CVE-2026-98877

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98877", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.377Z", "datePublished": "2026-10-23T11:37:23.678Z", "dateUpdated": "2026-10-26T06:55:59.697Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-26T06:55:59.697Z"}, "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 \u201ckvm-arm.vgic_v4_enable=1\u201d on a system that has\nno MSI controller device tree node and GICv4, it results a panic as\n\u201cgic_domain\u201d 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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/irqchip/irq-gic-v3-its.c"], "versions": [{"version": "a75460547e13c99762c2f9dbfcdd13ad416f91c5", "lessThan": "3e4cae9f1472ba3c9fe87edee24074618b51f537", "status": "affected", "versionType": "git"}, {"version": "a75460547e13c99762c2f9dbfcdd13ad416f91c5", "lessThan": "a2508b8855acc96abe69be73b41b672f1ef12516", "status": "affected", "versionType": "git"}, {"version": "a75460547e13c99762c2f9dbfcdd13ad416f91c5", "lessThan": "e79934064be85fc9a3a6434da857307d8b78e33d", "status": "affected", "versionType": "git"}, {"version": "a75460547e13c99762c2f9dbfcdd13ad416f91c5", "lessThan": "4761493dd663443f7353c184e6fa16e1cb3ac5a1", "status": "affected", "versionType": "git"}, {"version": "a75460547e13c99762c2f9dbfcdd13ad416f91c5", "lessThan": "ab233119a19716b8f33e73ea7e092e0eb353cfbf", "status": "affected", "versionType": "git"}, {"version": "a75460547e13c99762c2f9dbfcdd13ad416f91c5", "lessThan": "c8a911b3b07baa0aeb3dbc4e16a4670bd21bed40", "status": "affected", "versionType": "git"}, {"version": "a75460547e13c99762c2f9dbfcdd13ad416f91c5", "lessThan": "e61654fbc3bc5d07ec9fafe29f33e19b2b5d0fd5", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/irqchip/irq-gic-v3-its.c"], "versions": [{"version": "4.15", "status": "affected"}, {"version": "0", "lessThan": "4.15", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.271", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.222", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.189", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.158", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.111", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.53", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": 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"7.2"}]}]}], "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"}}}}

{}

{"affected": [{"affectedData": [{"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": "a75460547e13c99762c2f9dbfcdd13ad416f91c5", "versionType": "git"}, {"lessThan": "a2508b8855acc96abe69be73b41b672f1ef12516", "status": "affected", "version": "a75460547e13c99762c2f9dbfcdd13ad416f91c5", "versionType": "git"}, {"lessThan": "e79934064be85fc9a3a6434da857307d8b78e33d", "status": "affected", "version": "a75460547e13c99762c2f9dbfcdd13ad416f91c5", "versionType": "git"}, {"lessThan": "4761493dd663443f7353c184e6fa16e1cb3ac5a1", "status": "affected", "version": "a75460547e13c99762c2f9dbfcdd13ad416f91c5", "versionType": "git"}, {"lessThan": "ab233119a19716b8f33e73ea7e092e0eb353cfbf", "status": "affected", "version": "a75460547e13c99762c2f9dbfcdd13ad416f91c5", "versionType": "git"}, {"lessThan": "c8a911b3b07baa0aeb3dbc4e16a4670bd21bed40", "status": "affected", "version": "a75460547e13c99762c2f9dbfcdd13ad416f91c5", "versionType": "git"}, {"lessThan": "e61654fbc3bc5d07ec9fafe29f33e19b2b5d0fd5", "status": "affected", "version": "a75460547e13c99762c2f9dbfcdd13ad416f91c5", "versionType": "git"}]}, {"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": [{"status": "affected", "version": "4.15"}, {"lessThan": "4.15", "status": "unaffected", "version": "0", "versionType": "semver"}, {"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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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 \u201ckvm-arm.vgic_v4_enable=1\u201d on a system that has\nno MSI controller device tree node and GICv4, it results a panic as\n\u201cgic_domain\u201d 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."}], "id": "CVE-2026-98877", "lastModified": "2026-10-26T07:17:12.160", "metrics": {}, "published": "2026-10-23T12:18:21.203", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3e4cae9f1472ba3c9fe87edee24074618b51f537"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4761493dd663443f7353c184e6fa16e1cb3ac5a1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a2508b8855acc96abe69be73b41b672f1ef12516"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ab233119a19716b8f33e73ea7e092e0eb353cfbf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c8a911b3b07baa0aeb3dbc4e16a4670bd21bed40"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e61654fbc3bc5d07ec9fafe29f33e19b2b5d0fd5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e79934064be85fc9a3a6434da857307d8b78e33d"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: irqchip/gic-v4: Don't advertise VLPIs if no ITS is probed", "id": "2559563", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2559563"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nirqchip/gic-v4: Don't advertise VLPIs if no ITS is probed\nWhen accidentally setting \u201ckvm-arm.vgic_v4_enable=1\u201d on a system that has\nno MSI controller device tree node and GICv4, it results a panic as\n\u201cgic_domain\u201d is NULL and the kernel attempts to access it.\nUnable to handle kernel NULL pointer dereference at virtual address 0000000000000028\nMem abort info:\nESR = 0x0000000096000006\nCPU: 1 UID: 0 PID: 295 Comm: lkvm-static Not tainted 7.1.0-rc4-ge3f15ad3970e #5 PREEMPT\nHardware name: linux,dummy-virt (DT)\npstate: 81402005 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)\npc : __irq_domain_instantiate+0x1d4/0x578\nlr : __irq_domain_instantiate+0x1cc/0x578\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.", "A flaw was found in the Linux kernel's ARM Generic Interrupt Controller (GIC) driver. When virtual interrupt support is enabled on a system lacking an Interrupt Translation Service (ITS) controller, the kernel fails to disable virtual interrupt advertising. A local user capable of running a virtual machine under these conditions can trigger an unhandled null pointer dereference, causing a kernel crash and resulting in a Denial of Service (DoS)."], "name": "CVE-2026-98877", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98877\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98877\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98877.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,3e4cae9f1472ba3c9fe87edee24074618b51f537)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,a2508b8855acc96abe69be73b41b672f1ef12516)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,e79934064be85fc9a3a6434da857307d8b78e33d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,4761493dd663443f7353c184e6fa16e1cb3ac5a1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,ab233119a19716b8f33e73ea7e092e0eb353cfbf)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,c8a911b3b07baa0aeb3dbc4e16a4670bd21bed40)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,e61654fbc3bc5d07ec9fafe29f33e19b2b5d0fd5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.10.271)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.15.222)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.1.189)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.6.158)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.12.111)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.18.53)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.271,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.222,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.189,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.158,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.111,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.53,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,3e4cae9f1472ba3c9fe87edee24074618b51f537)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,a2508b8855acc96abe69be73b41b672f1ef12516)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,e79934064be85fc9a3a6434da857307d8b78e33d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,4761493dd663443f7353c184e6fa16e1cb3ac5a1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,ab233119a19716b8f33e73ea7e092e0eb353cfbf)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,c8a911b3b07baa0aeb3dbc4e16a4670bd21bed40)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,e61654fbc3bc5d07ec9fafe29f33e19b2b5d0fd5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.10.271)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.15.222)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.1.189)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.6.158)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.12.111)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.18.53)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.271,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.222,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.189,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.158,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.111,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.53,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-23T14:30:13.403662+00:00", "updated": "2026-10-27T09:15:18.906045+00:00", "vendors": ["linux", "linux$PRODUCT$linux", "linux$PRODUCT$linux_kernel"]}