{"id":"CVE-2026-98863","aliases":[],"cve":{"records":[{"id":"CVE-2026-98863","source":"Linux","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-25T10:25:14.376Z","published":"2026-10-18T15:51:24.446Z","modified":"2026-11-10T18:15:20.513Z"}],"publishers":[{"name":"Linux","role":"CNA","organizationId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","modified":"2026-11-10T18:15:20.513Z"}],"references":[{"url":"https://git.kernel.org/stable/c/1e231eedb0c5aafdc8d96a816ec75554aa69004d","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/525694a6021ec6c8f7ce1f38acdf2dd77698fec1","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/942192dbcd3a06695ef6b31cf10a41a21cf014d8","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/10180a277549339020b08000206092c07e0bff5a","tags":[],"source":"Linux"}],"weaknesses":[],"applicability":[{"source":"Linux","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"6.12.117"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"6.18.56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"7.2.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"7.3"}]}]}]}],"prioritization":[]},"title":"KVM: x86: Re-pend GET_NESTED_STATE_PAGES if getting said pages fails","titleSource":"Linux","descriptionSource":"Linux","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: Re-pend GET_NESTED_STATE_PAGES if getting said pages fails\n\nRe-pend GET_NESTED_STATE_PAGES before exiting to userspace if getting the\nnested pages fails in the KVM_RUN path.  If userspace re-runs the vCPU, and\nvmcs02 holds valid PFNs from the *previous* run of L2, then KVM could\nre-enter L2 with stale, unpinned PFNs mapped into e.g. the vAPIC page.\n\nNote, both SVM and VMX (as of commit 11722439fb20 (\"KVM: nVMX: Ensure\nKVM_REQ_GET_NESTED_STATE_PAGES is cleared on VM-Exit\") ensure the request\nis cleared on VM-Exit (including the \"forced\" case), i.e. there is no risk\nof double-mapping due to emulated VMLAUNCH/VMRESUME/VMRUN *and* the request\ntrying to map the nested pages.","score":null,"severity":"unknown","published":"2026-10-18T15:51:24.446Z","modified":"2026-11-10T18:15:20.513Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"671ddc700fd08b94967b1e2a937020e30c838609","status":"affected","lessThan":"1e231eedb0c5aafdc8d96a816ec75554aa69004d","versionType":"git"},{"version":"671ddc700fd08b94967b1e2a937020e30c838609","status":"affected","lessThan":"525694a6021ec6c8f7ce1f38acdf2dd77698fec1","versionType":"git"},{"version":"671ddc700fd08b94967b1e2a937020e30c838609","status":"affected","lessThan":"942192dbcd3a06695ef6b31cf10a41a21cf014d8","versionType":"git"},{"version":"671ddc700fd08b94967b1e2a937020e30c838609","status":"affected","lessThan":"10180a277549339020b08000206092c07e0bff5a","versionType":"git"}],"defaultStatus":"unaffected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-98863"},{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"5.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.4","versionType":"semver"},{"version":"6.12.117","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.56","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.10","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"defaultStatus":"affected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-98863"}],"remediation":[],"references":["https://git.kernel.org/stable/c/1e231eedb0c5aafdc8d96a816ec75554aa69004d","https://git.kernel.org/stable/c/525694a6021ec6c8f7ce1f38acdf2dd77698fec1","https://git.kernel.org/stable/c/942192dbcd3a06695ef6b31cf10a41a21cf014d8","https://git.kernel.org/stable/c/10180a277549339020b08000206092c07e0bff5a"],"sources":[{"name":"CVE","id":"CVE-2026-98863","modified":"2026-11-10T18:15:20.513Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-98863"}],"assessments":[],"sourceAffected":[],"observedAt":"2026-11-10T18:25:24.173Z","kev":{"status":"not-listed","checkedAt":"2026-11-14T23:00:32.916Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":null}