| 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-2024-49971: drm/amd/display: Increase array size of dummy_boolean |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/amd/display: Increase array size of dummy_boolean |
| |
| [WHY] |
| dml2_core_shared_mode_support and dml_core_mode_support access the third |
| element of dummy_boolean, i.e. hw_debug5 = &s->dummy_boolean[2], when |
| dummy_boolean has size of 2. Any assignment to hw_debug5 causes an |
| OVERRUN. |
| |
| [HOW] |
| Increase dummy_boolean's array size to 3. |
| |
| This fixes 2 OVERRUN issues reported by Coverity. |
| |
| The Linux kernel CVE team has assigned CVE-2024-49971 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.11 with commit 70839da6360500a82e4d5f78499284474cbed7c1 and fixed in 6.11.3 with commit e9e48b7bb9cf3b78f0305ef0144aaf61da0a83d8 |
| Issue introduced in 6.11 with commit 70839da6360500a82e4d5f78499284474cbed7c1 and fixed in 6.12 with commit 6d64d39486197083497a01b39e23f2f8474b35d3 |
| |
| 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-2024-49971 |
| 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/dml2/dml21/src/dml2_core/dml2_core_shared_types.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/e9e48b7bb9cf3b78f0305ef0144aaf61da0a83d8 |
| https://git.kernel.org/stable/c/6d64d39486197083497a01b39e23f2f8474b35d3 |
