From: Florian Forster <octo@collectd.org>
Date: Wed, 24 Jan 2024 14:08:14 +0000 (+0100)
Subject: fix: df plugin: Fix an array out of bounds crash.
X-Git-Tag: collectd-6.0.0.rc1~3^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=bfd25a4a46cda204d759a62269f198ad0354ca23;p=thirdparty%2Fcollectd.git

fix: df plugin: Fix an array out of bounds crash.

The second argument of the `for` loop always evaluated to true, causing the
code to read past the end of the array.

ChangeLog: df plugin: An out of bounds read, causing segmentation faults, has been fixed.
---

diff --git a/src/df.c b/src/df.c
index fb81a1bb8..bb12519d0 100644
--- a/src/df.c
+++ b/src/df.c
@@ -332,7 +332,7 @@ static int df_read(void) {
       &fam_inode_utilization,
   };
 
-  for (size_t i = 0; STATIC_ARRAY_SIZE(families); i++) {
+  for (size_t i = 0; i < STATIC_ARRAY_SIZE(families); i++) {
     if (families[i]->metric.num == 0) {
       continue;
     }