Merge cherrypicks of [2315914, 2315916, 2315837, 2315963, 2315918, 2315814, 2315983, 2315964, 2316107, 2316086, 2316109, 2315977, 2316145, 2316016, 2316110, 2316221, 2316088, 2316210, 2316242, 2316222, 2316075, 2316076, 2316077, 2316089, 2316243, 2316183, 2316078, 2316112, 2316211, 2316149, 2316113, 2316212, 2316151, 2316215, 2316131, 2316115, 2316245, 2316216, 2316116, 2316217, 2316279, 2316186, 2316187, 2316246, 2316247, 2316249, 2316218, 2316092, 2316094, 2316323, 2316360, 2316379] into nyc-mr1-security-a-releaseandroid-7.1.1_r44

Change-Id: I86569683aa940554a1cbd90c6041434bfbfb4755

3 files changed, 16 insertions, 1 deletions

diff --git a/libs/gui/IGraphicBufferProducer.cpp b/libs/gui/IGraphicBufferProducer.cpp
index f4ba3bf15f..1a08130c44 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>
 
@@ -203,8 +204,16 @@ 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 08382908ba..5a2ca8d7ac 100644
--- a/libs/gui/Surface.cpp
+++ b/libs/gui/Surface.cpp
@@ -306,6 +306,12 @@ 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;
     }