7.9
CVSS 3.1
Няма данни
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Няма потвърждение
Атакува се
Няма данни
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
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.
Засегнати продукти
- Linux Linux: cc3ed80ae69f454c3d904af9f65394a540099723 преди 10063e1251c1485034a018236080792ad083dcc5; cc3ed80ae69f454c3d904af9f65394a540099723 преди c3b7015000988ba35ecd5648f4b2283960f00543; cc3ed80ae69f454c3d904af9f65394a540099723 преди 3880e331b0b31d0d5d3702b124f6c93539cd478a; cc3ed80ae69f454c3d904af9f65394a540099723 преди fce2fd4a2ca05670a91015aacccf96a1c26268fd; cc3ed80ae69f454c3d904af9f65394a540099723 преди d464cf1ed900d47c85393d40b00017b6adfc2e6c; cc3ed80ae69f454c3d904af9f65394a540099723 преди 0004ecb798b30e90d7ebfe74efae2d9423315a64; cc3ed80ae69f454c3d904af9f65394a540099723 преди 127ccae2c185f62e6ecb4bf24f9cb307e9b9c619
- Linux Linux: 5.13; преди 5.13; 5.15.202 до 5.15.*; 6.1.165 до 6.1.*; 6.6.128 до 6.6.*; 6.12.75 до 6.12.*; 6.18.16 до 6.18.*; 6.19.6 до 6.19.*; 7.0 до *
- Red Hat Red Hat Enterprise Linux 10: 0:6.12.0-211.53.1.el10_2 преди *
- Red Hat Red Hat Enterprise Linux 9: 0:5.14.0-687.46.1.el9_8 преди *
- Red Hat Red Hat Enterprise Linux 6
- Red Hat Red Hat Enterprise Linux 7
- Red Hat Red Hat Enterprise Linux 8
- Red Hat Red Hat OpenShift Container Platform 4
Вид слабост
История
- 6 май 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-43133
- https://nvd.nist.gov/vuln/detail/CVE-2026-43133
- https://git.kernel.org/stable/c/10063e1251c1485034a018236080792ad083dcc5
- https://git.kernel.org/stable/c/c3b7015000988ba35ecd5648f4b2283960f00543
- https://git.kernel.org/stable/c/3880e331b0b31d0d5d3702b124f6c93539cd478a
- https://git.kernel.org/stable/c/fce2fd4a2ca05670a91015aacccf96a1c26268fd
- https://git.kernel.org/stable/c/d464cf1ed900d47c85393d40b00017b6adfc2e6c
- https://git.kernel.org/stable/c/0004ecb798b30e90d7ebfe74efae2d9423315a64
- https://git.kernel.org/stable/c/127ccae2c185f62e6ecb4bf24f9cb307e9b9c619
- https://access.redhat.com/security/cve/CVE-2026-43133
- https://bugzilla.redhat.com/show_bug.cgi?id=2467065
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43133.json
- https://access.redhat.com/errata/RHSA-2026:66357
- https://access.redhat.com/errata/RHSA-2026:65334
- https://access.redhat.com/errata/RHSA-2026:66180
- https://access.redhat.com/errata/RHSA-2026:67468
- https://access.redhat.com/errata/RHSA-2026:67469