| 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-2024-35842: ASoC: mediatek: sof-common: Add NULL check for normal_link string |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ASoC: mediatek: sof-common: Add NULL check for normal_link string |
| |
| It's not granted that all entries of struct sof_conn_stream declare |
| a `normal_link` (a non-SOF, direct link) string, and this is the case |
| for SoCs that support only SOF paths (hence do not support both direct |
| and SOF usecases). |
| |
| For example, in the case of MT8188 there is no normal_link string in |
| any of the sof_conn_stream entries and there will be more drivers |
| doing that in the future. |
| |
| To avoid possible NULL pointer KPs, add a NULL check for `normal_link`. |
| |
| The Linux kernel CVE team has assigned CVE-2024-35842 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.0 with commit 0caf1120c58395108344d5df4e09359b67e95094 and fixed in 6.1.75 with commit cad471227a37c0c7c080bfc9ed01b53750e82afe |
| Issue introduced in 6.0 with commit 0caf1120c58395108344d5df4e09359b67e95094 and fixed in 6.6.14 with commit b1d3db6740d0997ffc6e5a0d96ef7cbd62b35fdd |
| Issue introduced in 6.0 with commit 0caf1120c58395108344d5df4e09359b67e95094 and fixed in 6.7.2 with commit cde6ca5872bf67744dffa875a7cb521ab007b7ef |
| Issue introduced in 6.0 with commit 0caf1120c58395108344d5df4e09359b67e95094 and fixed in 6.8 with commit e3b3ec967a7d93b9010a5af9a2394c8b5c8f31ed |
| |
| 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-2024-35842 |
| 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: |
| sound/soc/mediatek/common/mtk-dsp-sof-common.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/cad471227a37c0c7c080bfc9ed01b53750e82afe |
| https://git.kernel.org/stable/c/b1d3db6740d0997ffc6e5a0d96ef7cbd62b35fdd |
| https://git.kernel.org/stable/c/cde6ca5872bf67744dffa875a7cb521ab007b7ef |
| https://git.kernel.org/stable/c/e3b3ec967a7d93b9010a5af9a2394c8b5c8f31ed |
