From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 11 Apr 2012 11:19:26 +0000 (+0200)
Subject: main: unset some bash specific environment variables that might get leaked to us
X-Git-Tag: v183~398
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9543ad166338a7bef8718070f11465df4b9badd7;p=systemd

main: unset some bash specific environment variables that might get leaked to us

https://bugzilla.redhat.com/show_bug.cgi?id=811537
---

diff --git a/src/main.c b/src/main.c
index a0bcbdf0..6656cb4e 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1343,6 +1343,12 @@ int main(int argc, char *argv[]) {
                 unsetenv("HOME");
                 unsetenv("TERM");
 
+                /* When we are invoked by a shell, these might be set,
+                 * but make little sense to pass on */
+                unsetenv("PWD");
+                unsetenv("SHLVL");
+                unsetenv("_");
+
                 /* All other variables are left as is, so that clients
                  * can still read them via /proc/1/environ */
         }