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CVE-2026-46014

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Add missing save/restore handling of LBR MSRs MSR_IA32_DEBUGCTLMSR and LBR MSRs are currently not enumerated by KVM_GET_MSR_INDEX_LIST, and LBR MSRs cannot be set with KVM_SET_MSRS. So save/restore is completely broken. Fix it by adding the MSRs to msrs_to_save_base, and allowing writes to LBR MSRs from userspace only (as they are read-only MSRs) if LBR virtualization is enabled. Additionally, to correctly restore
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:73225ff140544de2c8e19774a507f92454e8f66a0a126e1c7f878560e42505cc
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":"affected","product":"Linux","programFiles":["arch/x86/kvm/svm/nested.c","arch/x86/kvm/svm/svm.c","arch/x86/kvm/x86.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.26"},{"lessThan":"2.6.26","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.27","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:81fd6d68abd2bb9237f8efffac5f6ed67b27e1d28a07cbb4bef6f1d7cdab3108 · sha256:37cb71de0e7eb61f… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/x86/kvm/svm/nested.c","arch/x86/kvm/svm/svm.c","arch/x86/kvm/x86.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2b922a42b531a82d7881add14a7698dcdc5e1f0a","status":"affected","version":"24e09cbf480a72f9c952af4ca77b159503dca44b","versionType":"git"},{"lessThan":"13a89ada5dcfc2539514c83ba5a2c61157f1ec6c","status":"affected","version":"24e09cbf480a72f9c952af4ca77b159503dca44b","versionType":"git"},{"lessThan":"3700f0788da6acf73b2df56690f4b201aa4aefd2","stat…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:81fd6d68abd2bb9237f8efffac5f6ed67b27e1d28a07cbb4bef6f1d7cdab3108 · sha256:37cb71de0e7eb61f… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["arch/x86/kvm/svm/nested.c","arch/x86/kvm/svm/svm.c","arch/x86/kvm/x86.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.26"},{"lessThan":"2.6.26","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.27","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:81fd6d68abd2bb9237f8efffac5f6ed67b27e1d28a07cbb4bef6f1d7cdab3108 · sha256:37cb71de0e7eb61f… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/x86/kvm/svm/nested.c","arch/x86/kvm/svm/svm.c","arch/x86/kvm/x86.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2b922a42b531a82d7881add14a7698dcdc5e1f0a","status":"affected","version":"24e09cbf480a72f9c952af4ca77b159503dca44b","versionType":"git"},{"lessThan":"13a89ada5dcfc2539514c83ba5a2c61157f1ec6c","status":"affected","version":"24e09cbf480a72f9c952af4ca77b159503dca44b","versionType":"git"},{"lessThan":"3700f0788da6acf73b2df56690f4b201aa4aefd2","stat…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:81fd6d68abd2bb9237f8efffac5f6ed67b27e1d28a07cbb4bef6f1d7cdab3108 · sha256:37cb71de0e7eb61f… · /containers/cna/affected/0

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/13a89ada5dcfc2539514c83ba5a2c61157f1ec6c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:81fd6d68abd2bb9237f8efffac5f6ed67b27e1d28a07cbb4bef6f1d7cdab3108 · sha256:37cb71de0e7eb61f… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/2b922a42b531a82d7881add14a7698dcdc5e1f0a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:81fd6d68abd2bb9237f8efffac5f6ed67b27e1d28a07cbb4bef6f1d7cdab3108 · sha256:37cb71de0e7eb61f… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/3700f0788da6acf73b2df56690f4b201aa4aefd2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:81fd6d68abd2bb9237f8efffac5f6ed67b27e1d28a07cbb4bef6f1d7cdab3108 · sha256:37cb71de0e7eb61f… · /containers/cna/references/2

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.

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