{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-98422 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-98422 is a denial of service vulnerability in Linux, published on 14 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-2026-98422 and fix it if it is affected.\n\nWhat it is: CVE-2026-98422 is a denial of service vulnerability in Linux, published on 14 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-2026-98422 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-2026-98422/ (Markdown: https://insights.sbomify.com/CVE-2026-98422/index.md)","id":"CVE-2026-98422","markdown":"https://insights.sbomify.com/CVE-2026-98422/index.md","name":"CVE-2026-98422","record":{"aliases":["AZL-108110","BELL-CVE-2026-98422","DEBIAN-CVE-2026-98422","GHSA-7fq6-p34m-gv65","UBUNTU-CVE-2026-98422"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel Wi-Fi","requires_auth":"none","summary":"A logic error in the Linux kernel Wi-Fi subsystem allows a local attacker to trigger a kernel warning and potential denial of service by repeatedly toggling AP VLAN interfaces.","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\nwifi: mac80211: reset the AP_VLAN tailroom counter on ifdown\n\nOn ifup, AP_VLAN interfaces get crypto_tx_tailroom_needed_cnt from\nthe AP interface, but it's never decremented again unless the AP is\nalso brought down. Thus, bringing the same AP_VLAN up again will\nincrement the counter again and eventually hit the sanity check:\n\n  WARN_ON_ONCE(sdata-\u003ecrypto_tx_tailroom_needed_cnt !=\n               master-\u003ecrypto_tx_tailroom_needed_cnt);\n\nReset it on ifdown to avoid that.","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":"wifi: mac80211: reset the AP_VLAN tailroom counter on ifdown","id":"CVE-2026-98422","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"wifi: mac80211_hwsim: don't hand frames to mac80211 while stopping","id":"CVE-2026-98423"},"packages":[],"prev":{"headline":"wifi: mac80211: require a peer station for TDLS setup confirm","id":"CVE-2026-98421"},"products":["Linux"],"published":"2026-10-14","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":"A logic error in the Linux kernel Wi-Fi subsystem allows a local attacker to trigger a kernel warning and potential denial of service by repeatedly toggling AP VLAN interfaces.","url":"https://insights.sbomify.com/CVE-2026-98422/"}