{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-04T00:31:17.571","vulnerabilities":[{"cve":{"id":"CVE-2021-47295","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-05-21T15:15:17.400","lastModified":"2025-12-06T05:16:40.880","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sched: fix memory leak in tcindex_partial_destroy_work\n\nSyzbot reported memory leak in tcindex_set_parms(). The problem was in\nnon-freed perfect hash in tcindex_partial_destroy_work().\n\nIn tcindex_set_parms() new tcindex_data is allocated and some fields from\nold one are copied to new one, but not the perfect hash. Since\ntcindex_partial_destroy_work() is the destroy function for old\ntcindex_data, we need to free perfect hash to avoid memory leak."},{"lang":"es","value":"En el kernel de Linux, se resolvió la siguiente vulnerabilidad: net: sched: corrige la pérdida de memoria en tcindex_partial_destroy_work Syzbot informó una pérdida de memoria en tcindex_set_parms(). El problema estaba en el hash perfecto no liberado en tcindex_partial_destroy_work(). En tcindex_set_parms() se asigna un nuevo tcindex_data y algunos campos del anterior se copian al nuevo, pero no el hash perfecto. Dado que tcindex_partial_destroy_work() es la función de destrucción del antiguo tcindex_data, necesitamos liberar un hash perfecto para evitar pérdidas de memoria."}],"metrics":{"cvssMetricV31":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}]},"weaknesses":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","description":[{"lang":"en","value":"CWE-400"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.18","versionEndExcluding":"5.4.136","matchCriteriaId":"C46438A5-C5EF-4BCB-8BD6-D7FB46AEE597"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.54","matchCriteriaId":"1BD5A2EE-859F-40FC-BDAC-167AAE37C870"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.13.6","matchCriteriaId":"512C22FC-1524-4E6F-9E62-4F4B7B6E0576"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.14:rc1:*:*:*:*:*:*","matchCriteriaId":"71268287-21A8-4488-AA4F-23C473153131"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.14:rc2:*:*:*:*:*:*","matchCriteriaId":"23B9E5C6-FAB5-4A02-9E39-27C8787B0991"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/01d0d2b8b4e3cf2110baba9371c0c3d04ad5c77b","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/18c3fa7a7fdbb4d21dafc8a7710ae2c1680930f6","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/372ae77cf11d11fb118cbe2d37def9dd5f826abd","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3abebc503a5148072052c229c6b04b329a420ecd","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/53af9c793f644d5841d84d8e0ad83bd7ab47f3e0","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7a6fb69bbcb21e9ce13bdf18c008c268874f0480","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7c183dc0af472dec33d2c0786a5e356baa8cad19","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8d7924ce85bae64e7a67c366c7c50840f49f3a62","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/8e9662fde6d63c78eb1350f6167f64c9d71a865b","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/cac71d27745f92ee13f0ecc668ffe151a4a9c9b1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/f5051bcece50140abd1a11a2d36dc3ec5484fc32","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/8d7924ce85bae64e7a67c366c7c50840f49f3a62","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/8e9662fde6d63c78eb1350f6167f64c9d71a865b","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/cac71d27745f92ee13f0ecc668ffe151a4a9c9b1","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/f5051bcece50140abd1a11a2d36dc3ec5484fc32","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]}]}}]}