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9e5abec6f1
On oss-fuzz, the LibJS REPL is provided a file encoded with Windows-1252
with the following contents:
/ô¡°½/
The REPL assumes the input file is UTF-8. So in Windows-1252, the above
is represented as [0x2f 0xf4 0xa1 0xb0 0xbd 0x2f]. The inner 4 bytes are
actually a valid UTF-8 encoding if we only look at the most significant
bits to parse leading/continuation bytes. However, it decodes to the
code point U+121c3d, which is not a valid code point.
This commit adds additional validation to ensure the decoded code point
itself is also valid.
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| .. | ||
| AK | ||
| Kernel | ||
| LibC | ||
| LibCompress | ||
| LibCore | ||
| LibCpp | ||
| LibCrypto | ||
| LibEDID | ||
| LibELF | ||
| LibGfx | ||
| LibGL | ||
| LibIMAP | ||
| LibJS | ||
| LibM | ||
| LibMarkdown | ||
| LibPDF | ||
| LibPthread | ||
| LibRegex | ||
| LibSQL | ||
| LibTest | ||
| LibTextCodec | ||
| LibThreading | ||
| LibTimeZone | ||
| LibTLS | ||
| LibTTF | ||
| LibUnicode | ||
| LibWasm | ||
| LibWeb | ||
| Spreadsheet | ||
| UserspaceEmulator | ||
| CMakeLists.txt | ||