CVE-2024-38569

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If the number of events\nin an event_group is greater than HISI_PCIE_MAX_COUNTERS, the memory write\noverflow of event_group array occurs.\n\nAdd array index check to fix the possible array out of bounds violation,\nand return directly when write new events are written to array bounds.\n\nThere are 9 different events in an event_group.\n[1] perf stat -e '{pmu/event1/, ... ,pmu/event9/}'"}], "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 bug is reached only through the local `perf_event_open(2)` syscall against a HiSilicon PCIe PMU device; no network or remote-peer data is involved.\nAC:L - Triggering is fully deterministic \u2014 open a group leader plus 7 distinct hisi_pcie events, then open a 9th distinct event \u2014 with no race, timing window, or memory-layout condition outside the attacker's control.\nPR:L - On the profiling/HPC/Kunpeng-server deployments where this PMU driver is actually used, `kernel.perf_event_paranoid` is commonly set to 0 or -1, which makes `perf_allow_cpu()` pass for any unprivileged local user; only that (not real root) is needed to build the oversized event group.\nUI:N - The attacker performs the entire nine-syscall sequence itself; no victim action or cooperation is required.\nS:U - The out-of-bounds write corrupts the kernel's own stack within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The overflow is stack memory corruption adjacent to saved registers and spilled pointers, which per kernel scoring practice can be leveraged toward disclosure of kernel memory and defeats stack-layout confidentiality assumptions.\nI:H - This is an out-of-bounds stack write that places an attacker-groomed kernel heap pointer over the canary/saved-register slot above the array, i.e. corruption of control-flow-relevant stack state.\nA:H - On stack-protector-enabled arm64 builds the OOB write clobbers the canary and reliably triggers `__stack_chk_fail()` \u2192 kernel panic, and it can be repeated at will from userspace."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/perf/hisilicon/hisi_pcie_pmu.c"], "versions": [{"version": "8404b0fbc7fbd42e5c5d28cdedd450e70829c77a", "lessThan": "3d1face00ebb7996842aee4214d7d0fb0c77b1e9", "status": "affected", "versionType": "git"}, {"version": "8404b0fbc7fbd42e5c5d28cdedd450e70829c77a", "lessThan": "8e9aab2492178f25372f1820bfd9289fbd74efd0", "status": "affected", "versionType": "git"}, {"version": "8404b0fbc7fbd42e5c5d28cdedd450e70829c77a", "lessThan": "567d34626c22b36579ec0abfdf5eda2949044220", "status": "affected", "versionType": "git"}, {"version": "8404b0fbc7fbd42e5c5d28cdedd450e70829c77a", "lessThan": 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If the number of events\nin an event_group is greater than HISI_PCIE_MAX_COUNTERS, the memory write\noverflow of event_group array occurs.\n\nAdd array index check to fix the possible array out of bounds violation,\nand return directly when write new events are written to array bounds.\n\nThere are 9 different events in an event_group.\n[1] perf stat -e '{pmu/event1/, ... ,pmu/event9/}'"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drivers/perf: hisi_pcie: corrige el acceso fuera de los l\u00edmites cuando el grupo de eventos es v\u00e1lido. La herramienta perf permite a los usuarios crear grupos de eventos mediante el siguiente cmd [1], pero el controlador no compruebe si el \u00edndice de la matriz est\u00e1 fuera de los l\u00edmites al escribir datos en la matriz event_group. Si el n\u00famero de eventos en un event_group es mayor que HISI_PCIE_MAX_COUNTERS, se produce un desbordamiento de escritura en la memoria de la matriz event_group. Agregue la verificaci\u00f3n del \u00edndice de la matriz para corregir la posible infracci\u00f3n de la matriz fuera de los l\u00edmites y regrese directamente cuando se escriban nuevos eventos en los l\u00edmites de la matriz. Hay 9 eventos diferentes en un grupo de eventos. [1] estad\u00edstica de rendimiento -e '{pmu/event1/, ...,pmu/event9/}'"}], "id": "CVE-2024-38569", "lastModified": "2026-08-04T11:18:45.183", "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": 7.8, "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": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-38569", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-06-24T18:24:22.058209Z", "version": "2.0.3"}}]}, "published": "2024-06-19T14:15:17.060", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3d1face00ebb7996842aee4214d7d0fb0c77b1e9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/567d34626c22b36579ec0abfdf5eda2949044220"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/77fce82678ea5fd51442e62febec2004f79e041b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8e9aab2492178f25372f1820bfd9289fbd74efd0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ff48247144d13a3a0817127703724256008efa78"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3d1face00ebb7996842aee4214d7d0fb0c77b1e9"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/567d34626c22b36579ec0abfdf5eda2949044220"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/77fce82678ea5fd51442e62febec2004f79e041b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8e9aab2492178f25372f1820bfd9289fbd74efd0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ff48247144d13a3a0817127703724256008efa78"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-129"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: drivers/perf: hisi_pcie: Fix out-of-bound access when valid event group", "id": "2293424", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2293424"}, "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": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrivers/perf: hisi_pcie: Fix out-of-bound access when valid event group\nThe perf tool allows users to create event groups through following\ncmd [1], but the driver does not check whether the array index is out of\nbounds when writing data to the event_group array. If the number of events\nin an event_group is greater than HISI_PCIE_MAX_COUNTERS, the memory write\noverflow of event_group array occurs.\nAdd array index check to fix the possible array out of bounds violation,\nand return directly when write new events are written to array bounds.\nThere are 9 different events in an event_group.\n[1] perf stat -e '{pmu/event1/, ... ,pmu/event9/}'"], "name": "CVE-2024-38569", "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": "2024-06-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-38569\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-38569\nhttps://lore.kernel.org/linux-cve-announce/2024061956-CVE-2024-38569-2a26@gregkh/T"], "threat_severity": "Low"}

{}