{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-09T13:29:11.226","vulnerabilities":[{"cve":{"id":"CVE-2021-46966","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-02-27T19:04:07.127","lastModified":"2024-12-06T17:55:15.673","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: custom_method: fix potential use-after-free issue\n\nIn cm_write(), buf is always freed when reaching the end of the\nfunction.  If the requested count is less than table.length, the\nallocated buffer will be freed but subsequent calls to cm_write() will\nstill try to access it.\n\nRemove the unconditional kfree(buf) at the end of the function and\nset the buf to NULL in the -EINVAL error path to match the rest of\nfunction."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ACPI: custom_method: soluciona un posible problema de use-after-free En cm_write(), buf siempre se libera al llegar al final de la función. Si el recuento solicitado es menor que table.length, el búfer asignado se liberará, pero las llamadas posteriores a cm_write() seguirán intentando acceder a él. Elimine el kfree(buf) incondicional al final de la función y establezca el buf en NULL en la ruta de error -EINVAL para que coincida con el resto de la función."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"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","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-416"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4.195","versionEndExcluding":"4.4.269","matchCriteriaId":"54A3D99C-739B-406F-AF5B-ABFF201FD7EA"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9.195","versionEndExcluding":"4.9.269","matchCriteriaId":"40842990-645D-419D-851F-07328ECC681E"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14.147","versionEndExcluding":"4.14.233","matchCriteriaId":"06219DEF-0B7F-4D93-9878-9DC640945517"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.77","versionEndExcluding":"4.19.191","matchCriteriaId":"3E80ED24-F781-449F-8035-CBA0FB5C6691"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.4.118","matchCriteriaId":"45C90F78-15A8-452F-AA7D-00A762FDEFE7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.36","matchCriteriaId":"003E22D0-CA29-4338-8B35-0754C740074F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.11.20","matchCriteriaId":"EEC03413-9760-46D4-AC1D-EB084A1D4111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"5.12.3","matchCriteriaId":"F9D6B2DE-7E4A-4B3B-9AEE-3A2C5F23DA32"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/1d53ca5d131074c925ce38361fb0376d3bf7e394","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/62dc2440ebb552aa0d7f635e1697e077d9d21203","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/72814a94c38a33239793f7622cec6ace1e540c4b","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/8b04d57f30caf76649d0567551589af9a66ca9be","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/90575d1d9311b753cf1718f4ce9061ddda7dfd23","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/a5b26a2e362f572d87e9fd35435680e557052a17","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/b7a5baaae212a686ceb812c32fceed79c03c0234","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/e483bb9a991bdae29a0caa4b3a6d002c968f94aa","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/f16737caf41fc06cfe6e49048becb09657074d4b","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/1d53ca5d131074c925ce38361fb0376d3bf7e394","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/62dc2440ebb552aa0d7f635e1697e077d9d21203","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/72814a94c38a33239793f7622cec6ace1e540c4b","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/8b04d57f30caf76649d0567551589af9a66ca9be","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/90575d1d9311b753cf1718f4ce9061ddda7dfd23","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/a5b26a2e362f572d87e9fd35435680e557052a17","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/b7a5baaae212a686ceb812c32fceed79c03c0234","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/e483bb9a991bdae29a0caa4b3a6d002c968f94aa","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/f16737caf41fc06cfe6e49048becb09657074d4b","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]}]}}]}