| From bippy-1.2.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2023-52673: drm/amd/display: Fix a debugfs null pointer error |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/amd/display: Fix a debugfs null pointer error |
| |
| [WHY & HOW] |
| Check whether get_subvp_en() callback exists before calling it. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52673 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.7 with commit 670da29faf5ff160043a1f02e6ac2ed8345b5d7e and fixed in 6.7.3 with commit 43235db21fc23559f50a62f8f273002eeb506f5a |
| Issue introduced in 6.7 with commit 670da29faf5ff160043a1f02e6ac2ed8345b5d7e and fixed in 6.8 with commit efb91fea652a42fcc037d2a9ef4ecd1ffc5ff4b7 |
| |
| 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-2023-52673 |
| 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/amdgpu_dm/amdgpu_dm_debugfs.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/43235db21fc23559f50a62f8f273002eeb506f5a |
| https://git.kernel.org/stable/c/efb91fea652a42fcc037d2a9ef4ecd1ffc5ff4b7 |
