CVE-2024-42230powerpc/pseries: Fix scv instruction crash with kexec
- 4.4MediumCVSS base score
- 0.20%Exploitation in 30 daysEPSS · top 90% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In 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.
Timeline
ID reserved
By Linux
Published
- 22 months later
· 22 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium4.4 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.20% · top 90% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.4.
Affected products
- affected 7fa95f9adaee7e5cbb195d3359741120829e488b – < c550679d604798d9fed8a5b2bb5693448a25407c
- affected 7fa95f9adaee7e5cbb195d3359741120829e488b – < d10e3c39001e9194b9a1bfd6979bd3fa19dccdc5
- affected 7fa95f9adaee7e5cbb195d3359741120829e488b – < 8c6506616386ce37e59b2745fc481c6713fae4f3
- affected 7fa95f9adaee7e5cbb195d3359741120829e488b – < 21a741eb75f80397e5f7d3739e24d7d75e619011
- affected 5.9
- unaffected < 5.9
- unaffected 6.1.98 – ≤ 6.1.*
- unaffected 6.6.39 – ≤ 6.6.*
- unaffected 6.9.9 – ≤ 6.9.*
- unaffected 6.10 – ≤ *
References
References5
- https://git.kernel.org/stable/c/c550679d604798d9fed8a5b2bb5693448a25407c (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/d10e3c39001e9194b9a1bfd6979bd3fa19dccdc5 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/8c6506616386ce37e59b2745fc481c6713fae4f3 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/21a741eb75f80397e5f7d3739e24d7d75e619011 (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2024-39877 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2024-42230)Record last updated .