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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2015-09-20 16:48:44 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2015-09-20 16:48:44 -0400 |
| commit | ba51774d87a2a0402628f7bd68295c0b2913cc25 (patch) | |
| tree | b4d139be65869b173fb95a25f78ee63cb0544d1b /src/backend/utils/adt/numeric.c | |
| parent | 85eda7e92c936470515b73682cacabe972e69adc (diff) | |
| download | postgresql-ba51774d87a2a0402628f7bd68295c0b2913cc25.tar.gz postgresql-ba51774d87a2a0402628f7bd68295c0b2913cc25.zip | |
Be more wary about partially-valid LOCALLOCK data in RemoveLocalLock().
RemoveLocalLock() must consider the possibility that LockAcquireExtended()
failed to palloc the initial space for a locallock's lockOwners array.
I had evidently meant to cope with this hazard when the code was originally
written (commit 1785acebf2ed14fd66955e2d9a55d77a025f418d), but missed that
the pfree needed to be protected with an if-test. Just to make sure things
are left in a clean state, reset numLockOwners as well.
Per low-memory testing by Andreas Seltenreich. Back-patch to all supported
branches.
Diffstat (limited to 'src/backend/utils/adt/numeric.c')
0 files changed, 0 insertions, 0 deletions