From e37406aa5401c1638c610e91a90f7d4349cd2762 Mon Sep 17 00:00:00 2001
From: Denis Efremov <efremov@linux.com>
Date: Thu, 15 Feb 2024 16:05:44 +0400
Subject: [PATCH] Add CVE-2023-4389

Signed-off-by: Denis Efremov <efremov@linux.com>
---
 cvehound/cve/CVE-2023-4389.cocci | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 cvehound/cve/CVE-2023-4389.cocci

diff --git a/cvehound/cve/CVE-2023-4389.cocci b/cvehound/cve/CVE-2023-4389.cocci
new file mode 100644
index 0000000..888aa07
--- /dev/null
+++ b/cvehound/cve/CVE-2023-4389.cocci
@@ -0,0 +1,27 @@
+/// Files: fs/btrfs/disk-io.c
+/// Fix: 168a2f776b9762f4021421008512dd7ab7474df1
+/// Fixes: bc44d7c4b2b179c4b74fba208b9908e2ecbc1b4d
+
+virtual detect
+
+@err@
+identifier fs_info, root, ret;
+position p;
+@@
+
+\(btrfs_get_root_ref\|btrfs_get_fs_root\)(struct btrfs_fs_info *fs_info, ...)
+{
+	...
+*	ret = btrfs_insert_fs_root(fs_info, root);
+	if (ret) {
+*		\(btrfs_put_root@p\|btrfs_put_fs_root@p\)(root);
+		...
+	}
+	...
+}
+
+@script:python depends on detect@
+p << err.p;
+@@
+
+coccilib.report.print_report(p[0], 'ERROR: CVE-2023-4389')