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Fix memory leak in pg_restore with zstd-compressed data.

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EndCompressorZstd() neglected to free everything.  This was
most visible with a lot of large objects in the dump.

Per report from Tomasz Szypowski.  Back-patch to v16
where this code came in.

Discussion: https://postgr.es/m/DU0PR04MB94193D038A128EF989F922D199042@DU0PR04MB9419.eurprd04.prod.outlook.com
This commit is contained in:
Tom Lane 2024-12-17 22:31:26 -05:00
parent 18452b70ac
commit 04b8601981
1 changed files with 2 additions and 1 deletions
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3
src/bin/pg_dump/compress_zstd.c
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@ -137,9 +137,10 @@ EndCompressorZstd(ArchiveHandle *AH, CompressorState *cs)
Assert(zstdcs->dstream == NULL);
_ZstdWriteCommon(AH, cs, true);
ZSTD_freeCStream(zstdcs->cstream);
pg_free(zstdcs->output.dst);
}
/* output buffer may be allocated in either mode */
pg_free(zstdcs->output.dst);
pg_free(zstdcs);
}