From bippy-c9c4e1df01b2 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman To: Reply-to: , Subject: CVE-2022-48859: net: marvell: prestera: Add missing of_node_put() in prestera_switch_set_base_mac_addr Description =========== In the Linux kernel, the following vulnerability has been resolved: net: marvell: prestera: Add missing of_node_put() in prestera_switch_set_base_mac_addr This node pointer is returned by of_find_compatible_node() with refcount incremented. Calling of_node_put() to aovid the refcount leak. The Linux kernel CVE team has assigned CVE-2022-48859 to this issue. Affected and fixed versions =========================== Issue introduced in 5.10 with commit 501ef3066c89 and fixed in 5.15.29 with commit b7c2fd1d1263 Issue introduced in 5.10 with commit 501ef3066c89 and fixed in 5.16.15 with commit 4cc66bf17220 Issue introduced in 5.10 with commit 501ef3066c89 and fixed in 5.17 with commit c9ffa3e2bc45 Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2022-48859 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: drivers/net/ethernet/marvell/prestera/prestera_main.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/b7c2fd1d126329340639adfb8dd2938fe4b65df7 https://git.kernel.org/stable/c/4cc66bf17220ff9631f9fa99b02a872e0ad5a08b https://git.kernel.org/stable/c/c9ffa3e2bc451816ce0295e40063514fabf2bd36