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
Affected versions
Linux kernel versions
5.9
and later are affected. Fixed in
6.1.98,
6.6.39,
6.9.9,
6.10
and their respective stable series.
References
5 total-
Patch
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Patch
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Patch
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Patch
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Frequently asked questions
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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 . It affects Linux kernel versions from 5.9 onward and has been patched in 6.1.98, 6.6.39, 6.9.9 and others. CVE-2024-42230 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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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?
Yes. CVE-2024-42230 has been patched. Fixed versions include 6.1.98, 6.6.39, 6.9.9 and others. If you are running Linux kernel 5.9 or later up to the fix versions, apply the relevant patch for your kernel branch.
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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.