diff --git a/proxmox-io/src/read.rs b/proxmox-io/src/read.rs
index d24a32fd..062615b3 100644
--- a/proxmox-io/src/read.rs
+++ b/proxmox-io/src/read.rs
@@ -296,7 +296,7 @@ impl<R: io::Read> ReadExt for R {
     fn read_exact_or_eof(&mut self, mut buf: &mut [u8]) -> io::Result<bool> {
         let mut read_bytes = 0;
         loop {
-            match self.read(&mut buf) {
+            match self.read(buf) {
                 Ok(0) => {
                     if read_bytes == 0 {
                         return Ok(false);
diff --git a/proxmox-io/src/vec/mod.rs b/proxmox-io/src/vec/mod.rs
index 730dbb3b..98dce291 100644
--- a/proxmox-io/src/vec/mod.rs
+++ b/proxmox-io/src/vec/mod.rs
@@ -52,9 +52,8 @@ pub use byte_vec::ByteVecExt;
 /// marked as unsafe for good measure.
 #[inline]
 pub unsafe fn uninitialized(len: usize) -> Vec<u8> {
-    let mut out = Vec::with_capacity(len);
-    out.set_len(len);
-    out
+    let data = std::alloc::alloc(std::alloc::Layout::array::<u8>(len).unwrap());
+    Vec::from_raw_parts(data as *mut u8, len, len)
 }
 
 /// Shortcut to zero out a slice of bytes.