https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-02T13:12:26.591185+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2023-53996 CVE-2023-53996 — x86/sev: Make enc_dec_hypercall() accept a size instead of npages 2026-10-02T13:12:26.760584+00:00

Affected: Linux

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.