{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-42131 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-42131 is a medium-severity vulnerability in Linux kernel, published on 30 Jul 2024. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2024-42131 and fix it if it is affected.\n\nWhat it is: CVE-2024-42131 is a medium-severity vulnerability in Linux kernel, published on 30 Jul 2024. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2024-42131 in the wild and no public exploit code.\n\nAffected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2024-42131/ (Markdown: https://insights.sbomify.com/CVE-2024-42131/index.md)","id":"CVE-2024-42131","markdown":"https://insights.sbomify.com/CVE-2024-42131/index.md","name":"CVE-2024-42131","record":{"aliases":["BELL-CVE-2024-42131","DEBIAN-CVE-2024-42131","GHSA-vc72-g5gr-jp4w","UBUNTU-CVE-2024-42131"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux kernel","requires_auth":"high_privilege","summary":"A root user can trigger integer overflows in Linux kernel dirty throttling logic by setting excessive memory limits, potentially causing system instability or crashes.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":4.4,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm: avoid overflows in dirty throttling logic\n\nThe dirty throttling logic is interspersed with assumptions that dirty\nlimits in PAGE_SIZE units fit into 32-bit (so that various multiplications\nfit into 64-bits).  If limits end up being larger, we will hit overflows,\npossible divisions by 0 etc.  Fix these problems by never allowing so\nlarge dirty limits as they have dubious practical value anyway.  For\ndirty_bytes / dirty_background_bytes interfaces we can just refuse to set\nso large limits.  For dirty_ratio / dirty_background_ratio it isn't so\nsimple as the dirty limit is computed from the amount of available memory\nwhich can change due to memory hotplug etc.  So when converting dirty\nlimits from ratios to numbers of pages, we just don't allow the result to\nexceed UINT_MAX.\n\nThis is root-only triggerable problem which occurs when the operator\nsets dirty limits to \u003e16 TB.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"mm: avoid overflows in dirty throttling logic","id":"CVE-2024-42131","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"integer_overflow","year":"2024"},"n_packages":0,"n_references":8,"next":{"headline":"bluetooth/hci: disallow setting handle bigger than HCI_CONN_HANDLE_MAX","id":"CVE-2024-42132"},"packages":[],"prev":{"headline":"This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.","id":"CVE-2024-42130"},"products":["Linux"],"published":"2024-07-30","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["Linux"]},"summary":"A root user can trigger integer overflows in Linux kernel dirty throttling logic by setting excessive memory limits, potentially causing system instability or crashes.","url":"https://insights.sbomify.com/CVE-2024-42131/"}