diff --git a/sys/fs/tarfs/tarfs_subr.c b/sys/fs/tarfs/tarfs_subr.c
--- a/sys/fs/tarfs/tarfs_subr.c
+++ b/sys/fs/tarfs/tarfs_subr.c
@@ -171,6 +171,8 @@
 
 	TARFS_DPF(ALLOC, "%s(%.*s)\n", __func__, (int)namelen, name);
 
+	if (parent != NULL && parent->type != VDIR)
+		return (ENOTDIR);
 	tnp = malloc(sizeof(struct tarfs_node), M_TARFSNODE, M_WAITOK | M_ZERO);
 	mtx_init(&tnp->lock, "tarfs node lock", NULL, MTX_DEF);
 	tnp->gen = arc4random();
@@ -233,7 +235,6 @@
 		panic("%s: type %d not allowed", __func__, type);
 	}
 	if (parent != NULL) {
-		MPASS(parent->type == VDIR);
 		TARFS_NODE_LOCK(parent);
 		TAILQ_INSERT_TAIL(&parent->dir.dirhead, tnp, dirents);
 		parent->size += sizeof(struct tarfs_node);
diff --git a/sys/fs/tarfs/tarfs_vfsops.c b/sys/fs/tarfs/tarfs_vfsops.c
--- a/sys/fs/tarfs/tarfs_vfsops.c
+++ b/sys/fs/tarfs/tarfs_vfsops.c
@@ -697,6 +697,12 @@
 		error = EINVAL;
 		goto bad;
 	}
+	if (parent->type != VDIR) {
+		TARFS_DPF(ALLOC, "%s: parent of %.*s is not a directory\n", __func__,
+		    (int)namelen, name);
+		error = EINVAL;
+		goto bad;
+	}
 	switch (hdrp->typeflag[0]) {
 	case TAR_TYPE_DIRECTORY:
 		error = tarfs_alloc_node(tmp, namep, sep - namep, VDIR,
diff --git a/tests/sys/fs/tarfs/tarfs_test.sh b/tests/sys/fs/tarfs/tarfs_test.sh
--- a/tests/sys/fs/tarfs/tarfs_test.sh
+++ b/tests/sys/fs/tarfs/tarfs_test.sh
@@ -33,10 +33,11 @@
 sum=4da2143234486307bb44eaa610375301781a577d1172f362b88bb4b1643dee62
 
 atf_test_case tarfs_test
-tarfs_test_head() {
+tarfs_basic_head() {
+	atf_set "descr" "Basic function test"
 	atf_set "require.user" "root"
 }
-tarfs_test_body() {
+tarfs_basic_body() {
 	mkdir "${mnt}"
 	"${mktar}" tarfs_test.tar.zst
 	atf_check mount -rt tarfs tarfs_test.tar.zst "${mnt}"
@@ -45,10 +46,32 @@
 	atf_check_equal "$(stat -f%d,%i "${mnt}"/sparse_file)" "$(stat -L -f%d,%i "${mnt}"/long_link)"
 	atf_check_equal "$(sha256 -q "${mnt}"/sparse_file)" ${sum}
 }
-tarfs_test_cleanup() {
+tarfs_basic_cleanup() {
+	umount "${mnt}"
+}
+
+atf_test_case tarfs_notdir
+tarfs_notdir_head() {
+	atf_set "descr" "Regression test for PR 269519"
+	atf_set "require.user" "root"
+}
+tarfs_notdir_body() {
+	mkdir "${mnt}"
+	mkdir t
+	echo "hello" >t/d
+	tar cf tarfs_notdir.tar t
+	rm t/d
+	mkdir t/d
+	echo "world" >t/d/b
+	tar rf tarfs_notdir.tar t
+	atf_check -s not-exit:0 -e match:"Invalid" \
+	    mount -rt tarfs tarfs_notdir.tar "${mnt}"
+}
+tarfs_notdir_cleanup() {
 	umount "${mnt}"
 }
 
 atf_init_test_cases() {
-	atf_add_test_case tarfs_test
+	atf_add_test_case tarfs_basic
+	atf_add_test_case tarfs_notdir
 }