| 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-2025-37854: drm/amdkfd: Fix mode1 reset crash issue |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/amdkfd: Fix mode1 reset crash issue |
| |
| If HW scheduler hangs and mode1 reset is used to recover GPU, KFD signal |
| user space to abort the processes. After process abort exit, user queues |
| still use the GPU to access system memory before h/w is reset while KFD |
| cleanup worker free system memory and free VRAM. |
| |
| There is use-after-free race bug that KFD allocate and reuse the freed |
| system memory, and user queue write to the same system memory to corrupt |
| the data structure and cause driver crash. |
| |
| To fix this race, KFD cleanup worker terminate user queues, then flush |
| reset_domain wq to wait for any GPU ongoing reset complete, and then |
| free outstanding BOs. |
| |
| The Linux kernel CVE team has assigned CVE-2025-37854 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 6.1.135 with commit 57c9dabda80ac167de8cd71231baae37cc2f442d |
| Fixed in 6.6.88 with commit 89af6b39f028c130d4362f57042927f005423e6a |
| Fixed in 6.12.24 with commit ffd37d7d44d7e0b6e769d4fe6590e327f8cc3951 |
| Fixed in 6.13.12 with commit 6f30a847432cae84c7428e9b684b3e3fa49b2391 |
| Fixed in 6.14.3 with commit 9c4bcdf4068aae3e17e31c144300be405cfa03ff |
| Fixed in 6.15 with commit f0b4440cdc1807bb6ec3dce0d6de81170803569b |
| |
| 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-2025-37854 |
| 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/amdkfd/kfd_process.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/57c9dabda80ac167de8cd71231baae37cc2f442d |
| https://git.kernel.org/stable/c/89af6b39f028c130d4362f57042927f005423e6a |
| https://git.kernel.org/stable/c/ffd37d7d44d7e0b6e769d4fe6590e327f8cc3951 |
| https://git.kernel.org/stable/c/6f30a847432cae84c7428e9b684b3e3fa49b2391 |
| https://git.kernel.org/stable/c/9c4bcdf4068aae3e17e31c144300be405cfa03ff |
| https://git.kernel.org/stable/c/f0b4440cdc1807bb6ec3dce0d6de81170803569b |
