| 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-2023-53001: drm/drm_vma_manager: Add drm_vma_node_allow_once() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/drm_vma_manager: Add drm_vma_node_allow_once() |
| |
| Currently there is no easy way for a drm driver to safely check and allow |
| drm_vma_offset_node for a drm file just once. Allow drm drivers to call |
| non-refcounted version of drm_vma_node_allow() so that a driver doesn't |
| need to keep track of each drm_vma_node_allow() to call subsequent |
| drm_vma_node_revoke() to prevent memory leak. |
| |
| The Linux kernel CVE team has assigned CVE-2023-53001 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 6.1.9 with commit 67444f8ca31cdaf45e0b761241ad49b1ae04bcf9 |
| Fixed in 6.2 with commit 899d3a3c19ac0e5da013ce34833dccb97d19b5e4 |
| |
| 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-2023-53001 |
| 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/drm_vma_manager.c |
| include/drm/drm_vma_manager.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/67444f8ca31cdaf45e0b761241ad49b1ae04bcf9 |
| https://git.kernel.org/stable/c/899d3a3c19ac0e5da013ce34833dccb97d19b5e4 |
