From: Philip Lorenz <philip@bithub.de>
Date: Wed, 9 Apr 2014 17:08:45 +0000 (+0200)
Subject: nspawn: Fix erroneous OOM when building group list
X-Git-Tag: v213~452
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=70f539ca147694c2a61131b7068526d88decd931;ds=sidebyside

nspawn: Fix erroneous OOM when building group list

change_uid_gid() never initialises sz which may cause greedy_realloc to
skip the initial buffer allocation.
---

diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
index 84724d59c..0bd52da56 100644
--- a/src/nspawn/nspawn.c
+++ b/src/nspawn/nspawn.c
@@ -2366,7 +2366,7 @@ static int change_uid_gid(char **_home) {
         _cleanup_fclose_ FILE *f = NULL;
         _cleanup_close_ int fd = -1;
         unsigned n_uids = 0;
-        size_t sz, l;
+        size_t sz = 0, l;
         uid_t uid;
         gid_t gid;
         pid_t pid;