CVE-2024-42230
MediumIn the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Fix scv instruction crash with kexec kexec on pseries disables AIL (reloc_on_exc), required for scv instruction support, before other CPUs have been shut down. This means they can execute scv instructions after AIL is disabled, which causes an interrupt at an unexpected entry location that crashes the kernel. Change the kexec sequence to disable AIL after other CPUs have been brought down. As a refresher, the real-mode scv interrupt vector is 0x17000, and the fixed-location head code probably couldn't easily deal with implementing such high addresses so it was just decided not to support that interrupt at all.
CVSS 3.1 score
4.4
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
References
The following references provide additional information about CVE-2024-42230 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
-
-
PatchKernel patch commithttps://git.kernel.org/stable/c/21a741eb75f80397e5f7d3739e24d7d75e619011
-
PatchKernel patch commithttps://git.kernel.org/stable/c/8c6506616386ce37e59b2745fc481c6713fae4f3
-
PatchKernel patch commithttps://git.kernel.org/stable/c/c550679d604798d9fed8a5b2bb5693448a25407c
Frequently asked questions
-
What is CVE-2024-42230?
CVE-2024-42230 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.4 out of 10 . CVE-2024-42230 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
-
What is the CVSS score for CVE-2024-42230?
CVE-2024-42230 has a CVSS score of 4.4 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H. -
Is there a patch available for CVE-2024-42230?
No patch is currently available for CVE-2024-42230. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
-
Is CVE-2024-42230 actively exploited?
No — CVE-2024-42230 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.