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[#1007] metabase: Copy BoltDB value returned by IsSmall

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According to BoltDB documentation bucket `value is only valid for the
life of the transaction`.

Make `DB.IsSmall` copy value slice in order to prevent potential memory
corruptions (e.g. `runtime.stringtobyteslice` cast).

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
This commit is contained in:
Leonard Lyubich 2021-12-06 18:24:53 +03:00 committed by Alex Vanin
parent c383fc6929
commit f9bcb6f5e3
1 changed files with 2 additions and 1 deletions
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3
pkg/local_object_storage/metabase/small.go
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@ -1,6 +1,7 @@
package meta
import (
"github.com/nspcc-dev/neo-go/pkg/util/slice"
"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobovnicza"
objectSDK "github.com/nspcc-dev/neofs-sdk-go/object"
"go.etcd.io/bbolt"
@ -69,5 +70,5 @@ func (db *DB) isSmall(tx *bbolt.Tx, addr *objectSDK.Address) (*blobovnicza.ID, e
return nil, nil
}
return blobovnicza.NewIDFromBytes(blobovniczaID), nil
return blobovnicza.NewIDFromBytes(slice.Copy(blobovniczaID)), nil
}