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test(fuzz): Fix a fuzz-read bug when finishing LZMA

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Chris Hennick 2024-05-06 15:38:25 -07:00
parent b277298d7f
commit 8868a11d23
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GPG key ID: DA47AABA4961C509
1 changed files with 6 additions and 3 deletions
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9
src/read.rs
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@ -13,7 +13,7 @@ use crate::types::{AesMode, AesVendorVersion, DateTime, System, ZipFileData};
use crate::zipcrypto::{ZipCryptoReader, ZipCryptoReaderValid, ZipCryptoValidator};
use indexmap::IndexMap;
use std::borrow::Cow;
use std::io::{self, prelude::*};
use std::io::{self, empty, Empty, prelude::*};
use std::ops::Deref;
use std::path::{Path, PathBuf};
use std::sync::{Arc, OnceLock};
@ -171,7 +171,10 @@ impl<'a> Read for ZipFileReader<'a> {
}
}
static EMPTY: Empty = empty();
impl<'a> ZipFileReader<'a> {
/// Consumes this decoder, returning the underlying reader.
pub fn into_inner(self) -> io::Take<&'a mut dyn Read> {
match self {
@ -188,8 +191,8 @@ impl<'a> ZipFileReader<'a> {
ZipFileReader::Zstd(r) => r.into_inner().finish().into_inner().into_inner(),
#[cfg(feature = "lzma")]
ZipFileReader::Lzma(r) => {
let inner: Box<_> = r.into_inner().finish().unwrap().into();
Read::take(Box::leak(inner), u64::MAX)
let _ = r.into_inner().finish();
Read::take(unsafe {((&EMPTY as *const Empty) as *mut Empty).as_mut()}.unwrap(), 0)
}
}
}