CVE-2023-52801

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-52801", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-21T15:19:24.247Z", "datePublished": "2024-05-21T15:31:13.700Z", "dateUpdated": "2026-08-05T09:11:28.903Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:11:28.903Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommufd: Fix missing update of domains_itree after splitting iopt_area\n\nIn iopt_area_split(), if the original iopt_area has filled a domain and is\nlinked to domains_itree, pages_nodes have to be properly\nreinserted. Otherwise the domains_itree becomes corrupted and we will UAF."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The bug is reached only through local ioctls on /dev/iommu or /dev/vfio/vfio (VFIO_IOMMU_UNMAP_DMA \u2192 iopt_cut_iova \u2192 iopt_area_split); there is no network or adjacent-network path.\nAC:L - The attacker fully controls the preconditions\u2014disable large pages (VFIO_TYPE1_IOMMU or IOMMU_OPTION_HUGE_PAGES), map an IOVA range with a filled domain, then partial-unmap to force the split\u2014so the domains_itree UAF is deterministic with no race or external condition.\nPR:L - iommufd_fops_open() has no capability check; access is only DAC on /dev/iommu (0660) or /dev/vfio/vfio (0666), routinely granted to unprivileged qemu/libvirt passthrough users, matching other iommufd CVEs scored PR:L.\nUI:N - The full map/set-iommu/partial-unmap sequence is issued by the attacker's own process with no victim interaction required.\nS:C - domains_itree tracks which iopt_areas hold DMA-mapped PFNs in live iommu_domains; leaving a freed area linked and then walking/removing from that tree corrupts IOMMU mapping bookkeeping and can unpin or mis-resolve pages still device-mapped, defeating the DMA isolation boundary.\nC:H - The commit documents a use-after-free on the freed iopt_area still linked in domains_itree; UAF of a sprayable kzalloc object enables arbitrary kernel memory disclosure, and corrupted domain PFN lookup can expose host pages to device DMA.\nI:H - The same UAF/tree corruption yields write primitives via interval-tree remove/insert on attacker-reclaimed memory and broken unpin/unmap of IOMMU-backed pages, enabling control-flow hijack and integrity compromise.\nA:H - Use-after-free on domains_itree walks causes kernel oops/panic, and interval-tree operations on a dangling freed node can hang or crash subsequent iommufd unmap/destroy paths."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iommu/iommufd/io_pagetable.c"], "versions": [{"version": "51fe6141f0f64ae0bbc096a41a07572273e8c0ef", "lessThan": "836db2e7e4565d8218923b3552304a1637e2f28d", "status": "affected", "versionType": "git"}, {"version": "51fe6141f0f64ae0bbc096a41a07572273e8c0ef", "lessThan": "fcb32111f01ddf3cbd04644cde1773428e31de6a", "status": "affected", "versionType": "git"}, {"version": "51fe6141f0f64ae0bbc096a41a07572273e8c0ef", "lessThan": "e7250ab7ca4998fe026f2149805b03e09dc32498", "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/iommu/iommufd/io_pagetable.c"], "versions": [{"version": "6.2", 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"https://git.kernel.org/stable/c/836db2e7e4565d8218923b3552304a1637e2f28d"}, {"url": "https://git.kernel.org/stable/c/fcb32111f01ddf3cbd04644cde1773428e31de6a"}, {"url": "https://git.kernel.org/stable/c/e7250ab7ca4998fe026f2149805b03e09dc32498"}], "title": "iommufd: Fix missing update of domains_itree after splitting iopt_area", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-284", "lang": "en", "description": "CWE-284 Improper Access Control"}]}], "affected": [{"vendor": "linux", "product": "linux_kernel", "cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "versions": [{"version": "51fe6141f0f6", "status": "affected", "lessThan": "836db2e7e456", "versionType": "custom"}]}, {"vendor": "linux", "product": "linux_kernel", "cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "versions": [{"version": "51fe6141f0f6", "status": "affected", "lessThan": 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"CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T19:19:30.119Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T23:11:35.602Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/836db2e7e4565d8218923b3552304a1637e2f28d", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/fcb32111f01ddf3cbd04644cde1773428e31de6a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/e7250ab7ca4998fe026f2149805b03e09dc32498", "tags": ["x_transferred"]}]}]}}

