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CVE PROGRAM SOURCE RECORD8.8 High

CVE-2023-54092

KVM: s390: pv: fix index value of replaced ASCE

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 9d216035d173214cd33712d67d89220ef2283ebf to < 8e635da0e0d3cb45e32fa79b36218fb98281bc10affected
  • 81ea65c9aefe100a9ace3082649bd84ae7dd9764 to < 49a2686adddebe1ae76b4d368383208656ef6606affected
  • faa2f72cb3569256480c5540d242c84e99965160 to < 017f686bcb536ff23d49c143fdf9d1fd89a9a924affected
  • faa2f72cb3569256480c5540d242c84e99965160 to < f1c7a776338f2ac5e34da40e58fe9f33ea390a5eaffected
  • faa2f72cb3569256480c5540d242c84e99965160 to < c2fceb59bbda16468bda82b002383bff59de89abaffected
  • b5477f53e1d4de6191f50748a027251b14952eebaffected
  • 63c71e83d5b6ab8adb5fcebef977052048016957affected
  • 5.10.137 to < 5.10.190affected
  • 5.15.61 to < 5.15.124affected
  • 5.18.18 to < 5.19affected
  • 5.19.2 to < 5.20affected

Linux Linux

Default version status: affected

  • 6.0affected
  • 0 to < 6.0unaffected
  • 5.10.190 to ≤ 5.10.*unaffected
  • 5.15.124 to ≤ 5.15.*unaffected
  • 6.1.43 to ≤ 6.1.*unaffected
  • 6.4.8 to ≤ 6.4.*unaffected
  • 6.5 to ≤ *unaffected

References