{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-44949", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-08-21T05:34:56.665Z", "datePublished": "2024-09-04T18:35:49.788Z", "dateUpdated": "2024-11-05T09:42:45.893Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T09:42:45.893Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nparisc: fix a possible DMA corruption\n\nARCH_DMA_MINALIGN was defined as 16 - this is too small - it may be\npossible that two unrelated 16-byte allocations share a cache line. If\none of these allocations is written using DMA and the other is written\nusing cached write, the value that was written with DMA may be\ncorrupted.\n\nThis commit changes ARCH_DMA_MINALIGN to be 128 on PA20 and 32 on PA1.1 -\nthat's the largest possible cache line size.\n\nAs different parisc microarchitectures have different cache line size, we\ndefine arch_slab_minalign(), cache_line_size() and\ndma_get_cache_alignment() so that the kernel may tune slab cache\nparameters dynamically, based on the detected cache line size."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/parisc/Kconfig", "arch/parisc/include/asm/cache.h"], "versions": [{"version": "1da177e4c3f4", "lessThan": "642a0b7453da", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "533de2f470ba", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "7ae04ba36b38", "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/parisc/Kconfig", "arch/parisc/include/asm/cache.h"], "versions": [{"version": "6.6.46", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10.5", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/642a0b7453daff0295310774016fcb56d1f5bc7f"}, {"url": "https://git.kernel.org/stable/c/533de2f470baac40d3bf622fe631f15231a03c9f"}, {"url": "https://git.kernel.org/stable/c/7ae04ba36b381bffe2471eff3a93edced843240f"}], "title": "parisc: fix a possible DMA corruption", "x_generator": {"engine": "bippy-9e1c9544281a"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-44949", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T17:40:26.389987Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-12T17:33:37.283Z"}}]}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "84C35A98-08C9-4674-8AC8-9CC0757B7699", "versionEndExcluding": "6.6.46", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D074AE50-4A5E-499C-A2FD-75FD60DEA560", "versionEndExcluding": "6.10.5", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*", "matchCriteriaId": "8B3CE743-2126-47A3-8B7C-822B502CF119", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nparisc: fix a possible DMA corruption\n\nARCH_DMA_MINALIGN was defined as 16 - this is too small - it may be\npossible that two unrelated 16-byte allocations share a cache line. If\none of these allocations is written using DMA and the other is written\nusing cached write, the value that was written with DMA may be\ncorrupted.\n\nThis commit changes ARCH_DMA_MINALIGN to be 128 on PA20 and 32 on PA1.1 -\nthat's the largest possible cache line size.\n\nAs different parisc microarchitectures have different cache line size, we\ndefine arch_slab_minalign(), cache_line_size() and\ndma_get_cache_alignment() so that the kernel may tune slab cache\nparameters dynamically, based on the detected cache line size."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: parisc: se corrige una posible corrupci\u00f3n de DMA ARCH_DMA_MINALIGN se defini\u00f3 como 16 - esto es demasiado peque\u00f1o - puede ser posible que dos asignaciones de 16 bytes no relacionadas compartan una l\u00ednea de cach\u00e9. Si una de estas asignaciones se escribe usando DMA y la otra se escribe usando escritura en cach\u00e9, el valor que se escribi\u00f3 con DMA puede estar da\u00f1ado. Esta confirmaci\u00f3n cambia ARCH_DMA_MINALIGN a 128 en PA20 y 32 en PA1.1 - ese es el tama\u00f1o de l\u00ednea de cach\u00e9 m\u00e1s grande posible. Como las diferentes microarquitecturas de parisc tienen diferentes tama\u00f1os de l\u00ednea de cach\u00e9, definimos arch_slab_minalign(), cache_line_size() y dma_get_cache_alignment() para que el kernel pueda ajustar los par\u00e1metros de cach\u00e9 de losa din\u00e1micamente, seg\u00fan el tama\u00f1o de l\u00ednea de cach\u00e9 detectado."}], "id": "CVE-2024-44949", "lastModified": "2024-10-09T13:53:32.513", "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": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-09-04T19:15:30.040", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/533de2f470baac40d3bf622fe631f15231a03c9f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/642a0b7453daff0295310774016fcb56d1f5bc7f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7ae04ba36b381bffe2471eff3a93edced843240f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: parisc: fix a possible DMA corruption", "id": "2309780", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2309780"}, "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:N/I:H/A:H", "status": "draft"}, "cwe": "CWE-665", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nparisc: fix a possible DMA corruption\nARCH_DMA_MINALIGN was defined as 16 - this is too small - it may be\npossible that two unrelated 16-byte allocations share a cache line. If\none of these allocations is written using DMA and the other is written\nusing cached write, the value that was written with DMA may be\ncorrupted.\nThis commit changes ARCH_DMA_MINALIGN to be 128 on PA20 and 32 on PA1.1 -\nthat's the largest possible cache line size.\nAs different parisc microarchitectures have different cache line size, we\ndefine arch_slab_minalign(), cache_line_size() and\ndma_get_cache_alignment() so that the kernel may tune slab cache\nparameters dynamically, based on the detected cache line size."], "name": "CVE-2024-44949", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "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": "2024-09-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-44949\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-44949\nhttps://lore.kernel.org/linux-cve-announce/2024090410-CVE-2024-44949-8f05@gregkh/T"], "threat_severity": "Moderate"}