CVE-2026-80891
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: s390: pci: Validate AIBV and AISB before pinning guest pages
In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Validate AIBV and AISB before pinning guest pages The AIBV holds one bit per MSI-X vector for a given function. The size of the bit vector is derived from the NOI and the AIBVO. If the size of the AIBV exceeds a single page boundary, then reject the request as we cannot safely pin the guest AIBV. Similarly reject the request if the AISB address is not 8-byte aligned as the architecture requires doubleword alignment for the summary bit address. Since the AISBO can address up to 64 bits, the size of the AISB can only be 8 bytes for the function. This also ensures the AISB doesn't exceed a single page boundary.
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) |
|---|---|---|---|---|---|
| 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc | affected | git | 3a1c64220ede4ac9ef9a3e76f008ff60a34f4c48 | Unavailable | None listed |
| 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc | affected | git | f00ef8efd41440129ccd88f4a1ebebf8d61d297f | Unavailable | None listed |
| 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc | affected | git | 15df7700dd99f8a37f5c6ed2dcf1e33009cdba47 | Unavailable | None listed |
| 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc | affected | git | b878ba7e28144c9a857bc847d31f3c45413450ac | Unavailable | None listed |
| 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc | affected | git | fbfe683f8b1ae7e40b56bdd6daf5bd671bc3a528 | Unavailable | None listed |
| 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc | affected | git | 868d32ac72cba21c5c6d8a66a814b7c25a3a5c01 | 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) |
|---|---|---|---|---|---|
| 6.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.0 | Unavailable | None listed |
| 6.1.183 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.151 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.103 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.44 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.8 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |