| 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-2022-49439: powerpc/fsl_rio: Fix refcount leak in fsl_rio_setup |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| powerpc/fsl_rio: Fix refcount leak in fsl_rio_setup |
| |
| of_parse_phandle() returns a node pointer with refcount |
| incremented, we should use of_node_put() on it when not need anymore. |
| Add missing of_node_put() to avoid refcount leak. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49439 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.3 with commit abc3aeae3aaa5c319d02f12649e17ea5929999aa and fixed in 4.14.283 with commit 51e25fbf20c9152d84a34b7afac15a41fe5c9116 |
| Issue introduced in 3.3 with commit abc3aeae3aaa5c319d02f12649e17ea5929999aa and fixed in 4.19.247 with commit 5b8aa2ba38c010f47c965dd9bb5a8561813ed649 |
| Issue introduced in 3.3 with commit abc3aeae3aaa5c319d02f12649e17ea5929999aa and fixed in 5.4.198 with commit bcb6c4c5eb4836a21411dfe8247bf9951eb6e7c3 |
| Issue introduced in 3.3 with commit abc3aeae3aaa5c319d02f12649e17ea5929999aa and fixed in 5.10.121 with commit 46fd994763cf6884b88a2da712af918f3ed54d7b |
| Issue introduced in 3.3 with commit abc3aeae3aaa5c319d02f12649e17ea5929999aa and fixed in 5.15.46 with commit 7b668a59ddfb32727e39b06fdf52b28e58c684e0 |
| Issue introduced in 3.3 with commit abc3aeae3aaa5c319d02f12649e17ea5929999aa and fixed in 5.17.14 with commit c70dd353d37158e06bf8d450d4b31a7091609924 |
| Issue introduced in 3.3 with commit abc3aeae3aaa5c319d02f12649e17ea5929999aa and fixed in 5.18.3 with commit 5607a77a365df8c0fd5ff43ac424812b95775527 |
| Issue introduced in 3.3 with commit abc3aeae3aaa5c319d02f12649e17ea5929999aa and fixed in 5.19 with commit fcee96924ba1596ca80a6770b2567ca546f9a482 |
| |
| 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-2022-49439 |
| 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: |
| arch/powerpc/sysdev/fsl_rio.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/51e25fbf20c9152d84a34b7afac15a41fe5c9116 |
| https://git.kernel.org/stable/c/5b8aa2ba38c010f47c965dd9bb5a8561813ed649 |
| https://git.kernel.org/stable/c/bcb6c4c5eb4836a21411dfe8247bf9951eb6e7c3 |
| https://git.kernel.org/stable/c/46fd994763cf6884b88a2da712af918f3ed54d7b |
| https://git.kernel.org/stable/c/7b668a59ddfb32727e39b06fdf52b28e58c684e0 |
| https://git.kernel.org/stable/c/c70dd353d37158e06bf8d450d4b31a7091609924 |
| https://git.kernel.org/stable/c/5607a77a365df8c0fd5ff43ac424812b95775527 |
| https://git.kernel.org/stable/c/fcee96924ba1596ca80a6770b2567ca546f9a482 |
