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GDB Stub: validate the address exists before reading/writting to it

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This commit is contained in:
aldelaro5 2021-12-27 16:55:43 -05:00
parent a29d7625dd
commit bfa675cb9d
1 changed files with 5 additions and 4 deletions
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9
Source/Core/Core/PowerPC/GDBStub.cpp
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@ -536,9 +536,10 @@ static void ReadMemory()
if (len * 2 > sizeof reply)
SendReply("E01");
if (!PowerPC::HostIsRAMAddress(addr))
return SendReply("E00");
u8* data = Memory::GetPointer(addr);
if (!data)
return SendReply("E0");
Mem2hex(reply, data, len);
reply[len * 2] = '\0';
SendReply((char*)reply);
@ -560,9 +561,9 @@ static void WriteMemory()
len = (len << 4) | Hex2char(s_cmd_bfr[i++]);
INFO_LOG_FMT(GDB_STUB, "gdb: write memory: {:08x} bytes to {:08x}", len, addr);
u8* dst = Memory::GetPointer(addr);
if (!dst)
if (!PowerPC::HostIsRAMAddress(addr))
return SendReply("E00");
u8* dst = Memory::GetPointer(addr);
Hex2mem(dst, s_cmd_bfr + i + 1, len);
SendReply("OK");
}