| 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-2024-57922: drm/amd/display: Add check for granularity in dml ceil/floor helpers |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/amd/display: Add check for granularity in dml ceil/floor helpers |
| |
| [Why] |
| Wrapper functions for dcn_bw_ceil2() and dcn_bw_floor2() |
| should check for granularity is non zero to avoid assert and |
| divide-by-zero error in dcn_bw_ functions. |
| |
| [How] |
| Add check for granularity 0. |
| |
| (cherry picked from commit f6e09701c3eb2ccb8cb0518e0b67f1c69742a4ec) |
| |
| The Linux kernel CVE team has assigned CVE-2024-57922 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 5.4.290 with commit 8a9315e6f7b2d94c65a1ba476481deddb20fc3ae |
| Fixed in 5.10.234 with commit 497471baf53bb8fd3cd1529d65d4d7f7b81f1917 |
| Fixed in 5.15.177 with commit 95793f9684e58d2aa56671b2d616b4f9f577a0a8 |
| Fixed in 6.1.125 with commit f3d1e4062ef251fa55ccfeca1e54a98b6818b3a1 |
| Fixed in 6.6.72 with commit ae9ab63a268be99a27a4720ca24f6be801744fee |
| Fixed in 6.12.10 with commit 4f0dd09ed3001725ffd8cdc2868e71df585392fe |
| Fixed in 6.13 with commit 0881fbc4fd62e00a2b8e102725f76d10351b2ea8 |
| |
| 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-2024-57922 |
| 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/dml/dml_inline_defs.h |
| |
| |
| 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/8a9315e6f7b2d94c65a1ba476481deddb20fc3ae |
| https://git.kernel.org/stable/c/497471baf53bb8fd3cd1529d65d4d7f7b81f1917 |
| https://git.kernel.org/stable/c/95793f9684e58d2aa56671b2d616b4f9f577a0a8 |
| https://git.kernel.org/stable/c/f3d1e4062ef251fa55ccfeca1e54a98b6818b3a1 |
| https://git.kernel.org/stable/c/ae9ab63a268be99a27a4720ca24f6be801744fee |
| https://git.kernel.org/stable/c/4f0dd09ed3001725ffd8cdc2868e71df585392fe |
| https://git.kernel.org/stable/c/0881fbc4fd62e00a2b8e102725f76d10351b2ea8 |
