{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-40179 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-40179 is a denial of service vulnerability in Linux, published on 12 Nov 2025. 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-2025-40179 and fix it if it is affected.\n\nWhat it is: CVE-2025-40179 is a denial of service vulnerability in Linux, published on 12 Nov 2025. 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-2025-40179 in the wild and no public exploit code.\n\nAffected product: Linux. 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-2025-40179/ (Markdown: https://insights.sbomify.com/CVE-2025-40179/index.md)","id":"CVE-2025-40179","markdown":"https://insights.sbomify.com/CVE-2025-40179/index.md","name":"CVE-2025-40179","record":{"aliases":["AZL-70061","BELL-CVE-2025-40179","DEBIAN-CVE-2025-40179","GHSA-pf5x-wpf2-8vp9","ROOT-OS-DEBIAN-13-CVE-2025-40179","ROOT-OS-UBUNTU-2404-CVE-2025-40179","UBUNTU-CVE-2025-40179"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"An attacker can cause excessive memory consumption and denial of service by mounting a filesystem with an absurdly large orphan file.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: verify orphan file size is not too big\n\nIn principle orphan file can be arbitrarily large. However orphan replay\nneeds to traverse it all and we also pin all its buffers in memory. Thus\nfilesystems with absurdly large orphan files can lead to big amounts of\nmemory consumed. Limit orphan file size to a sane value and also use\nkvmalloc() for allocating array of block descriptor structures to avoid\nlarge order allocations for sane but large orphan files.","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":"ext4: verify orphan file size is not too big","id":"CVE-2025-40179","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2025"},"n_packages":0,"n_references":6,"next":{"headline":"mailbox: zynqmp-ipi: Fix out-of-bounds access in mailbox cleanup loop","id":"CVE-2025-40180"},"packages":[],"prev":{"headline":"pid: Add a judgment for ns null in pid_nr_ns","id":"CVE-2025-40178"},"products":["Linux"],"published":"2025-11-12","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"An attacker can cause excessive memory consumption and denial of service by mounting a filesystem with an absurdly large orphan file.","url":"https://insights.sbomify.com/CVE-2025-40179/"}