mirror of
https://github.com/azalea-rs/simdnbt.git
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add fuzzer and fix ub lmao
This commit is contained in:
parent
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commit
9d4f1ec4c2
10 changed files with 1072 additions and 22 deletions
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||||
"byteorder",
|
||||
"cesu8",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "walkdir"
|
||||
version = "2.5.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "29790946404f91d9c5d06f9874efddea1dc06c5efe94541a7d6863108e3a5e4b"
|
||||
dependencies = [
|
||||
"same-file",
|
||||
"winapi-util",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen"
|
||||
version = "0.2.92"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "4be2531df63900aeb2bca0daaaddec08491ee64ceecbee5076636a3b026795a8"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"wasm-bindgen-macro",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-backend"
|
||||
version = "0.2.92"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "614d787b966d3989fa7bb98a654e369c762374fd3213d212cfc0251257e747da"
|
||||
dependencies = [
|
||||
"bumpalo",
|
||||
"log",
|
||||
"once_cell",
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn 2.0.63",
|
||||
"wasm-bindgen-shared",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-macro"
|
||||
version = "0.2.92"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a1f8823de937b71b9460c0c34e25f3da88250760bec0ebac694b49997550d726"
|
||||
dependencies = [
|
||||
"quote",
|
||||
"wasm-bindgen-macro-support",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-macro-support"
|
||||
version = "0.2.92"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "e94f17b526d0a461a191c78ea52bbce64071ed5c04c9ffe424dcb38f74171bb7"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn 2.0.63",
|
||||
"wasm-bindgen-backend",
|
||||
"wasm-bindgen-shared",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-shared"
|
||||
version = "0.2.92"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "af190c94f2773fdb3729c55b007a722abb5384da03bc0986df4c289bf5567e96"
|
||||
|
||||
[[package]]
|
||||
name = "web-sys"
|
||||
version = "0.3.69"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "77afa9a11836342370f4817622a2f0f418b134426d91a82dfb48f532d2ec13ef"
|
||||
dependencies = [
|
||||
"js-sys",
|
||||
"wasm-bindgen",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi-util"
|
||||
version = "0.1.8"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "4d4cc384e1e73b93bafa6fb4f1df8c41695c8a91cf9c4c64358067d15a7b6c6b"
|
||||
dependencies = [
|
||||
"windows-sys",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-sys"
|
||||
version = "0.52.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
|
||||
dependencies = [
|
||||
"windows-targets",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-targets"
|
||||
version = "0.52.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "6f0713a46559409d202e70e28227288446bf7841d3211583a4b53e3f6d96e7eb"
|
||||
dependencies = [
|
||||
"windows_aarch64_gnullvm",
|
||||
"windows_aarch64_msvc",
|
||||
"windows_i686_gnu",
|
||||
"windows_i686_gnullvm",
|
||||
"windows_i686_msvc",
|
||||
"windows_x86_64_gnu",
|
||||
"windows_x86_64_gnullvm",
|
||||
"windows_x86_64_msvc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_gnullvm"
|
||||
version = "0.52.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "7088eed71e8b8dda258ecc8bac5fb1153c5cffaf2578fc8ff5d61e23578d3263"
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_msvc"
|
||||
version = "0.52.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9985fd1504e250c615ca5f281c3f7a6da76213ebd5ccc9561496568a2752afb6"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_gnu"
|
||||
version = "0.52.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "88ba073cf16d5372720ec942a8ccbf61626074c6d4dd2e745299726ce8b89670"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_gnullvm"
|
||||
