| 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-2024-49991: drm/amdkfd: amdkfd_free_gtt_mem clear the correct pointer |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/amdkfd: amdkfd_free_gtt_mem clear the correct pointer |
| |
| Pass pointer reference to amdgpu_bo_unref to clear the correct pointer, |
| otherwise amdgpu_bo_unref clear the local variable, the original pointer |
| not set to NULL, this could cause use-after-free bug. |
| |
| The Linux kernel CVE team has assigned CVE-2024-49991 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.3 with commit 130e0371b7d454bb4a861253c822b9f911ad5d19 and fixed in 6.1.118 with commit e7831613cbbcd9058d3658fbcdc5d5884ceb2e0c |
| Issue introduced in 4.3 with commit 130e0371b7d454bb4a861253c822b9f911ad5d19 and fixed in 6.6.55 with commit 30ceb873cc2e97348d9da2265b2d1ddf07f682e1 |
| Issue introduced in 4.3 with commit 130e0371b7d454bb4a861253c822b9f911ad5d19 and fixed in 6.10.14 with commit 71f3240f82987f0f070ea5bed559033de7d4c0e1 |
| Issue introduced in 4.3 with commit 130e0371b7d454bb4a861253c822b9f911ad5d19 and fixed in 6.11.3 with commit 6c9289806591807e4e3be9a23df8ee2069180055 |
| Issue introduced in 4.3 with commit 130e0371b7d454bb4a861253c822b9f911ad5d19 and fixed in 6.12 with commit c86ad39140bbcb9dc75a10046c2221f657e8083b |
| |
| 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-2024-49991 |
| 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_amdkfd.c |
| drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h |
| drivers/gpu/drm/amd/amdkfd/kfd_chardev.c |
| drivers/gpu/drm/amd/amdkfd/kfd_device.c |
| drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c |
| drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c |
| drivers/gpu/drm/amd/amdkfd/kfd_process.c |
| drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.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/e7831613cbbcd9058d3658fbcdc5d5884ceb2e0c |
| https://git.kernel.org/stable/c/30ceb873cc2e97348d9da2265b2d1ddf07f682e1 |
| https://git.kernel.org/stable/c/71f3240f82987f0f070ea5bed559033de7d4c0e1 |
| https://git.kernel.org/stable/c/6c9289806591807e4e3be9a23df8ee2069180055 |
| https://git.kernel.org/stable/c/c86ad39140bbcb9dc75a10046c2221f657e8083b |
