CVE-2024-57927

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This causes\nnfs_file_open_context() to oops - however, we don't actually need the nfs\ncontext as we're only going to write to the cache.\n\nFix this by just returning if we aren't given a file pointer and emit a\nwarning if the request was for something other than copy-to-cache.\n\nFurther, fix nfs_netfs_free_request() so that it doesn't try to free the\ncontext if the pointer is NULL."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nfs: Arreglar oops en nfs_netfs_init_request() al copiar a cach\u00e9 Cuando netfslib quiere copiar algunos datos que acaban de leerse en nombre de nfs, crea una nueva solicitud de escritura y llama a nfs_netfs_init_request() para inicializarla, pero con un puntero de archivo NULL. Esto hace que nfs_file_open_context() d\u00e9 un error; sin embargo, en realidad no necesitamos el contexto nfs ya que solo vamos a escribir en la cach\u00e9. Arregla esto simplemente devolviendo si no se nos da un puntero de archivo y emitiendo una advertencia si la solicitud fue para algo distinto a copiar a cach\u00e9. Adem\u00e1s, arregla nfs_netfs_free_request() para que no intente liberar el contexto si el puntero es NULL."}], "id": "CVE-2024-57927", "lastModified": "2026-06-17T08:14:15.140", "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"}, {"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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-57927", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T19:52:59.606931Z", "version": "2.0.3"}}]}, "published": "2025-01-19T12:15:26.810", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/13a07cc81e2d116cece727a83746c74b87a9d417"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/86ad1a58f6a9453f49e06ef957a40a8dac00a13f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-476"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: nfs: Fix oops in nfs_netfs_init_request() when copying to cache", "id": "2338850", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2338850"}, "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"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnfs: Fix oops in nfs_netfs_init_request() when copying to cache\nWhen netfslib wants to copy some data that has just been read on behalf of\nnfs, it creates a new write request and calls nfs_netfs_init_request() to\ninitialise it, but with a NULL file pointer. This causes\nnfs_file_open_context() to oops - however, we don't actually need the nfs\ncontext as we're only going to write to the cache.\nFix this by just returning if we aren't given a file pointer and emit a\nwarning if the request was for something other than copy-to-cache.\nFurther, fix nfs_netfs_free_request() so that it doesn't try to free the\ncontext if the pointer is NULL."], "name": "CVE-2024-57927", "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": "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": "2025-01-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-57927\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-57927\nhttps://lore.kernel.org/linux-cve-announce/2025011944-CVE-2024-57927-fb00@gregkh/T"], "threat_severity": "Moderate"}

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