{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72283", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.917Z", "datePublished": "2026-08-15T05:55:06.959Z", "dateUpdated": "2026-08-15T05:55:06.959Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-15T05:55:06.959Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: Nullify irqfd->producer if updating IRTE for bypass fails\n\nNullify irqfd->producer if updating the IRTE for bypass fails, as leaving a\ndangling pointer will result in a use-after-free if the irqfd is reachable\nthrough KVM's routing, but the producer is freed separately. E.g. for VFIO\nPCI, the producer is embedded in struct \"vfio_pci_irq_ctx\" and freed when\nthe vector is disabled, which can happen independent of routing updates.\n\n[sean: drop PPC change, massage changelog]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/x86/kvm/irq.c"], "versions": [{"version": "77e1b8332d1d7aa786f7515e9bd4055def6a1e06", "lessThan": "d1379888cc4230bac647ec24ab83306afbd03e88", "status": "affected", "versionType": "git"}, {"version": "77e1b8332d1d7aa786f7515e9bd4055def6a1e06", "lessThan": "d5560b6569cd05ba72c6b33427fbabc6ec46b8cf", "status": "affected", "versionType": "git"}, {"version": "77e1b8332d1d7aa786f7515e9bd4055def6a1e06", "lessThan": "ed446e8aa894883c08892cfee69782fdf8f6c3ca", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/x86/kvm/irq.c"], "versions": [{"version": "6.17", "status": "affected"}, {"version": "0", "lessThan": "6.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc4", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.2-rc4"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/d1379888cc4230bac647ec24ab83306afbd03e88"}, {"url": "https://git.kernel.org/stable/c/d5560b6569cd05ba72c6b33427fbabc6ec46b8cf"}, {"url": "https://git.kernel.org/stable/c/ed446e8aa894883c08892cfee69782fdf8f6c3ca"}], "title": "KVM: x86: Nullify irqfd->producer if updating IRTE for bypass fails", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["arch/x86/kvm/irq.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "d1379888cc4230bac647ec24ab83306afbd03e88", "status": "affected", "version": "77e1b8332d1d7aa786f7515e9bd4055def6a1e06", "versionType": "git"}, {"lessThan": "d5560b6569cd05ba72c6b33427fbabc6ec46b8cf", "status": "affected", "version": "77e1b8332d1d7aa786f7515e9bd4055def6a1e06", "versionType": "git"}, {"lessThan": "ed446e8aa894883c08892cfee69782fdf8f6c3ca", "status": "affected", "version": "77e1b8332d1d7aa786f7515e9bd4055def6a1e06", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["arch/x86/kvm/irq.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.17"}, {"lessThan": "6.17", "status": "unaffected", "version": "0", "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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: Nullify irqfd->producer if updating IRTE for bypass fails\n\nNullify irqfd->producer if updating the IRTE for bypass fails, as leaving a\ndangling pointer will result in a use-after-free if the irqfd is reachable\nthrough KVM's routing, but the producer is freed separately. E.g. for VFIO\nPCI, the producer is embedded in struct \"vfio_pci_irq_ctx\" and freed when\nthe vector is disabled, which can happen independent of routing updates.\n\n[sean: drop PPC change, massage changelog]"}], "id": "CVE-2026-72283", "lastModified": "2026-08-15T06:21:59.037", "metrics": {}, "published": "2026-08-15T06:21:59.037", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d1379888cc4230bac647ec24ab83306afbd03e88"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d5560b6569cd05ba72c6b33427fbabc6ec46b8cf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ed446e8aa894883c08892cfee69782fdf8f6c3ca"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

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