| 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-2022-49682: xtensa: Fix refcount leak bug in time.c |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| xtensa: Fix refcount leak bug in time.c |
| |
| In calibrate_ccount(), of_find_compatible_node() will return a node |
| pointer with refcount incremented. We should use of_node_put() when |
| it is not used anymore. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49682 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 4.9.321 with commit 3e5eb904d9ba657308fc75a5de434b0e58dcb8d7 |
| Fixed in 4.14.286 with commit 7de4502af68f4f3932f450157f5483eb7b33cb74 |
| Fixed in 4.19.250 with commit f1eaf4ba5372ad111f687a80c67e270708e14c23 |
| Fixed in 5.4.202 with commit e5234a9d64a976abd134a14710dcd5188158a7c5 |
| Fixed in 5.10.127 with commit af0ff2da01521144bc11194f4c26485d7c9cee73 |
| Fixed in 5.15.51 with commit 0dcc1dd8a5dd9240639f1051dfaa2dffc9fbbde5 |
| Fixed in 5.18.8 with commit 0e403a383c14b63c86bd9df085b7e573e9caee64 |
| Fixed in 5.19 with commit a0117dc956429f2ede17b323046e1968d1849150 |
| |
| 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-2022-49682 |
| 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/xtensa/kernel/time.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/3e5eb904d9ba657308fc75a5de434b0e58dcb8d7 |
| https://git.kernel.org/stable/c/7de4502af68f4f3932f450157f5483eb7b33cb74 |
| https://git.kernel.org/stable/c/f1eaf4ba5372ad111f687a80c67e270708e14c23 |
| https://git.kernel.org/stable/c/e5234a9d64a976abd134a14710dcd5188158a7c5 |
| https://git.kernel.org/stable/c/af0ff2da01521144bc11194f4c26485d7c9cee73 |
| https://git.kernel.org/stable/c/0dcc1dd8a5dd9240639f1051dfaa2dffc9fbbde5 |
| https://git.kernel.org/stable/c/0e403a383c14b63c86bd9df085b7e573e9caee64 |
| https://git.kernel.org/stable/c/a0117dc956429f2ede17b323046e1968d1849150 |
