From: Brad Hubbard <bhubbard@redhat.com>
Date: Mon, 22 Jul 2019 00:05:09 +0000 (+1000)
Subject: osd/OSDCap: Check for empty namespace
X-Git-Tag: v15.1.0~1801^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=002ced8a5f25cfbecf5f34e147a0c863ecbf77c7;p=ceph.git

osd/OSDCap: Check for empty namespace

Fixes: http://tracker.ceph.com/issues/40835

Signed-off-by: Brad Hubbard <bhubbard@redhat.com>
---

diff --git a/src/osd/OSDCap.cc b/src/osd/OSDCap.cc
index e3d541a91df0..b6df192c31ea 100644
--- a/src/osd/OSDCap.cc
+++ b/src/osd/OSDCap.cc
@@ -115,7 +115,7 @@ bool OSDCapPoolNamespace::is_match(const std::string& pn,
     }
   }
   if (nspace) {
-    if ((*nspace)[nspace->length() - 1] == '*' &&
+    if (!nspace->empty() && nspace->back() == '*' &&
 	boost::starts_with(ns, nspace->substr(0, nspace->length() - 1))) {
       return true;
     }