| 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-2024-42155: s390/pkey: Wipe copies of protected- and secure-keys |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| s390/pkey: Wipe copies of protected- and secure-keys |
| |
| Although the clear-key of neither protected- nor secure-keys is |
| accessible, this key material should only be visible to the calling |
| process. So wipe all copies of protected- or secure-keys from stack, |
| even in case of an error. |
| |
| The Linux kernel CVE team has assigned CVE-2024-42155 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.11 with commit e80d4af0a320972aac58e2004d0ba4e44ef4c5c7 and fixed in 6.9.9 with commit c746f7ced4ad88ee48d0b6c92710e4674403185b |
| Issue introduced in 4.11 with commit e80d4af0a320972aac58e2004d0ba4e44ef4c5c7 and fixed in 6.10 with commit f2ebdadd85af4f4d0cae1e5d009c70eccc78c207 |
| |
| 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-2024-42155 |
| 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/s390/crypto/pkey_api.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/c746f7ced4ad88ee48d0b6c92710e4674403185b |
| https://git.kernel.org/stable/c/f2ebdadd85af4f4d0cae1e5d009c70eccc78c207 |
