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authorZach Hilman <zachhilman@gmail.com>2018-11-18 03:40:17 +0100
committerZach Hilman <zachhilman@gmail.com>2018-11-18 03:40:26 +0100
commit51af996854ce01da17750b0a1f8d2f3a95449cfc (patch)
tree097752e6d2a94a37fe482f5606ca67be8a33890b /src/core/hle/service/ldr/ldr.cpp
parentldr_ro: Implement UnloadNro (command 1) (diff)
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Diffstat (limited to 'src/core/hle/service/ldr/ldr.cpp')
-rw-r--r--src/core/hle/service/ldr/ldr.cpp27
1 files changed, 20 insertions, 7 deletions
diff --git a/src/core/hle/service/ldr/ldr.cpp b/src/core/hle/service/ldr/ldr.cpp
index 5f020cbe0..b43f1f054 100644
--- a/src/core/hle/service/ldr/ldr.cpp
+++ b/src/core/hle/service/ldr/ldr.cpp
@@ -18,6 +18,7 @@ namespace Service::LDR {
namespace ErrCodes {
enum {
+ InvalidMemoryState = 51,
InvalidNRO = 52,
InvalidNRR = 53,
MissingNRRHash = 54,
@@ -32,6 +33,7 @@ enum {
};
}
+constexpr ResultCode ERROR_INVALID_MEMORY_STATE(ErrorModule::Loader, ErrCodes::InvalidMemoryState);
constexpr ResultCode ERROR_INVALID_NRO(ErrorModule::Loader, ErrCodes::InvalidNRO);
constexpr ResultCode ERROR_INVALID_NRR(ErrorModule::Loader, ErrCodes::InvalidNRR);
constexpr ResultCode ERROR_MISSING_NRR_HASH(ErrorModule::Loader, ErrCodes::MissingNRRHash);
@@ -120,7 +122,7 @@ public:
return;
}
- if (nro.size() >= MAXIMUM_LOADED_RO) {
+ if (nrr.size() >= MAXIMUM_LOADED_RO) {
LOG_ERROR(Service_LDR, "Loading new NRR would exceed the maximum number of loaded NRRs "
"(0x40)! Failing...");
IPC::ResponseBuilder rb{ctx, 2};
@@ -178,10 +180,13 @@ public:
}
std::vector<SHA256Hash> hashes;
+
+ // Copy all hashes in the NRR (specified by hash count/hash offset) into vector.
for (std::size_t i = header.hash_offset;
- i < (header.hash_offset + (header.hash_count << 5)); i += 8) {
- hashes.emplace_back();
- std::memcpy(hashes.back().data(), nrr_data.data() + i, sizeof(SHA256Hash));
+ i < (header.hash_offset + (header.hash_count * sizeof(SHA256Hash))); i += 8) {
+ SHA256Hash hash;
+ std::memcpy(hash.data(), nrr_data.data() + i, sizeof(SHA256Hash));
+ hashes.emplace_back(hash);
}
nrr.insert_or_assign(nrr_addr, std::move(hashes));
@@ -258,8 +263,8 @@ public:
// NRO Size or BSS Size is zero or causes overflow
const auto nro_size_valid =
nro_size != 0 && nro_addr + nro_size > nro_addr && Common::Is4KBAligned(nro_size);
- const auto bss_size_valid = std::numeric_limits<u64>::max() - nro_size >= bss_size &&
- (bss_size == 0 || bss_addr + bss_size > bss_addr);
+ const auto bss_size_valid =
+ nro_size + bss_size >= nro_size && (bss_size == 0 || bss_addr + bss_size > bss_addr);
if (!nro_size_valid || !bss_size_valid) {
LOG_ERROR(Service_LDR,
@@ -313,7 +318,15 @@ public:
auto& vm_manager = process->VMManager();
auto map_address = vm_manager.FindFreeRegion(nro_size + bss_size);
- ASSERT(map_address.Succeeded());
+ if (!map_address.Succeeded() ||
+ *map_address + nro_size + bss_size > vm_manager.GetAddressSpaceEndAddress()) {
+
+ LOG_ERROR(Service_LDR,
+ "General error while allocation memory or no available memory to allocate!");
+ IPC::ResponseBuilder rb{ctx, 2};
+ rb.Push(ERROR_INVALID_MEMORY_STATE);
+ return;
+ }
ASSERT(process->MirrorMemory(*map_address, nro_addr, nro_size,
Kernel::MemoryState::ModuleCodeStatic) == RESULT_SUCCESS);