iso9660: Add Rock Ridge regression test

The Rock Ridge rr_move functionality for paths with a depth larger than 8
has a few bugs in it. For one, it might loop over the same entries over
and over. And second, rr_move/ directory entries are not verified to be
unique. Both issues can lead to NULL pointer dereferences.

Add a test case which highlights the NULL pointer dereference.

Based on issue #2936.

diff --git a/Makefile.am b/Makefile.am
index 2ea6c3ad66ee12012a184ddbabc5408be1b8a85e..9d9a637a9797ec41a86ceeea2b89150aa63d3102 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -666,6 +666,7 @@ libarchive_test_SOURCES= \
        libarchive/test/test_write_format_iso9660_empty.c \
        libarchive/test/test_write_format_iso9660_filename.c \
        libarchive/test/test_write_format_iso9660_joliet_id.c \
+       libarchive/test/test_write_format_iso9660_rockridge.c \
        libarchive/test/test_write_format_iso9660_zisofs.c \
        libarchive/test/test_write_format_mtree.c \
        libarchive/test/test_write_format_mtree_absolute.c \

diff --git a/libarchive/test/CMakeLists.txt b/libarchive/test/CMakeLists.txt
index 4f81d8800e22cb2e6456a41f6bf68569a2ed922d..6cd95ce00dfdee4136b12d81dcb369f3fc12b46b 100644 (file)
--- a/libarchive/test/CMakeLists.txt
+++ b/libarchive/test/CMakeLists.txt
@@ -297,6 +297,7 @@ IF(ENABLE_TEST)
     test_write_format_iso9660_empty.c
     test_write_format_iso9660_filename.c
     test_write_format_iso9660_joliet_id.c
+    test_write_format_iso9660_rockridge.c
     test_write_format_iso9660_zisofs.c
     test_write_format_iso9660_bugs.c
     test_write_format_mtree.c

diff --git a/libarchive/test/test_write_format_iso9660_rockridge.c b/libarchive/test/test_write_format_iso9660_rockridge.c
new file mode 100644 (file)
index 0000000..db07231
--- /dev/null
+++ b/libarchive/test/test_write_format_iso9660_rockridge.c
@@ -0,0 +1,66 @@
+/*-
+ * Copyright (c) 2026 Tobias Stoeckmann
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "test.h"
+
+DEFINE_TEST(test_write_format_iso9660_rockridge)
+{
+       struct archive *a;
+       struct archive_entry *ae;
+       unsigned char *buff;
+       size_t buffsize = 128 * 2048;
+       size_t used;
+
+       buff = malloc(buffsize);
+       assert(buff != NULL);
+       if (buff == NULL)
+               return;
+
+       /* ISO9660 format: Create a new archive in memory. */
+       assert((a = archive_write_new()) != NULL);
+       assertA(0 == archive_write_set_format_iso9660(a));
+       assertA(0 == archive_write_add_filter_none(a));
+       assertA(0 == archive_write_set_bytes_per_block(a, 1));
+       assertA(0 == archive_write_set_bytes_in_last_block(a, 1));
+       assertA(0 == archive_write_open_memory(a, buff, buffsize, &used));
+
+       /* Add a file with a depth of 16. */
+       assert((ae = archive_entry_new()) != NULL);
+       archive_entry_set_atime(ae, 2, 0);
+       archive_entry_set_ctime(ae, 4, 0);
+       archive_entry_set_mtime(ae, 5, 0);
+       archive_entry_copy_pathname(ae, "1/2/3/4/5/6/7/8/9/A/B/C/D/E/F");
+       archive_entry_set_mode(ae, S_IFDIR | 0755);
+
+       assertEqualIntA(a, ARCHIVE_OK, archive_write_header(a, ae));
+       archive_entry_free(ae);
+
+       /* XXX - Known to fail currently. */
+       assertEqualIntA(a, ARCHIVE_FATAL, archive_write_close(a));
+
+       /* Close out the archive. */
+       assertEqualInt(ARCHIVE_OK, archive_write_free(a));
+
+       free(buff);
+}