| 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-2024-36949: amd/amdkfd: sync all devices to wait all processes being evicted |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| amd/amdkfd: sync all devices to wait all processes being evicted |
| |
| If there are more than one device doing reset in parallel, the first |
| device will call kfd_suspend_all_processes() to evict all processes |
| on all devices, this call takes time to finish. other device will |
| start reset and recover without waiting. if the process has not been |
| evicted before doing recover, it will be restored, then caused page |
| fault. |
| |
| The Linux kernel CVE team has assigned CVE-2024-36949 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 6.6.31 with commit b6f6626528fe724b512c34f3fb5946c36a135f58 |
| Fixed in 6.8.10 with commit ed28ef3840bbf93a64376ea7814ce39f86352e14 |
| Fixed in 6.9 with commit d06af584be5a769d124b7302b32a033e9559761d |
| |
| 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-2024-36949 |
| 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_device.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/b6f6626528fe724b512c34f3fb5946c36a135f58 |
| https://git.kernel.org/stable/c/ed28ef3840bbf93a64376ea7814ce39f86352e14 |
| https://git.kernel.org/stable/c/d06af584be5a769d124b7302b32a033e9559761d |
