From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Tue, 28 Nov 2017 13:06:34 +0000 (+0900)
Subject: cap-list: check range of numeric value
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=e9c8fdf4faa84ccab92a78caa2fc899d3e42bcbe;p=elogind.git

cap-list: check range of numeric value
---

diff --git a/src/basic/cap-list.c b/src/basic/cap-list.c
index 2e9b2d9a5..2b1779668 100644
--- a/src/basic/cap-list.c
+++ b/src/basic/cap-list.c
@@ -53,8 +53,12 @@ int capability_from_name(const char *name) {
 
         /* Try to parse numeric capability */
         r = safe_atoi(name, &i);
-        if (r >= 0 && i >= 0)
-                return i;
+        if (r >= 0) {
+                if (i >= 0 && i < (int) ELEMENTSOF(capability_names))
+                        return i;
+                else
+                        return -EINVAL;
+        }
 
         /* Try to parse string capability */
         sc = lookup_capability(name, strlen(name));