{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-80720 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-80720 is a high-severity denial of service vulnerability in Linux, published on 28 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-80720 and fix it if it is affected.\n\nWhat it is: CVE-2026-80720 is a high-severity denial of service vulnerability in Linux, published on 28 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-80720 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-2026-80720/ (Markdown: https://insights.sbomify.com/CVE-2026-80720/index.md)","id":"CVE-2026-80720","markdown":"https://insights.sbomify.com/CVE-2026-80720/index.md","name":"CVE-2026-80720","record":{"aliases":["BELL-CVE-2026-80720","DEBIAN-CVE-2026-80720","GHSA-88fc-rw34-hx7h","UBUNTU-CVE-2026-80720"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A deadlock in the Linux kernel's iomap subsystem can cause a denial of service when biosets are exhausted during I/O splitting.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\niomap: add a separate bio_set for iomap_split_ioend\n\niomap_split_ioend can split bios that already come from\niomap_ioend_bioset and thus deadlock when the bioset is exhausted.\n\nAdd a separate bio_set to avoid this deadlock.\n\nChristian Brauner \u003cbrauner@kernel.org\u003e says:\nMark iomap_ioend_split_bioset static as it is only used in ioend.c,\nfixing the sparse warning reported by the kernel test robot.","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":"iomap: add a separate bio_set for iomap_split_ioend","id":"CVE-2026-80720","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Bluetooth: ISO: ensure no dangling hcon references in iso_conn","id":"CVE-2026-80721"},"packages":[],"prev":{"headline":"mm: mglru: fix stale batch updates after memcg reparenting","id":"CVE-2026-80719"},"products":["Linux"],"published":"2026-08-28","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-08-29","vendors":["Linux"]},"summary":"A deadlock in the Linux kernel's iomap subsystem can cause a denial of service when biosets are exhausted during I/O splitting.","url":"https://insights.sbomify.com/CVE-2026-80720/"}