CVE-2026-46071
Published: May 27, 2026
Modified: May 27, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Avoid clearing VMCB_LBR in vmcb12 svm_copy_lbrs() always marks VMCB_LBR dirty in the destination VMCB. However, nested_svm_vmexit() uses it to copy LBRs to vmcb12, and clearing clean bits in vmcb12 is not architecturally defined. Move vmcb_mark_dirty() to callers and drop it for vmcb12. This also facilitates incoming refactoring that does not pass the entire VMCB to svm_copy_lbrs().
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected d20c796ca3709801f8a7fa36e8770a3dd8ebd34e - < a3f0981a5a0e0bd51ad74cc7d9eed32294b24002affected d20c796ca3709801f8a7fa36e8770a3dd8ebd34e - < 9efe23568806d1cd06f7d146f9b3037b8d585a9faffected d20c796ca3709801f8a7fa36e8770a3dd8ebd34e - < b53ab5167a81537777ac780bbd93d32613aa3bda |
Linux | Linux | affected 5.19unaffected 0 - < 5.19unaffected 6.18.27 - <= 6.18.*unaffected 7.0.4 - <= 7.0.*unaffected 7.1-rc1 - <= * |
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