{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-98843 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-98843 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-2026-98843 and fix it if it is affected.\n\nWhat it is: CVE-2026-98843 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-2026-98843 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-2026-98843/ (Markdown: https://insights.sbomify.com/CVE-2026-98843/index.md)","id":"CVE-2026-98843","markdown":"https://insights.sbomify.com/CVE-2026-98843/index.md","name":"CVE-2026-98843","record":{"aliases":["BELL-CVE-2026-98843","DEBIAN-CVE-2026-98843","GHSA-3x6r-43qp-fxh7","UBUNTU-CVE-2026-98843"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"An attacker with local access could read stale data from the Linux kernel netfs subsystem due to improper zeroing of read gaps.","user_interaction":"not_required","vuln_class":"information_disclosure"},"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\nnetfs: zero gaps in read-gaps folio to avoid writing back stale data\n\nnetfs_read_gaps() leaves gaps around a streaming write's dirty region\nunread on the server side, so a short/EOF response there left stale\nfolio content that later got written back.\n\nZero it after the read completes, not before: netfs_wait_for_read()\nreturns rreq-\u003etransferred once ret \u003e= 0, so build an iterator over the\nsame bvec array the read used, advance past ret, and zero the rest.\nThe dirty region already maps to sink pages in that array rather than\nthe real folio, so this can't touch it, and only the actual shortfall\ngets zeroed instead of the whole gap upfront.","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":"netfs: zero gaps in read-gaps folio to avoid writing back stale data","id":"CVE-2026-98843","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"netfs: clear post-EOF pagecache when extending a file via write","id":"CVE-2026-98844"},"packages":[],"prev":{"headline":"module: fix lost error code from codetag_load_module()","id":"CVE-2026-98842"},"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 attacker with local access could read stale data from the Linux kernel netfs subsystem due to improper zeroing of read gaps.","url":"https://insights.sbomify.com/CVE-2026-98843/"}