| 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-2024-27400: drm/amdgpu: once more fix the call oder in amdgpu_ttm_move() v2 |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/amdgpu: once more fix the call oder in amdgpu_ttm_move() v2 |
| |
| This reverts drm/amdgpu: fix ftrace event amdgpu_bo_move always move |
| on same heap. The basic problem here is that after the move the old |
| location is simply not available any more. |
| |
| Some fixes were suggested, but essentially we should call the move |
| notification before actually moving things because only this way we have |
| the correct order for DMA-buf and VM move notifications as well. |
| |
| Also rework the statistic handling so that we don't update the eviction |
| counter before the move. |
| |
| v2: add missing NULL check |
| |
| The Linux kernel CVE team has assigned CVE-2024-27400 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.1.77 with commit d443fb67ca5ab04760449d21ddea66f6728e5b00 and fixed in 6.1.91 with commit 5c25b169f9a0b34ee410891a96bc9d7b9ed6f9be |
| Issue introduced in 6.6.16 with commit e7a0ee45c653784edda5e36bae6ae3c75fd5e7a8 and fixed in 6.6.31 with commit 0c7ed3ed35eec9138b88d42217b5a6b9a62bda4d |
| Issue introduced in 6.8 with commit 94aeb4117343d072e3a35b9595bcbfc0058ee724 and fixed in 6.8.10 with commit 9a4f6e138720b6e9adf7b82a71d0292f3f276480 |
| Issue introduced in 6.8 with commit 94aeb4117343d072e3a35b9595bcbfc0058ee724 and fixed in 6.9 with commit d3a9331a6591e9df64791e076f6591f440af51c3 |
| Issue introduced in 5.15.149 with commit 77bcd4ab446fa35ad135b1c7404415ed9a129296 |
| Issue introduced in 6.7.4 with commit 1cd2b612474c07b17a21e27f2eed8dff75cb5057 |
| |
| 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-2024-27400 |
| 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_object.c |
| drivers/gpu/drm/amd/amdgpu/amdgpu_object.h |
| 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/5c25b169f9a0b34ee410891a96bc9d7b9ed6f9be |
| https://git.kernel.org/stable/c/0c7ed3ed35eec9138b88d42217b5a6b9a62bda4d |
| https://git.kernel.org/stable/c/9a4f6e138720b6e9adf7b82a71d0292f3f276480 |
| https://git.kernel.org/stable/c/d3a9331a6591e9df64791e076f6591f440af51c3 |
