| 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-2022-49538: ALSA: jack: Access input_dev under mutex |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ALSA: jack: Access input_dev under mutex |
| |
| It is possible when using ASoC that input_dev is unregistered while |
| calling snd_jack_report, which causes NULL pointer dereference. |
| In order to prevent this serialize access to input_dev using mutex lock. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49538 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 4.9.318 with commit 74bab3bcf422593c582e47130aa8eb41ebb2dc09 |
| Fixed in 4.14.283 with commit 8487a88136d54a1a4d3f26f1399685db648ab879 |
| Fixed in 4.19.247 with commit c093b62c40027c21d649c5534ad7aa3605a99b00 |
| Fixed in 5.4.198 with commit f68bed124c7699e23ffb4ce4fcc84671e9193cde |
| Fixed in 5.10.121 with commit e2b8681769f6e205382f026b907d28aa5ec9d59a |
| Fixed in 5.15.46 with commit 5cc6f623f4818c7d7e9e966a45ebf324901ca9c5 |
| Fixed in 5.17.14 with commit 9e6a73b0c0f2014eb89249fb1640c5a3d58221c4 |
| Fixed in 5.18.3 with commit 582aea6084cc59fec881204f026816d1219f2348 |
| Fixed in 5.19 with commit 1b6a6fc5280e97559287b61eade2d4b363e836f2 |
| |
| 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-2022-49538 |
| 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: |
| include/sound/jack.h |
| sound/core/jack.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/74bab3bcf422593c582e47130aa8eb41ebb2dc09 |
| https://git.kernel.org/stable/c/8487a88136d54a1a4d3f26f1399685db648ab879 |
| https://git.kernel.org/stable/c/c093b62c40027c21d649c5534ad7aa3605a99b00 |
| https://git.kernel.org/stable/c/f68bed124c7699e23ffb4ce4fcc84671e9193cde |
| https://git.kernel.org/stable/c/e2b8681769f6e205382f026b907d28aa5ec9d59a |
| https://git.kernel.org/stable/c/5cc6f623f4818c7d7e9e966a45ebf324901ca9c5 |
| https://git.kernel.org/stable/c/9e6a73b0c0f2014eb89249fb1640c5a3d58221c4 |
| https://git.kernel.org/stable/c/582aea6084cc59fec881204f026816d1219f2348 |
| https://git.kernel.org/stable/c/1b6a6fc5280e97559287b61eade2d4b363e836f2 |
