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Commit 9a75c19

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author
Sofia Kopikova
committed
PGPRO-11098 add null-pointer check to ptrack_set_init_lsn() function
When ptrack extension is added to shared_preload_libraries, but ptrack.map size is 0, we may encounter segmantation fault when calling ptrack_backup_checkpoint_request_hook() function. This commit adds additional null-pointer checks to ptrack_set_init_lsn() function called by ptrack_backup_checkpoint_request_hook() to avoid this segfault
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‎engine.c

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+4Lines changed: 4 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -659,6 +659,10 @@ XLogRecPtr
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ptrack_set_init_lsn(void)
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{
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XLogRecPtr new_lsn;
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if (ptrack_map_size == 0 || ptrack_map == NULL)
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return InvalidXLogRecPtr;
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if (RecoveryInProgress())
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new_lsn = GetXLogReplayRecPtr(NULL);
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else

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