H3cJP/yuzu
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

svc: Check for word alignment of addresses within svcArbitrateLock/svcArbitrateUnlock

Browse Source 
The kernel itself checks whether or not the provided addresses are word
aligned before continuing, so we should be doing the same.
This commit is contained in:
Lioncash 2018-10-18 13:01:26 -04:00
parent 541e9624eb
commit 4b5ae8dbaa
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/core/hle/kernel/svc.cpp
View File

@ -350,6 +350,10 @@ static ResultCode ArbitrateLock(Handle holding_thread_handle, VAddr mutex_addr,
return ERR_INVALID_ADDRESS_STATE;
}
if (!Common::IsWordAligned(mutex_addr)) {
return ERR_INVALID_ADDRESS;
}
auto& handle_table = Core::System::GetInstance().Kernel().HandleTable();
return Mutex::TryAcquire(handle_table, mutex_addr, holding_thread_handle,
requesting_thread_handle);
@ -363,6 +367,10 @@ static ResultCode ArbitrateUnlock(VAddr mutex_addr) {
return ERR_INVALID_ADDRESS_STATE;
}
if (!Common::IsWordAligned(mutex_addr)) {
return ERR_INVALID_ADDRESS;
}
return Mutex::Release(mutex_addr);
}