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CVE-2023-53996

x86/sev: Make enc_dec_hypercall() accept a size instead of npages

In the Linux kernel, the following vulnerability has been resolved:

x86/sev: Make enc_dec_hypercall() accept a size instead of npages

enc_dec_hypercall() accepted a page count instead of a size, which
forced its callers to round up. As a result, non-page aligned
vaddrs caused pages to be spuriously marked as decrypted via the
encryption status hypercall, which in turn caused consistent
corruption of pages during live migration. Live migration requires
accurate encryption status information to avoid migrating pages
from the wrong perspective.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 064ce6c550a0630789978bfec7a13ab2bd1bdcdf
Version < ba50e7773a99a109a1ea6f753b766a080d3b21cc
Status affected
Version 064ce6c550a0630789978bfec7a13ab2bd1bdcdf
Version < 6615212d8e131b45bd9705b0d69cc0d2f624666f
Status affected
Version 064ce6c550a0630789978bfec7a13ab2bd1bdcdf
Version < 8ae7457e71a320867d868f2622d7c643596e4f43
Status affected
Version 064ce6c550a0630789978bfec7a13ab2bd1bdcdf
Version < ac3f9c9f1b37edaa7d1a9b908bc79d843955a1a2
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 5.16
Status affected
Version 0
Version < 5.16
Status unaffected
Version <= 6.1.*
Version 6.1.53
Status unaffected
Version <= 6.4.*
Version 6.4.16
Status unaffected
Version <= 6.5.*
Version 6.5.3
Status unaffected
Version <= *
Version 6.6
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.02% 0.054
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.