CVE-2023-54092High· 8.8▾ TwilightIn 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_a…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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.
Linux >= 9d216035d173214cd33712d67d89220ef2283ebf < 8e635da0e0d3cb45e32fa79b36218fb98281bc10Linux >= 81ea65c9aefe100a9ace3082649bd84ae7dd9764 < 49a2686adddebe1ae76b4d368383208656ef6606Linux >= faa2f72cb3569256480c5540d242c84e99965160 < 017f686bcb536ff23d49c143fdf9d1fd89a9a924Linux >= faa2f72cb3569256480c5540d242c84e99965160 < f1c7a776338f2ac5e34da40e58fe9f33ea390a5eLinux >= faa2f72cb3569256480c5540d242c84e99965160 < c2fceb59bbda16468bda82b002383bff59de89abLinux b5477f53e1d4de6191f50748a027251b14952eebLinux 63c71e83d5b6ab8adb5fcebef977052048016957Linux >= 5.10.137 < 5.10.190Linux >= 5.15.61 < 5.15.124Linux >= 5.18.18 < 5.19Linux >= 5.19.2 < 5.20Linux 6.0Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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