{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-14T21:43:59.561","vulnerabilities":[{"cve":{"id":"CVE-2021-47190","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-04-10T19:15:47.617","lastModified":"2025-01-07T17:11:50.810","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nperf bpf: Avoid memory leak from perf_env__insert_btf()\n\nperf_env__insert_btf() doesn't insert if a duplicate BTF id is\nencountered and this causes a memory leak. Modify the function to return\na success\/error value and then free the memory if insertion didn't\nhappen.\n\nv2. Adds a return -1 when the insertion error occurs in\n    perf_env__fetch_btf. This doesn't affect anything as the result is\n    never checked."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: perf bpf: Evitar pérdida de memoria de perf_env__insert_btf() perf_env__insert_btf() no se inserta si se encuentra un ID de BTF duplicado y esto provoca una pérdida de memoria. Modifique la función para que devuelva un valor de éxito\/error y luego libere la memoria si la inserción no ocurrió. v2. Agrega un retorno -1 cuando ocurre el error de inserción en perf_env__fetch_btf. Esto no afecta a nada ya que el resultado nunca se verifica."}],"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:N\/I:N\/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-401"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"5.4.162","matchCriteriaId":"1EA79351-9450-4ADC-97B7-02437D35FBB6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.82","matchCriteriaId":"AE501832-500C-4EF1-9489-5C13674F619D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.5","matchCriteriaId":"2128A085-4C0C-4C1E-9E9C-0DD868E2170F"}]}]}],"references":[{"url":"https:\/\/git.kernel.org\/stable\/c\/11589d3144bc4e272e0aae46ce8156162e99babc","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https:\/\/git.kernel.org\/stable\/c\/4924b1f7c46711762fd0e65c135ccfbcfd6ded1f","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https:\/\/git.kernel.org\/stable\/c\/642fc22210a5e59d40b1e4d56d21ec3effd401f2","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https:\/\/git.kernel.org\/stable\/c\/ab7c3d8d81c511ddfb27823fb07081c96422b56e","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https:\/\/git.kernel.org\/stable\/c\/11589d3144bc4e272e0aae46ce8156162e99babc","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https:\/\/git.kernel.org\/stable\/c\/4924b1f7c46711762fd0e65c135ccfbcfd6ded1f","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https:\/\/git.kernel.org\/stable\/c\/642fc22210a5e59d40b1e4d56d21ec3effd401f2","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https:\/\/git.kernel.org\/stable\/c\/ab7c3d8d81c511ddfb27823fb07081c96422b56e","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]}]}}]}