| 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-2024-36952: scsi: lpfc: Move NPIV's transport unregistration to after resource clean up |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| scsi: lpfc: Move NPIV's transport unregistration to after resource clean up |
| |
| There are cases after NPIV deletion where the fabric switch still believes |
| the NPIV is logged into the fabric. This occurs when a vport is |
| unregistered before the Remove All DA_ID CT and LOGO ELS are sent to the |
| fabric. |
| |
| Currently fc_remove_host(), which calls dev_loss_tmo for all D_IDs including |
| the fabric D_ID, removes the last ndlp reference and frees the ndlp rport |
| object. This sometimes causes the race condition where the final DA_ID and |
| LOGO are skipped from being sent to the fabric switch. |
| |
| Fix by moving the fc_remove_host() and scsi_remove_host() calls after DA_ID |
| and LOGO are sent. |
| |
| The Linux kernel CVE team has assigned CVE-2024-36952 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 5.15.159 with commit f2c7f029051edc4b394bb48edbe2297575abefe0 |
| Fixed in 6.1.91 with commit 0936809d968ecf81e0726fbd02ff2a5732d960c3 |
| Fixed in 6.6.31 with commit 76337eb8daee32bcc67742efab3168ed4ca299d0 |
| Fixed in 6.8.10 with commit 718602cd15f4c5710850090ea3066a89eeb46278 |
| Fixed in 6.9 with commit 4ddf01f2f1504fa08b766e8cfeec558e9f8eef6c |
| |
| 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-2024-36952 |
| 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/scsi/lpfc/lpfc_vport.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/f2c7f029051edc4b394bb48edbe2297575abefe0 |
| https://git.kernel.org/stable/c/0936809d968ecf81e0726fbd02ff2a5732d960c3 |
| https://git.kernel.org/stable/c/76337eb8daee32bcc67742efab3168ed4ca299d0 |
| https://git.kernel.org/stable/c/718602cd15f4c5710850090ea3066a89eeb46278 |
| https://git.kernel.org/stable/c/4ddf01f2f1504fa08b766e8cfeec558e9f8eef6c |
