| 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-2024-43818: ASoC: amd: Adjust error handling in case of absent codec device |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ASoC: amd: Adjust error handling in case of absent codec device |
| |
| acpi_get_first_physical_node() can return NULL in several cases (no such |
| device, ACPI table error, reference count drop to 0, etc). |
| Existing check just emit error message, but doesn't perform return. |
| Then this NULL pointer is passed to devm_acpi_dev_add_driver_gpios() |
| where it is dereferenced. |
| |
| Adjust this error handling by adding error code return. |
| |
| Found by Linux Verification Center (linuxtesting.org) with SVACE. |
| |
| The Linux kernel CVE team has assigned CVE-2024-43818 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.0 with commit 02527c3f2300100a25524c8c020d98c7957e485e and fixed in 6.1.103 with commit 1ba9856cf7f6492b47c1edf853137f320d583db5 |
| Issue introduced in 6.0 with commit 02527c3f2300100a25524c8c020d98c7957e485e and fixed in 6.6.44 with commit 99b642dac24f6d09ba3ebf1d690be8aefff86164 |
| Issue introduced in 6.0 with commit 02527c3f2300100a25524c8c020d98c7957e485e and fixed in 6.10.3 with commit b1173d64edd276c957b6d09e1f971c85b38f1519 |
| Issue introduced in 6.0 with commit 02527c3f2300100a25524c8c020d98c7957e485e and fixed in 6.11 with commit 5080808c3339de2220c602ab7c7fa23dc6c1a5a3 |
| |
| 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-2024-43818 |
| 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/amd/acp-es8336.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/1ba9856cf7f6492b47c1edf853137f320d583db5 |
| https://git.kernel.org/stable/c/99b642dac24f6d09ba3ebf1d690be8aefff86164 |
| https://git.kernel.org/stable/c/b1173d64edd276c957b6d09e1f971c85b38f1519 |
| https://git.kernel.org/stable/c/5080808c3339de2220c602ab7c7fa23dc6c1a5a3 |
