CVE-2023-52766

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Otherwise out of bounds access\nwill occur from rings->headers[i] access when i >= number of allocated\nring headers."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable path is the platform driver's hard-IRQ handler (i3c_hci_irq_handler \u2192 hci_dma_irq_handler), reached when local I3C/I2C bus activity raises host-controller ring interrupts. There is no network or adjacent-link packet path into this HCI master driver.\nAC:L - On multi-ring-capable HCI hardware the interrupt mask can present bits beyond the single software-enabled ring, and a local attacker can reliably induce those IRQs via I3C/I2C client transfers; no attacker-uncontrollable race or layout precondition is required to hit the OOB once those bits are set.\nPR:L - The IRQ handler itself has no capability check, and bus traffic that raises ring interrupts is reachable through ordinary local I3C/I2C client paths (sensors, i2c-adapter users) without real init-namespace root or CAP_SYS_MODULE.\nUI:N - Once the attacker can generate the relevant bus traffic, the host controller delivers the interrupt and the handler runs with no separate victim action required.\nS:U - The OOB access and resulting MMIO/memory corruption stay inside the host kernel's I3C HCI authority and do not cross a VM, IOMMU, or sandbox boundary.\nC:H - The handler out-of-bounds-reads adjacent heap as struct hci_rh_data and then performs MMIO reads and IBI/xfer processing through those corrupted pointers, which is a high-impact disclosure/memory-corruption read primitive.\nI:H - The same corrupted rh->regs is used for rh_reg_write(), and hci_dma_xfer_done()/hci_dma_process_ibi() write through OOB-sourced pointers, yielding an arbitrary MMIO/memory write primitive exploitable for control-flow hijacking.\nA:H - Dereferencing an out-of-bounds or garbage rh in hard-IRQ context causes kernel oops/panic or persistent controller failure, which is full availability loss."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/i3c/master/mipi-i3c-hci/dma.c"], "versions": [{"version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "lessThan": "d23ad76f240c0f597b7a9eb79905d246f27d40df", "status": "affected", "versionType": "git"}, {"version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "lessThan": "8be39f66915b40d26ea2c18ba84b5c3d5da6809b", "status": "affected", "versionType": "git"}, {"version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "lessThan": "7c2b91b30d74d7c407118ad72502d4ca28af1af6", "status": "affected", "versionType": "git"}, {"version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "lessThan": "4c86cb2321bd9c72d3b945ce7f747961beda8e65", "status": "affected", "versionType": "git"}, {"version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "lessThan": "45a832f989e520095429589d5b01b0c65da9b574", "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/i3c/master/mipi-i3c-hci/dma.c"], "versions": [{"version": "5.0", "status": "affected"}, {"version": "0", "lessThan": "5.0", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.140", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.64", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.5.13", "lessThanOrEqual": "6.5.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.3", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.7", "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": "5.0", "versionEndExcluding": "5.15.140"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.1.64"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.5.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.6.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.7"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/d23ad76f240c0f597b7a9eb79905d246f27d40df"}, {"url": "https://git.kernel.org/stable/c/8be39f66915b40d26ea2c18ba84b5c3d5da6809b"}, {"url": "https://git.kernel.org/stable/c/7c2b91b30d74d7c407118ad72502d4ca28af1af6"}, {"url": "https://git.kernel.org/stable/c/4c86cb2321bd9c72d3b945ce7f747961beda8e65"}, {"url": "https://git.kernel.org/stable/c/45a832f989e520095429589d5b01b0c65da9b574"}], "title": "i3c: mipi-i3c-hci: Fix out of bounds access in hci_dma_irq_handler", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-52766", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-05-22T18:26:12.286527Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:23:28.810Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T23:11:35.533Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/d23ad76f240c0f597b7a9eb79905d246f27d40df", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/8be39f66915b40d26ea2c18ba84b5c3d5da6809b", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/7c2b91b30d74d7c407118ad72502d4ca28af1af6", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4c86cb2321bd9c72d3b945ce7f747961beda8e65", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/45a832f989e520095429589d5b01b0c65da9b574", "tags": ["x_transferred"]}]}]}}

