| From bippy-7c5fe7eed585 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-2024-46813: drm/amd/display: Check link_index before accessing dc->links[] |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/amd/display: Check link_index before accessing dc->links[] |
| |
| [WHY & HOW] |
| dc->links[] has max size of MAX_LINKS and NULL is return when trying to |
| access with out-of-bound index. |
| |
| This fixes 3 OVERRUN and 1 RESOURCE_LEAK issues reported by Coverity. |
| |
| The Linux kernel CVE team has assigned CVE-2024-46813 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 6.6.87 with commit 032c5407a608ac3b2a98bf4fbda27d12c20c5887 |
| Fixed in 6.10.9 with commit ac04759b4a002969cf0f1384f1b8bb2001cfa782 |
| Fixed in 6.11 with commit 8aa2864044b9d13e95fe224f32e808afbf79ecdf |
| |
| 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-2024-46813 |
| 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: |
| drivers/gpu/drm/amd/display/dc/core/dc_link_exports.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/032c5407a608ac3b2a98bf4fbda27d12c20c5887 |
| https://git.kernel.org/stable/c/ac04759b4a002969cf0f1384f1b8bb2001cfa782 |
| https://git.kernel.org/stable/c/8aa2864044b9d13e95fe224f32e808afbf79ecdf |
