{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-02T00:57:18.671","vulnerabilities":[{"cve":{"id":"CVE-2026-23147","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2026-02-14T16:15:54.813","lastModified":"2026-03-17T21:12:52.717","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: zlib: fix the folio leak on S390 hardware acceleration\n\n[BUG]\nAfter commit aa60fe12b4f4 (\"btrfs: zlib: refactor S390x HW acceleration\nbuffer preparation\"), we no longer release the folio of the page cache\nof folio returned by btrfs_compress_filemap_get_folio() for S390\nhardware acceleration path.\n\n[CAUSE]\nBefore that commit, we call kumap_local() and folio_put() after handling\neach folio.\n\nAlthough the timing is not ideal (it release previous folio at the\nbeginning of the loop, and rely on some extra cleanup out of the loop),\nit at least handles the folio release correctly.\n\nMeanwhile the refactored code is easier to read, it lacks the call to\nrelease the filemap folio.\n\n[FIX]\nAdd the missing folio_put() for copy_data_into_buffer()."},{"lang":"es","value":"En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nbtrfs: zlib: corregir la fuga de folio en la aceleración de hardware S390\n\n[BUG]\nDespués del commit aa60fe12b4f4 ('btrfs: zlib: refactorizar la preparación del búfer de aceleración de hardware S390x'), ya no liberamos el folio de la caché de páginas del folio devuelto por btrfs_compress_filemap_get_folio() para la ruta de aceleración de hardware S390.\n\n[CAUSA]\nAntes de ese commit, llamábamos a kumap_local() y folio_put() después de manejar cada folio.\n\nAunque el momento no es ideal (libera el folio anterior al principio del bucle y depende de una limpieza adicional fuera del bucle), al menos maneja la liberación del folio correctamente.\n\nMientras que el código refactorizado es más fácil de leer, carece de la llamada para liberar el folio del filemap.\n\n[SOLUCIÓN]\nAñadir el folio_put() faltante para copy_data_into_buffer()."}],"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":"6.15","versionEndExcluding":"6.18.9","matchCriteriaId":"DFE8933C-F032-4E9A-9180-7A359697E8A6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*","matchCriteriaId":"17B67AA7-40D6-4AFA-8459-F200F3D7CFD1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*","matchCriteriaId":"C47E4CC9-C826-4FA9-B014-7FE3D9B318B2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*","matchCriteriaId":"F71D92C0-C023-48BD-B3B6-70B638EEE298"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*","matchCriteriaId":"13580667-0A98-40CC-B29F-D12790B91BDB"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*","matchCriteriaId":"CAD1FED7-CF48-47BF-AC7D-7B6FA3C065FC"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*","matchCriteriaId":"3EF854A1-ABB1-4E93-BE9A-44569EC76C0D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:*","matchCriteriaId":"F5DC0CA6-F0AF-4DDF-A882-3DADB9A886A7"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/0d0f1314e8f86f5205f71f9e31e272a1d008e40b","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/e80617a5e1c246da2f112a1a072cdd535046adfe","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}