| 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-2024-40989: KVM: arm64: Disassociate vcpus from redistributor region on teardown |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| KVM: arm64: Disassociate vcpus from redistributor region on teardown |
| |
| When tearing down a redistributor region, make sure we don't have |
| any dangling pointer to that region stored in a vcpu. |
| |
| The Linux kernel CVE team has assigned CVE-2024-40989 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.13 with commit e5a35635464bc5304674b84ea42615a3fd0bd949 and fixed in 6.1.96 with commit 68df4fc449fcc24347209e500ce26d5816705a77 |
| Issue introduced in 5.13 with commit e5a35635464bc5304674b84ea42615a3fd0bd949 and fixed in 6.6.36 with commit 48bb62859d47c5c4197a8c01128d0fa4f46ee58c |
| Issue introduced in 5.13 with commit e5a35635464bc5304674b84ea42615a3fd0bd949 and fixed in 6.9.7 with commit 152b4123f21e6aff31cea01158176ad96a999c76 |
| Issue introduced in 5.13 with commit e5a35635464bc5304674b84ea42615a3fd0bd949 and fixed in 6.10 with commit 0d92e4a7ffd5c42b9fa864692f82476c0bf8bcc8 |
| |
| 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-2024-40989 |
| 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: |
| arch/arm64/kvm/vgic/vgic-init.c |
| arch/arm64/kvm/vgic/vgic-mmio-v3.c |
| arch/arm64/kvm/vgic/vgic.h |
| |
| |
| 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/68df4fc449fcc24347209e500ce26d5816705a77 |
| https://git.kernel.org/stable/c/48bb62859d47c5c4197a8c01128d0fa4f46ee58c |
| https://git.kernel.org/stable/c/152b4123f21e6aff31cea01158176ad96a999c76 |
| https://git.kernel.org/stable/c/0d92e4a7ffd5c42b9fa864692f82476c0bf8bcc8 |
