| 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-2024-26823: irqchip/gic-v3-its: Restore quirk probing for ACPI-based systems |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| irqchip/gic-v3-its: Restore quirk probing for ACPI-based systems |
| |
| While refactoring the way the ITSs are probed, the handling of quirks |
| applicable to ACPI-based platforms was lost. As a result, systems such as |
| HIP07 lose their GICv4 functionnality, and some other may even fail to |
| boot, unless they are configured to boot with DT. |
| |
| Move the enabling of quirks into its_probe_one(), making it common to all |
| firmware implementations. |
| |
| The Linux kernel CVE team has assigned CVE-2024-26823 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.6 with commit 9585a495ac936049dba141e8f9d99159ca06d46a and fixed in 6.6.18 with commit 91a80fff3eeed928b6fba21271f6a9719b22a5d8 |
| Issue introduced in 6.6 with commit 9585a495ac936049dba141e8f9d99159ca06d46a and fixed in 6.7.6 with commit 4c60c611441f1f1e5de8e00e98ee5a4970778a00 |
| Issue introduced in 6.6 with commit 9585a495ac936049dba141e8f9d99159ca06d46a and fixed in 6.8 with commit 8b02da04ad978827e5ccd675acf170198f747a7a |
| |
| 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-2024-26823 |
| 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/irqchip/irq-gic-v3-its.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/91a80fff3eeed928b6fba21271f6a9719b22a5d8 |
| https://git.kernel.org/stable/c/4c60c611441f1f1e5de8e00e98ee5a4970778a00 |
| https://git.kernel.org/stable/c/8b02da04ad978827e5ccd675acf170198f747a7a |
