Vulnerability details
CVE-2023-54092
Linux Linux
KVM: s390: pv: fix index value of replaced ASCE
CVSS 3.1
8.8High
Official description
In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pv: fix index value of replaced ASCE The index field of the struct page corresponding to a guest ASCE should be 0. When replacing the ASCE in s390_replace_asce(), the index of the new ASCE should also be set to 0. Having the wrong index might lead to the wrong addresses being passed around when notifying pte invalidations, and eventually to validity intercepts (VM crash) if the prefix gets unmapped and the notifier gets called with the wrong address.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.8High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 6.0 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 63c71e83d5b6ab8adb5fcebef977052048016957 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | b5477f53e1d4de6191f50748a027251b14952eeb | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 5.10.137 ≤ v < 5.10.190 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 5.15.61 ≤ v < 5.15.124 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 5.18.18 ≤ v < 5.19 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 5.19.2 ≤ v < 5.20 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 81ea65c9aefe100a9ace3082649bd84ae7dd9764 ≤ v < 49a2686adddebe1ae76b4d368383208656ef6606 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 9d216035d173214cd33712d67d89220ef2283ebf ≤ v < 8e635da0e0d3cb45e32fa79b36218fb98281bc10 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | faa2f72cb3569256480c5540d242c84e99965160 ≤ v < c2fceb59bbda16468bda82b002383bff59de89ab | CVEProject cvelistV5 (CNA) |
| Linux | Linux | faa2f72cb3569256480c5540d242c84e99965160 ≤ v < f1c7a776338f2ac5e34da40e58fe9f33ea390a5e | CVEProject cvelistV5 (CNA) |
| Linux | Linux | faa2f72cb3569256480c5540d242c84e99965160 ≤ v < 017f686bcb536ff23d49c143fdf9d1fd89a9a924 | CVEProject cvelistV5 (CNA) |
References and advisories
5- https://git.kernel.org/stable/c/8e635da0e0d3cb45e32fa79b36218fb98281bc10
- https://git.kernel.org/stable/c/49a2686adddebe1ae76b4d368383208656ef6606
- https://git.kernel.org/stable/c/017f686bcb536ff23d49c143fdf9d1fd89a9a924
- https://git.kernel.org/stable/c/f1c7a776338f2ac5e34da40e58fe9f33ea390a5e
- https://git.kernel.org/stable/c/c2fceb59bbda16468bda82b002383bff59de89ab
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Details
- Published
- 2025-12-24
- Last updated
- 2026-10-16
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.21%
Probability of exploitation in 30 days
12.4%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- —