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Code Issues Releases Activity

Passing an invalid nmap handle to Remap should throw an error

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Added error for invalid nmap handles
This commit is contained in:
David Marcec 2018-10-11 20:32:21 +11:00
parent 6d82c4adf9
commit 5dd538cace
1 changed files with 14 additions and 3 deletions
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17
src/core/hle/service/nvdrv/devices/nvhost_as_gpu.cpp
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@ -15,6 +15,11 @@
#include "video_core/renderer_base.h"
namespace Service::Nvidia::Devices {
namespace NvErrCodes {
enum {
InvalidNmapHandle = -22,
};
}
nvhost_as_gpu::nvhost_as_gpu(std::shared_ptr<nvmap> nvmap_dev) : nvmap_dev(std::move(nvmap_dev)) {}
nvhost_as_gpu::~nvhost_as_gpu() = default;
@ -79,14 +84,17 @@ u32 nvhost_as_gpu::Remap(const std::vector<u8>& input, std::vector<u8>& output)
std::memcpy(entries.data(), input.data(), input.size());
auto& gpu = Core::System::GetInstance().GPU();
bool failed_remap{};
for (const auto& entry : entries) {
LOG_WARNING(Service_NVDRV, "remap entry, offset=0x{:X} handle=0x{:X} pages=0x{:X}",
entry.offset, entry.nvmap_handle, entry.pages);
Tegra::GPUVAddr offset = static_cast<Tegra::GPUVAddr>(entry.offset) << 0x10;
auto object = nvmap_dev->GetObject(entry.nvmap_handle);
ASSERT(object);
if (!object) {
LOG_CRITICAL(Service_NVDRV, "nvmap {} is an invalid handle!", entry.nvmap_handle);
failed_remap = true;
continue;
}
ASSERT(object->status == nvmap::Object::Status::Allocated);
@ -97,6 +105,9 @@ u32 nvhost_as_gpu::Remap(const std::vector<u8>& input, std::vector<u8>& output)
ASSERT(returned == offset);
}
std::memcpy(output.data(), entries.data(), output.size());
if (failed_remap) {
return static_cast<u32>(NvErrCodes::InvalidNmapHandle);
}
return 0;
}