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  1. Core Server
  2. SERVER-19929

Audit sharding code for potential use-after-frees

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Details

    • Task
    • Status: Closed
    • Major - P3
    • Resolution: Done
    • 3.1.6
    • None
    • Sharding
    • Fully Compatible
    • Sharding 9 (09/18/15), Sharding A (10/09/15)
    • 0

    Description

      There have been at least 3 crashes in sharding code caused by use-after-frees or the misuse of references in the 3.1.x cycle: SERVER-19367, SERVER-19839, and SERVER-18815 (the last commit)

      We should proactively search for similar issues to avoid costly debugging later.

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        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. SERVER-19367 Segfault establishing shard connection in Chunk::splitMulti

          • Major - P3 - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. SERVER-19839 Use-after-free in ShardRegistry::runCommandWithNotMasterRetries

          • Major - P3 - Major loss of function.
          • Closed

          Task - A task that needs to be done. SERVER-18815 Shard object lifetime shoud be managed by the ShardRegistry

          • Major - P3 - Major loss of function.
          • Closed
          related to

          Bug - A problem which impairs or prevents the functions of the product. SERVER-20559 Race condition in shard registry during concurrent sharding operations

          • Major - P3 - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. SERVER-20629 Use-after-free in CatalogManagerReplicaSet::_runReadCommand

          • Major - P3 - Major loss of function.
          • Closed

          Activity

            People

              schwerin@mongodb.com Andy Schwerin
              kamran.khan Kamran K.
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              Dates

                Created:
                Updated:
                Resolved: