{"id":"CVE-2024-50192","state":"PUBLISHED","title":"irqchip/gic-v4: Don't allow a VMOVP on a dying VPE","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/gic-v4: Don't allow a VMOVP on a dying VPE\n\nKunkun Jiang reported that there is a small window of opportunity for\nuserspace to force a change of affinity for a VPE while the VPE has already\nbeen unmapped, but the corresponding doorbell interrupt still visible in\n/proc/irq/.\n\nPlug the race by checking the value of vmapp_count, which tracks whether\nthe VPE is mapped ot not, and returning an error in this case.\n\nThis involves making vmapp_count common to both GICv4.1 and its v4.0\nancestor.","publishedAt":"2024-11-08T05:54:07.535Z","updatedAt":"2026-05-11T20:47:12.549Z","severity":{"score":4.7,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux 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Don't allow a VMOVP on a dying VPE","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/gic-v4: Don't allow a VMOVP on a dying VPE\n\nKunkun Jiang reported that there is a small window of opportunity for\nuserspace to force a change of affinity for a VPE while the VPE has already\nbeen unmapped, but the corresponding doorbell interrupt still visible in\n/proc/irq/.\n\nPlug the race by checking the value of vmapp_count, which tracks whether\nthe VPE is mapped ot not, and returning an error in this case.\n\nThis involves making vmapp_count common to both GICv4.1 and its 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Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T22:26:46.124Z"}}]}}}