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There is no network or adjacent-link packet path into this HCI master driver.\nAC:L - On multi-ring-capable HCI hardware the interrupt mask can present bits beyond the single software-enabled ring, and a local attacker can reliably induce those IRQs via I3C/I2C client transfers; no attacker-uncontrollable race or layout precondition is required to hit the OOB once those bits are set.\nPR:L - The IRQ handler itself has no capability check, and bus traffic that raises ring interrupts is reachable through ordinary local I3C/I2C client paths (sensors, i2c-adapter users) without real init-namespace root or CAP_SYS_MODULE.\nUI:N - Once the attacker can generate the relevant bus traffic, the host controller delivers the interrupt and the handler runs with no separate victim action required.\nS:U - The OOB access and resulting MMIO/memory corruption stay inside the host kernel's I3C HCI authority and do not cross a VM, IOMMU, or sandbox boundary.\nC:H - The handler out-of-bounds-reads adjacent heap as struct hci_rh_data and then performs MMIO reads and IBI/xfer processing through those corrupted pointers, which is a high-impact disclosure/memory-corruption read primitive.\nI:H - The same corrupted rh->regs is used for rh_reg_write(), and hci_dma_xfer_done()/hci_dma_process_ibi() write through OOB-sourced pointers, yielding an arbitrary MMIO/memory write primitive exploitable for control-flow hijacking.\nA:H - Dereferencing an out-of-bounds or garbage rh in hard-IRQ context causes kernel oops/panic or persistent controller failure, which is full availability loss."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "lessThan": "d23ad76f240c0f597b7a9eb79905d246f27d40df", "versionType": "git"}, {"status": "affected", "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "lessThan": "8be39f66915b40d26ea2c18ba84b5c3d5da6809b", "versionType": "git"}, {"status": "affected", "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "lessThan": "7c2b91b30d74d7c407118ad72502d4ca28af1af6", "versionType": "git"}, {"status": "affected", "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "lessThan": "4c86cb2321bd9c72d3b945ce7f747961beda8e65", "versionType": "git"}, {"status": "affected", "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "lessThan": "45a832f989e520095429589d5b01b0c65da9b574", "versionType": "git"}], "programFiles": ["drivers/i3c/master/mipi-i3c-hci/dma.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.0"}, {"status": "unaffected", "version": "0", "lessThan": "5.0", "versionType": "semver"}, {"status": "unaffected", "version": "5.15.140", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.64", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"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/i3c/master/mipi-i3c-hci/dma.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/d23ad76f240c0f597b7a9eb79905d246f27d40df"}, {"url": "https://git.kernel.org/stable/c/8be39f66915b40d26ea2c18ba84b5c3d5da6809b"}, {"url": "https://git.kernel.org/stable/c/7c2b91b30d74d7c407118ad72502d4ca28af1af6"}, {"url": "https://git.kernel.org/stable/c/4c86cb2321bd9c72d3b945ce7f747961beda8e65"}, {"url": "https://git.kernel.org/stable/c/45a832f989e520095429589d5b01b0c65da9b574"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni3c: mipi-i3c-hci: Fix out of bounds access in hci_dma_irq_handler\n\nDo not loop over ring headers in hci_dma_irq_handler() that are not\nallocated and enabled in hci_dma_init(). 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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/i3c/master/mipi-i3c-hci/dma.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "d23ad76f240c0f597b7a9eb79905d246f27d40df", "status": "affected", "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "versionType": "git"}, {"lessThan": "8be39f66915b40d26ea2c18ba84b5c3d5da6809b", "status": "affected", "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "versionType": "git"}, {"lessThan": "7c2b91b30d74d7c407118ad72502d4ca28af1af6", "status": "affected", "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "versionType": "git"}, {"lessThan": "4c86cb2321bd9c72d3b945ce7f747961beda8e65", "status": "affected", "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "versionType": "git"}, {"lessThan": "45a832f989e520095429589d5b01b0c65da9b574", "status": "affected", "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/i3c/master/mipi-i3c-hci/dma.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.0"}, {"lessThan": "5.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.140", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.64", "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"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "946A5BB4-D1C5-4C8D-962C-9C300A2CAA80", "versionEndExcluding": "5.15.140", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8D7C884A-CAA2-4EA2-9FEB-5CE776D7B05F", "versionEndExcluding": "6.1.64", "versionStartIncluding": "5.16", "vulnerable": true}, {"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\ni3c: mipi-i3c-hci: Fix out of bounds access in hci_dma_irq_handler\n\nDo not loop over ring headers in hci_dma_irq_handler() that are not\nallocated and enabled in hci_dma_init(). Otherwise out of bounds access\nwill occur from rings->headers[i] access when i >= number of allocated\nring headers."}, {"lang": "es", "value": " En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: i3c: mipi-i3c-hci: corrige el acceso fuera de los l\u00edmites en hci_dma_irq_handler. No realice bucles sobre encabezados de anillo en hci_dma_irq_handler() que no est\u00e9n asignados y habilitados en hci_dma_init(). De lo contrario, el acceso fuera de los l\u00edmites se producir\u00e1 desde el acceso de anillos->encabezados[i] cuando i >= n\u00famero de encabezados de anillo asignados."}], "id": "CVE-2023-52766", "lastModified": "2026-08-04T10:18:40.477", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-52766", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-05-22T18:26:12.286527Z", "version": "2.0.3"}}]}, "published": "2024-05-21T16:15:15.847", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/45a832f989e520095429589d5b01b0c65da9b574"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4c86cb2321bd9c72d3b945ce7f747961beda8e65"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7c2b91b30d74d7c407118ad72502d4ca28af1af6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8be39f66915b40d26ea2c18ba84b5c3d5da6809b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d23ad76f240c0f597b7a9eb79905d246f27d40df"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/45a832f989e520095429589d5b01b0c65da9b574"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4c86cb2321bd9c72d3b945ce7f747961beda8e65"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7c2b91b30d74d7c407118ad72502d4ca28af1af6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8be39f66915b40d26ea2c18ba84b5c3d5da6809b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d23ad76f240c0f597b7a9eb79905d246f27d40df"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: i3c: mipi-i3c-hci: Fix out of bounds access in hci_dma_irq_handler", "id": "2282687", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2282687"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ni3c: mipi-i3c-hci: Fix out of bounds access in hci_dma_irq_handler\nDo not loop over ring headers in hci_dma_irq_handler() that are not\nallocated and enabled in hci_dma_init(). Otherwise out of bounds access\nwill occur from rings->headers[i] access when i >= number of allocated\nring headers."], "name": "CVE-2023-52766", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not 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-2023-52766\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52766\nhttps://lore.kernel.org/linux-cve-announce/2024052149-CVE-2023-52766-2ae1@gregkh/T"], "statement": "No Red Hat products are affected by this vulnerability.", "threat_severity": "Moderate"}

{}