{"id":"CVE-2026-89909","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: KVM: Free init resources if kvm_init() fails\n\nkvm_loongarch_init() calls kvm_loongarch_env_init() to allocate the\nper-CPU kvm_context (vmcs) and kvm_loongarc…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: KVM: Free init resources if kvm_init() fails\n\nkvm_loongarch_init() calls kvm_loongarch_env_init() to allocate the\nper-CPU kvm_context (vmcs) and kvm_loongarc…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= 2bd6ac68726131da32ace9717aa63ff68cf6605c < 6bbbd7b719233645a5c120557a9ca1422e6b7a48","Linux >= 2bd6ac68726131da32ace9717aa63ff68cf6605c < 6b78786ee7260d9818cf1d7a245b7a655ef83076","Linux >= 2bd6ac68726131da32ace9717aa63ff68cf6605c < 3bf6f5e2e1007d38a5f35bd37e94ab645a0c40bc","Linux >= 2bd6ac68726131da32ace9717aa63ff68cf6605c < f7a1064cce3b100b54780c68529176232d8eb01e","Linux 6.7"],"published":"2026-09-16","updated":"2026-09-16","sourceUpdated":"2026-09-16T11:16:59.917","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89909","references":[{"url":"https://git.kernel.org/stable/c/3bf6f5e2e1007d38a5f35bd37e94ab645a0c40bc","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6b78786ee7260d9818cf1d7a245b7a655ef83076","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6bbbd7b719233645a5c120557a9ca1422e6b7a48","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f7a1064cce3b100b54780c68529176232d8eb01e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89909.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89909"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2535343"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89909"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89909"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89909.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-16T10:53:53.975Z","epss":0.00209,"epssPercentile":0.10964,"cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-772"],"slug":"CVE-2026-89909","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: KVM: Free init resources if kvm_init() fails\n\nkvm_loongarch_init() calls kvm_loongarch_env_init() to allocate the\nper-CPU kvm_context (vmcs) and kvm_loongarch_ops and to register the\nperf callbacks, and then calls kvm_init(). If kvm_init() fails its\nresult is returned directly, but since module_init() does not run the\nmodule_exit() stuff on failure, so kvm_loongarch_env_exit() is never\ncalled and those resources are leaked.\n\nSo call kvm_loongarch_env_exit() when kvm_init() fails, matching the\nteardown-on-failure pattern used by riscv_kvm_init().\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-10-05 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89909.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":216251,"id":"CVE-2026-89909","ts":1791274049858,"field":"cvss","old":null,"new":"5.5"},{"seq":216250,"id":"CVE-2026-89909","ts":1791274049858,"field":"severity","old":"none","new":"medium"}]}