diff --git a/libports/src/lib/libc_terminal/plugin.cc b/libports/src/lib/libc_terminal/plugin.cc
index 12add6c1b..6811e8664 100644
--- a/libports/src/lib/libc_terminal/plugin.cc
+++ b/libports/src/lib/libc_terminal/plugin.cc
@@ -162,7 +162,10 @@ namespace {
 				 * This is important, i.e., to convince the gdbserver code to
 				 * cooperate with us.
 				 */
-				if (buf) buf->st_mode = S_IFCHR;
+				if (buf) {
+					Genode::memset(buf, 0, sizeof(struct stat));
+					buf->st_mode = S_IFCHR;
+				}
 				return 0;
 			}
 
diff --git a/ports/src/noux/fs_file_system.h b/ports/src/noux/fs_file_system.h
index 7c17dcd20..ef3cdf1fc 100644
--- a/ports/src/noux/fs_file_system.h
+++ b/ports/src/noux/fs_file_system.h
@@ -189,6 +189,8 @@ namespace Noux {
 					return false;
 				}
 
+				memset(&sysio->stat_out.st, 0, sizeof(sysio->stat_out.st));
+
 				sysio->stat_out.st.size = status.size;
 
 				sysio->stat_out.st.mode = Sysio::STAT_MODE_FILE | 0777;
diff --git a/ports/src/noux/tar_file_system.h b/ports/src/noux/tar_file_system.h
index fa4aaf56e..ac7833bfd 100644
--- a/ports/src/noux/tar_file_system.h
+++ b/ports/src/noux/tar_file_system.h
@@ -344,11 +344,12 @@ namespace Noux {
 						PDBG("unhandled record type %d", record->type());
 				}
 
-				sysio->stat_out.st.mode  = mode;
-				sysio->stat_out.st.size  = record->size();
-				sysio->stat_out.st.uid   = record->uid();
-				sysio->stat_out.st.gid   = record->gid();
-				sysio->stat_out.st.inode = (unsigned long)record;
+				memset(&sysio->stat_out.st, 0, sizeof(sysio->stat_out.st));
+				sysio->stat_out.st.mode   = mode;
+				sysio->stat_out.st.size   = record->size();
+				sysio->stat_out.st.uid    = record->uid();
+				sysio->stat_out.st.gid    = record->gid();
+				sysio->stat_out.st.inode  = (unsigned long)record;
 				return true;
 			}