{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-98446 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-98446 is a vulnerability in Linux, published on 18 Oct 2026. 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-2026-98446 and fix it if it is affected.\n\nWhat it is: CVE-2026-98446 is a vulnerability in Linux, published on 18 Oct 2026. 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-2026-98446 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-2026-98446/ (Markdown: https://insights.sbomify.com/CVE-2026-98446/index.md)","id":"CVE-2026-98446","markdown":"https://insights.sbomify.com/CVE-2026-98446/index.md","name":"CVE-2026-98446","record":{"aliases":["BELL-CVE-2026-98446","DEBIAN-CVE-2026-98446","GHSA-8r8r-jgjj-w55r","UBUNTU-CVE-2026-98446"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel XFS","requires_auth":"none","summary":"An integer underflow in the Linux kernel XFS filesystem can cause excessive space reservation, leading to a denial of service.","user_interaction":"not_required","vuln_class":"integer_overflow"},"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\nxfs: don't let hidden_space go negative in xfs_metafile_resv_init\n\nLOLLM points out that if the amount of fdblocks that we can reserve for\na metadata btree file goes below the space already used by that file,\nthen the hidden_space subtraction can underflow, causing\nxfs_dec_fdblocks to subtract a huge amount of space.  We never want the\ntarget to be less than the used sapce, so fix the logic that adjusts\ndblocks_avail downwards.\n\nAlso fix an error in the adjacent comment.","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":"xfs: don't let hidden_space go negative in xfs_metafile_resv_init","id":"CVE-2026-98446","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"xfs: fix wild memcpy access when formatting ondisk rtrefcount btree roots","id":"CVE-2026-98447"},"packages":[],"prev":{"headline":"xfs: don't let memory failures leak blocks and kill repairs","id":"CVE-2026-98445"},"products":["Linux"],"published":"2026-10-18","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":"2026-10-19","vendors":["Linux"]},"summary":"An integer underflow in the Linux kernel XFS filesystem can cause excessive space reservation, leading to a denial of service.","url":"https://insights.sbomify.com/CVE-2026-98446/"}