| 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-2023-52482: x86/srso: Add SRSO mitigation for Hygon processors |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| x86/srso: Add SRSO mitigation for Hygon processors |
| |
| Add mitigation for the speculative return stack overflow vulnerability |
| which exists on Hygon processors too. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52482 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.20 with commit c9661c1e80b609cd038db7c908e061f0535804ef and fixed in 5.10.215 with commit e7ea043bc3f19473561c08565047b3f1671bf35d |
| Issue introduced in 4.20 with commit c9661c1e80b609cd038db7c908e061f0535804ef and fixed in 5.15.134 with commit f090a8b4d2e3ec6f318d6fdab243a2edc5a8cc37 |
| Issue introduced in 4.20 with commit c9661c1e80b609cd038db7c908e061f0535804ef and fixed in 6.1.56 with commit 6ce2f297a7168274547d0b5aea6c7c16268b8a96 |
| Issue introduced in 4.20 with commit c9661c1e80b609cd038db7c908e061f0535804ef and fixed in 6.5.6 with commit cf43b304b6952b549d58feabc342807b334f03d4 |
| Issue introduced in 4.20 with commit c9661c1e80b609cd038db7c908e061f0535804ef and fixed in 6.6 with commit a5ef7d68cea1344cf524f04981c2b3f80bedbb0d |
| |
| 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-2023-52482 |
| 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/x86/kernel/cpu/common.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/e7ea043bc3f19473561c08565047b3f1671bf35d |
| https://git.kernel.org/stable/c/f090a8b4d2e3ec6f318d6fdab243a2edc5a8cc37 |
| https://git.kernel.org/stable/c/6ce2f297a7168274547d0b5aea6c7c16268b8a96 |
| https://git.kernel.org/stable/c/cf43b304b6952b549d58feabc342807b334f03d4 |
| https://git.kernel.org/stable/c/a5ef7d68cea1344cf524f04981c2b3f80bedbb0d |
