CVE-2026-63940
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
KVM: SEV: Ignore Port I/O requests of length '0'
In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Ignore Port I/O requests of length '0' Explicitly ignore Port I/O requests of length '0' (or count '0'), so that setting up the software scratch area (and other code) doesn't have to worry about underflowing the length, and to allow for WARNing on trying to configure the scratch area with len==0.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 291bd20d5d88814a73d43b55b9428feab2f28094 | affected | git | bbd3a27e4f99fdcad82d12d79c04a95dff1ff70b | Unavailable | None listed |
| 291bd20d5d88814a73d43b55b9428feab2f28094 | affected | git | 3b6035bc6bff20e89752ce4358bc4c9a9d5883f2 | Unavailable | None listed |
| 291bd20d5d88814a73d43b55b9428feab2f28094 | affected | git | 2254972d4d69e279ba4e87bf0968eb08ad0d3c92 | Unavailable | None listed |
| 291bd20d5d88814a73d43b55b9428feab2f28094 | affected | git | c30cde934c7813b4e3069765dac64ce3d31e34f2 | Unavailable | None listed |
| 291bd20d5d88814a73d43b55b9428feab2f28094 | affected | git | 3988bd2723de407ae90fa7a6f6029b4e60238c58 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.11 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.11 | Unavailable | None listed |
| 6.6.160 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.95 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.35 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.0.12 | unaffected | semver | Unavailable | 7.0.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |