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| author | Andres Freund <andres@anarazel.de> | 2023-07-24 19:07:52 -0700 |
|---|---|---|
| committer | Andres Freund <andres@anarazel.de> | 2023-07-24 19:07:52 -0700 |
| commit | f3bc5192889f6f02aa10ca9f24df4eab1f1493c1 (patch) | |
| tree | 38a4d7e59e07b39ddb19e1010f3d5ac8861aebc0 /src/backend/executor/execReplication.c | |
| parent | d6677b93c79b19bf3772cb32fcea0a77d8520db9 (diff) | |
| download | postgresql-f3bc5192889f6f02aa10ca9f24df4eab1f1493c1.tar.gz postgresql-f3bc5192889f6f02aa10ca9f24df4eab1f1493c1.zip | |
Fix off-by-one in LimitAdditionalPins()
Due to the bug LimitAdditionalPins() could return 0, violating
LimitAdditionalPins()'s API ("One additional pin is always allowed"). This
could be hit when setting shared_buffers very low and using a fair amount of
concurrency.
This bug was introduced in 31966b151e6a.
Author: "Anton A. Melnikov" <aamelnikov@inbox.ru>
Reported-by: "Anton A. Melnikov" <aamelnikov@inbox.ru>
Reported-by: Victoria Shepard
Discussion: https://postgr.es/m/ae46f2fb-5586-3de0-b54b-1bb0f6410ebd@inbox.ru
Backpatch: 16-
Diffstat (limited to 'src/backend/executor/execReplication.c')
0 files changed, 0 insertions, 0 deletions