From 45567bebb757ac1832999d15184a15bfd7d84671 Mon Sep 17 00:00:00 2001
From: Edward Thomson <ethomson@edwardthomson.com>
Date: Wed, 6 May 2026 23:29:31 +0100
Subject: [PATCH] ssh: only allow not found (nonexistent) HOME

Only succeed if the HOME directory is not found. Otherwise, error.
---
 src/libgit2/transports/ssh_libssh2.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/libgit2/transports/ssh_libssh2.c b/src/libgit2/transports/ssh_libssh2.c
index d71cc75b7..d395bd22d 100644
--- a/src/libgit2/transports/ssh_libssh2.c
+++ b/src/libgit2/transports/ssh_libssh2.c
@@ -439,7 +439,13 @@ static int load_known_hosts(LIBSSH2_KNOWNHOSTS **hosts, LIBSSH2_SESSION *session
 
 	GIT_ASSERT_ARG(hosts);
 
-        git_sysdir_expand_homedir_file(&sshdir, SSH_DIR);
+	if ((error = git_sysdir_expand_homedir_file(&sshdir, SSH_DIR)) < 0) {
+		if (error == GIT_ENOTFOUND)
+			error = 0;
+
+		goto out;
+	}
+
         if ((error = git_str_joinpath(&path, git_str_cstr(&sshdir), KNOWN_HOSTS_FILE)) < 0)
 		goto out;