| 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-2024-35817: drm/amdgpu: amdgpu_ttm_gart_bind set gtt bound flag |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/amdgpu: amdgpu_ttm_gart_bind set gtt bound flag |
| |
| Otherwise after the GTT bo is released, the GTT and gart space is freed |
| but amdgpu_ttm_backend_unbind will not clear the gart page table entry |
| and leave valid mapping entry pointing to the stale system page. Then |
| if GPU access the gart address mistakely, it will read undefined value |
| instead page fault, harder to debug and reproduce the real issue. |
| |
| The Linux kernel CVE team has assigned CVE-2024-35817 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.10 with commit 0b988ca1c7c4c73983b4ea96ef7c2af2263c87eb and fixed in 5.15.154 with commit 5d5f1a7f3b1039925f79c7894f153c2a905201fb |
| Issue introduced in 5.10 with commit 0b988ca1c7c4c73983b4ea96ef7c2af2263c87eb and fixed in 6.1.84 with commit 589c414138a1bed98e652c905937d8f790804efe |
| Issue introduced in 5.10 with commit 0b988ca1c7c4c73983b4ea96ef7c2af2263c87eb and fixed in 6.6.24 with commit 6fcd12cb90888ef2d8af8d4c04e913252eee4ef3 |
| Issue introduced in 5.10 with commit 0b988ca1c7c4c73983b4ea96ef7c2af2263c87eb and fixed in 6.7.12 with commit e8d27caef2c829a306e1f762fb95f06e8ec676f6 |
| Issue introduced in 5.10 with commit 0b988ca1c7c4c73983b4ea96ef7c2af2263c87eb and fixed in 6.8.3 with commit 5cdce3dda3b3dacde902f63a8ee72c2b7f91912d |
| Issue introduced in 5.10 with commit 0b988ca1c7c4c73983b4ea96ef7c2af2263c87eb and fixed in 6.9 with commit 6c6064cbe58b43533e3451ad6a8ba9736c109ac3 |
| |
| 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-2024-35817 |
| 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/amdgpu/amdgpu_ttm.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/5d5f1a7f3b1039925f79c7894f153c2a905201fb |
| https://git.kernel.org/stable/c/589c414138a1bed98e652c905937d8f790804efe |
| https://git.kernel.org/stable/c/6fcd12cb90888ef2d8af8d4c04e913252eee4ef3 |
| https://git.kernel.org/stable/c/e8d27caef2c829a306e1f762fb95f06e8ec676f6 |
| https://git.kernel.org/stable/c/5cdce3dda3b3dacde902f63a8ee72c2b7f91912d |
| https://git.kernel.org/stable/c/6c6064cbe58b43533e3451ad6a8ba9736c109ac3 |
