| 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-2023-52753: drm/amd/display: Avoid NULL dereference of timing generator |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/amd/display: Avoid NULL dereference of timing generator |
| |
| [Why & How] |
| Check whether assigned timing generator is NULL or not before |
| accessing its funcs to prevent NULL dereference. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52753 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 4.19.300 with commit 09909f515032fa80b921fd3118efe66b185d10fd |
| Fixed in 5.4.262 with commit eac3e4760aa12159f7f5475d55a67b7933abc195 |
| Fixed in 5.10.202 with commit 79b6a90f4f2433312154cd68452b0ba501fa74db |
| Fixed in 5.15.140 with commit 4e497f1acd99075b13605b2e7fa0cba721a2cfd9 |
| Fixed in 6.1.64 with commit 8a06894666e0b462c9316b26ab615cefdd0d676c |
| Fixed in 6.5.13 with commit 6d8653b1a7a8dc938b566ae8c4f373b36e792c68 |
| Fixed in 6.6.3 with commit df8bc953eed72371e43ca407bd063507f760cf89 |
| Fixed in 6.7 with commit b1904ed480cee3f9f4036ea0e36d139cb5fee2d6 |
| |
| 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-2023-52753 |
| 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_stream.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/09909f515032fa80b921fd3118efe66b185d10fd |
| https://git.kernel.org/stable/c/eac3e4760aa12159f7f5475d55a67b7933abc195 |
| https://git.kernel.org/stable/c/79b6a90f4f2433312154cd68452b0ba501fa74db |
| https://git.kernel.org/stable/c/4e497f1acd99075b13605b2e7fa0cba721a2cfd9 |
| https://git.kernel.org/stable/c/8a06894666e0b462c9316b26ab615cefdd0d676c |
| https://git.kernel.org/stable/c/6d8653b1a7a8dc938b566ae8c4f373b36e792c68 |
| https://git.kernel.org/stable/c/df8bc953eed72371e43ca407bd063507f760cf89 |
| https://git.kernel.org/stable/c/b1904ed480cee3f9f4036ea0e36d139cb5fee2d6 |
