| 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-2024-45014: s390/boot: Avoid possible physmem_info segment corruption |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| s390/boot: Avoid possible physmem_info segment corruption |
| |
| When physical memory for the kernel image is allocated it does not |
| consider extra memory required for offsetting the image start to |
| match it with the lower 20 bits of KASLR virtual base address. That |
| might lead to kernel access beyond its memory range. |
| |
| The Linux kernel CVE team has assigned CVE-2024-45014 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.10 with commit 693d41f7c938f92d881e6a51525e6c132a186afd and fixed in 6.10.7 with commit a944cba5d57687b747023c3bc074fcf9c790f7df |
| Issue introduced in 6.10 with commit 693d41f7c938f92d881e6a51525e6c132a186afd and fixed in 6.11 with commit d7fd2941ae9a67423d1c7bee985f240e4686634f |
| |
| 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-2024-45014 |
| 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: |
| arch/s390/boot/startup.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/a944cba5d57687b747023c3bc074fcf9c790f7df |
| https://git.kernel.org/stable/c/d7fd2941ae9a67423d1c7bee985f240e4686634f |
