systemd/SOURCES/0717-execute-Pass-AT_FDCWD-instead-of-1.patch

From 7d3b9e98e22f92561c98f6bf838cc830324834e3 Mon Sep 17 00:00:00 2001
From: Daan De Meyer <daan.j.demeyer@gmail.com>
Date: Tue, 13 Dec 2022 10:50:01 +0000
Subject: [PATCH] execute: Pass AT_FDCWD instead of -1

Let's enforce that callers pass AT_FDCWD as read_dfd to load_credential()
to avoid an assert() in read_full_file_full() if read_dfd is -1.

(cherry picked from commit 661e4251a5b157d1aee1df98fbd2f0c95285ebba)

Resolves: RHEL-31783
---
 src/core/execute.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/core/execute.c b/src/core/execute.c
index ea36254241..13222ddea3 100644
--- a/src/core/execute.c
+++ b/src/core/execute.c
@@ -2662,6 +2662,7 @@ static int load_credential(
         assert(id);
         assert(path);
         assert(unit);
+        assert(read_dfd >= 0 || read_dfd == AT_FDCWD);
         assert(write_dfd >= 0);
         assert(left);
 
@@ -2888,7 +2889,7 @@ static int acquire_credentials(
                                         lc->path,
                                         lc->encrypted,
                                         unit,
-                                        -1,
+                                        AT_FDCWD,
                                         dfd,
                                         uid,
                                         ownership_ok,