| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| 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 501ef3066c89d7f9045315e1be58749cf9e6814d and fixed in 5.15.29 with commit b7c2fd1d126329340639adfb8dd2938fe4b65df7 |
| Issue introduced in 5.10 with commit 501ef3066c89d7f9045315e1be58749cf9e6814d and fixed in 5.16.15 with commit 4cc66bf17220ff9631f9fa99b02a872e0ad5a08b |
| Issue introduced in 5.10 with commit 501ef3066c89d7f9045315e1be58749cf9e6814d and fixed in 5.17 with commit c9ffa3e2bc451816ce0295e40063514fabf2bd36 |
| |
| 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 |