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there is no network or adjacent-network path.\nAC:L - The attacker fully controls the preconditions\u2014disable large pages (VFIO_TYPE1_IOMMU or IOMMU_OPTION_HUGE_PAGES), map an IOVA range with a filled domain, then partial-unmap to force the split\u2014so the domains_itree UAF is deterministic with no race or external condition.\nPR:L - iommufd_fops_open() has no capability check; access is only DAC on /dev/iommu (0660) or /dev/vfio/vfio (0666), routinely granted to unprivileged qemu/libvirt passthrough users, matching other iommufd CVEs scored PR:L.\nUI:N - The full map/set-iommu/partial-unmap sequence is issued by the attacker's own process with no victim interaction required.\nS:C - domains_itree tracks which iopt_areas hold DMA-mapped PFNs in live iommu_domains; leaving a freed area linked and then walking/removing from that tree corrupts IOMMU mapping bookkeeping and can unpin or mis-resolve pages still device-mapped, defeating the DMA isolation boundary.\nC:H - The commit documents a use-after-free on the freed iopt_area still linked in domains_itree; UAF of a sprayable kzalloc object enables arbitrary kernel memory disclosure, and corrupted domain PFN lookup can expose host pages to device DMA.\nI:H - The same UAF/tree corruption yields write primitives via interval-tree remove/insert on attacker-reclaimed memory and broken unpin/unmap of IOMMU-backed pages, enabling control-flow hijack and integrity compromise.\nA:H - Use-after-free on domains_itree walks causes kernel oops/panic, and interval-tree operations on a dangling freed node can hang or crash subsequent iommufd unmap/destroy paths."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "51fe6141f0f64ae0bbc096a41a07572273e8c0ef", "lessThan": "836db2e7e4565d8218923b3552304a1637e2f28d", "versionType": "git"}, {"status": "affected", "version": "51fe6141f0f64ae0bbc096a41a07572273e8c0ef", "lessThan": "fcb32111f01ddf3cbd04644cde1773428e31de6a", "versionType": "git"}, {"status": "affected", "version": "51fe6141f0f64ae0bbc096a41a07572273e8c0ef", "lessThan": "e7250ab7ca4998fe026f2149805b03e09dc32498", "versionType": "git"}], "programFiles": ["drivers/iommu/iommufd/io_pagetable.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.2"}, {"status": "unaffected", "version": "0", "lessThan": "6.2", "versionType": "semver"}, {"status": "unaffected", "version": "6.5.13", "versionType": "semver", "lessThanOrEqual": "6.5.*"}, {"status": "unaffected", "version": "6.6.3", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.7", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/iommu/iommufd/io_pagetable.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/836db2e7e4565d8218923b3552304a1637e2f28d"}, {"url": "https://git.kernel.org/stable/c/fcb32111f01ddf3cbd04644cde1773428e31de6a"}, {"url": "https://git.kernel.org/stable/c/e7250ab7ca4998fe026f2149805b03e09dc32498"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommufd: Fix missing update of domains_itree after splitting iopt_area\n\nIn iopt_area_split(), if the original iopt_area has filled a domain and is\nlinked to domains_itree, pages_nodes have to be properly\nreinserted. 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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/iommu/iommufd/io_pagetable.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "836db2e7e4565d8218923b3552304a1637e2f28d", "status": "affected", "version": "51fe6141f0f64ae0bbc096a41a07572273e8c0ef", "versionType": "git"}, {"lessThan": "fcb32111f01ddf3cbd04644cde1773428e31de6a", "status": "affected", "version": "51fe6141f0f64ae0bbc096a41a07572273e8c0ef", "versionType": "git"}, {"lessThan": "e7250ab7ca4998fe026f2149805b03e09dc32498", "status": "affected", "version": "51fe6141f0f64ae0bbc096a41a07572273e8c0ef", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/iommu/iommufd/io_pagetable.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.2"}, {"lessThan": "6.2", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.5.