{"id":"CVE-2026-98877","summary":"irqchip/gic-v4: Don't advertise VLPIs if no ITS is probed","details":"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.","modified":"2026-10-28T02:33:14.031557728Z","published":"2026-10-23T11:37:23.678Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98877.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3e4cae9f1472ba3c9fe87edee24074618b51f537"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4761493dd663443f7353c184e6fa16e1cb3ac5a1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a2508b8855acc96abe69be73b41b672f1ef12516"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ab233119a19716b8f33e73ea7e092e0eb353cfbf"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c8a911b3b07baa0aeb3dbc4e16a4670bd21bed40"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e61654fbc3bc5d07ec9fafe29f33e19b2b5d0fd5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e79934064be85fc9a3a6434da857307d8b78e33d"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98877.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98877"},{"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":"a75460547e13c99762c2f9dbfcdd13ad416f91c5"},{"fixed":"3e4cae9f1472ba3c9fe87edee24074618b51f537"},{"fixed":"a2508b8855acc96abe69be73b41b672f1ef12516"},{"fixed":"e79934064be85fc9a3a6434da857307d8b78e33d"},{"fixed":"4761493dd663443f7353c184e6fa16e1cb3ac5a1"},{"fixed":"ab233119a19716b8f33e73ea7e092e0eb353cfbf"},{"fixed":"c8a911b3b07baa0aeb3dbc4e16a4670bd21bed40"},{"fixed":"e61654fbc3bc5d07ec9fafe29f33e19b2b5d0fd5"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-98877.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.15.0"},{"fixed":"5.10.271"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.222"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.189"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.158"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.111"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.53"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-98877.json"}}],"schema_version":"1.9.2"}