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From jeag...@apache.org
Subject svn commit: r1582451 - in /hadoop/common/trunk/hadoop-common-project/hadoop-common: CHANGES.txt src/main/native/src/org/apache/hadoop/security/hadoop_user_info.c
Date Thu, 27 Mar 2014 19:56:26 GMT
Author: jeagles
Date: Thu Mar 27 19:56:26 2014
New Revision: 1582451

URL: http://svn.apache.org/r1582451
Log:
HADOOP-10442. Group look-up can cause segmentation fault when certain JNI-based mapping module
is used. (Kihwal Lee via jeagles)

Modified:
    hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
    hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/security/hadoop_user_info.c

Modified: hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt?rev=1582451&r1=1582450&r2=1582451&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt (original)
+++ hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt Thu Mar 27 19:56:26
2014
@@ -500,6 +500,9 @@ Release 2.4.0 - UNRELEASED
 
     HADOOP-10399. FileContext API for ACLs. (Vinayakumar B via cnauroth)
 
+    HADOOP-10442. Group look-up can cause segmentation fault when certain
+    JNI-based mapping module is used. (Kihwal Lee via jeagles)
+
 Release 2.3.1 - UNRELEASED
 
   INCOMPATIBLE CHANGES

Modified: hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/security/hadoop_user_info.c
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/security/hadoop_user_info.c?rev=1582451&r1=1582450&r2=1582451&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/security/hadoop_user_info.c
(original)
+++ hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/security/hadoop_user_info.c
Thu Mar 27 19:56:26 2014
@@ -178,6 +178,11 @@ int hadoop_user_info_getgroups(struct ha
       return ret;
     }
     return 0;
+  } else if (ret != -1) {
+    // Any return code that is not -1 is considered as error.
+    // Since the user lookup was successful, there should be at least one
+    // group for this user.
+    return EIO;
   }
   ngids = realloc(uinfo->gids, sizeof(uinfo->gids[0]) * ngroups);
   if (!ngids) {



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