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  1. Core Server
  2. SERVER-11472

segfault on updateUser on RHEL 6.2

    • Type: Icon: Bug Bug
    • Resolution: Done
    • Priority: Icon: Critical - P2 Critical - P2
    • 2.5.4
    • Affects Version/s: None
    • Component/s: None
    • Labels:
    • Environment:
    • ALL

      I'm on an EC2 instance running RHEL 6.4. I found this problem in both 2.5.3 and an all-green-on-RHEL version of mongo from last night

      $ mongod --version
      db version v2.5.4-pre-
      2013-10-30T10:09:30.158-0400 git version: 97c3a3d2b487e9376d484d33ede2895e379a3033 modules: enterprise
      2013-10-30T10:09:30.159-0400 OpenSSL version: OpenSSL 1.0.0-fips 29 Mar 2010
      

      ------------------------------------------------------------------------------

      Briefly: I start a standalone mongod with audit logging. I create a
      userAdminAnyDatabase-enabled user, log in as that user, create a new user "oo"
      in a different database, and then try to update that user with customData.
      The server crashes on the update.

      In detail:

      First, start a mongod, with this script:

      rm -r /tmp/mongoda
      
      mkdir /tmp/mongoda
      
      mongod --port 27017 --logpath /tmp/mongoda/mongo.log --logappend --auditLog bsonfile --auth --auditPath /tmp/mongoda/audit.log --dbpath /tmp/mongoda --smallfiles --nopreallocj
      

      Then, do this in the shell, or put it into a file boom.js and run it with
      mongo boom.js:

      db = db.getMongo().getDB('admin')
      
      db.addUser({user:"uu", pwd:"pp", roles:["userAdminAnyDatabase", "clusterAdmin", "readWriteAnyDatabase", "dbAdminAnyDatabase"]})
      
      db.auth("uu","pp")
      
      db = db.getMongo().getDB('oink')
      
      
      db.addUser({user:"oo", pwd:"pp", roles:["userAdmin", "readWrite", "dbAdmin"]})
      
      db.runCommand({updateUser: "oo", customData:{species:"pig"}})
      

      At the updateUser command, the mongod dies with:

      Invalid access at address: 0 from thread: conn1
      Got signal: 11 (Segmentation fault).
      Backtrace:
      0xed9096 0x790422 0x7907bb 0x3945c0f500 0xb18157 0xb08c94 0xb092f9 0xb0ba03 0xb0cd6a 0xb0cb7d 0xb1992e 0x96a722 0x9937b4 0x994ff2 0x995744 0xb670cf 0xb6d387 0xaaca6e 0xaafb28 0x79cd9f
       mongod(_ZN5mongo15printStackTraceERSo+0x26) [0xed9096]
       mongod(_ZN5mongo10abruptQuitEi+0x3c2) [0x790422]
       mongod(_ZN5mongo24abruptQuitWithAddrSignalEiP7siginfoPv+0x24b) [0x7907bb]
       /lib64/libpthread.so.0() [0x3945c0f500]
       mongod(_ZNK5mongo5audit15UpdateUserEvent13putParamsBSONERNS_14BSONObjBuilderE+0x3a7) [0xb18157]
       mongod(_ZNK5mongo5audit10AuditEvent12generateBSONEv+0x804) [0xb08c94]
       mongod(_ZNK5mongo5audit10AuditEvent6toBSONEv+0x69) [0xb092f9]
       mongod() [0xb0ba03]
       mongod(_ZN5mongo6logger21RotatableFileAppenderINS_5audit10AuditEventEE6appendERKS3_+0xfa) [0xb0cd6a]
       mongod(_ZN5mongo6logger9LogDomainINS_5audit10AuditEventEE6appendERKS3_+0x6d) [0xb0cb7d]
       mongod(_ZN5mongo5audit13logUpdateUserEPNS_11ClientBasicERKNS_8UserNameEbPKNS_7BSONObjEPKSt6vectorINS_8RoleNameESaISA_EE+0x16e) [0xb1992e]
       mongod(_ZN5mongo13CmdUpdateUser3runERKSsRNS_7BSONObjEiRSsRNS_14BSONObjBuilderEb+0x1d2) [0x96a722]
       mongod(_ZN5mongo12_execCommandEPNS_7CommandERKSsRNS_7BSONObjEiRSsRNS_14BSONObjBuilderEb+0x34) [0x9937b4]
       mongod(_ZN5mongo7Command11execCommandEPS0_RNS_6ClientEiPKcRNS_7BSONObjERNS_14BSONObjBuilderEb+0x902) [0x994ff2]
       mongod(_ZN5mongo12_runCommandsEPKcRNS_7BSONObjERNS_11_BufBuilderINS_16TrivialAllocatorEEERNS_14BSONObjBuilderEbi+0x1c4) [0x995744]
       mongod(_ZN5mongo11runCommandsEPKcRNS_7BSONObjERNS_5CurOpERNS_11_BufBuilderINS_16TrivialAllocatorEEERNS_14BSONObjBuilderEbi+0x3f) [0xb670cf]
       mongod(_ZN5mongo8runQueryERNS_7MessageERNS_12QueryMessageERNS_5CurOpES1_+0x897) [0xb6d387]
       mongod() [0xaaca6e]
       mongod(_ZN5mongo16assembleResponseERNS_7MessageERNS_10DbResponseERKNS_11HostAndPortE+0x478) [0xaafb28]
       mongod(_ZN5mongo16MyMessageHandler7processERNS_7MessageEPNS_21AbstractMessagingPortEPNS_9LastErrorE+0xef) [0x79cd9f]
      $ mongod --version
      db version v2.5.4-pre-
      2013-10-30T10:09:30.158-0400 git version: 97c3a3d2b487e9376d484d33ede2895e379a3033 modules: enterprise
      2013-10-30T10:09:30.159-0400 OpenSSL version: OpenSSL 1.0.0-fips 29 Mar 2010
      

            Assignee:
            matt.dannenberg Matt Dannenberg
            Reporter:
            bard.bloom@10gen.com bard.bloom@10gen.com
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            5 Start watching this issue

              Created:
              Updated:
              Resolved: