varlena_null_dereference.patch

text/x-patch

Filename: varlena_null_dereference.patch

Type: text/x-patch

Part: 0

Message: small fix to possible null pointer dereference in byteaout() varlena.c

Patch

Same data as JSON: GET /api/v1/attachments/:id/patch the parsed metadata as JSON — format, series position, per-file stats; never the diff bytes. API reference →

Format: unified

File	+	−
src/backend/utils/adt/varlena.c	2	1

diff --git a/src/backend/utils/adt/varlena.c b/src/backend/utils/adt/varlena.c
index 363fd3c..48ee55d 100644
--- a/src/backend/utils/adt/varlena.c
+++ b/src/backend/utils/adt/varlena.c
@@ -351,6 +351,7 @@ byteaout(PG_FUNCTION_ARGS)
 			else
 				*rp++ = *vp;
 		}
+                *rp = '\0';
 	}
 	else
 	{
@@ -358,7 +359,7 @@ byteaout(PG_FUNCTION_ARGS)
 			 bytea_output);
 		rp = result = NULL;		/* keep compiler quiet */
 	}
-	*rp = '\0';
+
 	PG_RETURN_CSTRING(result);
 }