| 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-2024-41037: ASoC: SOF: Intel: hda: fix null deref on system suspend entry |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ASoC: SOF: Intel: hda: fix null deref on system suspend entry |
| |
| When system enters suspend with an active stream, SOF core |
| calls hw_params_upon_resume(). On Intel platforms with HDA DMA used |
| to manage the link DMA, this leads to call chain of |
| |
| hda_dsp_set_hw_params_upon_resume() |
| -> hda_dsp_dais_suspend() |
| -> hda_dai_suspend() |
| -> hda_ipc4_post_trigger() |
| |
| A bug is hit in hda_dai_suspend() as hda_link_dma_cleanup() is run first, |
| which clears hext_stream->link_substream, and then hda_ipc4_post_trigger() |
| is called with a NULL snd_pcm_substream pointer. |
| |
| The Linux kernel CVE team has assigned CVE-2024-41037 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.4 with commit 2b009fa0823c1510700fd17a0780ddd06a460fb4 and fixed in 6.6.41 with commit 8246bbf818ed7b8d5afc92b951e6d562b45c2450 |
| Issue introduced in 6.4 with commit 2b009fa0823c1510700fd17a0780ddd06a460fb4 and fixed in 6.9.10 with commit 993af0f2d9f24e3c18a445ae22b34190d1fcad61 |
| Issue introduced in 6.4 with commit 2b009fa0823c1510700fd17a0780ddd06a460fb4 and fixed in 6.10 with commit 9065693dcc13f287b9e4991f43aee70cf5538fdd |
| |
| 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-2024-41037 |
| 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 |
| |
| |
| 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/8246bbf818ed7b8d5afc92b951e6d562b45c2450 |
| https://git.kernel.org/stable/c/993af0f2d9f24e3c18a445ae22b34190d1fcad61 |
| https://git.kernel.org/stable/c/9065693dcc13f287b9e4991f43aee70cf5538fdd |
