CVE-2026-43133
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: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation
In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation Commit cc3ed80ae69f ("KVM: nSVM: always use vmcb01 to for vmsave/vmload of guest state") made KVM always use vmcb01 for the fields controlled by VMSAVE/VMLOAD, but it missed updating the VMLOAD/VMSAVE emulation code to always use vmcb01. As a result, if VMSAVE/VMLOAD is executed by an L2 guest and is not intercepted by L1, KVM will mistakenly use vmcb02. Always use vmcb01 instead of the current VMCB.
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) |
|---|---|---|---|---|---|
| cc3ed80ae69f454c3d904af9f65394a540099723 | affected | git | 10063e1251c1485034a018236080792ad083dcc5 | Unavailable | None listed |
| cc3ed80ae69f454c3d904af9f65394a540099723 | affected | git | c3b7015000988ba35ecd5648f4b2283960f00543 | Unavailable | None listed |
| cc3ed80ae69f454c3d904af9f65394a540099723 | affected | git | 3880e331b0b31d0d5d3702b124f6c93539cd478a | Unavailable | None listed |
| cc3ed80ae69f454c3d904af9f65394a540099723 | affected | git | fce2fd4a2ca05670a91015aacccf96a1c26268fd | Unavailable | None listed |
| cc3ed80ae69f454c3d904af9f65394a540099723 | affected | git | d464cf1ed900d47c85393d40b00017b6adfc2e6c | Unavailable | None listed |
| cc3ed80ae69f454c3d904af9f65394a540099723 | affected | git | 0004ecb798b30e90d7ebfe74efae2d9423315a64 | Unavailable | None listed |
| cc3ed80ae69f454c3d904af9f65394a540099723 | affected | git | 127ccae2c185f62e6ecb4bf24f9cb307e9b9c619 | 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) |
|---|---|---|---|---|---|
| 5.13 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.13 | Unavailable | None listed |
| 5.15.202 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.165 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.128 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.75 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.16 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.6 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |