diff options
| -rw-r--r-- | libs/gui/IGraphicBufferProducer.cpp | 9 | ||||
| -rw-r--r-- | libs/gui/Surface.cpp | 6 | ||||
| -rw-r--r-- | libs/ui/Fence.cpp | 2 |
3 files changed, 16 insertions, 1 deletions
diff --git a/libs/gui/IGraphicBufferProducer.cpp b/libs/gui/IGraphicBufferProducer.cpp index c3c62358f..51eedab3d 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 1abb6c375..2e78a6b6f 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 bf24ffb7e..1b2f34dfa 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; } |