{"api_version":"1","generated_at":"2026-10-23T20:58:57+00:00","cve":"CVE-2026-98877","urls":{"html":"https://cve.report/CVE-2026-98877","api":"https://cve.report/api/cve/CVE-2026-98877.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98877","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98877"},"summary":{"title":"irqchip/gic-v4: Don't advertise VLPIs if no ITS is probed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/gic-v4: Don't advertise VLPIs if no ITS is probed\n\nWhen accidentally setting “kvm-arm.vgic_v4_enable=1” on a system that has\nno MSI controller device tree node and GICv4, it results a panic as\n“gic_domain” is NULL and the kernel attempts to access it.\n\n    Unable to handle kernel NULL pointer dereference at virtual address 0000000000000028\n    Mem abort info:\n      ESR = 0x0000000096000006\n\n    CPU: 1 UID: 0 PID: 295 Comm: lkvm-static Not tainted 7.1.0-rc4-ge3f15ad3970e #5 PREEMPT\n    Hardware name: linux,dummy-virt (DT)\n    pstate: 81402005 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)\n    pc : __irq_domain_instantiate+0x1d4/0x578\n    lr : __irq_domain_instantiate+0x1cc/0x578\n\nSet vLPI support to false at init time if the host has no ITS, so it\npropagates properly to kvm_vgic_global_state.has_gicv4.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-23 12:18:21","updated_at":"2026-10-23 12:18:21"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/ab233119a19716b8f33e73ea7e092e0eb353cfbf","name":"https://git.kernel.org/stable/c/ab233119a19716b8f33e73ea7e092e0eb353cfbf","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e79934064be85fc9a3a6434da857307d8b78e33d","name":"https://git.kernel.org/stable/c/e79934064be85fc9a3a6434da857307d8b78e33d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3e4cae9f1472ba3c9fe87edee24074618b51f537","name":"https://git.kernel.org/stable/c/3e4cae9f1472ba3c9fe87edee24074618b51f537","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4761493dd663443f7353c184e6fa16e1cb3ac5a1","name":"https://git.kernel.org/stable/c/4761493dd663443f7353c184e6fa16e1cb3ac5a1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e61654fbc3bc5d07ec9fafe29f33e19b2b5d0fd5","name":"https://git.kernel.org/stable/c/e61654fbc3bc5d07ec9fafe29f33e19b2b5d0fd5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c8a911b3b07baa0aeb3dbc4e16a4670bd21bed40","name":"https://git.kernel.org/stable/c/c8a911b3b07baa0aeb3dbc4e16a4670bd21bed40","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a2508b8855acc96abe69be73b41b672f1ef12516","name":"https://git.kernel.org/stable/c/a2508b8855acc96abe69be73b41b672f1ef12516","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98877","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98877","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 3e4cae9f1472ba3c9fe87edee24074618b51f537 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 a2508b8855acc96abe69be73b41b672f1ef12516 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 e79934064be85fc9a3a6434da857307d8b78e33d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 4761493dd663443f7353c184e6fa16e1cb3ac5a1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ab233119a19716b8f33e73ea7e092e0eb353cfbf git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 c8a911b3b07baa0aeb3dbc4e16a4670bd21bed40 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 e61654fbc3bc5d07ec9fafe29f33e19b2b5d0fd5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.10.271 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.15.222 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.1.189 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.6.158 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.12.111 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.18.53 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.271 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.222 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.189 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.158 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.111 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.53 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * 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":["drivers/irqchip/irq-gic-v3-its.