| 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-2024-53045: ASoC: dapm: fix bounds checker error in dapm_widget_list_create |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ASoC: dapm: fix bounds checker error in dapm_widget_list_create |
| |
| The widgets array in the snd_soc_dapm_widget_list has a __counted_by |
| attribute attached to it, which points to the num_widgets variable. This |
| attribute is used in bounds checking, and if it is not set before the |
| array is filled, then the bounds sanitizer will issue a warning or a |
| kernel panic if CONFIG_UBSAN_TRAP is set. |
| |
| This patch sets the size of the widgets list calculated with |
| list_for_each as the initial value for num_widgets as it is used for |
| allocating memory for the array. It is updated with the actual number of |
| added elements after the array is filled. |
| |
| The Linux kernel CVE team has assigned CVE-2024-53045 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.7 with commit 80e698e2df5ba2124bdeca37f1e589de58a4d514 and fixed in 6.11.7 with commit c549cb66e8de0ba1936fc97a59f0156741d3492a |
| Issue introduced in 6.7 with commit 80e698e2df5ba2124bdeca37f1e589de58a4d514 and fixed in 6.12 with commit 2ef9439f7a19fd3d43b288d38b1c6e55b668a4fe |
| |
| 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-2024-53045 |
| 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/soc-dapm.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/c549cb66e8de0ba1936fc97a59f0156741d3492a |
| https://git.kernel.org/stable/c/2ef9439f7a19fd3d43b288d38b1c6e55b668a4fe |
