diff --git a/.cargo/audit.toml b/.cargo/audit.toml
index 4334d3ec6c0a2..8baefdb68c2ad 100644
--- a/.cargo/audit.toml
+++ b/.cargo/audit.toml
@@ -51,4 +51,6 @@ ignore = [
     "RUSTSEC-2024-0376",
     #rustls network-reachable panic in `Acceptor::accept`
     "RUSTSEC-2024-0399",
+    # `idna` accepts Punycode labels that do not produce any non-ASCII when decoded
+    "RUSTSEC-2024-0421",
 ]
diff --git a/src/common/arrow/src/arrow/io/ipc/compression.rs b/src/common/arrow/src/arrow/io/ipc/compression.rs
index 2c8e33afddb28..af679c59a25d7 100644
--- a/src/common/arrow/src/arrow/io/ipc/compression.rs
+++ b/src/common/arrow/src/arrow/io/ipc/compression.rs
@@ -19,7 +19,7 @@ use crate::arrow::error::Result;
 #[cfg_attr(docsrs, doc(cfg(feature = "io_ipc_compression")))]
 pub fn decompress_lz4(input_buf: &[u8], output_buf: &mut [u8]) -> Result<()> {
     use std::io::Read;
-    let _ = lz4_flex::frame::FrameDecoder::new(input_buf).read(output_buf)?;
+    lz4_flex::frame::FrameDecoder::new(input_buf).read_exact(output_buf)?;
     Ok(())
 }