{"id":"CVE-2026-31569","summary":"LoongArch: KVM: Handle the case that EIOINTC's coremap is empty","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: KVM: Handle the case that EIOINTC's coremap is empty\n\nEIOINTC's coremap in eiointc_update_sw_coremap() can be empty, currently\nwe get a cpuid with -1 in this case, but we actually need 0 because it's\nsimilar as the case that cpuid \u003e= 4.\n\nThis fix an out-of-bounds access to kvm_arch::phyid_map::phys_map[].","modified":"2026-07-08T08:00:06.956984066Z","published":"2026-04-24T14:35:48.768Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31569.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/126053d0a685bf1f2e98db8966386f38b2336338"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2a0cbcd28ecf6e0b88fa498bebb94bd1be61a7c3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b97bd69eb0f67b5f961b304d28e9ba45e202d841"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31569.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31569"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"3956a52bc05bd811082a3c9d2b423ee957e6fefc"},{"fixed":"126053d0a685bf1f2e98db8966386f38b2336338"},{"fixed":"2a0cbcd28ecf6e0b88fa498bebb94bd1be61a7c3"},{"fixed":"b97bd69eb0f67b5f961b304d28e9ba45e202d841"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31569.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.21"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.11"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31569.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:H"}]}