*", "status": "unaffected", "version": "6.5.13", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.3", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.7", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"affectedData": [{"cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "linux_kernel", "vendor": "linux", "versions": [{"lessThan": "836db2e7e456", "status": "affected", "version": "51fe6141f0f6", "versionType": "custom"}]}, {"cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "linux_kernel", "vendor": "linux", "versions": [{"lessThan": "fcb32111f01d", "status": "affected", "version": "51fe6141f0f6", "versionType": "custom"}]}, {"cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "linux_kernel", "vendor": "linux", "versions": [{"lessThan": "e7250ab7ca49", "status": "affected", "version": "51fe6141f0f6", "versionType": "custom"}]}, {"cpes": ["cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "linux_kernel", "vendor": "linux", "versions": [{"status": "affected", "version": "6..2"}]}, {"cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "linux_kernel", "vendor": "linux", "versions": [{"lessThan": "6.2", "status": "unaffected", "version": "0", "versionType": "custom"}]}, {"cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "linux_kernel", "vendor": "linux", "versions": [{"lessThanOrEqual": "6.5.*", "status": "unaffected", "version": "6.5.13", "versionType": "custom"}]}, {"cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "linux_kernel", "vendor": "linux", "versions": [{"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.3", "versionType": "custom"}]}, {"cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "linux_kernel", "vendor": "linux", "versions": [{"status": "unaffected", "version": "6.7"}]}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "674C4F82-C336-4B49-BF64-1DE422E889C4", "versionEndExcluding": "6.5.13", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B58252FA-A49C-411F-9B28-DC5FE44BC5A0", "versionEndExcluding": "6.6.3", "versionStartIncluding": "6.6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommufd: Fix missing update of domains_itree after splitting iopt_area\n\nIn iopt_area_split(), if the original iopt_area has filled a domain and is\nlinked to domains_itree, pages_nodes have to be properly\nreinserted. Otherwise the domains_itree becomes corrupted and we will UAF."}, {"lang": "es", "value": " En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: iommufd: corrige la actualizaci\u00f3n faltante de domains_itree despu\u00e9s de dividir iopt_area. En iopt_area_split(), si el iopt_area original ha llenado un dominio y est\u00e1 vinculado a domains_itree, los pages_nodes deben reinsertarse correctamente. De lo contrario, domains_itree se corrompe y usaremos UAF."}], "id": "CVE-2023-52801", "lastModified": "2026-08-04T10:18:42.183", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.0, "impactScore": 6.0, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-52801", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-05-24T15:13:11.142898Z", "version": "2.0.3"}}]}, "published": "2024-05-21T16:15:18.603", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/836db2e7e4565d8218923b3552304a1637e2f28d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e7250ab7ca4998fe026f2149805b03e09dc32498"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fcb32111f01ddf3cbd04644cde1773428e31de6a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/836db2e7e4565d8218923b3552304a1637e2f28d"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e7250ab7ca4998fe026f2149805b03e09dc32498"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fcb32111f01ddf3cbd04644cde1773428e31de6a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-284"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2024:6567", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.35.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-09-11T00:00:00Z"}, {"advisory": "RHSA-2024:6567", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.35.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-09-11T00:00:00Z"}], "bugzilla": {"description": "kernel: iommufd: Fix missing update of domains_itree after splitting iopt_area", "id": "2282709", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2282709"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-99", "details": ["In the Linux kernel, the following vulnerability has been resolved:\niommufd: Fix missing update of domains_itree after splitting iopt_area\nIn iopt_area_split(), if the original iopt_area has filled a domain and is\nlinked to domains_itree, pages_nodes have to be properly\nreinserted. Otherwise the domains_itree becomes corrupted and we will UAF."], "name": "CVE-2023-52801", "package_state": [{"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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52801\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52801\nhttps://lore.kernel.org/linux-cve-announce/2024052159-CVE-2023-52801-b287@gregkh/T"], "threat_severity": "Low"}

{}