[SERVER-28799] Don't dereference the boost::optional<MigrationSessionId> maintained by MigrationDestinationManager unless it is known to be set Created: 14/Apr/17 Updated: 12/Oct/17 Resolved: 15/Apr/17 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | Sharding |
| Affects Version/s: | None |
| Fix Version/s: | 3.5.6 |
| Type: | Bug | Priority: | Major - P3 |
| Reporter: | Dianna Hohensee (Inactive) | Assignee: | Dianna Hohensee (Inactive) |
| Resolution: | Done | Votes: | 0 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Issue Links: |
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| Backwards Compatibility: | Fully Compatible | ||||
| Operating System: | ALL | ||||
| Sprint: | Sharding 2017-05-08 | ||||
| Participants: | |||||
| Linked BF Score: | 0 | ||||
| Description |
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Discovered in BF-5146 fuzzer test. We can dereference MigrationDestionationManager::_sessionId, a boost::optional<MigrationSessionId>, when it is unset: https://github.com/mongodb/mongo/blob/ed80d2d3c5735c424e5c1cd58169077327976d2e/src/mongo/db/s/migration_destination_manager.cpp#L356 Backports are not needed, as the log message in which _sessionId is dereferenced is new as of v3.5 |
| Comments |
| Comment by Githook User [ 15/Apr/17 ] |
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Author: {u'username': u'DiannaHohensee', u'name': u'Dianna Hohensee', u'email': u'dianna.hohensee@10gen.com'}Message: |