }