{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-23155", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-01-11T14:28:41.514Z", "datePublished": "2025-05-01T12:55:41.607Z", "dateUpdated": "2026-05-11T21:14:00.995Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:14:00.995Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: stmmac: Fix accessing freed irq affinity_hint\n\nIn stmmac_request_irq_multi_msi(), a pointer to the stack variable\ncpu_mask is passed to irq_set_affinity_hint(). This value is stored in\nirq_desc->affinity_hint, but once stmmac_request_irq_multi_msi()\nreturns, the pointer becomes dangling.\n\nThe affinity_hint is exposed via procfs with S_IRUGO permissions,\nallowing any unprivileged process to read it. Accessing this stale\npointer can lead to:\n\n- a kernel oops or panic if the referenced memory has been released and\n unmapped, or\n- leakage of kernel data into userspace if the memory is re-used for\n other purposes.\n\nAll platforms that use stmmac with PCI MSI (Intel, Loongson, etc) are\naffected."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/stmicro/stmmac/stmmac_main.c"], "versions": [{"version": "8deec94c6040bb4a767f6e9456a0a44c7f2e713e", "lessThan": "2fbf67ddb8a0d0efc00d2df496a9843ec318d48b", "status": "affected", "versionType": "git"}, {"version": "8deec94c6040bb4a767f6e9456a0a44c7f2e713e", "lessThan": "960dab23f6d405740c537d095f90a4ee9ddd9285", "status": "affected", "versionType": "git"}, {"version": "8deec94c6040bb4a767f6e9456a0a44c7f2e713e", "lessThan": "442312c2a90d60c7a5197246583fa91d9e579985", "status": "affected", "versionType": "git"}, {"version": "8deec94c6040bb4a767f6e9456a0a44c7f2e713e", "lessThan": "e148266e104fce396ad624079a6812ac3a9982ef", "status": "affected", "versionType": "git"}, {"version": "8deec94c6040bb4a767f6e9456a0a44c7f2e713e", "lessThan": "9e51a6a44e2c4de780a26e8fe110d708e806a8cd", "status": "affected", "versionType": "git"}, {"version": "8deec94c6040bb4a767f6e9456a0a44c7f2e713e", "lessThan": "c60d101a226f18e9a8f01bb4c6ca2b47dfcb15ef", "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/net/ethernet/stmicro/stmmac/stmmac_main.c"], "versions": [{"version": "5.13", "status": "affected"}, {"version": "0", "lessThan": "5.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.164", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.117", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.36", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13.12", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.14.3", "lessThanOrEqual": "6.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15", "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": "5.13", "versionEndExcluding": "6.1.164"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.6.117"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.12.36"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.13.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.14.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.15"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/2fbf67ddb8a0d0efc00d2df496a9843ec318d48b"}, {"url": "https://git.kernel.org/stable/c/960dab23f6d405740c537d095f90a4ee9ddd9285"}, {"url": "https://git.kernel.org/stable/c/442312c2a90d60c7a5197246583fa91d9e579985"}, {"url": "https://git.kernel.org/stable/c/e148266e104fce396ad624079a6812ac3a9982ef"}, {"url": "https://git.kernel.org/stable/c/9e51a6a44e2c4de780a26e8fe110d708e806a8cd"}, {"url": "https://git.kernel.org/stable/c/c60d101a226f18e9a8f01bb4c6ca2b47dfcb15ef"}], "title": "net: stmmac: Fix accessing freed irq affinity_hint", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "573B9A24-9753-4B70-B2CD-DC8874B067AC", "versionEndExcluding": "6.12.36", "versionStartIncluding": "5.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "4A475784-BF3B-4514-81EE-49C8522FB24A", "versionEndExcluding": "6.13.12", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "483E2E15-2135-4EC6-AB64-16282C5EF704", "versionEndExcluding": "6.14.3", "versionStartIncluding": "6.14", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: stmmac: Fix accessing freed irq affinity_hint\n\nIn stmmac_request_irq_multi_msi(), a pointer to the stack variable\ncpu_mask is passed to irq_set_affinity_hint(). This value is stored in\nirq_desc->affinity_hint, but once stmmac_request_irq_multi_msi()\nreturns, the pointer becomes dangling.\n\nThe affinity_hint is exposed via procfs with S_IRUGO permissions,\nallowing any unprivileged process to read it. Accessing this stale\npointer can lead to:\n\n- a kernel oops or panic if the referenced memory has been released and\n unmapped, or\n- leakage of kernel data into userspace if the memory is re-used for\n other purposes.\n\nAll platforms that use stmmac with PCI MSI (Intel, Loongson, etc) are\naffected."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: stmmac: Se corrige el acceso a la IRQ liberada affinity_hint. La m\u00e1scara cpu no debe ser una variable local, ya que su puntero se guarda en irq_desc y se puede acceder desde procfs. Para corregirla, utilice la m\u00e1scara persistente cpumask_of(cpu#)."}], "id": "CVE-2025-23155", "lastModified": "2026-03-17T14:41:48.430", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-05-01T13:15:51.413", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2fbf67ddb8a0d0efc00d2df496a9843ec318d48b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/442312c2a90d60c7a5197246583fa91d9e579985"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/960dab23f6d405740c537d095f90a4ee9ddd9285"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9e51a6a44e2c4de780a26e8fe110d708e806a8cd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c60d101a226f18e9a8f01bb4c6ca2b47dfcb15ef"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e148266e104fce396ad624079a6812ac3a9982ef"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net: stmmac: Fix accessing freed irq affinity_hint", "id": "2363266", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363266"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet: stmmac: Fix accessing freed irq affinity_hint\nThe cpumask should not be a local variable, since its pointer is saved\nto irq_desc and may be accessed from procfs.\nTo fix it, use the persistent mask cpumask_of(cpu#)."], "name": "CVE-2025-23155", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"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": "2025-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-23155\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-23155\nhttps://lore.kernel.org/linux-cve-announce/2025050129-CVE-2025-23155-a9c4@gregkh/T"], "threat_severity": "Moderate"}

{}