From 4a0e282b09879b847dca81f34d3c36431f3221dc Mon Sep 17 00:00:00 2001
From: lifubang <lifubang@acmcoder.com>
Date: Tue, 25 Mar 2025 02:34:22 +0000
Subject: [PATCH] test: check whether runc set a correct default home env or
 not

Signed-off-by: lifubang <lifubang@acmcoder.com>
---
 tests/integration/exec.bats | 14 ++++++++++++++
 tests/integration/run.bats  | 16 ++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/tests/integration/exec.bats b/tests/integration/exec.bats
index 8e96f3ddd..43fe4c3cd 100644
--- a/tests/integration/exec.bats
+++ b/tests/integration/exec.bats
@@ -352,3 +352,17 @@ EOF
 	[ ${#lines[@]} -eq 1 ]
 	[[ ${lines[0]} = *"exec /run.sh: no such file or directory"* ]]
 }
+
+# https://github.com/opencontainers/runc/issues/4688
+@test "runc exec check default home" {
+	# --user can't work in rootless containers that don't have idmap.
+	[ $EUID -ne 0 ] && requires rootless_idmap
+	echo 'tempuser:x:2000:2000:tempuser:/home/tempuser:/bin/sh' >>rootfs/etc/passwd
+
+	runc run -d --console-socket "$CONSOLE_SOCKET" test
+	[ "$status" -eq 0 ]
+
+	runc exec -u 2000 test sh -c "echo \$HOME"
+	[ "$status" -eq 0 ]
+	[ "${lines[0]}" = "/home/tempuser" ]
+}
diff --git a/tests/integration/run.bats b/tests/integration/run.bats
index 86d016dc2..d1143cfea 100644
--- a/tests/integration/run.bats
+++ b/tests/integration/run.bats
@@ -219,3 +219,19 @@ EOF
 	[ ${#lines[@]} -eq 1 ]
 	[[ ${lines[0]} = "exec /run.sh: no such file or directory" ]]
 }
+
+# https://github.com/opencontainers/runc/issues/4688
+@test "runc run check default home" {
+	# cannot start containers as another user in rootless setup without idmap
+	[ $EUID -ne 0 ] && requires rootless_idmap
+	echo 'tempuser:x:2000:2000:tempuser:/home/tempuser:/bin/sh' >>rootfs/etc/passwd
+
+	# shellcheck disable=SC2016
+	update_config '	  .process.cwd = "/root"
+			| .process.user.uid = 2000
+			| .process.args |= ["sh", "-c", "echo $HOME"]'
+
+	runc run test_busybox
+	[ "$status" -eq 0 ]
+	[ "${lines[0]}" = "/home/tempuser" ]
+}