DEBIAN-CVE-2023-53996
Record from OSV · Published December 24, 2025
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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| linux | Debian:13 | 6.5.3-1 |
| linux | Debian:12 | 6.1.55-1 |
| linux | Debian:14 | 6.5.3-1 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | linux | 0 |
| Debian:12 | linux | 0, 6.1.27-1, 6.1.37-1 |
| Debian:14 | linux | 0 |
Timeline
- Dec 24, 2025 CVE Published
- Oct 26, 2026 CVE Updated
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