| 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-2024-57805: ASoC: SOF: Intel: hda-dai: Do not release the link DMA on STOP |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ASoC: SOF: Intel: hda-dai: Do not release the link DMA on STOP |
| |
| The linkDMA should not be released on stop trigger since a stream re-start |
| might happen without closing of the stream. This leaves a short time for |
| other streams to 'steal' the linkDMA since it has been released. |
| |
| This issue is not easy to reproduce under normal conditions as usually |
| after stop the stream is closed, or the same stream is restarted, but if |
| another stream got in between the stop and start, like this: |
| aplay -Dhw:0,3 -c2 -r48000 -fS32_LE /dev/zero -d 120 |
| CTRL+z |
| aplay -Dhw:0,0 -c2 -r48000 -fS32_LE /dev/zero -d 120 |
| |
| then the link DMA channels will be mixed up, resulting firmware error or |
| crash. |
| |
| The Linux kernel CVE team has assigned CVE-2024-57805 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.12 with commit ab5593793e9088abcddce30ba8e376e31b7285fd and fixed in 6.12.8 with commit 909ecf15cb70f78cdb5c930f58df01db039a0ff8 |
| Issue introduced in 6.12 with commit ab5593793e9088abcddce30ba8e376e31b7285fd and fixed in 6.13 with commit e8d0ba147d901022bcb69da8d8fd817f84e9f3ca |
| Issue introduced in 6.11.6 with commit ec0c7735dd014e54e55bc3bf4ed2e73d56bb00b3 |
| |
| 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-2024-57805 |
| 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/sof/intel/hda-dai.c |
| sound/soc/sof/intel/hda.h |
| |
| |
| 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/909ecf15cb70f78cdb5c930f58df01db039a0ff8 |
| https://git.kernel.org/stable/c/e8d0ba147d901022bcb69da8d8fd817f84e9f3ca |
