{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-22T07:29:39.853","vulnerabilities":[{"cve":{"id":"CVE-2024-42316","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-08-17T09:15:11.547","lastModified":"2025-11-03T22:18:03.200","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/mglru: fix div-by-zero in vmpressure_calc_level()\n\nevict_folios() uses a second pass to reclaim folios that have gone through\npage writeback and become clean before it finishes the first pass, since\nfolio_rotate_reclaimable() cannot handle those folios due to the\nisolation.\n\nThe second pass tries to avoid potential double counting by deducting\nscan_control->nr_scanned.  However, this can result in underflow of\nnr_scanned, under a condition where shrink_folio_list() does not increment\nnr_scanned, i.e., when folio_trylock() fails.\n\nThe underflow can cause the divisor, i.e., scale=scanned+reclaimed in\nvmpressure_calc_level(), to become zero, resulting in the following crash:\n\n  [exception RIP: vmpressure_work_fn+101]\n  process_one_work at ffffffffa3313f2b\n\nSince scan_control->nr_scanned has no established semantics, the potential\ndouble counting has minimal risks.  Therefore, fix the problem by not\ndeducting scan_control->nr_scanned in evict_folios()."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm/mglru: corrige div-by-zero en vmpression_calc_level() evict_folios() utiliza una segunda pasada para recuperar las publicaciones que han pasado por la reescritura de páginas y quedan limpias antes de finalizar el primer pase, ya que folio_rotate_reclaimable() no puede manejar esos folios debido al aislamiento. El segundo paso intenta evitar un posible doble conteo deduciendo scan_control->nr_scanned. Sin embargo, esto puede resultar en un desbordamiento insuficiente de nr_scanned, bajo una condición en la que Shrink_folio_list() no incrementa nr_scanned, es decir, cuando falla folio_trylock(). El desbordamiento insuficiente puede causar que el divisor, es decir, escala=escaneado+reclamado en vmpression_calc_level(), se convierta en cero, lo que resulta en el siguiente bloqueo: [excepción RIP: vmpression_work_fn+101] Process_one_work en ffffffffa3313f2b Dado que scan_control->nr_scanned no tiene una semántica establecida, la posible doble contabilización tiene riesgos mínimos. Por lo tanto, solucione el problema no deduciendo scan_control->nr_scanned en evict_folios()."}],"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-369"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.1.103","matchCriteriaId":"81F7EA03-5805-43D2-9A78-820250B70B32"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.44","matchCriteriaId":"CC912330-6B41-4C6B-99AF-F3857FBACB6A"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.10.3","matchCriteriaId":"92D388F2-1EAF-4CFA-AC06-5B26D762EA7D"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/8b671fe1a879923ecfb72dda6caf01460dd885ef","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/8de7bf77f21068a5f602bb1e59adbc5ab533509d","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/a39e38be632f0e1c908d70d1c9cd071c03faf895","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/d6510f234c7d117790397f9bb150816b0a954a04","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}]}