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FatFsUtil: Skip past entries with invalid filenames.

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This commit is contained in:
Admiral H. Curtiss
2022-06-26 02:08:58 +02:00
parent de9c9f2281
commit 2d8d3358c4
1 changed files with 7 additions and 0 deletions
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7
Source/Core/Common/FatFsUtil.cpp
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@ -615,6 +615,13 @@ static bool Unpack(const std::string path, bool is_directory, const char* name,
if (entry.fname[0] == '\0')
break;
if (entry.fname[0] == '?' && entry.fname[1] == '\0' && entry.altname[0] == '\0')
{
// FATFS indicates entries that have neither a short nor a long filename this way.
// These are likely corrupted file entries so just skip them.
continue;
}
const std::string_view childname = entry.fname;
// Check for path traversal attacks.