From 754b58b5bae975d427c1d3023646c38283a9f8d1 Mon Sep 17 00:00:00 2001
From: Toggy Smith <git@toggysmith.com>
Date: Sun, 21 Jun 2026 21:32:40 +0100
Subject: [PATCH] mktemp: clean up created file/dir if writing path to stdout
 fails

---
 src/uu/mktemp/src/mktemp.rs        | 15 ++++++++++++++-
 src/uucore/src/lib/mods/display.rs |  1 +
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/uu/mktemp/src/mktemp.rs b/src/uu/mktemp/src/mktemp.rs
index 1f872714f09..33b261010f7 100644
--- a/src/uu/mktemp/src/mktemp.rs
+++ b/src/uu/mktemp/src/mktemp.rs
@@ -435,7 +435,20 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     } else {
         res
     };
-    println_verbatim(res?).map_err_context(|| translate!("mktemp-error-failed-print"))
+
+    let path = res?;
+    let res = println_verbatim(&path);
+
+    // Delete the file/directory if output flush failed.
+    if res.is_err() {
+        if path.is_dir() {
+            fs::remove_dir(&path)?;
+        } else {
+            fs::remove_file(&path)?;
+        }
+    }
+
+    res.map_err_context(|| translate!("mktemp-error-failed-print"))
 }
 
 pub fn uu_app() -> Command {
diff --git a/src/uucore/src/lib/mods/display.rs b/src/uucore/src/lib/mods/display.rs
index 165070e9a53..b79fb6d64bb 100644
--- a/src/uucore/src/lib/mods/display.rs
+++ b/src/uucore/src/lib/mods/display.rs
@@ -52,6 +52,7 @@ pub fn println_verbatim<S: AsRef<OsStr>>(text: S) -> io::Result<()> {
     let mut stdout = io::stdout().lock();
     stdout.write_all_os(text.as_ref())?;
     stdout.write_all(b"\n")?;
+    stdout.flush()?;
     Ok(())
 }