Git-Mirrors/RetroShare
1
0
Fork 0
mirror of https://github.com/RetroShare/RetroShare.git synced 2025-01-26 15:28:28 -05:00
Code Issues Actions Packages Projects Releases Wiki Activity

fixed deserialiser for rawWrapper causing crashes when wrapper memory is not initialized properly by the client

Browse Source
This commit is contained in:
csoler 2020-04-26 14:19:44 +02:00
parent 86897b60de
commit 76e9387467
No known key found for this signature in database
GPG Key ID: 7BCA522266C0804C
1 changed files with 15 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
libretroshare/src/serialiser/rstypeserializer.cc
View File

@ -543,10 +543,16 @@ void RsTypeSerializer::RawMemoryWrapper::serial_process(
break;
case RsGenericSerializer::DESERIALIZE:
{
// In case first,second is not properly initialized, we set them to nullptr,0
first = nullptr;
second = 0;
uint32_t serialSize = 0;
RS_SERIAL_PROCESS(serialSize);
if(!ctx.mOk) break;
ctx.mOk = serialSize <= MAX_SERIALIZED_CHUNK_SIZE;
ctx.mOk = (serialSize <= MAX_SERIALIZED_CHUNK_SIZE);
if(!ctx.mOk)
{
RsErr() << __PRETTY_FUNCTION__
@ -565,25 +571,23 @@ void RsTypeSerializer::RawMemoryWrapper::serial_process(
break;
}
ctx.mOk = ctx.mSize >= ctx.mOffset + serialSize;
ctx.mOk = (ctx.mSize >= ctx.mOffset + serialSize);
if(!ctx.mOk)
{
RsErr() << __PRETTY_FUNCTION__ << std::errc::no_buffer_space
<< std::endl;
RsErr() << __PRETTY_FUNCTION__ << std::errc::no_buffer_space << std::endl;
print_stacktrace();
clear();
break;
}
if(serialSize != second)
{
first = reinterpret_cast<uint8_t*>(realloc(first, serialSize));
second = serialSize;
}
first = reinterpret_cast<uint8_t*>(malloc(serialSize));
second = serialSize;
memcpy(first, ctx.mData + ctx.mOffset, serialSize);
ctx.mOffset += serialSize;
memcpy(first, ctx.mData + ctx.mOffset, second);
ctx.mOffset += second;
break;
}
case RsGenericSerializer::PRINT: break;