diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index a452abc4bb96..bff2e17aa0ba 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -6420,6 +6420,10 @@ int smb2_read(struct ksmbd_work *work)
 	}
 
 	offset = le64_to_cpu(req->Offset);
+	if (offset < 0) {
+		err = -EINVAL;
+		goto out;
+	}
 	length = le32_to_cpu(req->Length);
 	mincount = le32_to_cpu(req->MinimumCount);