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3e4cae9f1472ba3c9fe87edee24074618b51f537","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"a2508b8855acc96abe69be73b41b672f1ef12516","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"e79934064be85fc9a3a6434da857307d8b78e33d","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"4761493dd663443f7353c184e6fa16e1cb3ac5a1","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"ab233119a19716b8f33e73ea7e092e0eb353cfbf","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"c8a911b3b07baa0aeb3dbc4e16a4670bd21bed40","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"e61654fbc3bc5d07ec9fafe29f33e19b2b5d0fd5","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"5.10.271","status":"affected","version":"0","versionType":"semver"},{"lessThan":"5.15.222","status":"affected","version":"0","versionType":"semver"},{"lessThan":"6.1.189","status":"affected","version":"0","versionType":"semver"},{"lessThan":"6.6.158","status":"affected","version":"0","versionType":"semver"},{"lessThan":"6.12.111","status":"affected","version":"0","versionType":"semver"},{"lessThan":"6.18.53","status":"affected","version":"0","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/irqchip/irq-gic-v3-its.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.271","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.222","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.189","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.158","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.111","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.53","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.271","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.222","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.189","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.158","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.111","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.53","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/gic-v4: Don't advertise VLPIs if no ITS is probed\n\nWhen accidentally setting “kvm-arm.vgic_v4_enable=1” on a system that has\nno MSI controller device tree node and GICv4, it results a panic as\n“gic_domain” is NULL and the kernel attempts to access it.\n\n    Unable to handle kernel NULL pointer dereference at virtual address 0000000000000028\n    Mem abort info:\n      ESR = 0x0000000096000006\n\n    CPU: 1 UID: 0 PID: 295 Comm: lkvm-static Not tainted 7.1.0-rc4-ge3f15ad3970e #5 PREEMPT\n    Hardware name: linux,dummy-virt (DT)\n    pstate: 81402005 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)\n    pc : __irq_domain_instantiate+0x1d4/0x578\n    lr : __irq_domain_instantiate+0x1cc/0x578\n\nSet vLPI support to false at init time if the host has no ITS, so it\npropagates properly to kvm_vgic_global_state.has_gicv4."}],"providerMetadata":{"dateUpdated":"2026-10-23T11:37:23.678Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/3e4cae9f1472ba3c9fe87edee24074618b51f537"},{"url":"https://git.kernel.org/stable/c/a2508b8855acc96abe69be73b41b672f1ef12516"},{"url":"https://git.kernel.org/stable/c/e79934064be85fc9a3a6434da857307d8b78e33d"},{"url":"https://git.kernel.org/stable/c/4761493dd663443f7353c184e6fa16e1cb3ac5a1"},{"url":"https://git.kernel.org/stable/c/ab233119a19716b8f33e73ea7e092e0eb353cfbf"},{"url":"https://git.kernel.org/stable/c/c8a911b3b07baa0aeb3dbc4e16a4670bd21bed40"},{"url":"https://git.kernel.org/stable/c/e61654fbc3bc5d07ec9fafe29f33e19b2b5d0fd5"}],"title":"irqchip/gic-v4: Don't advertise VLPIs if no ITS is probed","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98877","datePublished":"2026-10-23T11:37:23.678Z","dateReserved":"2026-09-25T10:25:14.377Z","dateUpdated":"2026-10-23T11:37:23.678Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-23 12:18:21","lastModifiedDate":"2026-10-23 12:18:21","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98877","Ordinal":"1","Title":"irqchip/gic-v4: Don't advertise VLPIs if no ITS is probed","CVE":"CVE-2026-98877","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98877","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/gic-v4: Don't advertise VLPIs if no ITS is probed\n\nWhen accidentally setting “kvm-arm.vgic_v4_enable=1” on a system that has\nno MSI controller device tree node and GICv4, it results a panic as\n“gic_domain” is NULL and the kernel attempts to access it.\n\n    Unable to handle kernel NULL pointer dereference at virtual address 0000000000000028\n    Mem abort info:\n      ESR = 0x0000000096000006\n\n    CPU: 1 UID: 0 PID: 295 Comm: lkvm-static Not tainted 7.1.0-rc4-ge3f15ad3970e #5 PREEMPT\n    Hardware name: linux,dummy-virt (DT)\n    pstate: 81402005 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)\n    pc : __irq_domain_instantiate+0x1d4/0x578\n    lr : __irq_domain_instantiate+0x1cc/0x578\n\nSet vLPI support to false at init time if the host has no ITS, so it\npropagates properly to kvm_vgic_global_state.has_gicv4.","Type":"Description","Title":"irqchip/gic-v4: Don't advertise VLPIs if no ITS is probed"}]}}}