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CVE-2024-42316 (GCVE-0-2024-42316)

Vulnerability from cvelistv5 – Published: 2024-08-17 09:09 – Updated: 2026-05-11 20:30
VLAI
Title
mm/mglru: fix div-by-zero in vmpressure_calc_level()
Summary
In the Linux kernel, the following vulnerability has been resolved: mm/mglru: fix div-by-zero in vmpressure_calc_level() evict_folios() uses a second pass to reclaim folios that have gone through page writeback and become clean before it finishes the first pass, since folio_rotate_reclaimable() cannot handle those folios due to the isolation. The second pass tries to avoid potential double counting by deducting scan_control->nr_scanned. However, this can result in underflow of nr_scanned, under a condition where shrink_folio_list() does not increment nr_scanned, i.e., when folio_trylock() fails. The underflow can cause the divisor, i.e., scale=scanned+reclaimed in vmpressure_calc_level(), to become zero, resulting in the following crash: [exception RIP: vmpressure_work_fn+101] process_one_work at ffffffffa3313f2b Since scan_control->nr_scanned has no established semantics, the potential double counting has minimal risks. Therefore, fix the problem by not deducting scan_control->nr_scanned in evict_folios().
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 16:09 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 359a5e1416caaf9ce28396a65ed3e386cc5de663 , < 8de7bf77f21068a5f602bb1e59adbc5ab533509d (git)
Affected: 359a5e1416caaf9ce28396a65ed3e386cc5de663 , < d6510f234c7d117790397f9bb150816b0a954a04 (git)
Affected: 359a5e1416caaf9ce28396a65ed3e386cc5de663 , < a39e38be632f0e1c908d70d1c9cd071c03faf895 (git)
Affected: 359a5e1416caaf9ce28396a65ed3e386cc5de663 , < 8b671fe1a879923ecfb72dda6caf01460dd885ef (git)
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Linux Linux Affected: 6.1
Unaffected: 0 , < 6.1 (semver)
Unaffected: 6.1.103 , ≤ 6.1.* (semver)
Unaffected: 6.6.44 , ≤ 6.6.* (semver)
Unaffected: 6.10.3 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)
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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-\u003enr_scanned has no established semantics, the potential\\ndouble counting has minimal risks.  Therefore, fix the problem by not\\ndeducting scan_control-\u003enr_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 p\u00e1ginas 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-\u0026gt;nr_scanned. Sin embargo, esto puede resultar en un desbordamiento insuficiente de nr_scanned, bajo una condici\u00f3n 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: [excepci\u00f3n RIP: vmpression_work_fn+101] Process_one_work en ffffffffa3313f2b Dado que scan_control-\u0026gt;nr_scanned no tiene una sem\u00e1ntica establecida, la posible doble contabilizaci\u00f3n tiene riesgos m\u00ednimos. Por lo tanto, solucione el problema no deduciendo scan_control-\u0026gt;nr_scanned en evict_folios().\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"mm/vmscan.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"359a5e1416caaf9ce28396a65ed3e386cc5de663\",\"lessThan\":\"8de7bf77f21068a5f602bb1e59adbc5ab533509d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"359a5e1416caaf9ce28396a65ed3e386cc5de663\",\"lessThan\":\"d6510f234c7d117790397f9bb150816b0a954a04\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"359a5e1416caaf9ce28396a65ed3e386cc5de663\",\"lessThan\":\"a39e38be632f0e1c908d70d1c9cd071c03faf895\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"359a5e1416caaf9ce28396a65ed3e386cc5de663\",\"lessThan\":\"8b671fe1a879923ecfb72dda6caf01460dd885ef\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"mm/vmscan.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.1\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.1\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.103\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.44\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.10.3\",\"lessThanOrEqual\":\"6.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.11\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"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}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-09-10T16:09:42.817559Z\",\"id\":\"CVE-2024-42316\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"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\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T08:02:32+00:00",
      "cve": "CVE-2024-42316",
      "id": "CVE-2024-42316",
      "initial_release_date": "2024-08-17T00:00:00+00:00",
      "product_status:fixed": "305",
      "product_status:known_affected": "64",
      "product_status:known_not_affected": "48",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: mm/mglru: fix div-by-zero in vmpressure_calc_level()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-42316.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T01:50:32Z",
      "cve": "CVE-2024-42316",
      "id": "CVE-2024-42316",
      "initial_release_date": "2024-08-18T02:02:10Z",
      "product_status:known_affected": "394",
      "product_status:known_not_affected": "348",
      "product_status:recommended": "398",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-42316",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-42316.json",
      "version": "62"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-42316\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T16:09:42.817559Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:23.395Z\"}}], \"cna\": {\"title\": \"mm/mglru: fix div-by-zero in vmpressure_calc_level()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"359a5e1416caaf9ce28396a65ed3e386cc5de663\", \"lessThan\": \"8de7bf77f21068a5f602bb1e59adbc5ab533509d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"359a5e1416caaf9ce28396a65ed3e386cc5de663\", \"lessThan\": \"d6510f234c7d117790397f9bb150816b0a954a04\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"359a5e1416caaf9ce28396a65ed3e386cc5de663\", \"lessThan\": \"a39e38be632f0e1c908d70d1c9cd071c03faf895\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"359a5e1416caaf9ce28396a65ed3e386cc5de663\", \"lessThan\": \"8b671fe1a879923ecfb72dda6caf01460dd885ef\", \"versionType\": \"git\"}], \"programFiles\": [\"mm/vmscan.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.1\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.1\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.1.103\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.44\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.10.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"mm/vmscan.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/8de7bf77f21068a5f602bb1e59adbc5ab533509d\"}, {\"url\": \"https://git.kernel.org/stable/c/d6510f234c7d117790397f9bb150816b0a954a04\"}, {\"url\": \"https://git.kernel.org/stable/c/a39e38be632f0e1c908d70d1c9cd071c03faf895\"}, {\"url\": \"https://git.kernel.org/stable/c/8b671fe1a879923ecfb72dda6caf01460dd885ef\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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-\u003enr_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-\u003enr_scanned has no established semantics, the potential\\ndouble counting has minimal risks.  Therefore, fix the problem by not\\ndeducting scan_control-\u003enr_scanned in evict_folios().\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.103\", \"versionStartIncluding\": \"6.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.44\", \"versionStartIncluding\": \"6.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10.3\", \"versionStartIncluding\": \"6.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11\", \"versionStartIncluding\": \"6.1\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T09:26:36.614Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-42316\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T09:26:36.614Z\", \"dateReserved\": \"2024-07-30T07:40:12.278Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-08-17T09:09:24.694Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.