Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-43483

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Set/clear CR8 write interception when AVIC is (de)activated Explicitly set/clear CR8 write interception when AVIC is (de)activated to fix a bug where KVM leaves the interception enabled after AVIC is activated. E.g. if KVM emulates INIT=>WFS while AVIC is deactivated, CR8 will remain intercepted in perpetuity. On its own, the dangling CR8 intercept is "just" a performance issue, but combined with the TPR sync bug f
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:6e016df7a275f8986a22b58f76b97644604d0ab3d437d28f598160ebf7b92f88
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/x86/kvm/svm/avic.c","arch/x86/kvm/svm/svm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a4123fe5d9122eef9852e4921f7cc463420f30d4","status":"affected","version":"3bbf3565f48ce3999b5a12cde946f81bd4475312","versionType":"git"},{"lessThan":"816fa1dfae4532e851b1fe6b2434c753ecbd86c7","status":"affected","version":"3bbf3565f48ce3999b5a12cde946f81bd4475312","versionType":"git"},{"lessThan":"01651e7751edbbc0fb4598f8367a3dabcfc8c182","status":"affected","version…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a9a72558b83653f05f06309ab204e69512733ed1ec222d469a872ea0db5aa912 · sha256:c8dcfc5fb95d22f7… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["arch/x86/kvm/svm/avic.c","arch/x86/kvm/svm/svm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.7"},{"lessThan":"4.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.78","versionTyp…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a9a72558b83653f05f06309ab204e69512733ed1ec222d469a872ea0db5aa912 · sha256:c8dcfc5fb95d22f7… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/x86/kvm/svm/avic.c","arch/x86/kvm/svm/svm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a4123fe5d9122eef9852e4921f7cc463420f30d4","status":"affected","version":"3bbf3565f48ce3999b5a12cde946f81bd4475312","versionType":"git"},{"lessThan":"816fa1dfae4532e851b1fe6b2434c753ecbd86c7","status":"affected","version":"3bbf3565f48ce3999b5a12cde946f81bd4475312","versionType":"git"},{"lessThan":"01651e7751edbbc0fb4598f8367a3dabcfc8c182","status":"affected","version…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a9a72558b83653f05f06309ab204e69512733ed1ec222d469a872ea0db5aa912 · sha256:c8dcfc5fb95d22f7… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["arch/x86/kvm/svm/avic.c","arch/x86/kvm/svm/svm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.7"},{"lessThan":"4.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.78","versionTyp…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a9a72558b83653f05f06309ab204e69512733ed1ec222d469a872ea0db5aa912 · sha256:c8dcfc5fb95d22f7… · /containers/cna/affected/1

Source references

6 source assertions
{"url":"https://git.kernel.org/stable/c/01651e7751edbbc0fb4598f8367a3dabcfc8c182"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a9a72558b83653f05f06309ab204e69512733ed1ec222d469a872ea0db5aa912 · sha256:c8dcfc5fb95d22f7… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/737410b32bd615b321da4fbeda490351b9af5e8b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a9a72558b83653f05f06309ab204e69512733ed1ec222d469a872ea0db5aa912 · sha256:c8dcfc5fb95d22f7… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/816fa1dfae4532e851b1fe6b2434c753ecbd86c7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a9a72558b83653f05f06309ab204e69512733ed1ec222d469a872ea0db5aa912 · sha256:c8dcfc5fb95d22f7… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/87d0f901a9bd8ae6be57249c737f20ac0cace93d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a9a72558b83653f05f06309ab204e69512733ed1ec222d469a872ea0db5aa912 · sha256:c8dcfc5fb95d22f7… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/a4123fe5d9122eef9852e4921f7cc463420f30d4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a9a72558b83653f05f06309ab204e69512733ed1ec222d469a872ea0db5aa912 · sha256:c8dcfc5fb95d22f7… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/ba3bca40f9f25c053f69413e5f4a41dd0fd762bf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a9a72558b83653f05f06309ab204e69512733ed1ec222d469a872ea0db5aa912 · sha256:c8dcfc5fb95d22f7… · /containers/cna/references/3

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

← Back to CVE Explorer