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Fix memory corruption in BCAT and FS Read methods when buffer is larger than needed (#3739)

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* Fix memory corruption in FS Read methods when buffer is larger than needed

* PR feedback

* nit: Don't move this around
This commit is contained in:
gdkchan 2022-10-04 20:12:54 -03:00 • committed by GitHub
parent 2068445939
commit 60e16c15b6
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GPG key ID: 4AEE18F83AFDEB23
10 changed files with 69 additions and 79 deletions
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13
Ryujinx.HLE/HOS/Services/Ssl/SslService/ISslConnection.cs
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@ -142,14 +142,13 @@ namespace Ryujinx.HLE.HOS.Services.Ssl.SslService
// GetHostName(buffer<bytes, 6>) -> u32
public ResultCode GetHostName(ServiceCtx context)
{
ulong hostNameDataPosition = context.Request.ReceiveBuff[0].Position;
ulong hostNameDataSize = context.Request.ReceiveBuff[0].Size;
ulong bufferAddress = context.Request.ReceiveBuff[0].Position;
ulong bufferLen = context.Request.ReceiveBuff[0].Size;
byte[] hostNameData = new byte[hostNameDataSize];
Encoding.ASCII.GetBytes(_hostName, hostNameData);
context.Memory.Write(hostNameDataPosition, hostNameData);
using (var region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true))
{
Encoding.ASCII.GetBytes(_hostName, region.Memory.Span);
}
context.ResponseData.Write((uint)_hostName.Length);