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+```toml
+[advisory]
+id = "RUSTSEC-0000-0000"
+package = "git2"
+date = "2026-05-12"
+url = "https://github.com/rust-lang/git2-rs/pull/1250"
+informational = "unsound"
+keywords = ["git2"]
+
+[versions]
+patched = ["> 0.20.4"]
+```
+
+# Potential undefined behavior when calling Remote::list()
+
+When calling `Remote::list()` for a remote of a git repository, when that remote does not advertise any references, git2 passes a null pointer to the unsafe function `slice::from_raw_parts()`. Based on the safety section documentation of function, data must be non-null even for slices of length zero. Thus, the use of a null pointer leads to undefined behavior.