| 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-2024-44978: drm/xe: Free job before xe_exec_queue_put |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/xe: Free job before xe_exec_queue_put |
| |
| Free job depends on job->vm being valid, the last xe_exec_queue_put can |
| destroy the VM. Prevent UAF by freeing job before xe_exec_queue_put. |
| |
| (cherry picked from commit 32a42c93b74c8ca6d0915ea3eba21bceff53042f) |
| |
| The Linux kernel CVE team has assigned CVE-2024-44978 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.8 with commit dd08ebf6c3525a7ea2186e636df064ea47281987 and fixed in 6.10.7 with commit 98aa0330f200b9b8fb9e1298e006eda57a13351c |
| Issue introduced in 6.8 with commit dd08ebf6c3525a7ea2186e636df064ea47281987 and fixed in 6.11 with commit 9e7f30563677fbeff62d368d5d2a5ac7aaa9746a |
| |
| 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-2024-44978 |
| 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/xe/xe_sched_job.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/98aa0330f200b9b8fb9e1298e006eda57a13351c |
| https://git.kernel.org/stable/c/9e7f30563677fbeff62d368d5d2a5ac7aaa9746a |
