| 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-2023-52508: nvme-fc: Prevent null pointer dereference in nvme_fc_io_getuuid() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| nvme-fc: Prevent null pointer dereference in nvme_fc_io_getuuid() |
| |
| The nvme_fc_fcp_op structure describing an AEN operation is initialized with a |
| null request structure pointer. An FC LLDD may make a call to |
| nvme_fc_io_getuuid passing a pointer to an nvmefc_fcp_req for an AEN operation. |
| |
| Add validation of the request structure pointer before dereference. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52508 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 6.1.56 with commit be90c9e29dd59b7d19a73297a1590ff3ec1d22ea |
| Fixed in 6.5.6 with commit dd46b3ac7322baf3772b33b29726e94f98289db7 |
| Fixed in 6.6 with commit 8ae5b3a685dc59a8cf7ccfe0e850999ba9727a3c |
| |
| 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-2023-52508 |
| 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/nvme/host/fc.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/be90c9e29dd59b7d19a73297a1590ff3ec1d22ea |
| https://git.kernel.org/stable/c/dd46b3ac7322baf3772b33b29726e94f98289db7 |
| https://git.kernel.org/stable/c/8ae5b3a685dc59a8cf7ccfe0e850999ba9727a3c |
