| 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-2023-52812: drm/amd: check num of link levels when update pcie param |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/amd: check num of link levels when update pcie param |
| |
| In SR-IOV environment, the value of pcie_table->num_of_link_levels will |
| be 0, and num_of_levels - 1 will cause array index out of bounds |
| |
| The Linux kernel CVE team has assigned CVE-2023-52812 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 6.1.119 with commit 2f2d48b6247ae3001f83c98730b3cce475cb2927 |
| Fixed in 6.5.13 with commit 5b4574b663d0a1a0a62d5232429b7db9ae6d0670 |
| Fixed in 6.6.3 with commit 09f617219fe9ccd8d7b65dc3e879b5889f663b5a |
| Fixed in 6.7 with commit 406e8845356d18bdf3d3a23b347faf67706472ec |
| |
| 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-2023-52812 |
| 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/pm/swsmu/smu13/smu_v13_0.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/2f2d48b6247ae3001f83c98730b3cce475cb2927 |
| https://git.kernel.org/stable/c/5b4574b663d0a1a0a62d5232429b7db9ae6d0670 |
| https://git.kernel.org/stable/c/09f617219fe9ccd8d7b65dc3e879b5889f663b5a |
| https://git.kernel.org/stable/c/406e8845356d18bdf3d3a23b347faf67706472ec |
