| 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-2022-49346: net: dsa: lantiq_gswip: Fix refcount leak in gswip_gphy_fw_list |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| net: dsa: lantiq_gswip: Fix refcount leak in gswip_gphy_fw_list |
| |
| Every iteration of for_each_available_child_of_node() decrements |
| the reference count of the previous node. |
| when breaking early from a for_each_available_child_of_node() loop, |
| we need to explicitly call of_node_put() on the gphy_fw_np. |
| Add missing of_node_put() to avoid refcount leak. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49346 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.20 with commit 14fceff4771e51b23b4485b575cf9e5b3414b89b and fixed in 5.4.198 with commit 7c8df6fad43d9d5d77f281f794b2a93cd02fd1a9 |
| Issue introduced in 4.20 with commit 14fceff4771e51b23b4485b575cf9e5b3414b89b and fixed in 5.10.122 with commit c2ae49a113a5344232f1ebb93bcf18bbd11e9c39 |
| Issue introduced in 4.20 with commit 14fceff4771e51b23b4485b575cf9e5b3414b89b and fixed in 5.15.47 with commit 54d6802c4d83fa8de7696cfec06f475d5fd92d27 |
| Issue introduced in 4.20 with commit 14fceff4771e51b23b4485b575cf9e5b3414b89b and fixed in 5.17.15 with commit 32cd78c5610f02a929f63cac985e73692d05f33e |
| Issue introduced in 4.20 with commit 14fceff4771e51b23b4485b575cf9e5b3414b89b and fixed in 5.18.4 with commit 2e007ac6fa7c9c94ad84da075c5c504afad690a0 |
| Issue introduced in 4.20 with commit 14fceff4771e51b23b4485b575cf9e5b3414b89b and fixed in 5.19 with commit 0737e018a05e2aa352828c52bdeed3b02cff2930 |
| |
| 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-2022-49346 |
| 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/dsa/lantiq_gswip.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/7c8df6fad43d9d5d77f281f794b2a93cd02fd1a9 |
| https://git.kernel.org/stable/c/c2ae49a113a5344232f1ebb93bcf18bbd11e9c39 |
| https://git.kernel.org/stable/c/54d6802c4d83fa8de7696cfec06f475d5fd92d27 |
| https://git.kernel.org/stable/c/32cd78c5610f02a929f63cac985e73692d05f33e |
| https://git.kernel.org/stable/c/2e007ac6fa7c9c94ad84da075c5c504afad690a0 |
| https://git.kernel.org/stable/c/0737e018a05e2aa352828c52bdeed3b02cff2930 |
