| 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-2024-49891: scsi: lpfc: Validate hdwq pointers before dereferencing in reset/errata paths |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| scsi: lpfc: Validate hdwq pointers before dereferencing in reset/errata paths |
| |
| When the HBA is undergoing a reset or is handling an errata event, NULL ptr |
| dereference crashes may occur in routines such as |
| lpfc_sli_flush_io_rings(), lpfc_dev_loss_tmo_callbk(), or |
| lpfc_abort_handler(). |
| |
| Add NULL ptr checks before dereferencing hdwq pointers that may have been |
| freed due to operations colliding with a reset or errata event handler. |
| |
| The Linux kernel CVE team has assigned CVE-2024-49891 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 6.1.120 with commit 5873aa7f814754085d418848b2089ef406a02dd0 |
| Fixed in 6.6.64 with commit 232a138bd843d48cb2368f604646d990db7640f3 |
| Fixed in 6.10.14 with commit 99a801e2fca39a6f31e543fc3383058a8955896f |
| Fixed in 6.11.3 with commit fd665c8dbdb19548965b0ae80c490de00e906366 |
| Fixed in 6.12 with commit 2be1d4f11944cd6283cb97268b3e17c4424945ca |
| |
| 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-2024-49891 |
| 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_hbadisc.c |
| drivers/scsi/lpfc/lpfc_scsi.c |
| drivers/scsi/lpfc/lpfc_sli.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/5873aa7f814754085d418848b2089ef406a02dd0 |
| https://git.kernel.org/stable/c/232a138bd843d48cb2368f604646d990db7640f3 |
| https://git.kernel.org/stable/c/99a801e2fca39a6f31e543fc3383058a8955896f |
| https://git.kernel.org/stable/c/fd665c8dbdb19548965b0ae80c490de00e906366 |
| https://git.kernel.org/stable/c/2be1d4f11944cd6283cb97268b3e17c4424945ca |