version = "0.52.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "87f4261229030a858f36b459e748ae97545d6f1ec60e5e0d6a3d32e0dc232ee9"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_msvc"
|
||||
version = "0.52.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "db3c2bf3d13d5b658be73463284eaf12830ac9a26a90c717b7f771dfe97487bf"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnu"
|
||||
version = "0.52.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "4e4246f76bdeff09eb48875a0fd3e2af6aada79d409d33011886d3e1581517d9"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnullvm"
|
||||
version = "0.52.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "852298e482cd67c356ddd9570386e2862b5673c85bd5f88df9ab6802b334c596"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
|
||||
version = "0.52.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "bec47e5bfd1bff0eeaf6d8b485cc1074891a197ab4225d504cb7a1ab88b02bf0"
|
||||
|
|
@ -1,3 +1,3 @@
|
|||
[workspace]
|
||||
members = ["simdnbt", "simdnbt-derive"]
|
||||
members = ["simdnbt", "simdnbt-derive", "fuzz"]
|
||||
resolver = "2"
|
||||
|
|
|
|||
4
fuzz/.gitignore
vendored
Normal file
4
fuzz/.gitignore
vendored
Normal file
|
|
@ -0,0 +1,4 @@
|
|||
target
|
||||
corpus
|
||||
artifacts
|
||||
coverage
|
||||
19
fuzz/Cargo.toml
Normal file
19
fuzz/Cargo.toml
Normal file
|
|
@ -0,0 +1,19 @@
|
|||
[package]
|
||||
name = "simdnbt-fuzz"
|
||||
version = "0.0.0"
|
||||
publish = false
|
||||
edition = "2021"
|
||||
|
||||
[package.metadata]
|
||||
cargo-fuzz = true
|
||||
|
||||
[dependencies]
|
||||
libfuzzer-sys = "0.4"
|
||||
simdnbt = { path = "../simdnbt" }
|
||||
|
||||
[[bin]]
|
||||
name = "fuzz_target_1"
|
||||
path = "fuzz_targets/fuzz_target_1.rs"
|
||||
test = false
|
||||
doc = false
|
||||
bench = false
|
||||
11
fuzz/fuzz_targets/fuzz_target_1.rs
Normal file
11
fuzz/fuzz_targets/fuzz_target_1.rs
Normal file
|
|
@ -0,0 +1,11 @@
|
|||
#![no_main]
|
||||
|
||||
use libfuzzer_sys::fuzz_target;
|
||||
|
||||
fuzz_target!(|data: &[u8]| {
|
||||
if let Ok(r) = simdnbt::borrow::read(&mut std::io::Cursor::new(data)) {
|
||||
if let simdnbt::borrow::Nbt::Some(r) = r {
|
||||
r.as_compound().to_owned();
|
||||
}
|
||||
}
|
||||
});
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
use std::hint::unreachable_unchecked;
|
||||
use std::{hint::unreachable_unchecked, marker::PhantomData};
|
||||
|
||||
use crate::{
|
||||
common::{
|
||||
|
|
@ -21,7 +21,7 @@ use super::{
|
|||
};
|
||||
|
||||
/// A list of NBT tags of a single type.
|
||||
#[derive(Clone, Copy)]
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct NbtList<'a: 'tape, 'tape> {
|
||||
pub(crate) element: *const TapeElement, // the initial list element
|
||||
pub(crate) extra_tapes: &'tape ExtraTapes<'a>,
|
||||
|
|
@ -423,18 +423,16 @@ impl<'a, 'tape> NbtList<'a, 'tape> {
|
|||
}
|
||||
|
||||
let length = u32::from(unsafe { value.list_list.0 }) as usize;
|
||||
|
||||
let max_tape_offset = u32::from(unsafe { value.list_list.1 }) as usize;
|
||||
let tape_slice =
|
||||
unsafe { std::slice::from_raw_parts(self.element.add(1), max_tape_offset) };
|
||||
|
||||
Some(ListList {
|
||||
iter: ListListIter {
|
||||
current_tape_offset: 0, // it's an iterator, it starts at 0
|
||||
max_tape_offset,
|
||||
length,
|
||||
tape: tape_slice, // the first element is the listlist element so we don't include it
|
||||
tape: unsafe { self.element.add(1) }, // the first element is the listlist element so we don't include it
|
||||
extra_tapes: self.extra_tapes,
|
||||
_phantom: PhantomData,
|
||||
},
|
||||
})
|
||||
}
|
||||
|
|
@ -644,8 +642,9 @@ pub struct ListListIter<'a, 'tape> {
|
|||
current_tape_offset: usize,
|
||||
max_tape_offset: usize,
|
||||
length: usize,
|
||||
tape: &'tape [TapeElement],
|
||||
tape: *const TapeElement,
|
||||
extra_tapes: *const ExtraTapes<'a>,
|
||||
_phantom: PhantomData<&'tape ()>,
|
||||
}
|
||||
impl<'a: 'tape, 'tape> ListListIter<'a, 'tape> {
|
||||
/// Returns the number of tags directly in this list.
