{"api_version":"1","generated_at":"2026-08-15T20:27:07+00:00","cve":"CVE-2026-72284","urls":{"html":"https://cve.report/CVE-2026-72284","api":"https://cve.report/api/cve/CVE-2026-72284.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-72284","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-72284"},"summary":{"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":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:21:59","updated_at":"2026-08-15 06:21:59"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/97542f15dc4cf6cd3fdc035e482dca54246ddf48","name":"https://git.kernel.org/stable/c/97542f15dc4cf6cd3fdc035e482dca54246ddf48","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/038b9ce6fafda1babd1e33d52cbc6039747a6d87","name":"https://git.kernel.org/stable/c/038b9ce6fafda1babd1e33d52cbc6039747a6d87","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8e9f7a95279bf608cf4c331ed89612e28c04564f","name":"https://git.kernel.org/stable/c/8e9f7a95279bf608cf4c331ed89612e28c04564f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9285e4070df2c40585c3d7ec9571faa7a2b97e17","name":"https://git.kernel.org/stable/c/9285e4070df2c40585c3d7ec9571faa7a2b97e17","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/32bdca80aa81c2cb906f50a88b220ce1ecdc5e6e","name":"https://git.kernel.org/stable/c/32bdca80aa81c2cb906f50a88b220ce1ecdc5e6e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ebd7845ca0471d251a1cb48d84eb165aff5b7123","name":"https://git.kernel.org/stable/c/ebd7845ca0471d251a1cb48d84eb165aff5b7123","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-72284","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72284","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ae7a2a3fb6f8b784c2752863f4f1f20c656f76fb 038b9ce6fafda1babd1e33d52cbc6039747a6d87 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ae7a2a3fb6f8b784c2752863f4f1f20c656f76fb 8e9f7a95279bf608cf4c331ed89612e28c04564f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ae7a2a3fb6f8b784c2752863f4f1f20c656f76fb ebd7845ca0471d251a1cb48d84eb165aff5b7123 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ae7a2a3fb6f8b784c2752863f4f1f20c656f76fb 97542f15dc4cf6cd3fdc035e482dca54246ddf48 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ae7a2a3fb6f8b784c2752863f4f1f20c656f76fb 32bdca80aa81c2cb906f50a88b220ce1ecdc5e6e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ae7a2a3fb6f8b784c2752863f4f1f20c656f76fb 9285e4070df2c40585c3d7ec9571faa7a2b97e17 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.6","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.6 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.178 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.145 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.97 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.40 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc4 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/x86/kvm/lapic.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"038b9ce6fafda1babd1e33d52cbc6039747a6d87","status":"affected","version":"ae7a2a3fb6f8b784c2752863f4f1f20c656f76fb","versionType":"git"},{"lessThan":"8e9f7a95279bf608cf4c331ed89612e28c04564f","status":"affected","version":"ae7a2a3fb6f8b784c2752863f4f1f20c656f76fb","versionType":"git"},{"lessThan":"ebd7845ca0471d251a1cb48d84eb165aff5b7123","status":"affected","version":"ae7a2a3fb6f8b784c2752863f4f1f20c656f76fb","versionType":"git"},{"lessThan":"97542f15dc4cf6cd3fdc035e482dca54246ddf48","status":"affected","version":"ae7a2a3fb6f8b784c2752863f4f1f20c656f76fb","versionType":"git"},{"lessThan":"32bdca80aa81c2cb906f50a88b220ce1ecdc5e6e","status":"affected","version":"ae7a2a3fb6f8b784c2752863f4f1f20c656f76fb","versionType":"git"},{"lessThan":"9285e4070df2c40585c3d7ec9571faa7a2b97e17","status":"affected","version":"ae7a2a3fb6f8b784c2752863f4f1f20c656f76fb","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["arch/x86/kvm/lapic.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.6"},{"lessThan":"3.6","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.97","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.40","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc4","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.178","versionStartIncluding":"3.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.145","versionStartIncluding":"3.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.97","versionStartIncluding":"3.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.40","versionStartIncluding":"3.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"3.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc4","versionStartIncluding":"3.6","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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 ]---"}],"providerMetadata":{"dateUpdated":"2026-08-15T05:55:07.765Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/038b9ce6fafda1babd1e33d52cbc6039747a6d87"},{"url":"https://git.kernel.org/stable/c/8e9f7a95279bf608cf4c331ed89612e28c04564f"},{"url":"https://git.kernel.org/stable/c/ebd7845ca0471d251a1cb48d84eb165aff5b7123"},{"url":"https://git.kernel.org/stable/c/97542f15dc4cf6cd3fdc035e482dca54246ddf48"},{"url":"https://git.kernel.org/stable/c/32bdca80aa81c2cb906f50a88b220ce1ecdc5e6e"},{"url":"https://git.kernel.org/stable/c/9285e4070df2c40585c3d7ec9571faa7a2b97e17"}],"title":"KVM: x86: Ignore pending PV EOI if the vCPU has since disabled PV EOIs","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-72284","datePublished":"2026-08-15T05:55:07.765Z","dateReserved":"2026-08-09T03:40:39.917Z","dateUpdated":"2026-08-15T05:55:07.765Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:21:59","lastModifiedDate":"2026-08-15 06:21:59","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"72284","Ordinal":"1","Title":"KVM: x86: Ignore pending PV EOI if the vCPU has since disabled P","CVE":"CVE-2026-72284","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"72284","Ordinal":"1","NoteData":"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 ]---","Type":"Description","Title":"KVM: x86: Ignore pending PV EOI if the vCPU has since disabled P"}]}}}