{"id":"CVE-2026-72284","revision":"2f9cca0e1b5c46fe8f672afaf96e5305","records":[{"revision":"2f9cca0e1b5c46fe8f672afaf96e5305","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-72284","aliases":[],"title":"KVM: x86: Ignore pending PV EOI if the vCPU has since disabled PV EOIs","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: Ignore pending PV EOI if the vCPU has since disabled PV EOIs\n\nIgnore KVM's internal \"service pending PV EOI\" request if the vCPU has\ndisabled PV EOIs since the request was made.  Asserting that PV EOIs are\nenabled can fail if reading guest memory in pv_eoi_get_user() fails, i.e.\nif pv_eoi_test_and_clr_pending() bails early, *and* the vCPU also disables\nPV EOIs.\n\n  kernel BUG at arch/x86/kvm/lapic.c:3338!\n  Oops: invalid opcode: 0000 [#1] SMP\n  CPU: 4 UID: 1000 PID: 890 Comm: pv_eoi_test Not tainted 7.0.0-d585aa5894d8-vm #337 PREEMPT\n  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015\n  RIP: 0010:kvm_lapic_sync_from_vapic+0x12b/0x140 [kvm]\n  Call Trace:\n   <TASK>\n   kvm_arch_vcpu_ioctl_run+0x1075/0x1c30 [kvm]\n   kvm_vcpu_ioctl+0x2d5/0x980 [kvm]\n   __x64_sys_ioctl+0x8a/0xd0\n   do_syscall_64+0xb5/0xb40\n   entry_SYSCALL_64_after_hwframe+0x4b/0x53\n   </TASK>\n  Modules linked in: kvm_intel kvm irqbypass\n  ---[ end trace 0000000000000000 ]---","state":0,"publishedAt":"2026-08-15T05:55:07.765+00:00","modifiedAt":"2026-10-16T18:55:14.664+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/x86/kvm/lapic.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"ae7a2a3fb6f8b784c2752863f4f1f20c656f76fb\",\n                            \"lessThan\": \"038b9ce6fafda1babd1e33d52cbc6039747a6d87\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ae7a2a3fb6f8b784c2752863f4f1f20c656f76fb\",\n                            \"lessThan\": \"8e9f7a95279bf608cf4c331ed89612e28c04564f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ae7a2a3fb6f8b784c2752863f4f1f20c656f76fb\",\n                            \"lessThan\": \"ebd7845ca0471d251a1cb48d84eb165aff5b7123\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ae7a2a3fb6f8b784c2752863f4f1f20c656f76fb\",\n                            \"lessThan\": \"97542f15dc4cf6cd3fdc035e482dca54246ddf48\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ae7a2a3fb6f8b784c2752863f4f1f20c656f76fb\",\n                            \"lessThan\": \"32bdca80aa81c2cb906f50a88b220ce1ecdc5e6e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ae7a2a3fb6f8b784c2752863f4f1f20c656f76fb\",\n                            \"lessThan\": \"9285e4070df2c40585c3d7ec9571faa7a2b97e17\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/x86/kvm/lapic.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.6\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.6\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.178\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.145\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.97\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.40\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.5\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","score":7.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/038b9ce6fafda1babd1e33d52cbc6039747a6d87","https://git.kernel.org/stable/c/8e9f7a95279bf608cf4c331ed89612e28c04564f","https://git.kernel.org/stable/c/ebd7845ca0471d251a1cb48d84eb165aff5b7123","https://git.kernel.org/stable/c/97542f15dc4cf6cd3fdc035e482dca54246ddf48","https://git.kernel.org/stable/c/32bdca80aa81c2cb906f50a88b220ce1ecdc5e6e","https://git.kernel.org/stable/c/9285e4070df2c40585c3d7ec9571faa7a2b97e17"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72284","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-72284","identifiers":["CVE-2026-72284"]},"retained":false,"historicalAffected":[]}],"coverage":[]}