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fix oom errors with malformed inputs

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This commit is contained in:
Robin Appelman 2022-12-22 22:53:46 +01:00
commit 148c6c59bd
3 changed files with 7 additions and 5 deletions
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3
src/data/mod.rs
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@ -15,6 +15,7 @@ use binrw::{BinRead, BinResult, ReadOptions};
use bitflags::bitflags;
use bv::BitVec;
use std::borrow::Cow;
use std::cmp::min;
use std::fmt;
use std::fmt::{Debug, Display, Formatter};
use std::io::{Cursor, Read};
@ -388,7 +389,7 @@ impl VisData {
pub fn visible_clusters(&self, cluster: i16) -> BitVec<u8> {
let offset = self.pvs_offsets[cluster as usize] as usize;
let pvs_buffer = &self.data[offset..];
let mut visible_clusters = BitVec::with_capacity(self.cluster_count as u64);
let mut visible_clusters = BitVec::with_capacity(min(self.cluster_count as u64, 1024));
visible_clusters.resize(self.cluster_count as u64, false);
let mut cluster_index = 0;