| 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-2022-49615: ASoC: rt711-sdca: fix kernel NULL pointer dereference when IO error |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ASoC: rt711-sdca: fix kernel NULL pointer dereference when IO error |
| |
| The initial settings will be written before the codec probe function. |
| But, the rt711->component doesn't be assigned yet. |
| If IO error happened during initial settings operations, it will cause the kernel panic. |
| This patch changed component->dev to slave->dev to fix this issue. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49615 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.13 with commit 7ad4d237e7c4a5dcc71cf438f646744b4484f1da and fixed in 5.15.56 with commit 269be8b2907378adf72d7347cfa43ef230351a06 |
| Issue introduced in 5.13 with commit 7ad4d237e7c4a5dcc71cf438f646744b4484f1da and fixed in 5.18.13 with commit 7bb71133cae88d3003a3490b97864af76533072b |
| Issue introduced in 5.13 with commit 7ad4d237e7c4a5dcc71cf438f646744b4484f1da and fixed in 5.19 with commit 1df793d479bef546569fc2e409ff8bb3f0fb8e99 |
| |
| 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-2022-49615 |
| 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/codecs/rt711-sdca.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/269be8b2907378adf72d7347cfa43ef230351a06 |
| https://git.kernel.org/stable/c/7bb71133cae88d3003a3490b97864af76533072b |
| https://git.kernel.org/stable/c/1df793d479bef546569fc2e409ff8bb3f0fb8e99 |
