database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-11-03 09:13:20 +03:00
Code Activity

Fix NULL pointer access in logical replication workers

Browse Source 
From: Petr Jelinek <pjmodos@pjmodos.net>
This commit is contained in:
Peter Eisentraut
2017-01-23 12:33:27 -05:00
parent 6cffe54aef
commit 70c56a014e
2 changed files with 30 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
src/backend/replication/logical/launcher.c
View File

@@ -349,10 +349,21 @@ logicalrep_worker_stop(Oid subid)
ResetLatch(&MyProc->procLatch);
/* Check if the worker has started. */
/* Check worker status. */
LWLockAcquire(LogicalRepWorkerLock, LW_SHARED);
worker = logicalrep_worker_find(subid);
if (!worker || worker->proc)
/*
* Worker is no longer associated with subscription. It must have
* exited, nothing more for us to do.
*/
if (worker->subid == InvalidOid)
{
LWLockRelease(LogicalRepWorkerLock);
return;
}
/* Worker has assigned proc, so it has started. */
if (worker->proc)
break;
}