pgvector.git / summary / log / commit / refs

commit    a0eaf70d17d538ce4febc3dfdd2a7a429fc25f42
Author:   Andrew Kane <andrew@ankane.org>
Date:     Thu Jun 18 18:03:09 2026 +0000

    Hardened VectorArraySet [skip ci]


 src/ivfflat.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/ivfflat.h b/src/ivfflat.h
index cb07e129..e0c06b7f 100644
--- a/src/ivfflat.h
+++ b/src/ivfflat.h
@@ -309,7 +309,12 @@ VectorArrayGet(VectorArray arr, int offset)
 static inline void
 VectorArraySet(VectorArray arr, int offset, Pointer val)
 {
-	memcpy(VectorArrayGet(arr, offset), val, VARSIZE_ANY(val));
+	Size		size = VARSIZE_ANY(val);
+
+	if (size > arr->itemsize)
+		elog(ERROR, "safety check failed");
+
+	memcpy(VectorArrayGet(arr, offset), val, size);
 }
 
 /* Methods */


[parent: 586e7515bafe]