From cdee66a2abd6e3f2da6efc36f8efd4b5dd46ce4c Mon Sep 17 00:00:00 2001
From: "Heiko Schlittermann (HS12-RIPE)" <hs@schlittermann.de>
Date: Thu, 18 Mar 2021 07:59:21 +0100
Subject: [PATCH] Enforce pid_file_path start at "/"

(cherry picked from commit 60f2a8e797d9ebaea1e3eac4ad28ff64e11bab40)
(cherry picked from commit 6b3d553c733475a1033c8b7a241e6506d7ed73b1)
---
 doc/doc-txt/ChangeLog | 2 ++
 src/src/daemon.c      | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index df6efeea3..d66dc64d1 100644
--- a/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@ -252,6 +252,8 @@ JH/53 Bug 2743: fix immediate-delivery via named queue.  Previously this would
       fail with a taint-check on the spoolfile name, and leave the message
       queued.
 
+HS/01 Enforce absolute PID file path name.
+
 
 Exim version 4.94
 -----------------
diff --git a/src/src/daemon.c b/src/src/daemon.c
index c9e6f334f..0b39fd555 100644
--- a/src/src/daemon.c
+++ b/src/src/daemon.c
@@ -939,6 +939,9 @@ if (override_pid_file_path)
 
 if (!*pid_file_path)
   pid_file_path = string_sprintf("%s/exim-daemon.pid", spool_directory);
+
+if (pid_file_path[0] != '/')
+  log_write(0, LOG_PANIC_DIE, "pid file path %s must be absolute\n", pid_file_path);
 }
 
 
-- 
2.30.2