| 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-2024-41011: drm/amdkfd: don't allow mapping the MMIO HDP page with large pages |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/amdkfd: don't allow mapping the MMIO HDP page with large pages |
| |
| We don't get the right offset in that case. The GPU has |
| an unused 4K area of the register BAR space into which you can |
| remap registers. We remap the HDP flush registers into this |
| space to allow userspace (CPU or GPU) to flush the HDP when it |
| updates VRAM. However, on systems with >4K pages, we end up |
| exposing PAGE_SIZE of MMIO space. |
| |
| The Linux kernel CVE team has assigned CVE-2024-41011 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.3 with commit d8e408a82704c86ba87c3d58cfe69dcdb758aa07 and fixed in 5.4.283 with commit 009c4d78bcf07c4ac2e3dd9f275b4eaa72b4f884 |
| Issue introduced in 5.3 with commit d8e408a82704c86ba87c3d58cfe69dcdb758aa07 and fixed in 5.10.225 with commit f7276cdc1912325b64c33fcb1361952c06e55f63 |
| Issue introduced in 5.3 with commit d8e408a82704c86ba87c3d58cfe69dcdb758aa07 and fixed in 5.15.166 with commit 8ad4838040e5515939c071a0f511ce2661a0889d |
| Issue introduced in 5.3 with commit d8e408a82704c86ba87c3d58cfe69dcdb758aa07 and fixed in 6.1.91 with commit 89fffbdf535ce659c1a26b51ad62070566e33b28 |
| Issue introduced in 5.3 with commit d8e408a82704c86ba87c3d58cfe69dcdb758aa07 and fixed in 6.6.31 with commit 4b4cff994a27ebf7bd3fb9a798a1cdfa8d01b724 |
| Issue introduced in 5.3 with commit d8e408a82704c86ba87c3d58cfe69dcdb758aa07 and fixed in 6.8.10 with commit 6186c93560889265bfe0914609c274eff40bbeb5 |
| Issue introduced in 5.3 with commit d8e408a82704c86ba87c3d58cfe69dcdb758aa07 and fixed in 6.9 with commit be4a2a81b6b90d1a47eaeaace4cc8e2cb57b96c7 |
| |
| 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-2024-41011 |
| 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_chardev.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/009c4d78bcf07c4ac2e3dd9f275b4eaa72b4f884 |
| https://git.kernel.org/stable/c/f7276cdc1912325b64c33fcb1361952c06e55f63 |
| https://git.kernel.org/stable/c/8ad4838040e5515939c071a0f511ce2661a0889d |
| https://git.kernel.org/stable/c/89fffbdf535ce659c1a26b51ad62070566e33b28 |
| https://git.kernel.org/stable/c/4b4cff994a27ebf7bd3fb9a798a1cdfa8d01b724 |
| https://git.kernel.org/stable/c/6186c93560889265bfe0914609c274eff40bbeb5 |
| https://git.kernel.org/stable/c/be4a2a81b6b90d1a47eaeaace4cc8e2cb57b96c7 |
