{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-80566 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-80566 is a denial of service vulnerability in Linux, published on 26 Aug 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-2026-80566 and fix it if it is affected.\n\nWhat it is: CVE-2026-80566 is a denial of service vulnerability in Linux, published on 26 Aug 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-2026-80566 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-2026-80566/ (Markdown: https://insights.sbomify.com/CVE-2026-80566/index.md)","id":"CVE-2026-80566","markdown":"https://insights.sbomify.com/CVE-2026-80566/index.md","name":"CVE-2026-80566","record":{"aliases":["AZL-97709","BELL-CVE-2026-80566","DEBIAN-CVE-2026-80566","UBUNTU-CVE-2026-80566"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel driver","requires_auth":"none","summary":"A missing validation in the Linux kernel hynitron_cstxxx touch driver allows corrupt touch frames to cause state corruption and potential denial of service.","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\nInput: hynitron_cstxxx - validate touch count and finger IDs\n\nThe driver allocates max_touch_num input slots, which are indexed from\nzero through max_touch_num - 1. The current check allows a finger ID\nequal to max_touch_num to reach cst3xx_report_contact(). While the input\ncore ignores out-of-range slot indices, reporting touch data without a\nvalid slot change corrupts the touch state of the previously active slot.\n\nThe touch count is read from the controller's report and is used to\nindex the fixed-size report buffer without first checking its range.\nReject counts larger than the supported number of touch slots before\nchecking the trailing byte or parsing touch data.\n\nReject finger IDs equal to or greater than max_touch_num, and return\nimmediately when an invalid finger ID is encountered so that corrupt\ntouch frames are discarded instead of reporting partial contact state.\n\nThe V821 Avaota F1 board configures the vendor driver with one touch\nslot, so finger ID 1 is already invalid on that device.","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":"Input: hynitron_cstxxx - validate touch count and finger IDs","id":"CVE-2026-80566","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"Input: synaptics-rmi4 - propagate F54 worker errors to V4L2 queue","id":"CVE-2026-80567"},"packages":[],"prev":{"headline":"crypto: qce - fix error path in devm_qce_register_algs","id":"CVE-2026-80565"},"products":["Linux"],"published":"2026-08-26","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":"2026-08-26","vendors":["Linux"]},"summary":"A missing validation in the Linux kernel hynitron_cstxxx touch driver allows corrupt touch frames to cause state corruption and potential denial of service.","url":"https://insights.sbomify.com/CVE-2026-80566/"}