From 6388c31525eff90aadddad448217fa92232890ca Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 23 Jun 2014 15:53:03 +0200
Subject: [PATCH] coredump: quit early if we cannot store ay coredump to disk

---
 src/journal/coredump.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/journal/coredump.c b/src/journal/coredump.c
index 287e0ed7fdd..764c5e72ab3 100644
--- a/src/journal/coredump.c
+++ b/src/journal/coredump.c
@@ -39,6 +39,7 @@
 #include "conf-parser.h"
 #include "copy.h"
 #include "stacktrace.h"
+#include "path-util.h"
 
 #ifdef HAVE_ACL
 #include <sys/acl.h>
@@ -375,6 +376,13 @@ int main(int argc, char* argv[]) {
         parse_config();
         log_debug("Selected storage '%s'.", coredump_storage_to_string(arg_storage));
 
+        /* Exit early if we cannot write the coredump to disk anyway */
+        if (path_is_read_only_fs("/var/lib") != 0) {
+                log_error("Coredump directory not mounted or not writable, skipping coredump.");
+                r = -EROFS;
+                goto finish;
+        }
+
         r = parse_uid(argv[ARG_UID], &uid);
         if (r < 0) {
                 log_error("Failed to parse UID.");