Ignore the request checksum when creating a delete marker

lib/api/apiUtils/object/createAndStoreObject.js

@@ -322,14 +322,19 @@ function createAndStoreObject(
                     }
                 }
 
-                const headerChecksum = areChecksumsEnabled() ? getChecksumDataFromHeaders(request.headers) : null;
-                if (headerChecksum && headerChecksum.error) {
-                    return next(arsenalErrorFromChecksumError(headerChecksum));
+                // A delete marker has no body and no checksum: an
+                // x-amz-checksum-* header describes the request payload
+                // (e.g. a multi-object delete XML).
+                let checksums = { primary: null, secondary: null };
+                if (!isDeleteMarker) {
+                    const headerChecksum = areChecksumsEnabled()
+                        ? getChecksumDataFromHeaders(request.headers)
+                        : null;
+                    if (headerChecksum && headerChecksum.error) {
+                        return next(arsenalErrorFromChecksumError(headerChecksum));
+                    }
+                    checksums = { primary: headerChecksum || defaultChecksumData, secondary: null };
                 }
-                const checksums = {
-                    primary: headerChecksum || defaultChecksumData,
-                    secondary: null,
-                };
                 return dataStore(
                     objectKeyContext,
                     cipherBundle,

lib/api/multiObjectDelete.js

@@ -428,7 +428,7 @@ function getObjMetadataAndDelete(
                                         overheadField,
                                         log,
                                         's3:ObjectRemoved:DeleteMarkerCreated',
-                                        (err, result) => callback(err, objMD, deleteInfo, result.versionId),
+                                        (err, result) => callback(err, objMD, deleteInfo, result?.versionId),
                                     );
                                 },
                             ],