Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 24 insertions, 0 deletions

diff --git a/tests/ui/borrowck/borrowck-loan-of-static-data-issue-27616.rs b/tests/ui/borrowck/borrowck-loan-of-static-data-issue-27616.rs
new file mode 100644
index 000000000..cb801ef1b
--- /dev/null
+++ b/tests/ui/borrowck/borrowck-loan-of-static-data-issue-27616.rs
@@ -0,0 +1,24 @@
+use std::mem;
+
+fn leak<T>(mut b: Box<T>) -> &'static mut T {
+    // isn't this supposed to be safe?
+    let inner = &mut *b as *mut _;
+    mem::forget(b);
+    unsafe { &mut *inner }
+}
+
+fn evil(mut s: &'static mut String)
+{
+    // create alias
+    let alias: &'static mut String = s;
+    let inner: &str = &alias;
+    // free value
+    *s = String::new(); //~ ERROR cannot assign
+    let _spray = "0wned".to_owned();
+    // ... and then use it
+    println!("{}", inner);
+}
+
+fn main() {
+    evil(leak(Box::new("hello".to_owned())));
+}