|
||||
|
|
@ -672,11 +671,17 @@ impl<'a: 'tape, 'tape> Iterator for ListListIter<'a, 'tape> {
|
|||
if self.current_tape_offset + 1 >= self.max_tape_offset {
|
||||
return None;
|
||||
}
|
||||
let element = unsafe { self.tape.as_ptr().add(self.current_tape_offset) };
|
||||
|
||||
let element = unsafe { self.tape.add(self.current_tape_offset) };
|
||||
// println!("{:?}", unsafe { *element });
|
||||
let (kind, value) = unsafe { (*element).kind };
|
||||
debug_assert!(kind.is_list());
|
||||
|
||||
let offset = u32::from(unsafe { value.list_list.1 }) as usize;
|
||||
let offset = if matches!(kind, TapeTagKind::CompoundList | TapeTagKind::ListList) {
|
||||
u32::from(unsafe { value.list_list.1 }) as usize
|
||||
} else {
|
||||
1
|
||||
};
|
||||
|
||||
let nbt_list = NbtList {
|
||||
element,
|
||||
|
|
@ -693,9 +698,10 @@ impl Default for ListListIter<'_, '_> {
|
|||
current_tape_offset: 0,
|
||||
max_tape_offset: 0,
|
||||
length: 0,
|
||||
tape: &[],
|
||||
tape: std::ptr::null(),
|
||||
// this won't ever get dereferenced because .next() will return immediately
|
||||
extra_tapes: std::ptr::null(),
|
||||
_phantom: PhantomData,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -785,7 +791,7 @@ impl<'a: 'tape, 'tape> Iterator for CompoundListIter<'a, 'tape> {
|
|||
let (kind, value) = unsafe { (*element).kind };
|
||||
debug_assert_eq!(kind, TapeTagKind::Compound);
|
||||
|
||||
let offset = u32::from(unsafe { value.compound_list.1 }) as usize;
|
||||
let offset = u32::from(unsafe { value.list_list.1 }) as usize;
|
||||
|
||||
let compound = NbtCompound {
|
||||
element,
|
||||
|
|
|
|||
|
|
@ -11,6 +11,7 @@ use std::{
|
|||
};
|
||||
|
||||
use byteorder::ReadBytesExt;
|
||||
use tape::UnalignedU32;
|
||||
|
||||
use crate::{
|
||||
common::{
|
||||
|
|
@ -401,8 +402,8 @@ impl<'a: 'tape, 'tape> NbtTag<'a, 'tape> {
|
|||
if kind != TapeTagKind::ByteArray {
|
||||
return None;
|
||||
}
|
||||
let length_ptr = unsafe { u64::from(value.byte_array) as *const u32 };
|
||||
let length = unsafe { *length_ptr as usize };
|
||||
let length_ptr = unsafe { u64::from(value.byte_array) as *const UnalignedU32 };
|
||||
let length = unsafe { u32::from(*length_ptr).swap_bytes() as usize };
|
||||
let data_ptr = unsafe { length_ptr.add(1) as *const u8 };
|
||||
Some(unsafe { std::slice::from_raw_parts(data_ptr, length) })
|
||||
}
|
||||
|
|
@ -694,4 +695,27 @@ mod tests {
|
|||
assert_eq!(nbt.float("foodExhaustionLevel").unwrap() as u32, 2);
|
||||
assert_eq!(nbt.list("Rotation").unwrap().floats().unwrap().len(), 2);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn get_byte_array() {
|
||||
// found from fuzzing
|
||||
let data = [10, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0];
|
||||
let nbt = super::read(&mut Cursor::new(&data)).unwrap().unwrap();
|
||||
nbt.as_compound().to_owned();
|
||||
}
|
||||
#[test]
|
||||
fn list_of_empty_lists() {
|
||||
// found from fuzzing
|
||||
// BaseNbt { name: m"", tag: NbtTag::NbtCompound { m"": NbtTag::List(List::List([List::Empty])) } }
|
||||
let data = [10, 0, 0, 9, 0, 0, 9, 0, 0, 0, 1, 0, 9, 0, 0, 0, 0];
|
||||
let nbt = super::read(&mut Cursor::new(&data)).unwrap().unwrap();
|
||||
nbt.as_compound().to_owned();
|
||||
}
|
||||
#[test]
|
||||
fn list_of_byte_arrays() {
|
||||
// BaseNbt { name: m"", tag: NbtCompound { values: [(m"", List(List([List::ByteArray([])])))] } }
|
||||
let data = [10, 0, 0, 9, 0, 0, 9, 0, 0, 0, 1, 7, 0, 0, 0, 0, 0];
|
||||
let nbt = super::read(&mut Cursor::new(&data)).unwrap().unwrap();
|
||||
nbt.as_compound().to_owned();
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -5,6 +5,7 @@ use crate::common::{
|
|||
LONG_ID, SHORT_ID, STRING_ID,
|
||||
};
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct MainTape {
|
||||
elements: Vec<TapeElement>,
|
||||
}
|
||||
|
|
@ -29,11 +30,6 @@ impl MainTape {
|
|||
self.elements.as_ptr()
|
||||
}
|
||||
}
|
||||
impl Debug for MainTape {
|
||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
||||
write!(f, "MainTape")
|
||||
}
|
||||
}
|
||||
impl Default for MainTape {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
|
|
@ -42,6 +38,7 @@ impl Default for MainTape {
|
|||
}
|
||||
}
|
||||
|
||||
#[derive(Clone, Copy)]
|
||||
#[repr(C)]
|
||||
pub union TapeElement {
|
||||
pub kind: (TapeTagKind, TapeTagValue),
|
||||
|
|
|
|||
|
|
@ -135,13 +135,15 @@ impl fmt::Display for Mutf8Str {
|
|||
|
||||
impl fmt::Debug for Mutf8Str {
|
||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
||||
f.debug_tuple("Mutf8Str").field(&self.to_str()).finish()
|
||||
f.write_str("m")?;
|
||||
fmt::Debug::fmt(&self.to_str(), f)
|
||||
}
|
||||
}
|
||||
|
||||
impl fmt::Debug for Mutf8String {
|
||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
||||
f.debug_tuple("Mutf8String").field(&self.to_str()).finish()
|
||||
f.write_str("m")?;
|
||||
fmt::Debug::fmt(&self.to_str(), f)
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue